慢性外踝不稳与距骨斜角关系探讨

The Relationship between the Chronic Instability of the Lateral Ankle And the Talar Tilt Angle

探讨距骨斜角与慢性外踝不稳的关系 ,拟提供一种慢性外踝不稳的定量诊断方法。方法随机选择慢性外踝不稳青年患者 62人 ,共 64例外踝不稳踝关节 (男 3 7人 3 9例 ,女 2 5人 2 5例 )与外踝无损伤者 2 2 4人共 44 5例踝关节 (男 118人 2 3 5例 ,女 10 6人 2 10例 ) ,用“踝关节加压内翻拍片架”进行踝跖屈内翻固定 ,拍摄踝关节跖屈内翻应力正位片。结果患者组距骨斜角平均9.3° ,对照组距骨斜角平均 4.2° ,P <0 .0 0 1。结论陈旧性外踝韧带损伤患者如踝内翻应力片显示距骨斜角 >9° ,则可考虑慢性外踝不稳 ;患踝距骨斜角≤ 9°但比健侧大 2°或以上 ,也应考虑慢性外踝不稳的可能性。

Objective This article is to clarify the relationship between talar tilt angle and the chronic instability of the lateral ankle , so as to offer a method of quantitative diagnosis about the chronic instability of the lateral ankle. Methods 64 chronic instability of the lateral ankle in 62 young adult (male 39, female 25) and 445 normal ankle in 224 young adult who were not injured (male 235, female 210) were selected randomly. All these ankles were inverted and fixed, and taken inversion stress anteroposterior roentgenograms with 'the frame of inversion stress of the ankle'. Results The average talar tilt angle in the suffered group is 9.3°, and the angle in the controled group is 4.2°, P<0.001. Conclusion When the talar tilt angle of the inversion stress film in a patient suffering from old injury of the lateral ligaments of the ankle >9°, the chronic instability of the lateral ankle would be considered; The talar tilt angle of injuried adult ≤9°and if the ankle is more 2°than the uninjured side , the chronic instability is possible.