PROXIMAL FEMORAL FOCAL DEFICIENCY, LYSIS, COXA VARA AND RETROTORSION,ARTHROGRAPHY, EARLY CONSOLIDATION IN PLASTER CAST, EARLY VALGUS AND ROTATIONAL OSTEOTOMY

In three children with proximal femoral focal deficiency arthrography of the hip joint was performed at age 9 days, 4 and 5 weeks. Between t he unossified part of the femoral neck and the cartilaginous fe moral head there was a moderate flexibility in the first child and a lysis w ith some displacement of the femoral neck in the other two. After immo bilisation in a squatting cast for 3 months consolidation was achieved and the growth plate developed normally. Coxa vara and retrotorsion w as marked in all children. The earlier they were treated by valgus ost eotomy and rotation to normal anteversion, the earlier normal growth s tarted. Therefore early diagnosis, conservative and operative treatmen t is indicated in these children. Femoral lengthening is necessary the n for only a few centimeters. Resection of the unossified part of the femoral neck is not indicated.