Background

The use of dual mobility cups (DMC) has been shown to reduce hip instability after revision surgery. For severe acetabular bone loss, reconstruction with a Kerboull cross-plate and bone allograft would contribute to restoring native hip position and bone stock. Only two papers reported on the combination of Kerboull cross-plate with bone allograft and cemented DMC in revision total hip arthroplasty (THA).

Methods

This is a monocentric retrospective study (28 cases) of first-time revision THA using such a construct in American Association of Orthopaedic Surgeons (AAOS) grade III and IV acetabular bone defect. Detailed demographic, clinical and radiographic results were recorded and evaluated.

Results

With a mean follow-up of six ± 3.63 years, no case of instability was reported. The modified Harris Hip Score (mHHS) was 88.4 ± 10.1. No hook fracture or mechanical failure was observed. Non-progressive radiolucent lines were recorded. Osteointegration of the allografts was observed in all cases with a mean Grodet score of 7.9 ± 0.97.

Conclusions

In first revision THA, the use of a Kerboull cross-plate with allograft and a cemented DMC in AAOS grade III and IV acetabular bone defects demonstrated excellent clinical and radiological outcomes with no recorded cases of dislocation or mechanical failure.

中文翻译：

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主要髋臼缺损：第一次翻修全髋关节置换术的结果，使用 Kerboull 交叉钢板和同种异体移植物和骨水泥双活动杯，最长随访 14 年

背景

使用双活动杯 (DMC) 已被证明可以减少翻修手术后的髋关节不稳定性。对于严重的髋臼骨丢失，使用 Kerboull 交叉骨板和同种异体骨进行重建将有助于恢复自然髋关节位置和骨量。只有两篇论文报道了 Kerboull 交叉钢板与同种异体骨和骨水泥 DMC 在翻修全髋关节置换术 (THA) 中的组合。

方法

这是一项单中心回顾性研究（28 例），在美国骨科医师协会 (AAOS) III 级和 IV 级髋臼骨缺损中使用这种结构进行了首次翻修 THA。详细的人口统计、临床和影像学结果被记录和评估。

结果

平均随访时间为 6 ± 3.63 年，没有报告不稳定病例。修正后的 Harris 髋关节评分 (mHHS) 为 88.4 ± 10.1。没有观察到钩子断裂或机械故障。记录了非进行性的射线可透线。在所有病例中均观察到同种异体移植物的骨整合，平均 Grodet 评分为 7.9 ± 0.97。

结论

在第一次修订的 THA 中，在 AAOS III 级和 IV 级髋臼骨缺损中使用带有同种异体移植物和骨水泥 DMC 的 Kerboull 交叉板显示出出色的临床和放射学结果，没有记录到脱位或机械故障的病例。