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What Is Arthroscopy and When Is It Used in Dogs?

What Is Arthroscopy and When Is It Used in Dogs?

Arthroscopy

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Owners

Learn what arthroscopy in dogs is, how it works, and when vets use it for joint issues like elbow dysplasia, OCD, or ligament injuries

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.

What Is Arthroscopy and When Is It Used in Dogs?

Arthroscopy is one of the most significant advances in veterinary orthopedic surgery of the past two decades. It allows surgeons to see inside a joint and treat problems there with far less disruption to surrounding tissue than traditional open surgery.

For many of the most common joint conditions in dogs, arthroscopy has become the standard of care rather than an alternative to it.

 

Quick answer: Arthroscopy is a minimally invasive surgical technique where a small camera (arthroscope) is inserted into a joint through a tiny incision. The surgeon views the joint interior on a monitor and can simultaneously treat problems through additional small instrument ports. It's used for diagnosis and treatment of OCD lesions, fragmented coronoid process, ununited anconeal process, meniscal tears, and other joint conditions. Recovery is faster and less painful than open joint surgery.

 

Key takeaways

  • Arthroscopy uses tiny incisions (a few millimeters) rather than the large incisions of open surgery.
  • The arthroscope is a thin tube with a camera and light that projects magnified joint images onto a monitor.
  • Diagnosis and treatment can occur in the same procedure rather than requiring separate surgeries.
  • The elbow is the most commonly arthroscoped joint in dogs; the shoulder, stifle, and hip follow.
  • Recovery is faster than open surgery: most dogs go home the same day and walk immediately.
  • Arthroscopy is considered low-risk with a low complication rate according to VCA Animal Hospitals.

What arthroscopy actually is

Arthroscopy comes from the Greek "arthro" (joint) and "skopein" (to look). The procedure was first described in human medicine in 1912 by Danish surgeon Severin Nordentoft. Its use in veterinary medicine has expanded dramatically since the 1990s and is now standard practice at referral hospitals for many joint conditions.

VCA Animal Hospitals defines it: "Arthroscopy is a minimally invasive therapy that is used to examine, diagnose, and treat diseases and conditions that affect joints."

The equipment

The core instrument is the arthroscope: a thin rigid tube (typically 1.9 to 4 mm in diameter) containing:

  • A camera chip or fiber-optic lens at the tip
  • A light source to illuminate the joint interior
  • A channel for sterile irrigation fluid

The arthroscope connects to a camera unit that projects magnified, high-resolution images of the joint interior onto a monitor in the operating room. The surgeon operates by watching the monitor rather than looking directly into the joint.

How it works

  1. The dog is anesthetized and the joint is aseptically prepared
  2. Sterile fluid (typically saline) is used to distend (expand) the joint, creating the working space the arthroscope needs
  3. A small stab incision (2 to 3 mm) is made and the arthroscope is introduced into the joint
  4. Additional 2 to 3 mm portals are created for instrument insertion
  5. The surgeon examines all internal joint structures on the monitor: cartilage surfaces, synovial membrane, ligaments, menisci
  6. Surgical treatment is performed through the instrument portals using specialized miniature tools
  7. The joint is lavaged and the small incisions are closed with a single suture or staple

The SustainableVet arthroscopy guide notes: "Sterile fluid is used to expand the joint and improve visibility. Small instruments can also be inserted through these openings to remove loose tissue, repair damage, or take samples for testing."

What arthroscopy can do: diagnostic and therapeutic uses

Diagnostic use

Arthroscopy provides superior diagnostic detail compared to other imaging. Conditions that are subtle or invisible on radiographs, CT, or MRI may be clearly visible arthroscopically.

Advantages over imaging alone:

  • Directly visualizes cartilage surface quality (grading, fissuring, erosion)
  • Identifies loose fragments not visible on radiograph
  • Assesses ligament integrity (tension, tears, partial tears)
  • Evaluates synovial membrane health
  • Allows synovial biopsy for culture or histopathology

In many cases, arthroscopy is both the definitive diagnosis and the treatment in the same anesthetic event.

Therapeutic use

The surgical treatments most commonly performed through an arthroscope in dogs:

  • Removal of OCD lesions: The detached or loose cartilage flap is removed through the instrument portal; the underlying bone surface is debrided
  • Retrieval of loose fragments (joint mice): Fragments of bone or cartilage that broke free into the joint are removed before they cause progressive damage
  • Fragmented coronoid process treatment: Removal of the abnormal coronoid fragment in dogs with elbow dysplasia
  • Meniscal assessment and treatment: In TPLO surgery, the meniscus is often examined arthroscopically for tears
  • Synovial biopsy: Taking tissue samples from the joint lining for laboratory analysis
  • Joint lavage: Flushing the joint to remove inflammatory debris

Which joints are treated arthroscopically in dogs

The elbow

The elbow is the most frequently arthroscoped joint in veterinary practice. BluePearl Vet Hospital: "Arthroscopic procedures of the elbow are among the most common arthroscopic procedures performed."

