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Arthroscopy vs Open Surgery: Guide for Dog Owners

Arthroscopy vs Open Surgery: Guide for Dog Owners

Arthroscopy

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Owners

Compare arthroscopy vs open surgery in dogs. Learn differences in recovery, cost, risks, and when vets recommend each option for joint problems

By 

Sustainable Vet Group

Updated on

July 17, 2026

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This article is for informational purposes only and is not a substitute for professional veterinary advice. Every case is unique, so always consult your veterinarian for guidance specific to your pet.

This content is intended for veterinary professionals for educational purposes. It does not replace clinical judgment or tailored advice. Always rely on your training, expertise, and the specific context of your patients.

Arthroscopy vs Open Surgery: Guide for Dog Owners

When your vet or specialist recommends joint surgery for your dog, you may hear both "arthroscopy" and "open surgery" mentioned. Understanding the difference, and why the choice matters, helps you ask better questions and understand what your dog is going through. For a full explanation of what arthroscopy is and how it works, see what arthroscopy is.

 

Quick answer: Arthroscopy uses tiny incisions (2 to 3 mm) and a small camera to access the joint, causing far less tissue disruption than open surgery. It offers superior visualization, less post-operative pain, faster recovery, and lower complication rates for most joint conditions. Open surgery is still used when the joint requires direct physical access that arthroscopy can't provide, or when the surgeon needs to place implants, stabilize structures, or address complex anatomy. For many common conditions, arthroscopy is the preferred approach at referral hospitals.

 

Key takeaways

  • Arthroscopy uses 2 to 3 mm incisions compared to the much larger cuts of open surgery.
  • Arthroscopy provides superior visualization: magnified, illuminated view of all joint surfaces.
  • Less post-operative pain is consistently demonstrated with arthroscopy vs. open joint surgery.
  • Recovery is faster: most dogs walk the same day and return to activity within weeks rather than months.
  • Complication rates are lower with arthroscopy for most joint conditions.
  • Open surgery is still needed for ligament reconstruction, implant placement, and complex structural repair.

The fundamental difference

Open surgery (arthrotomy)

Open surgery involves making an incision large enough to directly expose the joint. The surgeon can see and touch the joint structures directly, without a camera. This direct access is necessary when:

  • Physical manipulation of structures is required (placing a screw, cutting bone, repairing a ligament)
  • The repair requires working at a scale too large for arthroscopic instruments
  • The joint anatomy makes arthroscopic access impractical

Open joint surgery typically requires cutting through multiple tissue layers to reach the joint, including skin, subcutaneous tissue, muscle or fascia, and the joint capsule. All of these layers must be sutured closed afterward. The resulting soft tissue disruption causes more post-operative pain and takes longer to heal.

Arthroscopy

Arthroscopy accesses the joint through portals of 2 to 3 mm each. One portal accepts the arthroscope (camera and light). Additional portals accept surgical instruments. The joint is distended with sterile fluid to create working space.

WSAVA clinical evidence review: "The advantages of minimally invasive arthroscopy compared to standard open arthrotomy are evident and proved clinically by reduced postoperative pain and accelerated recovery. Arthroscopy improves visualization of articular structures by magnification and illumination, and constant irrigation with fluids."

The key insight: less tissue disruption doesn't mean less visibility. It means more visibility, through a magnified, brightly lit camera system, with the ability to examine all joint surfaces including areas that would be difficult to reach with open surgery.

Visualization comparison

This is the area where arthroscopy's advantage is most counterintuitive.

Open surgery visualization

The surgeon sees the joint through the incision. The view is limited by the angle of the incision and the depth of the joint. Hidden surfaces, tight recesses, and subtle findings may be missed. The Joint surface visible depends on how much tissue is retracted and how deeply the surgeon can see.

Arthroscopy visualization

The camera is placed directly inside the joint. It captures magnified, high-resolution images of every cartilage surface, ligament, meniscus, and synovial membrane. The image is projected on a monitor in real time.

MedVet: "Arthroscopy allows a thorough examination of the joint." Dallas Veterinary Surgical Center's arthroscopy images show the level of detail achievable: clear visualization of fragmented coronoid processes, OCD cartilage flaps, and meniscal tears with surgical precision.

For conditions like meniscal tears, partial cruciate tears, and early OCD, arthroscopy reveals pathology that open surgery may miss because the surgeon can't see around corners without the camera.

Pain and recovery comparison

Post-operative pain

Arthroscopy consistently produces less post-operative pain than open surgery for equivalent joint procedures. The reason is straightforward: less tissue was cut. Fewer nerves were disrupted. Less muscle was retracted or incised.

Most dogs undergoing arthroscopy can walk on the operated leg the same day. Most dogs undergoing open joint surgery require several days before weight-bearing is expected.

BluePearl Vet Hospital: "Due to the small surgical sites of 3 mm diameter, there is greatly reduced post-operative pain compared to open joint surgery, so most dogs are walking on the operated leg right away."

