Polyethylene Liner Wear in Harris-Galante Acetabular Cup: Two Dimensional versus Three Dimensional Method.
- Author:
Sang Won PARK
1
;
Woong Kyo CHUNG
;
Seung Bum HAN
Author Information
1. Department of Orthopedic Surgery, Korea University, Seoul, Korea.
- Publication Type:Original Article
- Keywords:
Total hip replacement arthroplasty;
Measurement of polyethylene liner wear;
Two dimensional method;
Three dimensional method
- MeSH:
Acetabulum*;
Hip;
Polyethylene*
- From:The Journal of the Korean Orthopaedic Association
2001;36(4):373-376
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: The purpose of this study was to compare the two-dimensional with three-dimensional radiographic measurements of polyethylene liner wear in the Harris-Galante II acetabular cup. MATERIALS AND METHODS: We measured the polyethylene liner wear amount and the wear rate of 64 hips with Harris-Galante II acetabular cup by two methods: Livermore's method and modified Devane's method. We evaluated the relationships between the two methods. RESULTS: The average total amount of wear and the average wear rate are 0.86+/-1.01 mm and 0.18+/-0.20 mm/year using the two-dimensional method and 0.99+/-1.01 mm and 0.21+/-0.2 mm/year using three-dimensional method respectively. The amount of wear and the wear rate by the three-dimensional method was larger than those by the two dimensional method. CONCLUSION: The amount of polyethylene liner wear can be measured by the two-dimensional method because it is highly correlated with the amount that is measured by the three-dimensional method, since there was no differences between the two methods.
