PMID: 9656029Jul 10, 1998Paper

Preoperative variables affecting long-term outcome of triple pelvic osteotomy for treatment of naturally developing hip dysplasia in dogs

Journal of the American Veterinary Medical Association
L M RasmussenA J Lipowitz

Abstract

To determine whether preoperative radiographic evidence of degenerative joint disease (DJD), hip joint laxity, or age at surgery is associated with long-standing DJD or hip function in dogs with hip dysplasia (HD) that had a triple pelvic osteotomy (TPO). Prospective study. 34 dogs with HD. Dogs that had TPO performed during an 8-year period were chosen for long-term follow-up evaluation that included physical examinations, pelvic radiographs, and owner questionnaires. Data on radiographic evidence of DJD, Norberg angle, and percentage of femoral head coverage were retrieved from preoperative records and determined from follow-up radiographs. Approximately 40% of dogs had progression of DJD. Eighty-seven percent of dogs received excellent or good physical examination scores, and 76% received excellent or good at-home activity scores. Preoperative and long-standing DJD were not associated. The risk of DJD was increased with increased age at surgery, narrower preoperative Norberg angle, and lower percentage of femoral head coverage, but these variables were not associated with clinical hip function. TPO for treatment of HD in dogs may slow, rather than stop, radiographic progression of DJD; however, clinical outcome is acceptable...Continue Reading

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