When your vet recommends FHO surgery, you're agreeing to something that will happen while your dog is under anesthesia and you're in the waiting room. Understanding what actually takes place, step by step, makes the experience less abstract and helps you prepare practically and emotionally.

This guide walks through the full FHO procedure: the preparation before surgery, what happens in the operating room, and what the first hours after surgery look like before your dog comes home. For a broader explanation of what FHO is and what it achieves, see what FHO surgery is.

Quick answer: FHO surgery typically takes 1 to 2 hours under general anesthesia. The surgeon removes the femoral head and neck through an incision over the hip, closes the joint capsule and soft tissue, and sutures the skin. Your dog is monitored in recovery for several hours before discharge. The procedure itself is well-established and considered technically straightforward by veterinary surgeons with orthopedic experience.

Key takeaways

• FHO is performed under general anesthesia: your dog feels nothing during the procedure.
• Pre-surgical bloodwork and X-rays are required to confirm the diagnosis and assess anesthetic safety.
• The procedure takes 1 to 2 hours for most dogs; larger dogs or complex cases may take longer.
• The femoral head and neck are removed completely through a lateral incision over the hip.
• Soft tissue closure is meticulous: the surrounding muscles form the support structure for the false joint.
• Your dog typically stays for several hours post-surgery before discharge with medications and instructions.

Before surgery: the preparation phase

Pre-surgical assessment

FHO is not performed without diagnostic confirmation. Before surgery is scheduled, your vet will complete:

Physical examination:

• Orthopedic assessment of the hip, including palpation for pain on extension and rotation
• Gait analysis
• Assessment of all joints to rule out concurrent disease (Veterinary Practice News notes one-third of dogs referred for hip pain have concurrent stifle disease)

Radiographs (X-rays):

• Standard hip radiographs in dorsoventral positioning to assess the femoral head, acetabulum, degree of arthritis, and joint congruity
• Stifle radiographs if indicated
• Provides the baseline images the surgeon uses for surgical planning and post-operative comparison

Pre-anesthetic bloodwork:

• Complete blood count, chemistry panel, and urinalysis
• Identifies kidney or liver dysfunction that would affect anesthetic drug metabolism
• Essential for senior dogs and any dog with known concurrent health conditions
• Garbizo Animal Clinic: "Our veterinarians will conduct a complete pre-anesthetic assessment, including bloodwork, digital radiographs, and a physical exam to confirm the diagnosis and ensure your pet is a good candidate for the procedure."

The night before surgery

Standard pre-surgical instructions:

• Food: withhold food from midnight (or a specific time your vet designates) before the procedure. The stomach must be empty to reduce aspiration risk under anesthesia.
• Water: some practices permit water until the morning of surgery; follow your vet's specific instructions.
• Medications: ask your vet whether your dog's regular medications should be given the morning of surgery. Some should be given; others should be withheld.
• No bathing or grooming of the surgical site: leave the hair coat as-is. Clipping is done under sterile conditions in the clinic.

Morning of surgery: drop-off

On the day of surgery:

• Bring your dog in at the scheduled time, typically early morning to allow monitoring through the day
• The admissions process includes a brief examination and review of your consent form
• You'll confirm your contact number and the vet's emergency contact protocol
• A brief pre-surgical examination is performed to confirm the dog is in appropriate health to proceed

Most practices will discharge the same day, typically in the late afternoon.

During surgery: what happens in the operating room

Step 1: anesthesia induction

Your dog receives pre-anesthetic medications (a sedative and often a pre-emptive analgesic) to reduce anxiety, lower the anesthetic dose needed, and begin pain management before the skin is cut.

Induction is typically achieved with an intravenous agent. Once unconscious, a breathing tube is placed in the trachea and connected to gas anesthesia for maintenance throughout the procedure.

Monitoring throughout includes:

• Continuous ECG for heart rhythm
• Pulse oximetry for oxygen saturation
• Blood pressure monitoring
• Capnography (monitoring exhaled carbon dioxide)
• Body temperature (dogs lose heat during surgery; active warming is used)

Step 2: positioning and preparation

Your dog is placed in lateral recumbency (on their side) with the affected hip facing up. The surgical area is clipped and prepared using multiple rounds of antiseptic scrub (typically chlorhexidine or betadine alternating with alcohol) to achieve sterile conditions at the skin surface.

Southwest Veterinary Surgical Service notes: "Special care is taken to ensure that the surgery is done under strict aseptic conditions. The dog's hind limb is clipped the day before the surgical procedure, the skin is evaluated for bacterial infections, and blood work and urine testing are performed prior to surgery to screen for infection."

Sterile drapes are applied around the surgical site, leaving only the prepared area exposed.

Step 3: incision and tissue dissection

The surgeon makes an incision along the lateral (outer) aspect of the thigh, directly over the hip joint. The incision length varies with the dog's size.

Using careful dissection, the muscles are separated to expose the hip joint capsule. The goal is to move tissue rather than cut it where possible, preserving the muscle integrity that will later support the false joint.

Step 4: joint entry and dislocation

The joint capsule is incised to access the hip joint directly. The hip is then deliberately luxated (dislocated) to bring the femoral head fully into view.

The round ligament (ligament of the head of the femur, which connects the femoral head to the acetabulum) is severed.

Step 5: femoral head and neck removal

This is the defining step of the FHO procedure.

Using a bone saw or an osteotome (a surgical chisel) and mallet, the femoral head and neck are removed at the base of the neck. PetMD describes it: "Using either a saw or osteotome and mallet, the femoral head and neck are removed."

The surgeon assesses the cut surface to ensure the femoral neck has been completely removed at the appropriate level. Any rough bone edges are smoothed. Complete neck removal is critical: if any neck remains, it can cause continuing bone contact and pain (a recognized cause of revision surgery in published FHO outcome data).

Step 6: soft tissue closure

Closure of the soft tissue around the now-empty socket is performed in layers:

• The joint capsule and periarticular soft tissues are sutured to partially fill the space between the femoral shaft and the acetabulum. This closure helps initiate the environment in which the false joint will form.
• Muscle layers are sutured over the joint capsule in anatomical position
• Subcutaneous tissues are closed
• Skin is closed with sutures or surgical staples

Animal Works Veterinary Surgery: "The surrounding tissues and muscles are left intact and will support the formation of a new fibrous joint over time."

The total operative time is typically 1 to 2 hours. Larger dogs and more complex cases take longer.

After surgery: the hospital recovery phase

Immediate post-operative monitoring

After the surgical site is bandaged, your dog moves to a recovery area. Anesthesia monitoring continues until your dog is fully conscious and able to swallow reflexively.

During this period:

• Body temperature is monitored and supported (dogs are prone to hypothermia after surgery)
• Pain is assessed and additional analgesics administered if needed
• The incision is checked for any immediate bleeding or concerns
• Your dog is kept calm and comfortable in a padded area

Most dogs regain full consciousness within 1 to 3 hours of surgery completion.

