Shapiro F
Acta Orthop Scand. 1982 Jun;53(3):437-44. doi: 10.3109/17453678208992238.
Lower extremity length discrepancies and skeletal maturation have been studied in 147 patients with unilateral Legg-Calvé-Perthes disease followed by orthoroentgenograms for 5 or more years. At the time of initial assessment there was a marked delay in skeletal age as related to chronologic age in 83 percent of the patients. Standing height in the majority of patients both at disease presentation and at skeletal maturation was less than the mean. The average maximum total femoral and tibial discrepancy during the course of the disease was 2.14 cm. The maximum femoral discrepancy averaged 1.38 cm and the maximum tibial discrepancy averaged 0.93 cm. (The time of maximum discrepancy differed in the two major lower extremity bones). The extent of tibial discrepancy correlated well with the time of immobilization in the unilateral abduction ischial weight-bearing brace. The discrepancies did not invariably increase with time and many corrected with the repair process. Four developmental patterns of the discrepancy were detected and classified. Epiphyseal arrest was resorted to in 21 percent of the patients.
对147例单侧Legg-Calvé-Perthes病患者进行了下肢长度差异和骨骼成熟度的研究，这些患者接受了5年或更长时间的X线检查。在初次评估时，83%的患者骨骼年龄相对于实际年龄有明显延迟。大多数患者在疾病表现期和骨骼成熟时的站立身高均低于平均值。疾病过程中股骨和胫骨的平均最大总差异为2.14厘米。股骨最大差异平均为1.38厘米，胫骨最大差异平均为0.93厘米。（两个主要下肢骨骼出现最大差异的时间不同）。胫骨差异程度与单侧外展坐骨负重支具固定时间密切相关。差异并非总是随时间增加，许多差异会随着修复过程而纠正。检测并分类了差异的四种发育模式。21%的患者采用了骨骺阻滞术。
