Total Hip Arthroplasty in Young Patients – with special references to patients under 55 years of age and to patients with developmental dysplasia of the hip

hip arthroplasty for primary osteoarthrosis in younger patients in the Finnish Ar-throplasty Register – 4661 primary replacements followed for 0-22 years.cemented total hip arthroplasty in young patients – a mid-to long-term follow-up study from the Finnish Arthroplasty Register. Total hip arthro-plasty for rheumatoid arthritis in younger patients. 2557 replacements in the Finnish Arthroplasty Register followed for 0-24 years. Acta Orthop (In press). total hip arthroplasty in patients with high congenital hip dislocation. total hip arthroplasty in patients with severely dysplastic hips and a previous Schanz osteotomy of the femur. Submitted. 10 3. ABBREVIATIONS DDH = developmental dysplasia of the hip HA = hydroxyapatite HHS = Harris hip score JCA = juvenile chronic arthritis LFA = low-friction arthroplasty OA = osteoarthritis PE = polyethylene RA = rheumatoid arthritis RR = revision risk ratio THA = total hip arthroplasty THR = total hip replacement UHMWPE = ultra-high molecular weight polyethylene 11 4. ABSTRACT Introduction: There is an ongoing controversy as to which methods in total hip arthro-plasty (THA) could provide young patients with best long-term results. THA is an especially demanding operation in patients with severely dysplastic hips. The optimal surgical treatment for these patients also remains controversial.