Pain management before discharge

Your dog will receive injectable pain medication in the hospital before they go home. This provides a higher level of immediate pain control than oral medications alone and covers the most acute post-surgical period.

By the time you pick your dog up, they should be comfortable enough to walk (with assistance) and oriented to their surroundings.

Discharge: what you receive

At discharge, expect:

• Oral medications: an NSAID (anti-inflammatory) for 7 to 14 days, often gabapentin for 5 to 7 days, and sometimes a short course of an opioid for the first 1 to 3 days
• Written discharge instructions: including activity restrictions, incision care, E-collar use, medication schedule, and when to return for the first recheck
• Emergency contact information: who to call if you have concerns outside business hours
• Recheck appointment: typically at 10 to 14 days for suture removal and incision assessment

What to look for in the first 24 hours at home

The first 24 hours are about settling in and monitoring:

• Drowsiness and disorientation: completely normal as anesthesia clears
• Reluctance to eat: normal on surgery day; offer food in the evening if your dog seems interested
• Not drinking much water: offer water; if they haven't drunk by 24 hours, contact your vet
• Holding the operated leg up: expected for the first days
• Mild incision swelling: expected in the first 48 to 72 hours

For what normal recovery looks like from day one through 12 weeks, see what to expect after surgery.

For the cost of the procedure you've just learned about, see what the procedure costs.

How FHO compares to the procedure you may have been offered instead

If your vet mentioned total hip replacement as an alternative to FHO, the procedures are fundamentally different. FHO removes the femoral head. THR replaces it with a prosthetic implant. Understanding what each involves helps clarify why your vet recommended one over the other.

For the specific indications that led to an FHO recommendation rather than THR, see when FHO is recommended.

For what FHO surgery achieves and what realistic outcomes look like, see success rates for the procedure.

Frequently asked questions

Can I stay with my dog during surgery?

No. FHO is performed in a sterile surgical suite, and no visitors are permitted. You will drop your dog off and receive updates by phone. Most practices will call you when surgery is complete to let you know how it went.

How will I know if something went wrong during surgery?

Your vet will call you as soon as surgery is complete. If any complications arose during the procedure, they'll discuss this with you at that time. Serious intraoperative complications are uncommon with FHO. The most common issue is ensuring complete removal of the femoral neck, which an experienced surgeon confirms before closure.

My dog seems much worse immediately after surgery than before. Is that normal?

Yes, for the first 24 to 48 hours. The dog is in more acute pain than the chronic pain they had pre-surgery, anesthesia affects alertness and coordination, and the leg is being held up rather than used. This is expected. If your dog's condition doesn't begin improving after day 2, contact your vet.

What should I do if I can't reach my vet and something looks wrong?

If you have a concern after hours that you believe requires urgent attention (significant wound opening, obvious neurological signs, inability to rouse your dog), go to the nearest emergency veterinary clinic. Bring your discharge paperwork so they have the surgical context.

FHO surgery itself is the shortest part of the whole process. The decision takes time; the recovery takes weeks. The surgery is one to two hours in the middle. Knowing exactly what happens in those two hours makes the whole experience easier to enter and to explain to the people around you who are also wondering how your dog is doing.

Resources

• PetMD. Femoral Head Ostectomy in Dogs and Cats: How It's Done, Prep, and Recovery. petmd.com
• Animal Works Veterinary Surgery. Understanding Femoral Head Ostectomy (FHO). animalworksvets.com
• Southwest Veterinary Surgical Service. Total Hip Replacement (THR). swvetsurgery.com
• Garbizo Animal Clinic. What to Expect During FHO Surgery for Pets. garbizoanimalclinic.com

Hip pain in dogs is rarely sudden and obvious. It builds gradually, and the signs are easy to miss or misread as normal aging, stiffness, or mood changes.

Knowing what to look for, and understanding which signs suggest the joint damage has progressed to the point where surgery deserves serious consideration, helps you act before your dog's condition deteriorates further.

Quick answer: The signs that may indicate a dog needs FHO surgery include persistent limping that doesn't improve with medication, difficulty rising or lying down, reluctance to exercise or climb stairs, visible muscle wasting in the hindquarters, and joint pain or restricted range of motion on examination. These signs become more urgent when conservative management has been tried and has stopped providing adequate relief.

Key takeaways

• Persistent limping that doesn't improve with rest or medication is the clearest signal to escalate evaluation.
• Difficulty rising or lying down reflects chronic hip pain affecting the most basic daily movements.
• A bunny-hopping gait in the rear legs often signals bilateral hip involvement.
• Muscle wasting in the thigh indicates the dog has been avoiding the leg for a significant period.
• Reduced range of motion in the hip on physical examination is a key diagnostic finding.
• Failure to respond to conservative management is often the deciding factor for FHO recommendation.

Why signs matter as much as diagnosis

A diagnosis of hip dysplasia, Legg-Calvé-Perthes disease, or hip fracture tells you what's structurally wrong. The signs your dog shows tell you how much that structural problem is affecting their daily life.

FHO is not recommended purely on the basis of a radiographic finding. Two dogs with identical X-rays can have very different quality-of-life impacts. The decision to recommend FHO is made when the clinical signs, the physical examination findings, and the response to non-surgical management together indicate that conservative care is no longer adequate.

For the conditions that most commonly lead to an FHO recommendation, see hip dysplasia as a common cause.

For a full explanation of what FHO surgery involves and how the false joint forms, see what FHO surgery is.

Behavioral signs to watch at home

Persistent limping or uneven gait

Limping on a hind leg is the most recognizable sign of hip pain. In FHO candidates, this limping is typically:

• Persistent rather than intermittent: The dog limps consistently rather than occasionally
• Not responsive to rest or medication: NSAIDs and rest provide little or no improvement
• Present during and after activity: The dog is stiff getting up and doesn't loosen up reliably with gentle movement

In the early stages of hip disease, limping may be most visible after exercise or when getting up after rest. As the condition progresses, it becomes constant.

Bunny-hopping gait

In dogs with bilateral hip involvement, both rear legs may move together in a hopping motion rather than alternating normally, particularly at speed. This "bunny hop" is a characteristic sign of hip dysplasia that affects both sides.

Difficulty rising or lying down

Dogs with significant hip pain struggle with transitions between resting and standing. Signs include:

• Hesitating before standing up
• Using the front legs to push up while barely engaging the rear end
• Lowering themselves slowly and awkwardly when lying down
• Resting more frequently and for longer periods than usual

These difficulties with position changes reflect the joint pain triggered by hip flexion and extension.

