Animal Hospital
  • 631-751-8950
  • 86 Gnarled Hollow Rd.
  • East Setauket, NY 11733
  • M Tu W Th: 8 - 8
  • F: 8 - 5:30
  • Sat: 8 - 4
  • Sun: Closed
  • Appointments only

Nominated for Best of Bethpage
several years in a row

Momee nominations

Nominated for Best Veterinarian
and Best Pet Hospital
Best of Long Island 2015 - 2017

Canine Knee Surgery

Setauket Animal Hospital is proud to offer the services of a board-certified veterinary surgeon for canine knee surgery. Our surgery rates are extremely competitive, and include our trademark progressive, high-quality care. To learn more about our surgical service and rates please call 631-751-8950 or email us at

Ruptured Cranial Cruciate Ligament

In people, the cranial cruciate ligament (CCL) is called the anterior cruciate ligament (ACL). This ligament is a fibrous band of tissue located deep within the knee joint. The CCL is one of the most important stabilizers of the canine knee joint. Tearing or rupturing of this ligament causes joint instability leading to joint swelling and severe pain. A rupture of the CCL is one of the most common reasons for sudden rear leg lameness in dogs, and less commonly in cats. Osteoarthritis (degenerative joint disease) will develop if this instability is not corrected.

Canine knee surgeryCommon signs and symptoms include decreased activity level, decreased muscle mass of the affected leg, a popping sound (which may indicate a concurrent meniscal tear), swelling, stiffness, and pain in the affected leg.

Surgical Procedures

The three procedures we recommend for a CCL rupture are the Tibial Plateau Leveling Osteotomy (TPLO), the Extracapsular Stabilization (Extra-Cap), and the Tibial Tuberosity Advancement (TTA). To determine the best procedure for your pet we take into consideration lifestyle as well as age, weight, and activity level.

Knee surgery is performed by a board-certified surgeon who specializes in orthopedics. If you have questions about the procedures we offer please contact us today at 631-751-8950 or email us at