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Common Conditions Treated with Arthroscopy in Dogs

Common Conditions Treated with Arthroscopy in Dogs

Arthroscopy

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Owners

Discover the most common conditions treated with arthroscopy in dogs, including OCD, elbow dysplasia, ligament injuries, and shoulder 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.

Common Conditions Treated with Arthroscopy in Dogs

Arthroscopy was once a specialized technique used for a narrow range of joint conditions in dogs. Over the past two decades, it has become the standard of care for many of the most common orthopedic problems that affect canine joints. For a full explanation of what arthroscopy is and how it works, see what arthroscopy is.

Understanding which conditions are treated arthroscopically helps owners recognize when their dog's diagnosis is one that arthroscopy addresses, and what the procedure is expected to achieve.

 

Quick answer: The most common conditions treated arthroscopically in dogs are osteochondritis dissecans (OCD) of the shoulder, elbow, or stifle; fragmented medial coronoid process (FMCP) and ununited anconeal process (UAP) as part of elbow dysplasia; and meniscal assessment and treatment in dogs with cruciate ligament surgery. Shoulder instability and biceps tendon pathology are also commonly addressed. Arthroscopy is the standard of care for elbow dysplasia treatment at referral hospitals.

 

Key takeaways

  • OCD is treated arthroscopically across multiple joints: shoulder, elbow, stifle, and tarsus.
  • Elbow dysplasia (FMCP and UAP) is the most common arthroscopy indication in dogs.
  • Meniscal evaluation and treatment is routinely performed arthroscopically during cruciate surgery.
  • Shoulder OCD and biceps tendon pathology are diagnosed and treated in the same procedure.
  • Arthroscopy for elbow dysplasia has replaced open surgery at most referral hospitals.
  • Early treatment through arthroscopy before arthritis establishes produces the best long-term outcomes.

Osteochondritis dissecans (OCD)

OCD is a developmental condition in which a segment of cartilage fails to properly ossify, separates from the underlying bone, and may form a loose flap or fragment within the joint. It primarily affects young large-breed dogs in the shoulder, elbow, stifle, and tarsus.

The detached cartilage causes pain, joint inflammation, and if untreated, progressive arthritis. Arthroscopy allows the surgeon to visualize the OCD lesion, remove the loose cartilage flap, and debride the underlying bone surface.

OCD of the shoulder

This is one of the most common shoulder arthroscopy indications. The OCD lesion typically occurs on the caudal (back) aspect of the humeral head. Metropolitan Veterinary Associates describes: "Osteochondrosis dissecans is seen most commonly in the shoulder on the caudal humeral head, although it also occurs in the tarsus, stifle, elbow, and other joints."

The arthroscopic approach allows complete visualization of the lesion, thorough removal of the cartilage flap, and debridement of the bone bed, all through portals of a few millimeters. Recovery is faster than open shoulder surgery and the joint is disturbed less.

OCD of the elbow

Less common than shoulder OCD but addressed arthroscopically as part of comprehensive elbow evaluation. Dallas Veterinary Surgical Center notes elbow arthroscopy indications include "OCD of humeral head" (within the elbow context).

OCD of the stifle and tarsus

Stifle OCD typically occurs on the lateral femoral condyle. BluePearl Vet Hospital: "Stifle OCD is a relatively uncommon disease that is often operated on arthroscopically. The loose cartilage flap generally occurs in the lateral femoral condyle."

Tarsal OCD is managed similarly when it occurs, with arthroscopic flap removal and bone surface debridement.

Elbow dysplasia: FMCP and UAP

Elbow dysplasia encompasses a group of developmental conditions causing elbow joint abnormality in large-breed dogs. It is the most common cause of front leg lameness in dogs, particularly in Labrador Retrievers, Golden Retrievers, Rottweilers, and Newfoundlands.

Fragmented medial coronoid process (FMCP)

FMCP is the most common elbow dysplasia condition and the most common single indication for arthroscopy in dogs. Part of the medial coronoid process (a small projection of the ulna within the elbow joint) fractures and may remain in place or displace, causing pain and cartilage damage.

BluePearl Vet Hospital: "By far the most common indication is the fragmented medial coronoid process. Arthroscopy for FMCP allows for more complete exploration of the joint, more rapid recovery, and easy retrieval of the coronoid fragment. In most referral hospitals, elbow arthrotomy for FMCP is largely obsolete because of the additional trauma to the joint and morbidity associated with the open procedure."

Key point: arthroscopy has replaced open surgery as the standard of care for FMCP at referral hospitals.

The arthroscopic treatment involves:

  • Complete visualization of the medial compartment
  • Identification and removal of the fragmented coronoid fragment
  • Assessment of cartilage damage on the radial head and humeral condyle
  • Debridement (smoothing) of damaged cartilage surfaces

Metropolitan Veterinary Associates notes: "Outcomes following arthroscopic removal of the fragment depend greatly on the degree of arthritis and cartilage loss present at the time of treatment. Early detection and removal is ideal."

Ununited anconeal process (UAP)

UAP is a condition in which the anconeal process (another projection within the elbow joint) fails to properly fuse to the ulna during development. It causes elbow pain and degenerative joint disease if left untreated.

Arthroscopy is used to assess the anconeal process, evaluate the degree of joint damage, and guide treatment decisions, which may involve fragment removal or lag screw fixation depending on the age of the dog and degree of non-union.