Reluctance to exercise, jump, or climb stairs

Before an obvious limp develops, many dogs quietly begin avoiding activities that load the hip joint. Watch for:

• Slowing down on walks or stopping before the usual distance
• Refusing to jump into the car or onto furniture
• Hesitating at the bottom of stairs or refusing to climb them
• Less engagement with play, toys, or games
• General reduction in activity level or enthusiasm

These behavioral changes are easy to attribute to aging, tiredness, or personality rather than hip pain, especially in dogs who aren't visibly limping. In a dog known to be at risk for hip disease, these signs are worth taking seriously.

Licking or chewing at the hip area

Some dogs lick or chew persistently at the hip region in response to chronic pain. While this behavior has many causes, localized attention to the hip area in a dog with known hip disease is worth mentioning to your vet.

Physical signs you may notice

Visible muscle wasting in the hindquarters

When a dog consistently avoids loading a painful leg, the muscles in that limb begin to atrophy. You may notice:

• One thigh looks visibly thinner than the other
• The dog's rear end appears asymmetric
• The hip bones are more prominent on the affected side due to muscle loss

Muscle wasting (atrophy) in the hip and thigh indicates the dog has been significantly sparing the leg for weeks to months. It's a sign that chronic pain is affecting function, not just comfort.

Sandringham Veterinary Hospital notes: "Muscle wasting in the affected leg is a serious sign that conservative care is no longer enough, and surgical options should be considered."

Change in posture or stance

Dogs with hip pain often compensate by shifting weight forward. You may notice:

• The dog stands with its rear legs closer together than normal
• The back appears more arched or "crouched" at the rear
• The dog takes shorter steps with the rear legs
• The hindquarters swing laterally during walking

These postural compensations reduce load on the hip but indicate meaningful structural pain.

What the vet finds on examination

When your vet examines your dog for hip pain, they are looking for specific findings that support an FHO recommendation.

Pain on hip extension or rotation

The vet will gently manipulate the hip joint, extending and rotating it through its normal range. A dog with hip pain will typically flinch, tense, or vocalize when the affected joint is moved to its end range.

Reduced range of motion

Normal hip joints in dogs have a wide range of extension and flexion. Arthritic or damaged hips have noticeably reduced range of motion. The vet feels resistance well before the end of what should be the normal range.

Crepitus

Crepitus is a grinding or crackling sensation felt through the joint as it moves. It reflects bone-on-bone contact or irregular joint surfaces. It's a sign of significant joint damage.

Physical findings in conjunction with imaging

The physical examination findings are combined with radiographic findings. X-rays assess the degree of joint damage, any femoral head collapse or fracture, the degree of arthritis, and whether the joint is subluxated (partially displaced).

Pet Health Network summarizes: "Decreased tolerance to exercise, stiffness, limping, or bunny hopping are some of the most obvious signs of hip pain. X-rays help confirm the extent of joint damage."

When signs indicate FHO rather than continued conservative management

Not every dog with hip pain needs FHO. The signs that specifically push toward FHO consideration are:

• Failed conservative management: The dog has been on appropriate pain medication, joint supplements, weight management, and physiotherapy for an adequate period and is still in significant pain
• Quality of life clearly impacted: The dog is not engaging in normal daily activities, is reluctant to move, or is visibly distressed
• Progressive worsening despite management: Signs are getting worse over time rather than stable or improving
• Muscle atrophy suggesting chronic disuse: The leg has visibly wasted, indicating prolonged reduced use

For the full criteria that guide the FHO recommendation, see when these signs indicate surgery is needed.

The pros and cons of proceeding once signs are clear

When these signs are present and conservative care has been maximized, the next step is a detailed discussion of FHO as a management option, including its benefits and limitations for your specific dog.

For what that decision involves, including the advantages and realistic limitations of FHO, see pros and cons of proceeding with FHO.

For non-surgical paths that may still be appropriate depending on the clinical picture, see alternatives to consider before FHO.

Frequently asked questions

My dog limps occasionally but seems fine otherwise. Should I be worried?

Occasional limping that resolves quickly may not indicate severe hip disease. However, in at-risk breeds (German Shepherds, Labradors, Golden Retrievers, large breeds generally), even intermittent limping in the hindquarters warrants a vet assessment. A physical examination and radiographs can determine whether hip disease is present and how far along it is.

My dog never cries in pain but the vet says the X-rays look bad. How can that be?

Dogs are stoic. Many dogs with significant radiographic hip disease show minimal obvious distress because they adapt to chronic pain gradually. The absence of crying or obvious distress doesn't mean the dog isn't in significant pain. The behavioral changes described above (reduced activity, reluctance to climb stairs, stiffness after rest) are often more reliable indicators than vocalization.

How do I know if my dog's limping is from the hip and not the knee?

Hip pain typically produces a shortened hindlimb stride, a bunny-hopping gait in bilateral cases, and stiffness on rising that improves slightly with movement. Knee (stifle) problems often cause more abrupt non-weight-bearing or a distinctive one-sided skip. Your vet can localize the source of lameness through a physical examination that assesses each joint individually.

The signs of hip disease in dogs are gradual, cumulative, and easy to underestimate. By the time a dog is clearly struggling, the joint damage may have been building for months or years. Catching the behavioral changes early, reporting them to your vet, and staying consistent with monitoring once a diagnosis is made gives you the best chance of making the right intervention at the right time.

Resources

• Pet Health Network. Dog Hip Surgery: What You Need to Know about FHO. pethealthnetwork.com
• Sandringham Veterinary Hospital. How Do I Know If My Dog Needs a Femoral Head Ostectomy? sandringhamvethospital.com.au
• PetMD. Femoral Head Ostectomy in Dogs and Cats. petmd.com

Age alone is not a reason to withhold FHO surgery from a dog in chronic hip pain.

That said, senior dogs do bring specific considerations to the table: anesthetic risk, recovery pace, concurrent health conditions, and realistic expectations about functional outcomes. Understanding those considerations helps you have a clear, informed conversation with your vet about whether FHO is the right choice for your older dog. For a full explanation of what the procedure involves, see what FHO involves.

Quick answer: FHO is a legitimate and often appropriate option for senior dogs with chronic hip pain. The surgery is less invasive than total hip replacement and carries lower anesthetic risk than more complex procedures. The key considerations are: pre-surgical health screening to identify anesthetic risk factors, realistic expectations about recovery pace (slower in older dogs), and commitment to post-surgical rehabilitation. Age alone is not a contraindication.

Key takeaways

• Age alone is not a contraindication for FHO: health status matters more than age.
• FHO carries lower anesthetic risk than THR for senior dogs, making it more accessible for older patients.
• Pre-surgical bloodwork and cardiac screening are essential for senior dogs before any surgery.
• Recovery takes longer in older dogs: expect 3 to 6 months rather than 8 to 12 weeks.
• Pain relief is the primary benefit: even partial functional improvement changes quality of life significantly.
• Alternatives may suit some seniors for whom surgery carries high risk or who respond to conservative care.

