Central osteophytes in the knee: Prevalence and association with cartilage defects on MR imaging
Central osteophytes in the knee: Prevalence and association with cartilage defects on MR imaging
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DOI：
10.2214/ajr.176.2.1760359
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发表时间：
2001-02-01
影响因子：
5
通讯作者：
Jee, WH
中科院分区：
文献类型：
--
作者：
McCauley, TR;Kornaat, PR;Jee, WH
OBJECTIVE.本研究的目的是确定中央骨赘在膝关节MR成像患者中的患病率和位置，以及中央骨赘与关节软骨缺损、边缘骨赘的关系。材料和方法：MRI上所见的膝关节撕裂和前交叉韧带撕裂。对200名连续患者进行膝关节MR成像，评价其中央骨赘、关节软骨缺损、边缘骨赘、踝关节撕裂和前交叉韧带撕裂。使用1.5 T扫描仪，并由两名经验丰富的肌肉骨骼放射科医生达成共识进行评估。排除7例患者，研究人群中留下193例患者。膝关节中央骨赘的患病率为15%（29例患者中有35个中央骨赘）。中央骨赘患者年龄较大（平均年龄，52岁vs 38岁），体重更重（平均体重，204磅[92公斤]对174磅[78公斤]），有更多的关节软骨缺损（平均4.3对1.3），边缘骨赘（平均3.9对1.1）多于无中心骨赘的患者（p < 0.0001，Student's t检验）。有中央骨赘的患者更可能发生骨窗撕裂（p = 0.004）。卡方检验），但他们并不更有可能有前十字韧带撕裂。所有中央骨赘均与同一部位的关节软骨缺损相关。35例中央型骨赘中32例为全层或近全层。中央骨赘在接受膝关节MR成像的患者中很常见。当在膝关节中观察到中央骨赘时，很可能存在相关的全层或近全层关节软骨缺损。
OBJECTIVE. The objective of this study was to determine the prevalence and location of central osteophytes in patients referred for MR imaging of the knee and the relationship of central osteophytes to articular cartilage defects, marginal osteophytes. meniscal tears, and anterior cruciate ligament tears as seen on MR imaging.MATERIALS AND METHODS. Two hundred consecutive patients referred for MR imaging of the knee were evaluated for central osteophytes, articular cartilage defects, marginal osteophytes, meniscal tears, and anterior cruciate ligament tears. A 1.5-T scanner was used, and assessments were made by consensus of two experienced musculoskeletal radiologists. Seven patients were excluded, leaving 193 patients in the study population,RESULTS. The prevalence of central osteophytes in the knee was 15% (35 central osteophytes in 29 patients). Patients with central osteophytes were older (mean age, 52 years versus 38 years), weighed more (mean weight, 204 Ib [92 kg] versus 174 Ib [78 kg]), had more articular cartilage defects (mean,4.3 versus 1.3), and had more marginal osteophytes (mean, 3.9 versus 1.1) than patients without central osteophytes (p < 0.0001, Student's t test). Patients with central osteophytes were more likely to have a meniscal tear (p = 0.004. chi-square test), but they were not more likely to have an anterior cruciate ligament tear. All central osteophytes were associated with articular cartilage defects at the same location. which were full or near-full thickness on MR imaging for 32 of 35 central osteophytes.CONCLUSION. Central osteophytes are common in patients referred for MR imaging of the knee. When central osteophytes are seen in the knee there is a high likelihood of an associated full thickness or near-full thickness articular cartilage defect.