升高的中间距离切除减少了骨密度在瓦尔古斯全膝关节关节整形全膝关节整形
Yugo Morita1, Shinichi Kuriyama1, Yuki Shinya1
1Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
概括
膝关节置换术后的缺陷骨折很少发生,但严重. 瓦尔古斯膝关节对齐可以导致中间股骨的骨密度降低,增加手术期间骨折的风险. 谨慎的切除深度是关键.
科学领域:
- 整形外科手术 整形外科手术
- 生物医学工程 生物医学工程
- 放射学 放射学是一门学科.
背景情况:
- 在全膝关节整形术 (TKA) 后的缺陷周围假肢骨折是不常见但严重的并发症.
- 在TKAs中的位对齐可能导致中侧大腿的慢性卸载,可能会降低局部骨矿物质密度 (BMD) 并增加骨折风险.
研究的目的:
- 为了比较骨矿物质密度 (BMD) 在远距离的股骨之间 valgus 和 varus 膝盖接受初级全膝关节整形手术.
- 为了研究距离大腿切除深度对瓦尔古斯膝关节局部骨质的影响.
主要方法:
- 追溯研究40个valgus膝盖和40个倾向得分匹配的varus膝盖进行了初级TKA.
- 定量计算断层扫描 (QCT) 用于测量远切除平面的BMD.
- 模拟距离大腿切除在不同深度 (水平,2mm更深,4mm更深) 在膝盖进行.
主要成果:
- 瓦尔古斯膝盖在中间大腿中显示较低的BMD,特别是在中间,与瓦鲁斯膝盖相比.
- 较大的关节对齐与减少的中央BMD相关.
- 较深的模拟切除水平在valgus膝盖导致逐渐较低的BMD.
- 在所有测量区域中,中部切除深度与较低的BMD有关.
结论:
- 瓦尔古斯膝关节的中间远端股骨是相对骨折的.
- 较深的远端股骨切除 valgus 膝盖优先参与较低密度的骨,增加骨折风险.
- 在瓦尔古斯正过程中,仔细控制中间远端股骨切除深度对于减轻早期缺陷骨折的风险至关重要.
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