期刊
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART H-JOURNAL OF ENGINEERING IN MEDICINE
卷 225, 期 H5, 页码 511-519出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/2041303310393824
关键词
knee replacement; wear; arthroplasty; in vitro; unicompartmental
资金
- NIHR
- NIHR, Leeds Musculoskeletal Biomedical Research Unit (LMBRU)
- Wellcome Trust
- Engineering and Physical Sciences Research Council (EPSRC) [WT 088908/Z/09/Z]
- EPSRC [EP/F043872/1, EP/I019103/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/F043872/1, EP/I019103/1] Funding Source: researchfish
Unicompartmental knee replacements (UKR) are an option for surgical intervention for the treatment of single-compartment osteoarthritis. The aim of this study was to compare the wear of a low-conformity fixed-bearing UKR with a conforming mobile bearing UKR under two kinematic conditions, to investigate the effect of implant design and kinematics on wear performance in a physiological knee wear simulator. Under both sets of kinematic conditions, the relatively low-conforming fixed UKR showed lower wear, compared with the more conforming anterior-posterior sliding mobile bearing. However, it should be noted that differences in materials between the two designs also contribute to the relative wear performance of the bearings. The combined wear of the medial and lateral bearings of the fixed-bearing UKR as a 'total knee' were significantly reduced compared with a fixed-bearing total knee replacement studied under the same kinematic conditions.
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