Meniscal evaluation and treatment

The menisci are C-shaped fibrocartilage pads within the stifle (knee) that act as shock absorbers between the femur and tibia. Meniscal tears are common in dogs with cruciate ligament disease.

MedVet: "Stifle arthroscopy is a very effective tool to evaluate the stifle joint, not only to confirm the diagnosis of a cranial cruciate ligament joint, but also to evaluate and treat meniscal tears, as we see them develop frequently in conjunction with CrCL tears."

During cruciate surgery

When dogs undergo TPLO or TTA for cruciate ligament rupture, the meniscus is routinely evaluated arthroscopically. Meniscal tears are identified and the damaged portion removed (partial meniscectomy) through the instrument portal.

Late meniscal tears

Dogs who have already had cruciate surgery may develop meniscal tears in the weeks or months afterward. Arthroscopy allows the meniscus to be assessed and treated through minimal incisions rather than requiring full re-opening of the stifle.

BluePearl: "Arthroscopy may be used in conjunction with TPLO or other stifle repair techniques or to debride late meniscal tears in dogs that have already had stifle surgery."

Shoulder instability and biceps tendon pathology

The shoulder joint is inherently mobile, and instability from ligament laxity is increasingly recognized as a cause of chronic shoulder lameness in active adult dogs. Biceps tendon pathology (inflammation, partial tears, or avulsion) is also common.

Medial shoulder instability (MSI)

Medial shoulder instability occurs when the medial glenohumeral ligament and subscapularis tendon stretch or tear, allowing abnormal range of motion. It's difficult to detect on radiographs and CT.

Arthroscopy allows direct visualization of the medial compartment structures, confirms the instability diagnosis, and guides stabilization treatment.

Biceps tendon pathology

The biceps tendon originates inside the shoulder joint and is subject to inflammation and tearing, especially in working and active dogs. MedVet: "In addition to the conditions discussed above, arthroscopy is used to help diagnose cruciate disease and meniscal injury, treat biceps tendon injury, and monitor progression of healing."

Arthroscopic biceps tendon release (tenotomy) is a common and effective treatment for biceps tendon disease, with faster recovery than open surgery.

For when these conditions lead to an arthroscopy recommendation, see when these conditions indicate arthroscopy.

Hip dysplasia assessment

While hip arthroscopy is less commonly performed than elbow or shoulder procedures, it is used to assess cartilage quality and early joint changes in dogs with hip dysplasia before advanced arthritis develops.

Arthroscopic assessment allows direct grading of cartilage damage and may guide management decisions, including whether conservative management or surgical intervention is most appropriate at that stage.

For how these conditions compare to hip dysplasia management, see hip dysplasia as a treatable condition.

Cartilage damage and joint lavage

Beyond specific named conditions, arthroscopy is used for:

  • Cartilage debridement: smoothing irregular or damaged cartilage surfaces in joints with early-to-moderate osteoarthritis
  • Loose body removal: retrieving chip fractures or free fragments of bone or cartilage that cause pain and joint irritation
  • Joint lavage: thoroughly flushing the joint to remove inflammatory debris, fibrin, and bacteria
  • Synovial biopsy: obtaining tissue samples for histopathology or culture when infection or inflammatory joint disease is suspected

How arthroscopy compares to open surgery for these conditions

For the conditions listed above, arthroscopy typically offers:

  • Better visualization (magnified view of all joint surfaces rather than line-of-sight access)
  • Less post-operative pain
  • Faster return to function
  • Lower complication rate

For the full direct comparison between arthroscopy and open surgery, see how arthroscopy compares to open surgery for these conditions.

Frequently asked questions

My dog has been diagnosed with FMCP. Will they definitely need surgery?

Not automatically. The decision depends on the severity of symptoms, the degree of cartilage damage visible on imaging, and the dog's age. Dogs with FMCP that causes significant lameness typically benefit from arthroscopic fragment removal. Dogs with mild symptoms and minimal cartilage damage may be managed conservatively in some cases. A veterinary orthopedic specialist can assess the specific case.

How soon after OCD diagnosis should arthroscopy happen?

For OCD, earlier treatment generally produces better outcomes. Metropolitan Veterinary Associates: "Early detection and removal is ideal." Untreated OCD allows progressive cartilage damage and arthritis to develop. Once the diagnosis is confirmed, discussion of timing with a specialist is appropriate. Waiting months is not advisable for symptomatic cases.

Can arthroscopy treat arthritis?

Arthroscopy can slow arthritis progression by removing loose fragments, smoothing irregular cartilage, and lavaging inflammatory debris. It doesn't reverse established arthritis or regenerate cartilage. For end-stage arthritis, arthroscopy is a palliative tool rather than a curative one.

The range of conditions arthroscopy addresses in dogs has expanded significantly as the technique has matured and specialist training has spread. For the conditions covered here, it is now often the preferred approach rather than an alternative, because it consistently delivers better visibility, less tissue trauma, and faster recovery than the open surgical alternatives it replaced.

Resources

  • BluePearl Pet Hospital. Arthroscopic Surgery. bluepearlvet.com
  • MedVet. Understanding the Use of Arthroscopy in Dogs. blog.medvet.com
  • Metropolitan Veterinary Associates. Arthroscopy in Canine Orthopedic Disease. metro-vet.com
  • Dallas Veterinary Surgical Center. Arthroscopy. dvsc.com

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