摘要
[目的]比较研究正常足和外翻足横弓的形态,探讨横弓在外翻发生发展中的作用。[方法]对35名外翻患者65只足和30名正常人60只足,在负重位和非负重位足正位X线片和前足轴位X线片上分别测量外翻角(hallux valgus angle,HVA),第1、2跖骨间角(fist intermetatarsalangle,IMA),各跖骨头、籽骨到足底的距离。[结果]外翻足HVA平均30·8±8.9°,第1、2跖骨间角为16.5±2·6°;正常足HVA为10·2±2·0°,第1、2跖骨间角7·9±1·6°。外翻足与正常足比较第1跖骨头向下移位,第2、3跖骨头距足底的距离明显低于正常足。腓侧籽骨向外上方移位,胫侧籽骨向外侧移位。[结论]外翻足横弓塌陷,籽骨脱位,第2、3跖骨头过早、过重负重易产生疲劳性骨折、跖骨痛和足底胼胝体。
[ Objective ] To study the role of the transverse arch in the pathogensis of hallux valgus. [ Method ] A control group of 60 feet from 30 normal subjects and a test group of 65 feet from 35 subjects with diagnosed hallux valgus were examined. On the doral plantar view, the hallux valgus angle （ HVA）, the first intermetatarsal angle （IMA） were measured respectively. Axial （posterior-anterior view） radiographs were taken to measuring the distance from the lowest points of the first to fifth metatarsal and sesamoid bone to the bottom of the foot. [ Result ] HVA was 30.8 ± 8.9° in haUux valgus feet and 10.20 ± 2.0° in normal feet. IMA was 16.5° ±2.6° in hallux valgus feet and 7.9 ± 1.6° in normal feet. Compared with the normal feet, the heads of the second and third metatarsal bones were lower in the hallux valgus feet. The fibular sesamoid bone（FS） moved to the upper lateral, and the tibial sesamoid（TS） moved to the lateral. [ Conclusion] The transverse arch was collapsed and sesamold bones were dislocated in hallux valgus. The heads of the second and third metatarsal bones loaded excessively, and easily to fatigue fracture, metatarsalgia and painful callus.
出处
《中国矫形外科杂志》
CAS
CSCD
北大核心
2005年第24期1873-1875,共3页
Orthopedic Journal of China
关键词
拇外翻
足横弓
足籽骨
Hallux valgus
Foot transverse arch
Foot sesamoid
