Subchondral bone marrow edema in patents with degeneration of the articular cartilage of the knee joint
Subchondral bone marrow edema in patents with degeneration of the articular cartilage of the knee joint
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DOI：
10.1148/radiol.2382050122
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发表时间：
2006-03-01
期刊：
影响因子：
19.7
通讯作者：
De Smet, A
中科院分区：
文献类型：
--
作者：
Kijowski, R;Stanton, P;De Smet, A
目的：通过磁共振（MR）成像回顾性确定关节镜检查证实的关节软骨缺损下软骨下骨髓水肿的患病率。材料和方法：本研究按照美国健康保险和责任法案（HIPAA）的规定进行，并在进行研究前获得了机构审查委员会的豁免或知情同意。该研究包括132例膝关节软骨缺损患者（70例男性，62例女性;平均年龄53岁），这些患者接受了膝关节MR成像和随后的膝关节镜手术。在进行关节镜检查时，使用Noyes分类系统对每个关节软骨病变进行分级。对MR检查进行回顾性分析，以确定大小。深入和软骨下骨髓水肿的位置，而不知道关节镜检查结果。采用配对F ′ s精确检验和两样本t检验将关节镜下软骨下骨髓水肿的MRI表现与关节软骨退变分级进行相关性分析。结果：在关节镜下发现的554例关节软骨缺损中，105例（19%）软骨下骨髓水肿。在6个1级软骨缺损中的任何一个下均未观察到，但在8个（4.9%）或163个2A级缺损下观察到。40（14.4%）或278个213级缺陷，98个3A级缺陷中的54个（55.1%）和9个3B级缺陷中的3个（33.3%）。在关节镜检查正常的238个关节面中，有4个（1.4%）的软骨下骨髓水肿。软骨下骨髓水肿的平均深度和横截面积随关节软骨损伤程度的增加而增加。结论：关节软骨损伤程度越高，软骨下骨髓水肿的发生率越高，软骨下骨髓水肿的深度和横截面积越大。(R)RSNA。2006.
Purpose: To retrospectively determine at magnetic resonance (MR) imaging the prevalence of subchondral bone marrow edema beneath arthroscopicalk proved articular cartilage, deFects. Materials and Methods:The study was performed in compliance with HIPAA regualations, and a waiver or informed consent was obtained front the institutional review board before the study was performed. The study consisted of 132 patients (70 men, 62 women; average age, 53 years) With articular cartilage defects of the knee joint who underwent MR imaging of the knee and subsequent arthroscopic knee surgery. At the time of archroscopy, each articulaar cartilage lesion was graded by using the Noyes classification system. MR examinations were retrospectively reviewed to determine the size. depth. and location of subchondral bone marrow edema without knowledge of the arthroscopic findings. Pairwise F'isher exact tests and two-sample t tests were used to correlate MR imagings findings of subchondral bone marrow edema with the arthroscopic grade of articular cartilage degeneration.Results: Subchondral bone marrow edema was seen beneath 105 (19%) of 554 articular cartilage defects identified at arthroscopy. It. was not observed beneath any of the six grade 1 cartilage defects but was observed beneath eight (4.9%) or 163 grade, 2A defects. 40 (14.4%) or 278 grade 213 defects, 54 (55.1%) of 98 grade 3A defects, and three (33.3%) of nine grade 3B defects. Subchondral bone marrow edema was also seen beneath four (1.4%) of 238 articular surfaces that appeared normal at arthroscopy. The mean depth and cross-sectional area of subchondral bone marrow edema increased with increasing grade of the articular cartilage lesion.Conclusion: Higher grades or articular cartilage defects are associated with higher prevalence and greater depth and cross-sectional area of subchondral bone marrow edema. (R) RSNA. 2006.