Assessment of Polyethylene Wear in Total Hip Replacement
- 1 December 1999
- journal article
- research article
- Published by Ovid Technologies (Wolters Kluwer Health)
- Vol. 369 (369), 59-72
- https://doi.org/10.1097/00003086-199912000-00007
Abstract
The three-dimensional technique is a method for the measurement of polyethylene wear in patients with total hip joint replacement. Application of image processing technology allows automation of point selection from digital images of radiographs scanned into the computer. Validation of image processing modifications reveals a three-fold increase in accuracy and a 40-fold increase in reproducibility compared with manual input of points from a digitizer during bench testing. A review of three-dimensional technique application to clinical patients gives information on the factors that influence polyethylene wear. Increasing age, activity level, femoral head size, decreasing polyethylene thickness, and insertion of total hip prostheses without cement all increase polyethylene wear. Restoration of femoral offset during total hip replacement seems to decreases polyethylene wear. No apparent difference in polyethylene wear rate could be found between two groups of patients, one group had a stainless steel-polyethylene articulation and the other had a ceramic-polyethylene articulation. Measurement of the serial polyethylene wear of individual patients reveals a high rate of femoral head penetration during the first 2 years after total hip replacement using metal-backed acetabular components inserted without cement. Interpretation of this femoral head penetration as true polyethylene wear may be erroneous, however, because creep of the polyethylene and acetabular liner movement within its metal shell cannot be measured.Keywords
This publication has 23 references indexed in Scilit:
- Dimensional characteristics of uncomplicated autopsy-retrieved acetabular polyethylene liners by ultrasoundJournal of Biomedical Materials Research, 1998
- Wear of ultra-high molecular weight polyethylene acetabular cups in a physiological hip joint simulator in the anatomical position using bovine serum as a lubricantProceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 1997
- Wear of retrieved cemented polyethylene acetabula with alumina femoral headsThe Journal of Arthroplasty, 1997
- Charnley wear model for validation of hip simulators' ball diameter versus polytetrafluoroethylene and polyethylene wearProceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 1997
- Measurement of polyethylene thickness in total hip arthroplasty: A technique analysisThe Journal of Arthroplasty, 1994
- Polyethylene wear in cemented metal-backed acetabular cupsThe Journal of Bone and Joint Surgery. British volume, 1993
- Polyethylene debris-induced osteolysis and loosening in uncemented total hip arthroplastyThe Journal of Arthroplasty, 1992
- Metallic wear in failed titanium-alloy total hip replacements. A histological and quantitative analysis.The Journal of Bone & Joint Surgery, 1988
- STATISTICAL METHODS FOR ASSESSING AGREEMENT BETWEEN TWO METHODS OF CLINICAL MEASUREMENTThe Lancet, 1986
- Rate of Wear in Total Hip ReplacementClinical Orthopaedics and Related Research, 1975