Why senior dogs often need hip surgery

Hip dysplasia, hip arthritis, and related conditions don't resolve with age. They typically worsen. A dog who was managing adequately on medication at age 7 may no longer be managing well at age 10 as arthritis progresses and pain management becomes harder.

The question for senior dogs is not whether hip surgery should be considered, but whether the specific risks of surgery in an older dog are outweighed by the ongoing pain and declining quality of life from the untreated condition.

For many senior dogs, the answer is yes. A dog living in chronic hip pain that can no longer be adequately controlled with medication is a dog whose quality of life is meaningfully impaired. Treating that pain through FHO can produce significant improvement in comfort and engagement in daily life, even in older patients.

Anesthetic considerations in senior dogs

Higher baseline risk, but manageable

Senior dogs do carry higher baseline anesthetic risk than young adult dogs. A large-scale study on anesthetic mortality in dogs found the risk during or in the 48 hours after surgery was higher in geriatric dogs (1.8%) than in adult dogs (under 0.5%). However, Parnell (2025) notes: "Thoughtful planning, careful drug selection, and meticulous monitoring can help teams manage geriatric anesthesia safely and effectively."

Maryland Veterinary Surgical Services summarizes the current position: "Advances in veterinary medicine have improved surgical outcomes for senior dogs, allowing many to undergo necessary procedures safely."

Age-related anesthetic risk factors in senior dogs:

• Reduced organ reserve (kidney and liver function)
• Altered drug metabolism (medications clear more slowly)
• Higher prevalence of concurrent conditions (heart disease, diabetes, hypothyroidism)
• Reduced thermoregulatory capacity (more prone to hypothermia during surgery)

FHO's advantage over THR for senior patients

FHO is a significantly simpler and shorter procedure than total hip replacement. This matters for senior dogs because:

• Shorter anesthesia duration reduces cumulative anesthetic exposure
• Less surgical complexity means fewer intraoperative variables
• Lower complication profile compared to implant surgery
• No risk of implant rejection, loosening, or luxation

For many senior dogs, FHO is the most appropriate surgical option partly because it's lower-risk than THR, not just because of cost.

Pre-surgical screening requirements

Before FHO in a senior dog, comprehensive pre-surgical screening is standard and important. Maryland Veterinary Surgical Services recommends: bloodwork to assess organ function, chest X-rays to check for heart or lung issues, ECG to evaluate heart rhythm, and urinalysis to detect kidney or bladder concerns.

This workup:

• Identifies hidden risk factors before surgery, allowing anesthetic protocol modifications
• Guides drug selection and dosing
• Allows the surgical and anesthetic team to prepare for the dog's specific risks
• May identify conditions that need to be stabilized before surgery can safely proceed

For the broader indication framework around when FHO is recommended, including senior dogs as candidates, see when senior dogs are candidates.

Recovery in senior dogs: what's different

Recovery after FHO in a senior dog follows the same phases as in younger dogs, but takes longer.

Typical recovery timeline differences:

• Younger dogs: functional recovery by 8 to 12 weeks
• Senior dogs: functional recovery more commonly at 3 to 6 months
• Full muscle development and gait normalization may take up to 6 to 12 months

Why slower? Several reasons:

• Reduced tissue healing capacity compared to younger dogs
• Pre-existing muscle atrophy from the painful period before surgery
• Possible concurrent joint disease in other limbs (stifles, spine, opposite hip)
• Lower energy and activity tolerance during rehabilitation

What this means for you: The rehabilitation commitment for a senior dog is sustained over a longer period and may require more patience. Daily exercises, measured walking, and hydrotherapy sessions have the same principles as for younger dogs but proceed at a gentler pace.

Florence Animal Hospital notes: "Aging pets benefit significantly from individualized anesthesia and pain control plans, including safe sedation, continuous monitoring, and gentle post-operative care."

Functional expectations for senior dogs

What FHO can realistically deliver for an older dog

The primary and most reliable benefit for senior dogs is pain relief. Eliminating bone-on-bone hip contact removes the source of chronic pain. This benefit is available to senior dogs as much as younger ones.

Functional improvement in gait and activity is also expected, though typically less complete than in younger dogs. Common outcomes:

• Noticeably more comfortable movement and willingness to be active
• Reduced need for daily pain medication
• Better sleep and rest quality (chronic pain disrupts sleep)
• More engagement with family and activities
• Slower and less complete gait normalization compared to younger dogs

For how success rates are affected by age, see how age affects success rates.

What to expect at 6 months and beyond

Many senior dogs achieve their best functional level at 3 to 6 months post-surgery rather than 8 to 12 weeks. The ongoing maintenance of this level depends on:

• Weight management: excess weight accelerates decline in the false joint
• Appropriate ongoing exercise: low-impact walking and swimming maintain the muscle that supports the false joint
• Monitoring for compensatory joint disease in adjacent areas

For the full long-term outcome picture relevant to senior dogs, see pros and cons in the context of older dogs.

When FHO may not be the right choice for a senior dog

Not every senior dog is a good FHO candidate. FHO may not be appropriate when:

• Pre-surgical screening reveals significant organ impairment that makes anesthetic risk unacceptably high
• The dog's concurrent health conditions are unstable
• The dog's overall condition or terminal illness means the recovery commitment won't produce meaningful quality of life improvement
• Conservative management is still adequately controlling pain and quality of life is good

For alternatives that may suit senior dogs better in some circumstances, see alternatives that may suit senior dogs.

Practical questions to bring to your vet

When discussing FHO for your senior dog, ask specifically:

• What does the pre-surgical bloodwork show about anesthetic risk?
• Are there any conditions we need to stabilize before surgery?
• What is your honest expectation for functional recovery in a dog of this age, size, and condition?
• What does realistic long-term maintenance look like if the surgery goes well?
• What are the alternatives, and how does continued conservative management compare in terms of quality of life?

Frequently asked questions

Is there an age limit for FHO surgery?

No. There is no specific age cutoff for FHO. The relevant question is health status, not chronological age. A healthy 12-year-old small dog in good organ condition may be a better surgical candidate than a 9-year-old large dog with cardiac disease. Pre-surgical screening is what determines whether the individual dog is appropriate for surgery, not their age alone.

My senior dog is on long-term NSAIDs for hip pain. Is that better than surgery?

Long-term NSAID use in senior dogs carries its own risks: kidney function decline, GI effects, and potential liver changes. If NSAIDs are no longer adequately controlling pain, or if long-term NSAID use is creating its own health concerns, FHO provides a path to pain relief that may reduce or eliminate the need for long-term medication. This is worth discussing specifically with your vet.

My dog is 13. Is surgery really worth it at that age?

