J. Girard, P. Martinot, S. Putman, H. Migaud
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引用次数: 0
髋关节置换术治疗强直和关节融合术
髋关节强直被定义为关节活动能力的完全丧失,可以是手术性的、传染性的或自发性的。关节融合术的问题在于不可避免的上下关节(膝盖和腰椎)的长期失代偿,这经常导致假体关节融合术。关节融合术的理想位置是20至30°屈曲/5°内收/5至10°外旋,从而使相邻关节不会受到过度应力。关节融合术后,步行距离非常好,即使坐姿仍然复杂,也可以继续进行专业活动。另一方面,一些日常活动,如系鞋带或骑自行车,如果不是不可能的话,似乎非常有限。人工关节畸形手术很复杂。术前平衡是基本的,基于骨骼评估(X射线、计算机断层扫描[CT]、EOS)、肌肉(临床和磁共振成像[MRI]、神经学(肌电图[EEMG])和任何长度差异的量化(EOS系统评估髋-脊柱-骨盆关系)。为了达到感染平衡,髋关节穿刺在技术上很困难,通常使用活检。手术的效果取决于术前计划,也取决于手术史。进入途径因习惯而异(前部、后部或前侧),有时大转子截骨有助于暴露,并有利于尊重对手术成功至关重要的肌肉。无论进入何种途径,都必须完全了解一些检索(横向韧带、四边形椎板、小三角韧带、股骨颈)。应提醒患者,临床结果不如初次关节成形术好,并发症的风险很高。
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