足底主要韧带损伤对足底压力分布的影响  

Effect of injury to plantar ligaments on plantar pressure distribution

作　　者：杨云峰[1] 俞光荣[1] 周家钤[1] 陈雁西[1] 袁锋[1] 贾永伟[1] 牛文鑫[2] 丁祖泉[2] 

机构地区：[1]同济大学附属同济医院骨科,上海200065 [2]同济大学生命科学与技术学院生物医学工程研究所,上海200065

出　　处：《中华创伤骨科杂志》2009年第3期239-242,共4页Chinese Journal of Orthopaedic Trauma

基　　金：国家自然科学基金（30640058,30801163）

摘　　要：目的分析足底主要韧带损伤后足底压力及接触面积的变化情况。方法7例正常成人新鲜尸体足标本，解剖显露并依次切断足底跖筋膜、弹簧韧带、跖长韧带、跖短韧带，模拟足底主要韧带损伤。经电子万能试验机逐级加载至700N，利用F-scan足底压力测量系统，测量足底韧带损伤前后足底压力峰值及接触面积的变化情况，对结果进行统计分析。结果标本后足部位一直为压力峰值区，当足弓内在维持结构损伤后，前足压力增加，峰值压力位于第3跖骨头下；而足底接触总面积无明显改变。结论足底韧带损伤后，足底压力分布将发生改变，足外侧的应力集中，可能是出现临床症状的一个重要原因。Objective To explore the changes in plantar pressure distribution and contact area after injury to the plantar ligaments in a normal adult cadaveric model. Methods Seven fresh adult cadaveric feet were used in the test. F-scan insoles were put under the plantar aspect of the feet when the specimens were loaded to 700 N vertically. The plantar pressure data in the specimens were collected and stored before and after the plantar fascia, spring ligament, short plantar ligament and long plantar ligament were sectioned. Results were statistically analyzed. Results The peak pressure was always observed at the hindfoot area in all conditions. The peak plantar pressure on the forefoot was observed at the third metatarsal area and increased when the plantar ligaments were sectioned, while the total contact area of the foot was constant in both intact and pathological situations. Conclusion After the plantar ligaments are injured, the plantar pressure of the foot changes significantly and the pressure concentration occurs at the lateral foot, which may lead to clinical symptoms.

关 键 词：足损伤 韧带 足底压力 生物力学 

分 类 号：R686[医药卫生—骨科学]