Abstract

Objective The aim of this study was to document application of locking plates for stabilization of acetabular fractures along with complications and clinical outcomes. We hypothesized that complications and clinical outcomes would be comparable to historical reports using non-locking plate and screw constructs.

Study Design Medical records of dogs presented with acetabular fractures at a single referral centre between 2010 and 2018 were reviewed. Cases surgically managed by open reduction and internal fixation, involving placement of at least one locking plate and screws, were included. Signalment, fracture classification, type of implant used, additional methods of stabilization, along with complications and neurological deficits, were collected. Long-term follow-up was based on Liverpool Osteoarthritis in Dogs questionnaire.

Results Eighteen acetabula were repaired in 17 dogs. Locking implants were VetLOX (4/18), string-of-pearls (7/18) and locking compression plates (7/18). Locking plates and screws were used as the sole method of fixation in 10/18 acetabula, and as adjunctive fixation with other implants in 8/18 acetabula. Two minor complications and one catastrophic complication were reported. Sixteen of seventeen dogs returned to function with radiographic documentation of fracture healing. Complication rate was comparable to historic reports using non-locking implants. Long-term outcomes assessed by Liverpool Osteoarthritis in Dogs questionnaire were positive in most cases.

Conclusion Locking plates are a viable means of stabilizing acetabular fractures in dogs and can provide positive clinical outcomes. Surprisingly, problems including inaccurate fracture reduction and implant loosening were not fully avoided by use of locking implants but incidence was low.

Authors' Contributions

Francesco Piana wrote the manuscript, collected the data and did the literature review. Miguel Solano, Stephen Kalff and Russell Yeadon provided reviews and alterations to the initial manuscript.

中文翻译：

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犬髋臼骨折的锁定板固定。

摘要

目的 本研究的目的是记录锁定板在稳定髋臼骨折以及并发症和临床结果方面的应用。我们假设并发症和临床结果与使用非锁定钢板和螺钉构造的历史报道相当。

研究设计 回顾了2010年至2018年间在单个转诊中心出现髋臼骨折的狗的医疗记录。包括通过切开复位内固定手术治疗的病例，包括放置至少一个锁定板和螺钉。收集信号，骨折分类，所用植入物的类型，其他稳定方法以及并发症和神经功能缺损。长期随访基于“利物浦狗骨关节炎”问卷。

结果 17只狗修复了18例髋臼。锁定植入物是VetLOX（4/18），珍珠线（7/18）和锁定加压板（7/18）。锁定板和螺钉被用作固定在10/18髋臼中的唯一方法，并用作与其他植入物在8/18髋臼中的辅助固定。据报道有2例轻微并发症和1例灾难性并发症。放射照相的骨折愈合记录表明，十七只狗中有十六只恢复了功能。并发症发生率与使用非锁定植入物的历史报道相当。在大多数情况下，利物浦骨关节炎在狗问卷中评估的长期结局是阳性的。

结论 锁定板是稳定犬髋臼骨折的可行方法，可提供积极的临床效果。出人意料的是，使用锁定种植体并不能完全避免骨折​​复位不准确和种植体松动等问题，但发生率很低。

作者的贡献

弗朗切斯科·皮亚纳（Francesco Piana）撰写了手稿，收集了数据并进行了文献综述。Miguel Solano，Stephen Kalff和Russell Yeadon对原始手稿进行了评论和修改。