Read Complete Study Here :http://www.jbjs.org.uk/cgi/content/abstract/82-B/1/97
C. L. E. Gerritsma-Bleeker, MD, Orthopaedic Registrar; R. Deutman, MD, PhD, Orthopaedic Surgeon; Th. J. Mulder, MD, PhD, Orthopaedic Surgeon; and J. D. J. Steinberg, MD, Radiologist Department of Orthopaedic Surgery, Martini Hospital, PO Box 30.033, 9700 RM Groningen, The Netherlands.
From a series of 135 patients (146 prostheses) who had had primary hip replacement in 1975 and 1976 we reported the outcome at ten years in 83 surviving patients in 1988 and that at 15 years in 44 surviving patients in 1994. Now, 22 years after the operation, we have reviewed the 21 patients who are still alive. Nineteen (20 hips) of these 21 patients (22 hips) with a mean age of 85.7 years still had their original prosthesis. Most patients were satisfied with the result, although the level of activity in many was reduced because of increasing age and other medical problems……. At the 22-year follow-up the cumulative survival rate of the prosthesis was 85%, of the stem 91% and of the cup 88%. Since 1975, 11 (7.5%) of the original 146 prostheses have been revised.