A Study of the Early Results of Cementless Total Hip Replacement

We reviewed the early results of 23 cementless total hip replacement both clinically and radiologically.Clinically the average JOA score was 50.2 before surgery and improved to 81.6 after surgery. Especially pain score and walking ability score improved well.On follow-up X-ray examination radiopaque line around the stem was frequently seen in zone 1 (13 hips) and zone 4 (8 hips). On the acetabular side radiopaque line appeared in only 4 hips with bone transplantation.These results suggest that the cup is sufficiently anchored to the acetabulum but there are some mechanical problems in the stem of this cementless system.