Objective The aim of this study was to quantify the complications using the Zurich total hip replacement system in an initial series of cases performed by a single surgeon who had experience with other total hip replacement systems.

Materials and Methods This was a retrospective study in which complications were classified as major if any treatment was needed or if the outcome was less than near-normal function. Complications that did not warrant treatment and that did not result in function that was inferior to near-normal were considered minor. Outcomes were assessed by radiographic review, physical examination, subjective gait evaluation or, in one case, by objective gait analysis. Bilateral total hip replacements were considered separate procedures.

Results The first 21 procedures in 19 dogs performed by a single surgeon were included. The mean time to follow-up was 48 weeks (range: 8–120 weeks; standard deviation: 36 weeks). Two cases (of 21) experienced major complications including one dog with excess internal femoral rotation during weight bearing and one dog having luxation. One case (of 21) had a minor complication; femoral fracture in the presence of an intact bone plate that maintained alignment and healed without treatment.

Clinical Significance A high rate of successful outcomes with few major complications can be obtained in the initial cases treated using the Zurich total hip replacement system for surgeons with prior experience with other total hip replacement systems.

目的 本研究的目的是量化使用苏黎世全髋关节置换系统的并发症在由具有其他全髋关节置换系统经验的单一外科医生执行的初始系列病例中。

材料和方法 这是一项回顾性研究，如果需要任何治疗或结果低于接近正常的功能，则并发症被归类为主要并发症。不需要治疗和不会导致功能低于接近正常的并发症被认为是轻微的。结果通过放射学检查、体格检查、主观步态评估或在一种情况下通过客观步态分析进行评估。双侧全髋关节置换术被认为是单独的手术。

结果 包括由一名外科医生在 19 只狗中进行的前 21 次手术。平均随访时间为 48 周（范围：8-120 周；标准差：36 周）。两例（共 21 例）出现严重并发症，包括一只狗在负重期间股骨内旋过度，一只狗脱位。1 例（共 21 例）有轻微并发症；存在完整骨板的股骨骨折，骨板保持对齐并无需治疗即可愈合。

临床意义 对于具有其他全髋关节置换系统先前经验的外科医生，在使用苏黎世全髋关节置换系统治疗的初始病例中，可以获得高成功率且几乎没有重大并发症。