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在活体膝关节运动期间,中间骨关节的长度变化:使用动态计算机断层扫描的评估
Miriam R Boot1, Sebastiaan A W van de Groes2, Hans Dunning1
1Orthopaedic Research Laboratory, Radboud University Medical Center, Nijmegen, the Netherlands.
The American journal of sports medicine
|November 14, 2023
概括
在膝盖曲过程中,中侧骨关节带 (MPFL) 长度的变化因插入点而异. 远距离带插入可以导致MPFL延长,可能增加重建手术中的并发症风险.
科学领域:
- 整形外科手术 整形外科手术
- 生物力学 生物力学
- 人体解剖学 解剖学 解剖学
背景情况:
- 中侧骨带 (MPFL) 重建的并发症率很高,原因是由于错误定位造成的移植过载.
- 了解MPFL延长模式对于改善MPFL重建的临床结果至关重要.
研究的目的:
- 为了评估MPFL的长度变化在动态膝盖 flexion (0°90°) 在健康的膝盖.
- 为了研究MPFL长度变化和骨骨关节解剖参数之间的关系.
主要方法:
- 用115个健康膝盖的动态CT扫描来创建膝关节模型.
- 测量MPFL的长度从施托特尔点到近端,中心和远端的骨插入.
- MPFL长度变化与小腿结节 - 胸腔沟距离,卡顿-德尚普指数和侧面胸腔沟倾斜度相关.
主要成果:
- 根据插入,MPFL的长度变化有所不同:近端纤维松,中心纤维是等比的,远端纤维在更深的曲时收紧.
- 在0°到90°的屈曲之间,总长度的中位变化为4.6mm (近位),4.7mm (中心) 和5.7mm (远位).
- 长度变化与健康范围内的解剖学参数的相关性较弱.
结论:
- 中部骨骨关节 (MPFL) 呈现出明显的长度变化,基于膝盖曲期间的骨插入点.
- 远距离皮带插入与MPFL延长有关,可能会增加移植过载和重建并发症的风险.
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