Biochemical T2*MR Quantification of Ankle Arthrosis in Pes Cavovarus
Biochemical T2*MR Quantification of Ankle Arthrosis in Pes Cavovarus
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DOI：
10.1002/jor.21192
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发表时间：
2010-12-01
影响因子：
2.8
通讯作者：
Weber, Martin
中科院分区：
文献类型：
--
作者：
Krause, Fabian G.;Klammer, Georg;Weber, Martin
应用磁共振T2星星（T2 *）成像技术对11例有症状性踝关节病的内翻足患者进行了评价。第1组13只足，平均年龄55 6岁，10例无症状或无症状的腔内翻患者，轻度踝关节炎第2组12只足，平均年龄41.8岁，对照组11只足无畸形（18英尺，平均年龄29 8岁，第3组）进行了定量T2* MR标测。其他评估包括X线平片和美国足踝矫形协会（AOFAS）评分（仅第1组和第2组）第1组和第2组之间的平均整体T2* 弛豫时间显著不同（p = 0 001）和组1和组3（p = 0.017），但与组3相比，组2中总体T2* 值的降低无显著性与内侧室相比，外侧室的T2* 值显著增加（P = 0.345）。组2踝关节内侧间室的T2* 值显著低于组1（p = 0.025）（p = 0019）第1组踝关节X线平片和AOFAS评分与内侧间室T2* 值显著相关（P <001）。（p分别为0.04和0.039）生化，定量T2* MR标测可能对评估腔内翻足的踝关节病有效，但需要进一步研究（c）2010骨科研究协会出版，Wiley Periodicals Inc J Orthop Res 28 1562-1568 2010
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