Valgus extension osteotomy for hinge abduction in Perthes diseaseRESULTS AT MATURITY AND FACTORS INFLUENCING THE RADIOLOGICAL OUTCOMEM. J. K. Bankes, FRCS Orth, Specialist Orthopaedic Registrar; A. Catterall, MChir, FRCS, Consultant Orthopaedic Surgeon; and A. Hashemi-Nejad, FRCS Orth, Consultant Orthopaedic SurgeonRoyal National Orthopaedic Hospital NHS Trust, Brockley Hill, Stanmore, Middlesex HA7 4LP, UK. Correspondence should be sent to Mr M. J. K. Bankes at 18 Howard Walk, London N2 0HB, UK. Valgus extension osteotomy (VGEO) is a salvage procedure for hinge abduction in Perthes disease. The indications for its use are pain and fixed deformity. Our study shows the clinical results at maturity of VGEO carried out in 48 children (51 hips) and the factors which influence subsequent remodelling of the hip. After a mean follow-up of ten years, total hip replacement has been carried out in four patients and arthrodesis in one. The average Iowa Hip Score in the remainder was 86 (54 to 100). Favourable remodelling of the femoral head was seen in 12 hips. This was associated with three factors at surgery; younger age (p = 0.009), the phase of reossification (p = 0.05) and an open triradiate cartilage (p = 0.0007). Our study has shown that, in the short term, VGEO relieves pain and corrects deformity; as growth proceeds it may produce useful remodelling in this worst affected subgroup of children with Perthes disease. This article has been cited by other articles:
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