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The cartilage degeneration and joint motion of bipolar hemiarthroplasty

Title
The cartilage degeneration and joint motion of bipolar hemiarthroplasty
Author
김영호
Keywords
Joint Motion; Groin Pain; Cartilage Degeneration; Polyethylene Liner; Acetabular Cartilage
Issue Date
2012-10
Publisher
SPRINGER VERLAG KG
Citation
International Orthopaedics (INT ORTHOP), Oct 2012, 6(10), p.2015-2020. (6p)
Abstract
Purpose: The outcomes of bipolar hemiarthoplasty for osteonecrosis of femoral head have been disappointing due to cartilage degeneration and osteolysis. We investigated the cartilage degeneration, joint motion, and factors associated with osteolysis. Methods: We retrospectively reviewed 134 bipolar hemiarthroplasties. The wear rate of acetabular cartilage was calculated. The ranges of motion of outer bearing and inner bearing were determined, and the ratio (O/I ratio) was calculated. Results: The mean degeneration rate of acetabular cartilage was 0.34 ± 0.35 mm/year. We could observe that the outer bearing motion was dominant, but decreased over time. In addition, the degeneration rate of cartilage and the decline rate of outer bearing motion of the osteolysis group were significantly higher than those of the control group. Conclusions: Close observation is needed in cases of high degeneration rate of cartilage and rapid decline of outer bearing motion due to possibility of osteolysis.
URI
https://link.springer.com/article/10.1007/s00264-012-1567-9http://hdl.handle.net/20.500.11754/67353
ISSN
0341-2695
DOI
10.1007/s00264-012-1567-9
Appears in Collections:
COLLEGE OF MEDICINE[S](의과대학) > MEDICINE(의학과) > Articles
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