무지 외반증 환자의 hard insole 착용에 의한 중족지절관절 각도의 변화

Abstract

The purpose of this study was to investigate the effect of donning of a hard insole in patientswith hallux valgus. Fourteen subjects were selected from patients with foot pain at Lee Chang-HeonFoot Clinic from August 4, 2000 to September 15, 2000. The hallux valgus angle and the first-second intermetatarsal angle were radiographically measuredbefore and after donning the hard insole. Based on these two kinds of angles, a mild halluxvalgus deformity group was characterized by the hallux valgus angle of less than 20 degrees,and a moderate hallux valgus deformity group was characterized by the hallux valgus angle of20 to 40 degrees. After three weeks with the hard insole donned, the foot angles of the patientswith hallux valgus were measured again. The data were analyzed by Wilcoxon signed ranks test, andthe following results were obtained: 1) After the trial, both mild hallux valgus deformity groupand moderate hallux valgus deformity group demonstrated that the hallux valgus angles weresignificantly decreased. 2) After the trial, mild hallux valgus deformity group demonstratedthat the first-second intermetatarsal angle was significantly decreased. 3) After the trial,moderate hallux valgus deformity group demonstrated that the first-second intermetatarsalangle was not significantly decreased. The above findings revealed that according to donninghard insole, the hallux valgus angles of mild and moderate hallux valgus deformity groups andthe first-second intermetatarsal angle of mild hallux valgus deformity group were significantlydecreased. The results of this study have some limitation for generalization due to the limitednumber of subjects. Further studies are needed to evaluate the effect of hard insole on hallux valgus with moreprecise laboratory equipments and measurements in patients with hallux valgus.