Cook D A, Breed A L, Cook T, DeSmet A D, Muehle C M
Division of Orthopedics, University of Wisconsin, Madison 53792.
J Pediatr Orthop. 1992 Jan;12(1):86-9.
The classification system of Berg was evaluated using four observers and the radiographs of 42 feet from patients with metatarsus adductus. Interobserver disagreement in diagnosis was 36%. Intraobserver inconsistency averaged 26%. The error range for the lateral and anteroposterior talocalcaneal angle measurement was 13.6 and 15.1 degrees intraobserver and 19.8 and 25.2 degrees interobserver, respectively. There was no correlation between classification and the length of time required for cast correction. The irregularity of hindfoot ossification centers makes measurements inconsistent and seriously reduces the usefulness of classification based on such measurements.
使用四名观察者对伯格分类系统进行评估，并对42例患有内收足的患者的足部X光片进行分析。观察者间诊断的分歧率为36%。观察者内的不一致性平均为26%。观察者内测量内外侧和前后位距跟角的误差范围分别为13.6度和15.1度，观察者间分别为19.8度和25.2度。分类与石膏矫正所需时间长度之间没有相关性。后足骨化中心的不规则性使得测量结果不一致，并严重降低了基于此类测量的分类的实用性。
