Failure of the all-polyethylene patellar component after total knee arthroplasty

Authors
Huang, CH Lee, YM Lai, JH Liau, JJ Cheng, CK
Citation
Ch. Huang et al., Failure of the all-polyethylene patellar component after total knee arthroplasty, J ARTHROPLA, 14(8), 1999, pp. 940-944
Citations number
18
Categorie Soggetti
Ortopedics, Rehabilitation & Sport Medicine
Journal title
JOURNAL OF ARTHROPLASTY
ISSN journal
08835403 → ACNP
Volume
14
Issue
8
Year of publication
1999
Pages
940 - 944
Database
ISI
SICI code
0883-5403(199912)14:8<940:FOTAPC>2.0.ZU;2-L
Abstract
From 1991 to 1996, 953 cases of porous-coated anatomic modular knee prosthe ses with all-polyethylene patellar components were implanted. Among them, 4 cases had breakage of the patellar component at the peg-button interfaces. One had loosening of the patellar component by cutting out the patellar bo ny bed. Heavy body weight, weakness of the pegs of the all-polyethylene pat ellar component, and osteonecrosis of the patella were conceived as the cau ses of failure.