HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Medicine >
Peer-reviewed Journal Articles, etc >

Long-term stress distribution patterns of the ankle joint in varus knee alignment assessed by computed tomography osteoabsorptiometry

Files in This Item:
IO36-9_1871-1876.pdf684.06 kBPDFView/Open
Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/50157

Title: Long-term stress distribution patterns of the ankle joint in varus knee alignment assessed by computed tomography osteoabsorptiometry
Authors: Onodera, Tomohiro Browse this author
Majima, Tokifumi Browse this author
Iwasaki, Norimasa Browse this author
Kamishima, Tamotsu Browse this author
Kasahara, Yasuhiko Browse this author
Minami, Akio Browse this author
Keywords: Computed tomography
CT osteoabsorptiometry
total ankle arthroplasty
varus knee
Issue Date: Sep-2012
Publisher: Springer Berlin / Heidelberg
Journal Title: International Orthopaedics
Volume: 36
Issue: 9
Start Page: 1871
End Page: 1876
Publisher DOI: 10.1007/s00264-012-1607-5
Abstract: Purpose: The stress distribution of an ankle under various physiological conditions is important for long-term survival of total ankle arthroplasty. The aim of this study was to measure subchondral bone density across the distal tibial joint surface in patients with malalignment/instability of the lower limb. Methods: We evaluated subchondral bone density across the distal tibial joint in patients with malalignment/instability of the knee. Subchondral bone density of the ankle was measured by computed tomography (CT) osteoabsorptiometry from ten ankles as control and from 27 ankles with varus deformity/instability of the knee. The quantitative analysis focused on the location of the high-density area at the articular surface, to determine the resultant long-term stress on the ankle joint. Results: The area of maximum density of subchondral bone was located in the medial part in all subjects. The pattern of maximum density in the anterolateral area showed stepwise increases with the development of varus deformity/instability of the knee. Conclusions: Our results should prove helpful for designing new prostheses and determining clinical indications for total ankle arthroplasty.
Rights: The final publication is available at www.springerlink.com
Type: article (author version)
URI: http://hdl.handle.net/2115/50157
Appears in Collections:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 小野寺 智洋

 

Feedback - Hokkaido University