Accuracy of measurement of polyethylene wear with use of radiographs of total hip replacements

Title
Accuracy of measurement of polyethylene wear with use of radiographs of total hip replacements
Authors
Kang, J.S.
Keywords
LOW-FRICTION ARTHROPLASTY, BACKED ACETABULAR CUPS
Issue Date
2003-12
Publisher
JOURNAL BONE JOINT SURGERY INC
Abstract
Background: Although a number of methods are used to estimate polyethylene liner wear from radiographs of total hip replacements, there is no consensus with regard to the accuracy of these methods. The purpose of this study was to compare the accuracy of several such measurement methods with use of both laboratory radiographs and routine clinical radiographs.
Methods: A phantom apparatus was designed to simulate random values of three-dimensional wear, with varying degrees of cup abduction and anteversion, and to obtain anteroposterior and cross-table lateral radiographs with each value. Wear was measured with use of the Charnley duoradiographic method, the Livermore method, and the method described by Dorr and Wan, as well as with use of PolyWare and Hip32 software packages, both with and without three-dimensional measurements. Clinical wear was measured from conventional radiographs made prior to revision surgery in fourteen patients and was compared with wear measured directly from the retrieved liners with use of a coordinate measuring machine.
URI
http://dspace.inha.ac.kr/handle/10505/20324
ISSN
0021-9355
Appears in Collections:
Medical School/College of Medicine (의학전문대학원/의과대학) > Medical Science (의학) > Journal Papers, Reports(의학 논문, 보고서)
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