It depends entirely on the dog's health, their current quality of life, and what surgery might realistically deliver. A 13-year-old dog in chronic hip pain whose quality of life is significantly impaired may benefit substantially from FHO and have several more comfortable years ahead. The question your vet will help you answer is whether the risks of the procedure are outweighed by the expected quality-of-life improvement for your specific dog.

Senior dogs in chronic hip pain are not candidates for waiting and hoping things improve on their own. The pain gets worse, not better. The question is whether FHO is a safe and practical path to relief for this particular dog at this particular point. With thorough pre-surgical screening, appropriate anesthetic protocols, and realistic expectations about a longer recovery, FHO is a legitimate option for many older dogs that can genuinely change the quality of their remaining years.

Resources

• Parnell. Geriatric Anesthesia: Clinical Considerations for Senior Dogs. parnell.com
• Maryland Veterinary Surgical Services. Senior Dogs and Surgery: Special Considerations. mdvss.com
• Florence Animal Hospital. Is Surgery Safe for Elderly Dogs? florenceah.com

The surgery is done. What happens in the next 8 to 12 weeks at home determines how completely your dog recovers.

FHO post-operative care has one quality that sets it apart from most orthopedic procedures: the goal is not strict rest. It's controlled, progressive movement. The false joint that forms after surgery needs your dog to use the leg. Your job is to guide that process carefully, consistently, and safely.

Quick answer: FHO post-operative care focuses on pain control, incision monitoring, and progressive early movement. Key priorities: give medications as prescribed, keep the E-collar on, begin gentle passive range-of-motion exercises within the first few days, and introduce short leash walks by week 1 to 2. The false joint forms from movement, so early controlled use of the leg is essential to a good outcome.

Key takeaways

• Give pain medication on schedule even when your dog appears comfortable.
• The E-collar is non-negotiable until the incision is fully healed, about 10 to 14 days.
• Begin passive range-of-motion exercises within the first 1 to 3 days as your vet directs.
• Start short leash walks in week 1 to 2: slow, flat, 5 minutes at a time.
• No jumping, running, or rough play for the first 6 to 8 weeks minimum.
• Weigh your dog weekly: weight gain slows recovery and stresses the forming false joint.

Pain management: the foundation of everything

Why it matters more than you think

Adequate pain control in the first days after FHO has a direct effect on recovery. A dog in uncontrolled pain refuses to use the leg. A dog that won't use the leg develops a poorly formed false joint. A dog with inadequate pain medication from day one can be harder to rehabilitate for weeks afterward.

Give medications exactly as prescribed, at the scheduled times, even if your dog seems perfectly comfortable between doses.

What your vet typically sends home

• NSAID (anti-inflammatory): Carprofen, meloxicam, or grapiprant. Reduce pain and inflammation. Must not be given without food.
• Gabapentin: Nerve pain modulator, often used for the first 1 to 2 weeks after orthopedic surgery.
• Opioid short course: Some vets provide a 3 to 5 day supply of a mild opioid for the most acute phase.

Never give human pain medications (ibuprofen, naproxen, acetaminophen, aspirin) to dogs. These are toxic even at low doses.

If your dog seems to be in significant pain despite medication: Call your vet. Additional or alternative pain management options are available.

Incision care: daily monitoring

What to check

Check the incision site once daily, ideally at the same time each day. Take a photo in good lighting so you have a visual record to track changes.

Normal appearance:

• Mild redness directly at the skin closure for the first few days
• Slight swelling of the surrounding tissue in week 1
• Minimal clear or very slightly blood-tinged discharge in the first 24 to 48 hours
• Gradual improvement day over day

Call your vet if you see:

• Redness spreading outward beyond the incision margins
• Yellow, green, or creamy discharge
• Any discharge with a bad odor
• The incision edges visibly separating or opening
• Firm, rapidly growing swelling beneath the incision

Keeping the incision dry

No bathing until the incision is fully healed (typically 10 to 14 days). Keep the area dry. If walks are on wet ground, check that the incision wasn't dampened when you return inside.

E-collar use

The E-collar (cone) prevents licking. Licking introduces bacteria directly into the healing wound and is the most common cause of post-surgical infection in dogs.

The cone must be worn:

• At all times when you are not directly watching your dog
• At night
• During meals (use a bowl your dog can eat from with the cone on, or help them as needed)

Remove only for supervised outdoor activity if your dog cannot navigate safely with the cone on. Replace immediately after.

Soft collars and recovery suits are alternatives. Confirm they prevent your dog from accessing the incision before relying on them.

Activity: the critical balance

Why FHO is different from other orthopedic recovery

Most orthopedic procedures require strict rest to allow bone or hardware to heal undisturbed. FHO is different. The false joint forms from scar tissue, and scar tissue needs movement to develop correctly.

VCA Animal Hospitals states: "Keeping your dog mobile will help keep the scar tissue within the false joint from forming too tightly, allowing your dog to remain flexible."

The risk isn't too much movement early (within reason). The risk is too little.

Week 1 to 2: controlled early movement

Confinement: Crate rest or a small blocked-off room when unsupervised. Block access to stairs.

Outdoor activity: Leash only. 5-minute slow walks on flat ground, 2 to 3 times daily. Grass preferred over hard pavement.

Passive range-of-motion exercises: Begin within the first 1 to 3 days, as directed by your vet.

PROM technique:

1. Lay your dog on their side, operated leg up
2. Support the leg at the hip and just below the knee
3. Gently flex and extend the leg through a comfortable range
4. Hold each position 3 to 5 seconds; repeat 10 times per session
5. 2 to 3 sessions daily

Stop if your dog tenses, vocalizes, or pulls away.

Weeks 2 to 6: progressive rehabilitation

Walk duration increases gradually: add 5 minutes per walk each week. By week 4 to 5, many dogs are managing 15 to 20 minute walks comfortably.

In weeks 2 to 4, active exercises begin:

• Sit-to-stands: 5 to 10 repetitions, 2 to 3 times daily. The dog sits, then stands slowly. This builds the quadriceps and hip muscles that support the false joint.
• Gentle massage: Light stroking along the thigh muscle on the operated side, 3 to 5 minutes once or twice daily.

Weeks 6 to 12: building full strength

After the 6 to 8 week vet recheck confirms healing progress:

• Leash walks extend to 20 to 30 minutes
• Controlled uphill walking (gentle inclines) builds hindlimb strength efficiently
• Hydrotherapy begins if available: underwater treadmill or pool, one to two sessions per week

Still restricted until vet clearance:

• Off-leash running
• Jumping on or off furniture or in/out of cars
• Stairs (supervised only, slow)
• Rough play or interaction with high-energy pets

For a full phase-by-phase physical therapy plan, see physical therapy as part of post-op care.

For the complete week-by-week timeline, see recovery timeline to guide care.

