Abstract
Objective The aim of this study was to assess the kinetic and radiographic outcome of unilateral
double pelvic osteotomy (DPO) using a temporospatial pressure walkway, preoperative
and postoperative radiographs.
Study Design Retrospective case series of six dogs that underwent unilateral DPO for canine hip
dysplasia. The untreated limb was unfit for DPO due to radiographic evidence of osteoarthritis
and was therefore managed non-surgically. Preoperative and postoperative radiographs
and kinetic data were compared between untreated and DPO-treated hips using a Wilcoxon
signed-rank test.
Results There was no significant difference in British Veterinary Association Hip Dysplasia
Scheme (BVA-HD) scores between untreated and DPO-treated hips preoperatively (p-value = 0.09) and postoperatively (p-value = 0.06). The median postoperative GAIT4 Dog Lameness Score was lower in untreated
hips than DPO-treated hips but was not statistically different (p-value = 0.18).
Conclusions All dogs in this case series achieved a total pressure index and GAIT4 Dog Lameness
Score on the DPO-treated hip comparable to normal limbs. All untreated hips in this
series had increased BVA-HD scores at follow-up, whereas all DPO-treated hips had
reduced BVA-HD scores. This difference was not significant and warrants further studies.
We conclude total pressure index may be preserved in hips treated with unilateral
DPO, while the contralateral hip is managed non-surgically.
Keywords
double pelvic osteotomy - canine hip dysplasia - temporospatial pressure walkway -
radiographs - osteoarthritis
