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目的 :探讨采用Ilizarov技术结合有限手术治疗伴有负重区溃疡的神经营养不良性马蹄内翻足畸形的手术方法及临床疗效。方法:2004年7月至2011年12月收治21例伴有负重区溃疡的神经障碍性马蹄内翻足畸形患者,其中男14例,女7例;年龄8~32岁,平均21.3岁;脊柱裂致马蹄内翻足畸形19例,腰骶段脊髓损伤致马蹄内翻足畸形2例;左侧9例,右侧12例;第5跖骨头外下区溃疡6例,第5跖骨基底部溃疡5例,跟骰关节外侧溃疡2例,距下关节外侧溃疡8例。采用跖内侧松解,跟腱延长,三关节有限截骨,其中皮肤溃疡位于距下关节外侧者,术中同时切除溃疡皮肤及软组织,Ⅰ期缝合皮肤切口,术中部分矫正马蹄内翻足畸形后穿针安装Ilizarov足踝部外固定牵伸器。术后负重区仍遗留皮肤溃疡者,溃疡局部使用中成药生肌膏进行换药,每日1次,直至创面愈合。术后7 d开始调节Ilizarov牵伸器矫正残余马蹄内翻足畸形,直至马蹄内翻畸形矫正满意为止,在牵伸矫形过程中患足部分负重行走。结果:21例均获随访,时间6~52个月,平均28个月。所有溃疡愈合,溃疡愈合时间术后14~36 d,平均26 d,随访时溃疡均无复发;18足畸形矫正满意,完全恢复跖行足,3足于术后1年复查出现畸形轻度复发;15例踝关节活动度不同程度受限,6例踝关节完全僵直。AOFAS综合评分由术前34.0±7.2提高到术后86.0±8.5;优8足,良10足,中3足。结论:采用Ilizarov技术结合有限矫形手术治疗伴有负重区神经营养障碍性溃疡的马蹄内翻足畸形,辅助外用中药生肌膏治疗,可以达到Ⅰ期畸形矫形及治愈溃疡的满意效果,手术方法简单,医疗过程安全,能规避严重并发症的发生。 相似文献
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BackgroundFracture correction is an important orthopedic operation, which can be performed using a unilateral external fixator. Regulating the rotational and translational joints of the fixator is usually necessary to correct complex deformities. However, pin deviations inevitably occur during surgery, and the fixator has its own limitations. Therefore, the relationship between fixator joint adjustment and pin deviations must be identified and discussed.MethodsThe influence of pin deviation on the fixator joint adjustment was analyzed using the inverse kinematics method based on a 6-DOF unilateral external fixator. The effect of multiple pin deviations on fixator joint was also discussed.FindingsThis study reveals that the single pin deviations in different axes affect different fixator joints. When multiple deviations occur simultaneously, the regulated quantity is equal to the sum of that of each deviation.InterpretationReasonable pin placement can reduce the joint adjustment values and prevent reaching limit values of fixator joint, which aids in expanding the application scope of the fixator. This research can also help reduce the duration of orthopedic surgeries, if the relationship between pin deviation and joint adjustment is known in advance. 相似文献
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