Socket migration after Charnley arthroplasty in rheumatoid arthritis and osteoarthritis. A roentgen stereophotogrammetric study
Research output: Contribution to journal › Article
Socket migration and rotation in the Charnley total hip replacement were evaluated by roentgen stereophotogrammetric analysis in 23 patients with rheumatoid arthritis and 23 patients with osteoarthritis. The two groups were matched with regard to age and sex. The follow-up time was two years. In the rheumatoid patients socket migration was most prominent in the proximal direction and averaged 0.6 mm at 24 months as compared with 0.1 mm in the osteoarthritic group (p = 0.0003). Within the rheumatoid group a preoperative acetabular protrusion in five patients was associated with increased migration and rotation in all directions. The increased proximal migration in rheumatoid arthritis was consistent (p = 0.0009) even after the exclusion of the five protrusion cases. In the rheumatoid patients there was a correlation between low body-weight and proximal migration, but there was no such correlation in the osteoarthritic group. Our results suggest that socket fixation is less secure in patients with advanced inflammatory arthritis.
|Research areas and keywords||
Subject classification (UKÄ) – MANDATORY
|Journal||Journal of Bone and Joint Surgery: British Volume|
|Publication status||Published - 1993|
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Reconstructive Surgery (013240300), Medical Radiology Unit (013241410)