BACKGROUND: Long-term results of a @entity692 (HA)-coated stem are sparse. We have followed a cohort of @entity1 operated with a grit-blasted @entity702 stem designed for press-fit insertion and entirely plasma-sprayed with HA up to 28 years. METHODS: In the years 1988-1993, we performed 323 primary total hip arthroplasties in 276 @entity1 (189 @entity1 ). Their mean age was 48 (15-79) years. During the following years, 83 @entity1 with 88 hips have died, and 18 @entity1 did not attend the follow-up examination, but had no major symptoms according to telephone interviews and control examination. Thus, 212 @entity1 (255 hips) were followed up for more than 20 years. RESULTS: Three @entity1 were revised because of late @entity281 , 1 because of a fall with @entity3564 , and 2 stems were revised due to mechanical failure. Osteolysis was significantly associated with wear, and wear was significantly associated with the size of the femoral head. We found a small amount of proximal @entity604 and a low incidence of distal hypertrophy of the bone. The bone changes confirmed a well-fixed femoral component in asymptomatic @entity1 . CONCLUSION: Our findings indicate an essentially physiological weight distribution from the stem to the femoral bone with no significant thigh @entity158 . The changes in the bone confirmed that the femoral component was well-fixed, and we conclude that a fully HA-coated @entity702 stem designed for press-fit insertion lasts for 23-28 years.

Total Hip Arthroplasty With a Fully XXXX -Coated Stem: A Cohort Study During 23-28 Years.

@entity1 :: ('9606', 'Species') :: ['women', 'patients'] @entity604 :: ('MESH:D016301', 'Disease') :: ['bone loss'] @entity692 :: ('MESH:D017886', 'Chemical') :: ['hydroxyapatite'] @entity281 :: ('MESH:D007239', 'Disease') :: ['periprosthetic infection'] @entity158 :: ('MESH:D010146', 'Disease') :: ['pain'] @entity702 :: ('MESH:D014025', 'Chemical') :: ['titanium'] @entity3564 :: ('MESH:D057068', 'Disease') :: ['periprosthetic fracture']
@entity692 :: (MESH:D017886,Chemical) :: ['Hydroxyapatite']
