The influence of technique on fixation of primary total hip arthroplasty in patients with rheumatoid arthritis.

Journal Article (Journal Article)

This is a prospective, consecutive study of 98 total hip arthroplasties implanted by 1 surgeon in 66 patients with rheumatoid arthritis. The mean follow-up time was 7.4 years (range, 2-13 years). All 98 acetabular components were uncemented titanium fiber metal-coated components fixed with multiple screws. Sixty-five hips had bulk or cancellous allograft for protrusio acetabuli. Following a prospective protocol based on patient age, 51 hips had an uncemented femoral component, and 47 hips had a cemented femoral component. Using the Harris Hip Score, 30 hips were rated as excellent; 44, good; 15, fair; and 9, poor. There were no early deep infections. One hybrid hip was removed for late metastatic infection at 7 years. Radiographic evaluation of 98 acetabular components showed 1 case of septic loosening, 2 cases of aseptic loosening (1 patient asymptomatic), and 1 case with severe wear and ischial osteolysis. None of the 47 cemented femoral components subsided, and osteolysis was seen in only 3 femora (7%). Of the 51 uncemented femoral components, subsidence occurred in 7 hips (14%), and osteolysis occurred in 15 hips (30%). Uncemented acetabular components have a high rate of success in patients with rheumatoid arthritis who have a total hip arthroplasty. There is a high rate of subsidence and osteolysis, however, with first-generation cementless femoral components.

Full Text

Duke Authors

Cited Authors

  • Thomason, HC; Lachiewicz, PF

Published Date

  • August 2001

Published In

Volume / Issue

  • 16 / 5

Start / End Page

  • 628 - 634

PubMed ID

  • 11503123

International Standard Serial Number (ISSN)

  • 0883-5403

Digital Object Identifier (DOI)

  • 10.1054/arth.2001.23720

Language

  • eng

Conference Location

  • United States