Home environment modifications

A few practical changes before your dog comes home make recovery safer:

• Non-slip surfaces everywhere: Yoga mats, rubber-backed rugs, or grip pads on slippery floors. A dog slipping and landing on the operated hip can set recovery back significantly.
• Block stairs: Baby gates at the top and bottom. Stairs are stressful on the hip and risk a fall during the vulnerable early weeks.
• Low-sided food and water bowls: Your dog shouldn't have to stretch or climb to reach them.
• Ground-level sleeping: Remove access to furniture for the duration of recovery, or lift your dog up and down manually each time (exhausting over 8 to 12 weeks; floor bedding is usually easier).
• Ramp for car access: If your dog needs to travel, a ramp eliminates jumping at the most critical time.

Nutrition during recovery

Reduce calorie intake by 10 to 15% during the restricted activity phase. Your dog's energy expenditure drops dramatically during crate rest, and maintaining pre-surgery food portions leads to weight gain.

Every extra pound of body weight places additional load on the forming false joint. Keeping your dog lean throughout recovery is a direct outcome variable.

If appetite is poor in the first 2 to 3 days post-surgery (common with anesthesia), offer smaller meals more frequently. A bland diet (boiled chicken and plain rice) for a few days is acceptable if the stomach seems sensitive.

For the full nutritional plan and weight management guidance throughout recovery, see diet management during post-op care.

Complications: what to watch for

The most common complications after FHO are infection, failure to use the leg, and excessive scar tissue formation. Catching any of these early is important.

For the full complication overview, see complications that post-op care helps prevent.

What the post-operative period looks like overall

For the full picture of what to expect throughout recovery, including what each phase produces and when the milestones occur, see what the post-operative period looks like.

Frequently asked questions

How often should I give the pain medication?

Follow the prescription label exactly. NSAIDs are typically once or twice daily with food. Gabapentin is often twice daily. Don't skip doses because your dog seems fine, and don't give extra doses if your dog seems uncomfortable. If the prescribed medication isn't controlling pain adequately, call your vet for guidance.

My dog sleeps most of the day and doesn't want to eat. Should I be worried?

Reduced activity and appetite in the first 1 to 3 days after surgery is normal as anesthesia clears. If your dog is still not eating by day 2 to 3, or if lethargy is increasing rather than improving, contact your vet. Progressive lethargy is not normal post-anesthesia recovery.

Can I take the cone off for meals?

Only if your dog won't eat with the cone on and you are directly present and watching at all times during the meal. Put the cone back on immediately afterward. Most dogs adapt to eating with the cone after a day or two; using a slightly raised or wider bowl can help.

When is the first vet recheck?

Most practices schedule a suture removal recheck at 10 to 14 days post-surgery. A second recheck for functional assessment typically happens at 4 to 6 weeks. A radiographic recheck to assess healing is commonly scheduled at 6 to 8 weeks. Follow your specific practice's schedule.

Post-operative care after FHO is a daily practice for 8 to 12 weeks, not a single event. The dogs that recover best are the ones with owners who give the medications consistently, do the exercises daily, resist the urge to let the dog "run it off," and call the vet promptly when something looks different. The surgery gives your dog a new starting point. The home care is what they run from.

Resources

• VCA Animal Hospitals. Femoral Head Ostectomy (FHO) in Dogs. vcahospitals.com
• VSX Veterinary Surgery. Femoral Head and Neck Ostectomy. vsxvet.com
• PetMD. Femoral Head Ostectomy in Dogs and Cats. petmd.com

Finding out your puppy has hip dysplasia is alarming at any age. Finding out they might need surgery before they've finished growing raises a whole new set of questions.

FHO is safe for puppies. In fact, young dogs often adapt remarkably well to FHO because of their flexible, adaptive musculature and their capacity for rapid healing. But FHO is not always the first choice for a young dog, and understanding where it fits in the range of options helps you make the best decision for your specific puppy.

Quick answer: FHO is safe and effective for puppies of any age. The ACVS confirms FHO "can be done at any age." Puppies heal faster than adult dogs and adapt well to the false joint. However, for puppies under 10 months with no established arthritis, preventive procedures like DPO/TPO or JPS may be better options. FHO is most appropriate for puppies who have missed the window for preventive surgery, have irreparable fractures, or have Legg-Calvé-Perthes disease. For a full explanation of what FHO surgery involves, see what FHO involves.

Key takeaways

• FHO can be performed at any age, including in very young puppies.
• Puppies often recover faster than adult dogs due to adaptive musculature and rapid healing.
• Preventive surgeries (JPS, DPO/TPO) are preferred for puppies who still qualify by age and joint condition.
• Legg-Calvé-Perthes disease is a specific indication for FHO in young small-breed puppies.
• Early FHO in large-breed puppies carries the same size-related outcome limitations as in adult large dogs.
• Rehabilitation is even more critical in puppies, whose activity level may exceed what the healing false joint can handle.

Why puppies can develop hip dysplasia

Hip dysplasia develops during puppyhood. The joint forms abnormally as the puppy grows, producing looseness between the femoral head and the acetabulum. This looseness causes abnormal mechanics, cartilage damage, and, over time, osteoarthritis.

Large and fast-growing breeds are disproportionately affected: Labrador Retrievers, German Shepherds, Golden Retrievers, Rottweilers, and Saint Bernards among others. However, small breeds can also develop hip dysplasia, and specific conditions like Legg-Calvé-Perthes disease primarily affect small and toy breeds at a young age.

The American College of Veterinary Surgeons (ACVS) notes: "Early recognition of joint laxity is the key to preventing cartilage damage from progressive joint laxity. Puppies as early as 10 weeks old can be diagnosed with abnormal joint laxity."

FHO at any age: what the ACVS says

The ACVS is explicit that FHO "can be done at any age and can provide enough comfort in a dog weighing less than 60 to 70 lbs to avoid the daily use of anti-inflammatory pain medication."

This is important: age is not a contraindication for FHO. A puppy with a hip that is causing significant pain and can't be managed any other way is a candidate for FHO.

The more important question for puppies is whether FHO is the most appropriate choice for their age, or whether a different surgical option that takes advantage of the puppy's growth phase would produce a better outcome.

The three surgical options for puppies: when each applies

JPS (juvenile pubic symphysiodesis)

JPS is a preventive procedure available only in puppies under 20 weeks of age (PetMD: "less than 5 months old"). It closes a growth plate in the pelvis to change how the hip socket rotates during growth, improving hip congruity.

JPS is most appropriate for:

• Very young puppies (under 20 weeks) with confirmed hip laxity
• Dogs who haven't yet developed significant arthritis
• Cases where the goal is prevention of future joint disease, not treatment of current pain

JPS doesn't treat an already painful hip. It redirects development to prevent the condition from worsening. Once the window closes, JPS is no longer appropriate.

DPO/TPO (double or triple pelvic osteotomy)

DPO/TPO cuts and repositions the pelvic bones to improve how the socket holds the femoral head. It's performed in puppies typically under 10 months of age, before significant arthritis has developed.