Recovery timeline

Recovery stageArthroscopyOpen surgery
First weight-bearingSame day or within 24 hours3 to 7 days typically
Suture removal10 to 14 days (minimal incisions)10 to 14 days (larger wound)
Return to controlled walkingDays 1 to 3Week 1 to 2
Full activity clearance4 to 8 weeks depending on condition8 to 16 weeks depending on procedure
Hospital stayUsually same-day dischargeOften 1 to 3 days

 

Complication rates

Arthroscopy carries a lower overall complication rate than open joint surgery for the conditions it treats. The main reasons are smaller incisions (less surface area for infection), less tissue disruption (less inflammation), and shorter anesthetic time.

VCA Animal Hospitals: "Arthroscopy is considered a low-risk procedure with a low rate of complications."

When arthroscopy is the better choice

Arthroscopy is preferred when the condition involves:

  • Removing a loose fragment or cartilage flap (OCD lesion, coronoid fragment)
  • Assessing or treating the meniscus
  • Diagnosing and treating soft tissue pathology (biceps tendon, shoulder ligaments)
  • Comprehensive joint assessment where all surfaces need to be evaluated
  • A condition where open surgery would require significant muscle disruption

Specific conditions where arthroscopy is the standard of care:

  • Fragmented medial coronoid process (FMCP)
  • Osteochondritis dissecans (OCD) of the shoulder, elbow, or stifle
  • Meniscal assessment during cruciate surgery
  • Shoulder instability assessment

For the full list of conditions treated arthroscopically, see conditions where the comparison matters.

When open surgery is still the better choice

Open surgery remains necessary when:

  • Bone needs to be cut or repositioned: TPLO (tibial plateau leveling osteotomy) for cruciate disease; pelvic osteotomy; tibial tuberosity transposition for MPL
  • Implants need to be placed: bone plates, screws, pins, hip prostheses
  • Ligament reconstruction is needed: lateral suture placement, other extra-articular stabilization procedures
  • The joint is too small for arthroscopic instruments in a very small dog
  • The condition requires a degree of physical manipulation that can't be done through instrument portals

TPLO for cruciate disease is the most common example: the stifle is often assessed arthroscopically for the meniscus, but the TPLO bone cut is then performed through open surgery. Both techniques are used in the same procedure for different purposes.

For the arthroscopy recovery process that follows when arthroscopy is the choice, see arthroscopy recovery expectations.

For how recovery duration compares between arthroscopy and open surgery in concrete terms, see recovery comparison with open surgery.

Cost comparison

Arthroscopy typically costs more upfront due to the specialized equipment and training required. However, the total cost may be similar to or lower than open surgery when accounting for recovery costs.

Cost factorArthroscopyOpen surgery
Equipment and facilityHigher (specialized)Lower
Surgeon feeOften higher (specialist)Variable
Hospital stayShorter (lower cost)Longer (higher cost)
Post-op medicationLess required (less pain)More required
Complication managementLess often neededMore often needed
Physical therapyShorter courseLonger course

 

For specific cost figures, see cost comparison with open surgery.

Limitations of arthroscopy

Arthroscopy is not superior in every situation:

  • Surgeon learning curve: arthroscopy requires specific training and regular practice. An experienced open surgeon without arthroscopy training may produce better outcomes with open surgery than an inexperienced arthroscopist.
  • Equipment requirements: specialist facilities only; not available at general practices.
  • Certain conditions still require open surgery: no arthroscopic technique can cut bone or place implants.
  • Advanced arthritis: arthroscopy can debride and lavage but can't regenerate cartilage; in end-stage disease, open surgery for joint replacement may be the only effective option.

Frequently asked questions

My vet recommended open surgery for my dog's elbow. Should I seek an arthroscopy opinion?

For elbow dysplasia (FMCP or UAP), arthroscopy is the standard of care at referral hospitals and has largely replaced open elbow surgery. If your regular vet has recommended open elbow surgery, a consultation with a board-certified veterinary surgeon who performs arthroscopy is entirely reasonable to explore whether the arthroscopic approach is appropriate for your dog's specific case.

Can a surgeon switch from arthroscopy to open surgery during the same procedure?

Yes, and this happens. If arthroscopic evaluation reveals a condition that requires open access, the surgeon can convert to open surgery in the same anesthetic event. This is planned for occasionally and discussed pre-operatively when the specific findings aren't yet fully known.

Is arthroscopy available for all dog sizes?

Mostly. Very small joints in very small dogs may be too small for standard arthroscopic instruments. However, equipment for small patients is available and continues to improve. Most dogs from medium breeds upward are suitable for arthroscopy of the major joints. Your specialist can advise on whether your dog's size is a limiting factor.

How do I know if the surgeon recommending open surgery has considered arthroscopy?

Ask directly: "Is arthroscopy an option for this condition? If not, why not?" A surgeon who routinely performs both will be able to explain clearly why one is preferred for your dog's specific case. If you're uncertain, a second opinion from a board-certified orthopedic surgeon is always appropriate for significant joint surgery.

The choice between arthroscopy and open surgery is rarely black and white. For many common joint conditions in dogs, arthroscopy is now the preferred option because it delivers better outcomes with less disruption. For conditions requiring physical reconstruction, open surgery remains essential. The best answer depends on the specific diagnosis, the individual dog's anatomy, and the surgeon's experience with both techniques.

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