A retrospective study was conducted in a single referral centre to evaluate osteoarthritis (OA) progression in hips operated on by triple pelvic osteotomy (TPO) compared to unoperated joints. Fifty-nine operated hips in 41 dogs were included (18 bilateral and 23 unilateral TPO’s). A similar technique was used in all cases. A 30° acetabular ventroversion with concomitant 5mm lateralisation was always accomplished. Iliac osteotomy was stabilised using a contoured “Chancrin’s TPO plate”. Hip OA was estimated based on conventional, extended, ventrodorsal radiographic projection using a linear, custom-made grading scale (0-14). All dogs were screened before, immediately after, and long-term (12 months or more – average 56.2 months) following surgery. An owner’s questionnaire-based assessment of clinical outcome was correlated with radiological data. Forty-two operated, and 22 contralateral non-operated hips were followed up radiologically. It appeared that OA tended to progress both in operated, and in dysplastic unoperated hips. However, progression of OA was signifi cantly less pronounced in hips subjected to TPO. Furthermore, a positive correlation between functional recovery, as assessed by owners, and long-term OA grade was found.
Long-term analysis of the progression of hip arthrosis after triple pelvic osteotomy
Date
2006
Journal
EJCAP
Volume
16
Number
2
Pages
161