Elbow arthroscopy is indicated for:

  • Fragmented medial coronoid process (FMCP): The most common elbow arthroscopy indication; the fragment is removed and the joint is assessed
  • Osteochondritis dissecans (OCD) of the elbow: Cartilage flap removal
  • Ununited anconeal process (UAP): Assessment and treatment of this elbow growth abnormality
  • Diagnostic exploration and biopsy

BluePearl notes: "In most referral hospitals, elbow arthrotomy (open surgery) for FMCP is largely obsolete because of the additional trauma to the joint and morbidity associated with the open procedure." Arthroscopy has replaced open surgery as the standard of care for elbow dysplasia treatment.

The shoulder

Shoulder arthroscopy is used for:

  • OCD of the shoulder: Cartilage flap removal; one of the most common shoulder arthroscopy indications
  • Biceps tendon pathology: Assessment and treatment of inflammation or tears
  • Medial shoulder instability: Confirmation and potential repair of ligament damage

The shoulder is particularly well-suited to arthroscopy because X-rays and CT often underestimate soft tissue pathology. Arthroscopy reveals what imaging can't.

The stifle (knee)

Stifle arthroscopy is used to:

  • Assess the meniscus in dogs undergoing cruciate ligament surgery (TPLO or TTA)
  • Treat OCD of the stifle (less common than shoulder or elbow)
  • Diagnose joint pathology causing stifle pain not fully explained by imaging

The hip

Hip arthroscopy is less commonly performed than elbow or shoulder but is used for:

  • Assessment and treatment of hip OCD
  • Diagnostic evaluation of painful hip conditions
  • Lavage and synovial biopsy when infection or inflammatory joint disease is suspected

For how hip dysplasia is managed compared to arthroscopic conditions, see hip dysplasia as a treatable condition.

For the full range of specific conditions arthroscopy addresses across all joints, see conditions arthroscopy treats.

Other joints

Carpus (wrist) and tarsus (hock) arthroscopy is performed less frequently but is used for OCD lesions and chip fractures in these joints.

How arthroscopy compares to open surgery

FactorArthroscopyOpen surgery
Incision size2 to 3 mm (multiple portals)2 to 10 cm depending on joint
Tissue disruptionMinimalSignificant muscle and capsule disruption
Post-operative painLowerHigher
Recovery timeFaster (days to weeks)Slower (weeks to months)
Complication riskLowHigher
Visualization of jointSuperior (magnified, all surfaces)Limited by access
Same-day dischargeUsuallyLess commonly
CostHigher equipment costLower equipment cost

 

For the full comparison between arthroscopy and open surgery, see how arthroscopy compares to open surgery.

Recovery after arthroscopy

Most dogs go home the same day as the procedure. VCA Animal Hospitals: "Arthroscopy is considered a low-risk procedure with a low rate of complications."

BluePearl: "Most dogs with arthroscopic procedures can go home the same day as the procedure and are able to walk on the operated leg right away."

Typical recovery:

  • Initial restricted activity: 2 to 3 weeks
  • Full recovery: 6 to 8 weeks depending on the condition treated
  • No large incision to manage; tiny portal sites heal quickly

For what to expect during and after the procedure, see what the procedure involves. For when these conditions indicate arthroscopy, see when arthroscopy is the right choice.

Frequently asked questions

Is my dog a candidate for arthroscopy?

Candidacy depends on the joint affected, the condition causing lameness, the dog's size (very small joints may be technically difficult to arthroscope), and the surgeon's experience. A board-certified veterinary surgeon who performs arthroscopy can assess whether your dog's specific condition is suitable.

Is arthroscopy available at my regular vet?

Generally no. Arthroscopy requires specialized equipment (arthroscopes, camera systems, irrigation pumps, miniature surgical instruments) and specific training. Most arthroscopic procedures in dogs are performed at veterinary referral hospitals and teaching hospitals.

What happens if arthroscopy reveals more damage than imaging suggested?

This is common. Arthroscopy regularly reveals pathology invisible on radiographs. In most cases, the surgeon proceeds with appropriate treatment in the same anesthetic event since the joint is already open and the necessary instruments are available.

Does arthroscopy hurt dogs?

For information on pain management during and after arthroscopy, see pain management during and after arthroscopy.

Arthroscopy represents a genuine advance in how joint disease is managed in dogs. The ability to see inside a joint clearly, diagnose precisely, and treat effectively, all through incisions smaller than a pencil, has made procedures that once required extensive open surgery into day procedures with faster recovery and fewer complications. For the right condition, it's not just better than open surgery; in many cases, it's replaced it entirely.

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