Abstract
To describe the outcome of cranial closing wedge osteotomy (CWO) of the tibia for treatment of cranial cruciate ligament (CrCL)-deficient stifles in dogs with a body weight of <15 kg. Retrospective case series. Forty-five client-owned dogs (n=55 stifles). Medical records (2005-2014), radiographs, and owner questionnaire were used to identify the surgical procedure performed, associated complications and outcome in 45 dogs undergoing CWO in 55 stifles. Data for 55 stifles from 45 dogs were included. Bichon Frise was the most frequent dog breed (n=11). Mean pre- and postoperative tibial plateau angle (TPA) were 36.3° (95% CI 35.1-37.5) and 7.5° (95% CI 6.7-8.2), respectively. Pin and tension bands were placed in 38/55 stifles (69%). The most frequent complication at short-term follow-up (2 weeks) was incisional complications in 8 stifles; all resolved with systemic antibiotic administration alone. Data were available for all stifles at 8 week follow-up with an overall complication occurrence in 16/55 stifles (28%); 1 dog required revision surgery. Tibial osteotomy healing was evident on radiographs at 8 weeks postoperative in 53 stifles (96%), considered complete in 27 stifles, and good in 26 stifles. Follow-up owner questionnaire was available for 36 dogs at a mean of 24 months and 34/36 owners (94%) were satisfied with the procedure and considered their dog had a good quality of life with minimal long-term complications. Dogs with a body weight <15 kg undergoing CWO for treatment of a CrCL-deficient stifle had a good outcome based on clinical status, radiographic evaluation, and owner questionnaire.
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