University of Prince Edward Island, Atlantic Veterinary College, Charlottetown, Canada.
University of Minnesota, College of Veterinary Medicine, St Paul, MN, USA.
Vet Surg. 2021 Jul;50(5):1054-1064. doi: 10.1111/vsu.13605. Epub 2021 Mar 12.
To review the outcome of dogs that underwent Zürich cementless total hip arthroplasty (Z-THA) for the repair of acute and chronic capital physeal fractures (CPF) and document the CPF-related hip remodeling.
Retrospective study.
Fifty-three Z-THA in 53 dogs.
Medical records of dogs (2006-2019) that underwent Z-THA for CPF management were reviewed. Dogs were divided into two groups on the basis of the days elapsed between CPF diagnosis and Z-THA, acute (≤30 days) and chronic (>30 days). Hip remodeling variables were determined from preoperative radiographs or intraoperatively. Descriptive statistics were performed, and the complication rates, outcome, and coxofemoral remodeling were recorded. Comparisons of remodeling variables and rates between groups were performed by using Fisher's exact test.
In total, 23 of 53 (43.4%) cases were acute, and 30 of 53 (56.6%) cases were chronic. There was no difference in the femoral remodeling rates between the acute and chronic groups (P = .184), whereas acetabular remodeling was more prevalent in the chronic group (P < .001). Intraoperative complications occurred in four of 53 (7.5% [1/23 acute, 3/30 chronic]) cases, and postoperative complications occurred in six of 53 (11.3% [2/23 acute, 4/30 chronic]) cases. Good clinical outcomes were achieved in 51 of 53 (96.2% [21 acute, 30 chronic]) cases.
Complication rates of Z-THA for CPF repair were similar to the complication rates reported for Z-THA of dysplastic hips. Hip remodeling was common regardless of CPF chronicity.
Zürich cementless total hip arthroplasty is viable for surgical management of CPF. There is a high likelihood that hip remodeling will be encountered, even in fractures treated within 30 days of presenting for hind limb lameness.
回顾行苏黎世非骨水泥全髋关节置换术（Z-THA）治疗急性和慢性干骺端骺板骨折（CPF）的犬只的治疗结果，并记录 CPF 相关的髋关节重塑情况。
回顾性研究。
53 只行 Z-THA 治疗 CPF 的犬。
回顾了 2006 年至 2019 年期间行 Z-THA 治疗 CPF 的犬只的病历记录。根据 CPF 诊断与 Z-THA 之间的时间间隔将犬只分为两组，急性组（≤30 天）和慢性组（>30 天）。从术前 X 线片或术中确定髋关节重塑变量。对并发症发生率、结果和股髋重塑进行描述性统计，并通过 Fisher 确切检验比较两组之间的重塑变量和发生率。
总共 53 例中，23 例（43.4%）为急性，30 例（56.6%）为慢性。急性组和慢性组的股骨重塑率无差异（P=0.184），而慢性组髋臼重塑更为常见（P<0.001）。53 例中有 4 例（7.5%[23 例中的 1 例，30 例中的 3 例]）术中发生并发症，6 例（11.3%[23 例中的 2 例，30 例中的 4 例]）术后发生并发症。53 例中 51 例（96.2%[23 例中的 21 例，30 例中的 30 例]）获得良好的临床效果。
CPF 修复行 Z-THA 的并发症发生率与 Z-THA 治疗发育不良髋关节的并发症发生率相似。髋关节重塑很常见，与 CPF 的慢性无关。
苏黎世非骨水泥全髋关节置换术是治疗 CPF 的可行手术方法。即使是在出现后肢跛行后 30 天内治疗的骨折，也很有可能会遇到髋关节重塑。