Top Dog Health confirms: "In younger dogs with hip dysplasia, other surgical options include Triple Pelvic Osteotomy or Juvenile Pubic Symphysiodesis (JPS)."

DPO/TPO is most appropriate for:

• Puppies under 10 months
• Radiographic evidence of hip laxity but minimal joint damage
• Dogs who are good candidates for improving joint alignment before arthritis is established

Like JPS, DPO/TPO can't be used once significant arthritis is present. The preventive window closes as the puppy matures.

FHO

FHO is most appropriate for puppies when:

• The puppy has missed the window for JPS or DPO/TPO
• Arthritis is already established
• The puppy has Legg-Calvé-Perthes disease
• A traumatic fracture has occurred that can't be repaired
• THR is not appropriate (too young for skeletal maturity requirements, or financial constraints)

For the full FHO indication framework, see when puppies are candidates.

Why puppies respond well to FHO

Several features of puppy physiology make FHO outcomes in young dogs generally good:

Rapid healing capacity

Puppies' tissues heal faster than those of adult or senior dogs. The fibrous scar tissue that forms the false joint develops more quickly, and muscle mass rebuilds more rapidly with rehabilitation.

Adaptive musculature

Young dogs' muscles are highly adaptive. Puppies adjust their movement patterns and muscle development in response to the altered hip mechanics after FHO more readily than adult dogs with established movement habits.

Less established pain patterns

Dogs who have lived with chronic hip pain for years develop compensatory movement patterns that can persist even after pain is removed. Puppies treated early don't have years of compensation to unlearn.

Positive implications for false joint quality

Earlier treatment means less secondary joint damage (arthritis, acetabular changes) at the time of surgery. A cleaner post-FHO environment supports better false joint formation.

Legg-Calvé-Perthes disease: a specific puppy indication

Legg-Calvé-Perthes disease is one of the most common specific indications for FHO in young dogs. It primarily affects small and toy breeds, typically presenting in dogs under 12 months of age.

In Legg-Calvé-Perthes disease, the blood supply to the femoral head is interrupted, causing the bone to deteriorate and eventually collapse. The condition produces progressive hip pain and lameness in young small-breed dogs.

FHO is the standard treatment. The deteriorating femoral head is removed before it collapses further and causes secondary changes in the acetabulum. Young small dogs treated for Legg-Calvé-Perthes with FHO typically achieve excellent outcomes because:

• They are already small (false joint formation is easier)
• They are young (rapid healing and muscle adaptation)
• Early treatment prevents secondary joint damage

For hip dysplasia in puppies as the broader context, see hip dysplasia in puppies.

Size matters even in puppies

The size-related outcome difference that exists in adult dogs applies equally to puppies.

Small-breed puppies with hip dysplasia or Legg-Calvé-Perthes disease undergoing FHO consistently achieve excellent outcomes. Their future adult weight will be manageable for the false joint, and their adaptation to the altered mechanics is excellent.

Large-breed puppies undergoing FHO face the same long-term mechanical challenges as large adult dogs: more weight bearing on the false joint, less reliable long-term function. For large-breed puppies who haven't missed the preventive window, DPO/TPO is usually the preferred option. FHO for a large-breed puppy is appropriate when DPO/TPO is no longer possible and THR (which requires skeletal maturity) isn't yet appropriate.

For how success rates differ in younger dogs, see success rates in younger dogs.

Recovery expectations for puppies

Recovery after FHO in puppies follows the same phases as in adult dogs but with some important differences:

Faster healing: Most puppies progress through recovery phases more quickly than adult dogs.

More energy management required: Puppies' natural energy levels significantly exceed what the healing false joint can handle in the early weeks. Strict confinement and controlled exercise are more challenging in puppies than in older dogs.

Rapid muscle development: With appropriate rehabilitation, puppies rebuild muscle mass quickly. Physical therapy and controlled activity are essential to channel this recovery effectively.

Typical puppy timeline:

• Weeks 1 to 2: Toe-touching and light weight-bearing
• Weeks 3 to 6: Progressive controlled walking; sit-to-stands and basic exercises
• Weeks 6 to 12: Return to more normal activity with vet guidance

For the full recovery expectations by phase, see recovery expectations for puppies.

Frequently asked questions

My puppy is 4 months old and just diagnosed with hip dysplasia. Should they have FHO?

At 4 months, JPS may still be an option depending on the puppy's age (under 20 weeks) and the degree of joint laxity versus damage. DPO/TPO may also be appropriate if arthritis is minimal. Before considering FHO, your vet or a veterinary orthopedic surgeon should assess whether a preventive procedure is still feasible. If it is, that's generally the preferred path for a very young puppy.

My 7-month-old Chihuahua has Legg-Calvé-Perthes. Is FHO appropriate?

Yes. FHO is the standard treatment for Legg-Calvé-Perthes disease in small breeds. At 7 months, the deteriorating femoral head should be removed before secondary changes worsen. Small-breed puppies like Chihuahuas typically achieve excellent FHO outcomes. Consult your vet promptly to schedule the procedure.

Will FHO affect my puppy's long-term development?

FHO does not negatively affect overall growth or development. The false joint forms as the puppy grows, and most puppies adapt extremely well. The main consideration for large breeds is that the false joint must support a heavier adult body; in small breeds, this is not a meaningful concern.

Puppies with hip dysplasia deserve treatment as much as adult dogs do. The advantage of being young is that the body is highly adaptive and recovery is often faster and more complete. The key is choosing the right procedure for the puppy's age, size, and joint condition, which sometimes means FHO and sometimes means taking advantage of a preventive window that won't be available forever.

Resources

• American College of Veterinary Surgeons. Canine Hip Dysplasia. acvs.org
• PetMD. Hip Dysplasia Surgery in Dogs. petmd.com
• Top Dog Health. Femoral Head Osteotomy for Dogs. topdoghealth.com
• VCA Animal Hospitals. Femoral Head Ostectomy (FHO) in Dogs. vcahospitals.com

Your vet has said your dog needs hip surgery. Now you're trying to understand the difference between two options that sound equally serious and equally expensive.

FHO and THR are both real solutions to the same problem, but they solve it in fundamentally different ways. One removes the joint. The other replaces it. Understanding what that means for your dog's size, activity level, and long-term function is the key to this decision.

The core difference: FHO removes the femoral head and lets the body form a false joint of scar tissue. THR replaces the entire hip joint with a prosthetic implant that restores near-normal anatomy. FHO is simpler, cheaper, and suited to smaller dogs. THR delivers superior function and is preferred for larger, more active dogs where budget and health status allow.

