Radiological Analysis of the Tapered Femoral Stem after Cementless Hip Arthroplasty: Minimum 5 years follow-up .
- Author:
Won Sik CHOY
1
;
Jae Hoon AHN
;
In Sik HWANG
Author Information
1. Department of Orthopaedic surgery, Eulji University School of Medicine, Taejon, Korea.
- Publication Type:Original Article
- Keywords:
Cementless hip arthroplasty;
Tapered titanium femoral stem
- MeSH:
Arthroplasty*;
Follow-Up Studies*;
Hip*;
Humans;
Osteolysis;
Titanium
- From:The Journal of the Korean Orthopaedic Association
2000;35(6):891-896
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: We reviewed radiological mid-term results of cementless hip replacement using Mallory-Head tapered titanium femoral stem. MATERIALS AND METHODS: Forty six patients, 50 hips were followed for more than 5 years. Mean age was 56 years, and mean follow-up period was 6.8 years. Radiologically changes in alignment, subsidence and wear rate were measured. Radiolucent line, endosteal spot weld and osteolysis were also assessed according to Gruen zones. RESULTS: All stems showed stable fixation, and radiolucent lines were observed in noncoated zones of 13 cases (26%) . Osteolysis was observed around the proximal stem in 16 cases (32%) , but it did not progress distally. CONCLUSION: With minimum follow-up of 5 years, the tapered titanium femoral stem showed good radiological results, however osteolysis needs more long-term follow-up.
