Biochemical T2*MR Quantification of Ankle Arthrosis in Pes Cavovarus

被引:41
作者
Krause, Fabian G. [1 ]
Klammer, Georg [2 ]
Benneker, Lorin M. [1 ]
Werlen, Stefan [3 ]
Mamisch, Tallal C. [1 ]
Weber, Martin [1 ]
机构
[1] Univ Bern, Inselspital, Dept Orthopaed Surg, CH-3010 Bern, Switzerland
[2] Uniklin Balgrist, Dept Orthopaed Surg, Zurich, Switzerland
[3] Klin Sonnenhof, Dept Radiol, Bern, Switzerland
关键词
pes cavovarus; ankle arthrosis MRI; T2*mapping; ARTICULAR-CARTILAGE; OSTEOTOMY; JOINT;
D O I
10.1002/jor.21192
中图分类号
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学(修复外科学)];
学科分类号
100224 [整形外科学];
摘要
Pes cavovarus affects the ankle biomechanics and may lead to ankle arthrosis Quantitative T2 STAR (T2*) magnetic resonance (MR) mapping allows high resolution of thin cartilage layers and quantitative grading of cartilage degeneration Detection of ankle arthrosis using T2* mapping in cavovarus feet was evaluated Eleven cavovarus patients with symptomatic ankle arthrosis (13 feet, mean age 55 6 years group 1), 10 cavovarus patients with no or asymptomatic, mild ankle arthrosis (12 feet mean age 41 8 years group 2), and 11 controls without foot deformity (18 feet, mean age 29 8 years, group 3) had quantitative T2* MR mapping Additional assessment included plain radiographs and the American Orthopaedic Foot and Ankle Society (AOFAS) score (groups 1 and 2 only) Mean global T2* relaxation time was significantly different between groups 1 and 2 (p = 0 001) and groups 1 and 3 (p = 0 017) but there was no significance for decreased global T2* values in group 2 compared to group 3 (p = 0 345) Compared to the medial compartment T2* values of the lateral compartment were significantly (p = 0 025) higher within group 1 T2* values in the medial ankle joint compartment of group 2 were significantly lower than those of group 1 (p = 0 019) Ankle arthrosis on plain radiographs and the AOFAS score correlated significantly with T2* values in the medial compartment of group 1 (p = 0 04 and 0 039, respectively) Biochemical, quantitative T2* MR mapping is likely effective to evaluate ankle arthrosis in cavovarus feet but further studies are required (c) 2010 Orthopaedic Research Society Published by Wiley Periodicals Inc J Orthop Res 28 1562-1568 2010
引用
收藏
页码:1562 / 1568
页数:7
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