ABSTRACT
PURPOSE: The purpose of this study was to evaluate the 9-12 year follow-up results of hybrid total hip arthroplasty using MS-30 stem. MATERIALS AND METHODS: Out of fifty patients (fifty-six hips), who underwent hybrid total hip arthroplasty using MS-30 stem from March 1991till March 1994, forty-two hips of thirty-eight patients (twenty-three men and fifteen women) were reviewed for a minimum follow-up of 9years. The average age at the time of index operation was 59.2 years. The average duration of follow-up was 10.5 years. RESULTS: The average Harris hip score was improved from 54.2 preoperatively to 93.1 postoperatively. Four hips were revised because of one infected femoral stem loosening, one acetabular cup and stem loosening, one acetabular cup loosening and one osteolysis. Weplan to revise one hip because of femoral stem loosening. One hip had possible loosening and 19 hips had radiolucent line. The Kaplan-Meier survivorship analysis with failure defined as revision of either the femoral stem or the acetabular cup revealed a 90.1% chance of survival at 10.5 years with follow-up of all patients. CONCLUSION: Nine to twelve year follow-up results of hybrid total hip arthroplasty using MS-30 stem showed good results, but relatively high loosening rate.
Subject(s)
Humans , Male , Acetabulum , Arthroplasty, Replacement, Hip , Follow-Up Studies , Hip , Osteolysis , Survival RateABSTRACT
Prader-Willi syndrome (PWS) is a complex, multisystem disorder comprising congenital hypotonia, feeding difficulties, hypogonadism and hypogenitalism, short stature, small hands and feet, mental and psychomotor retardation, distinctive facial appearance, onset of obesity in early childhood and a tendency to develop glucose intolerance in adolescence. Yet the syndrome remains difficult to diagnose due to the subtle nature of many of the manifestations. We report an 19-year old man with PWS, confirmed by fluorescence in situ hybridization (FISH) with DNA probes specific for the PWS region on chromosome 15.