Use of Physical Therapy to Augment Recovery in Canine Subject with Ruptured Cranial Cruciate Ligament

The cranial cruciate ligament (CCL) is one of the main stabilizing structures in the stifle joint and rupture of this ligament is one of the most prevalent orthopedic conditions in canines. Damage to the CCL is caused in several ways, including stretching, tearing or complete rupture. The subject of this case study is a seven-year-old canine called “Happy” who is a 43-pound Queensland Heeler with a ruptured CCL in his left rear stifle joint. At the appearance of lameness, Happy’s owner brought him to be examined by a veterinarian. Upon examination, a veterinary surgeon diagnosed Happy with CCL rupture based on the telltale “drawer movement” of the stifle joint. Additionally, x-rays revealed damage to the meniscus inside the stifle capsule. Corrective surgery was performed on April 23, 2011 without any complications and Happy was discharged with instructions for week-long confinement, with exception for elimination purposes. Happy was prescribed a set of knee-strengthening exercises and physical therapy began on May 3, 2011. Within twenty days post-op, Happy was able to apply minimal body weight on the affected leg.  As physical therapy continued, Happy became capable of putting increasing amounts of weight on his leg to the point of only mild lameness. With the help of physical therapy, it is the goal of this case study to continue strengthening exercises until full mobility and strength returns. Happy’s case emphasizes the importance of physical therapy following CCL repair in canines. Without physical therapy, patients don’t recover as completely.