Clinical Study on Cementless Total Hip Replacement Arthroplasty

Component loosening is the main important problem in cemented total hip replacement arthroplasty(THRA). And cementless THRA is recommended in recent years to provide the biological fixation of the components. During past 3 years from July 1982 to June 1985, 23 cases of cementless THRA were carried out at Dept. of Orthopedic Surgery, Ewha Womans University hospital and following results were obtained. 1) There was no difference in sex distribution. Age distribution was variable from 22 years old to 78(average 57.2), and 20 cases(87%) was above 40 years old. 2) The primary diseases were 8 cases of avascular necrosis of the femoral head; 8 of femoral neck fracture; 4 of osteoarthritis: 2 of old tuberculosis and 1 of fused hip due to healed tuberculosis. 3) Types of implants were 9 cases of Harris/Galante, 6 of A.M.L. type, 5 of Ceramic Prosthesis and 3 of P.M. type. 4) Intraoperative complication was 1 case of femoral shaft penetration. Postoperative complications were 2 cases of superficial infection and 2 cases of dislocations. 5) The functional results were increased from 45 to 85.5 points by Harris scores and from 5.9 to 9.8 points by D'Aubigne scores.