阴囊关节缺陷增加了对后部中介阴囊根部的力
Heath P Melugin1,2, Justin R Brown1, Justin F M Hollenbeck1
1Steadman Philippon Research Institute, Vail, Colorado, USA.
The American journal of sports medicine
|September 8, 2023
概括
阴囊带 (MTL) 缺陷会增加后部中间阴囊根 (PMMR) 上的压力. 手术修复没有恢复PMMR力量,表明可能需要联合修复.
科学领域:
- 骨科生物力学 骨科生物力学
- 膝关节机械师 在膝关节机械师
- 运动医学研究 运动医学研究
背景情况:
- 后部中间半径根 (PMMR) 撕裂带来了诊断和治疗方面的挑战.
- 阴道带 (MTL) 损伤通常会先于PMMR撕裂,这表明MTL不足会改变PMMR的力量.
研究的目的:
- 在完整的,MTL切割的和MTL-tenodesis状态下量化PMMR上的3D力.
- 为了测试MTL切割增加PMMR中介切削力,而ténodesis恢复这些力这一假设.
主要方法:
- 使用十个新鲜冷的尸体膝盖进行受控实验室研究.
- 在轴负,内部和外部扭矩下,在完整,MTL切割和度状态下进行测试.
- 使用3轴负载电池测量PMMR压缩-张力,中侧和前后侧切削力.
主要成果:
- MTL切割显著增加了轴承负载下的PMMR压缩 (P=.0368) 和外部扭矩 (P<.0001).
- 在外部扭矩下,MTL切割降低了前面切削 (P=.0003).
- 化剂并没有显著地将PMMR力恢复到完整水平 (P=.008,P<.0001).
- 膝盖曲的增加显著增加了压缩下PMMR的中间剪力 (P<.007).
结论:
- 在生物力学上,MTL不足会增加PMMR的压力.
- 一个单的MTL集中程序并没有恢复PMMR力量的完整水平.
- 膝盖曲的增加加剧了PMMR的中间切削力.
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