踝关节韧带损伤及修复对关节面受力面积及应力的影响

发布时间：2018-10-11 10:05

【摘要】：目的探讨踝关节韧带损伤及修复对关节面受力面积及应力的影响。方法将正常踝关节标本100个随机分为五组,每组10个。A组保留原本的踝关节韧带;B组切断下胫腓联合前韧带;C组切断踝关节内、外侧韧带和下胫腓联合前韧带;D组在C组处理基础上,用螺丝固定下胫腓联合损伤韧带,采用缝合铆钉修复三角韧带;E组在C组处理基础上,仅用螺丝固定下胫腓联合损伤韧带。采用QX-W400生物力学试验机检测各组在背伸10°、内翻20°、外翻10°、跖屈20°及中立位时关节面受力面积及应力。结果背伸10°、内翻20°、外翻10°、跖屈20°及中立位时关节面受力面积由大到小依次为A、D、E、B、C组,关节面应力由小到大依次为A、D、E、B、C组,组间比较P均0.05。结论踝关节韧带损伤时关节面受力面积减少、关节面应力增加,且损伤越严重上述变化越明显;及时修复受损伤韧带包括三角韧带,可减少应力面积,改善其生物力学环境。
[Abstract]:Objective to investigate the effect of ankle ligament injury and repair on the area and stress of articular surface. Methods 100 normal ankle specimens were randomly divided into five groups, 10 in each group. Group A preserved the original ankle ligament, group B cut the anterior tibiofibular ligament, group C cut the ankle joint. The lateral ligament and anterior tibiofibular ligament were fixed with screws on the basis of group C, and the triangular ligament was repaired with rivets. The ligaments of the inferior tibiofibular syndesmosis were fixed with screws only. QX-W400 biomechanical testing machine was used to detect the area and stress of articular surface at 10 掳dorsiflexion, 20 掳varus, 10 掳valgus, 20 掳plantar flexion and neutral position. Results the stress area of the articular surface in group A (10 掳), varus (20 掳), valgus (10 掳), flexion of the metatarsal (20 掳) and neutral position was in turn from large to small in group C, and the stress of the articular surface was in turn group C (P < 0.05). Conclusion the stress area of the articular surface decreases and the stress of the articular surface increases during the ankle ligament injury, and the more serious the injury, the more obvious the above changes are, and the timely repair of the injured ligament, including the triangular ligament, can reduce the stress area and improve the biomechanical environment of the injured ligament.
【作者单位】：大连市第二人民医院;
【分类号】：R687.4

【相似文献】