概括
在修复全关节整形术中,较新的逐渐缩小,, (TFT) 股骨茎显示出低沉和改善患者的结果. 单块和模块化设计都提供了可比的稳定性和临床成功,降低了修改风险.
科学领域:
- 整形外科手术 整形外科手术
- 生物材料工程 生物材料工程
- 植入物设计 植入物设计
背景情况:
- 在修复整部关节整形术 (rTHA) 中固定大腿部部部位存在挑战.
- 早期的 (TFT) 茎有较高的沉降率;模块化设计面临着腐蚀和断裂的问题.
- 最近的TFT干代的目标是尽量减少沉降.
研究的目的:
- 评估 rTHA 中最近模块化和单块 TFT 股骨茎的临床和放射性结果.
- 为了比较模块化和单块设计之间的沉降率和存活率.
- 用哈里斯部评分 (HHS) 和WOMAC评分来评估功能改善.
主要方法:
- 追溯审查使用同一个制造商的TFT大腿茎 (单块或模块化) 的94个rTHA病例.
- 干沉降的放射分析和HHS,WOMAC和重新修订的临床评估.
- 生存率分析侧重于沉降或重新修订的终点.
主要成果:
- 九十四个部 (66个单块,28个模块) 随访了平均25.9个月.
- 平均茎沉降在两组之间是相似的 (1.9±0.2毫米模块化与2.1±0.3毫米单块化,P=.56),95%沉降<5毫米).
- 十二个部 (13%) 需要重新修改;干型之间生存率没有显著差异. 这两组都显示出显著的HHS和WOMAC得分改善 (P≤.01).
结论:
- 现代单块TFT股骨部件显示了令人鼓舞的临床结果.
- 脊柱几何学和形设计的进步将临床上显著的沉降降低到最低.
- 模块化和单块TFT茎都在rTHA中提供了可比的稳定性和功能改进.
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