Key takeaways

• FHO eliminates pain by removing the bone: no joint remains, so bone-on-bone contact is impossible.
• THR restores joint anatomy: a prosthetic ball and socket replaces the natural hip and provides near-normal function.
• Small dogs do better with FHO because their lower body weight means less demand on the false joint.
• Large active dogs do better with THR because the prosthetic joint supports higher mechanical loads.
• FHO costs $1,000 to $2,500 per hip; THR costs $4,000 to $8,000+ per hip.
• FHO recovery emphasizes early movement; THR recovery requires strict rest for 6 to 8 weeks.

What each procedure actually does

FHO (femoral head ostectomy)

FHO removes the femoral head and neck: the "ball" of the ball-and-socket joint. After surgery, the body fills the resulting space with fibrous scar tissue and muscle, forming a "false joint" or pseudarthrosis. This false joint cushions movement and prevents bone-on-bone contact.

FHO does not restore normal hip anatomy. The false joint doesn't have cartilage, synovial fluid, or the articulating surfaces of a real hip. What it provides is a pain-free buffer that allows comfortable daily movement, particularly in dogs whose body weight doesn't overwhelm the scar tissue's load-bearing capacity.

For a full explanation of the procedure and how the false joint forms, see what FHO surgery is.

THR (total hip replacement)

THR replaces both components of the hip joint: the femoral head is replaced with a metal ball on a stem implanted into the femur, and the acetabulum (socket) is replaced with a metal cup fixed into the pelvis. A polyethylene liner provides the bearing surface.

The result is a prosthetic hip that closely mimics the function of a natural joint. Dogs who receive well-fitted THR implants typically return to full or near-full athletic function.

THR requires specialized surgical training, equipment, and prosthetic implants, making it significantly more expensive and less widely available than FHO.

For a full explanation of what total hip replacement involves, see what total hip replacement involves.

How outcomes compare

In small to medium dogs (under 45 to 50 lbs)

FHO consistently produces good functional outcomes in small dogs. The false joint bears less mechanical load, and the surrounding muscles provide adequate stabilization. Most small dogs return to comfortable daily activity, trotting, playing, and climbing stairs, within 3 to 6 months of surgery.

THR is also performed in small dogs. Advances in implant design mean mini implants are now available for dogs as small as 4 kg. However, the additional cost, complexity, and recovery demands of THR are harder to justify in small dogs when FHO reliably produces excellent pain relief.

In large and giant breeds (over 45 to 50 lbs)

This is where the two procedures diverge most clearly.

FHO in large dogs produces more variable outcomes. The false joint must bear significantly more mechanical load. Published research from the Global Vet Specialists review of multiple FHO studies found:

• 37.1% of large-breed dogs achieved "excellent" or "good" function
• 25.7% had "fair" function (noticeable lameness or carrying the leg in adverse conditions)
• 11.4% had "poor" function (severe gait impairment most of the time)

THR in large dogs produces dramatically better results. Success rates of 80 to 98% are reported across published studies, with most dogs returning to full athletic function within 3 to 4 months.

For a large, active dog, THR is the superior procedure when health status and budget allow.

Long-term function comparison

For detailed long-term FHO outcome data, see FHO long-term outcomes. For THR long-term data, see THR long-term outcomes.

Cost comparison

FHO is significantly less expensive than THR:

The cost difference reflects surgical complexity, implant cost, anesthesia duration, and facility requirements. THR requires specialist surgical centers and board-certified surgeons. FHO can be performed at many general veterinary practices with orthopedic experience.

For bilateral cases (both hips affected):

• Bilateral FHO: $2,000 to $5,000 total (staged or same session)
• Bilateral THR: $8,000 to $16,000+ total (always staged)

For the full FHO cost breakdown, see FHO cost vs THR cost. For the full THR cost breakdown, see THR cost breakdown.

Recovery comparison

The recovery processes for FHO and THR are quite different in approach, duration, and demands.

FHO recovery

FHO recovery is counterintuitively movement-forward. Early controlled use of the leg is encouraged because movement is what shapes the forming scar tissue into a functional false joint.

• Days 1 to 7: Short leash walks for bathroom trips; passive range-of-motion exercises begin
• Weeks 1 to 4: Progressively increasing leash walk duration; physical therapy exercises
• Weeks 4 to 12: Progressive activity increase; muscle building

If the dog doesn't use the leg, the scar tissue can form too tightly, limiting range of motion and producing a poorer false joint.

THR recovery

THR recovery is strict-rest dominant in the early phase. The implant must osseointegrate (bond with the bone) before the joint is loaded progressively.

• Weeks 1 to 6: Strict rest; very limited controlled leash walking; no running, jumping, or stairs
• Weeks 6 to 12: Gradually increasing leash walking; controlled rehabilitation
• Weeks 12 to 16: Return to normal activity for most dogs

The consequence of premature activity in THR is implant loosening or luxation, which can require revision surgery. The strict rest phase is non-negotiable.

Which is right for your dog?

The decision comes down to the intersection of several factors:

Global Vet Specialists summarizes: "FHO is a low-risk procedure. The trade-off is the high risk of dysfunction. THR is usually a much better option" for cases where it is feasible.

The key question your vet is answering is: given this dog's size, activity expectations, health status, and your budget, which procedure gives the best balance of pain relief, function, and realistic recovery?

For FHO pros and cons in this comparison, see FHO pros and cons. For candidacy criteria for THR, see how to know if THR is appropriate.

Frequently asked questions

Can a dog have FHO if they're not a good THR candidate?

Yes, and this is one of the most common situations where FHO is chosen for large dogs. When THR isn't appropriate due to financial constraints, anesthetic risk, or other health factors, FHO provides pain relief as an alternative. The functional outcomes may be less complete than THR, but pain relief is usually meaningful.

Can a dog who had FHO later get THR if FHO didn't work well?

Technically yes, but it's significantly more challenging than performing THR as the primary procedure. The tissue changes that occur after FHO make THR conversion more complex. This is one reason why the FHO decision should be made with full awareness of what THR would offer, before choosing FHO for a dog who would be a good THR candidate.

How does rehabilitation differ between the two procedures?

FHO recovery requires early movement to shape the forming scar tissue. THR recovery requires strict rest to allow implant osseointegration. The difference is significant enough that the post-operative care instructions for each procedure are essentially opposite in approach during the first few weeks.

FHO and THR both solve the problem of hip pain. What they don't both deliver equally is joint function, particularly in large dogs. If the goal is pain-free movement in a small dog or cat, FHO is an excellent choice. If the goal is full athletic restoration in a large active dog, THR delivers what FHO cannot. Knowing which goal is realistic for your dog is the starting point for this decision.

Resources

• Global Vet Specialists. Total Hip Replacement vs Femoral Head Ostectomy. globalvetspecialists.org
• VCA Animal Hospitals. Femoral Head Ostectomy (FHO) in Dogs. vcahospitals.com
• Simon Vet Surgical. Hip Dysplasia Surgery in Dogs. simonvetsurgical.com