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Association between Magnetic Resonance Imaging and the Result of Medial Branch Blocks

机译：磁共振成像与内侧支传导阻滞结果之间的关联

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摘要

The aim of this retrospective practice audit was to assess the correlation between painful zygapophysial joints and changes seen in magnetic resonance imaging (MRI). Patients with unilateral pain were tested with controlled medial branch blocks. The MRI scans of patients with a positive response were compared blinded with normal MRI scans. The dimensions of the joint were assessed and osteoarthritis was graded. Fifteen symptomatic patients and 15 asymptomatic patients were included and evaluated. Comparison of the joints showed that the maximum diameter of symptomatic joints was significantly larger, and the grading of osteoarthritis was significantly higher for symptomatic joints. No healthy patient was assigned a grade 3. Grades 2 and 3 were found significantly more often in symptomatic patients. Only one symptomatic joint was assigned grade 0. Grade 0 was found significantly more often in asympto-matic patients. The presented MRI technique has limited value as a diagnostic test for lumbar zygapophysial joint pain. It is not possible to detect a single symptomatic joint. However, the osteoarthritis grading for the lumbar zyg-apophysial joints might be helpful for finding predictors for negative response if the results of the rating are grade zero. Therefore, unnecessary medial branch blocks might be avoided.
机译：回顾性实践审核的目的是评估疼痛的关节突关节与磁共振成像（MRI）中观察到的变化之间的相关性。对单侧疼痛患者进行了内侧支阻滞控制。将阳性反应患者的MRI扫描与正常MRI扫描盲法进行比较。评估关节的尺寸并对骨关节炎进行分级。纳入并评估了15例有症状患者和15例无症状患者。关节的比较显示，症状关节的最大直径明显更大，而症状关节的骨关节炎等级明显更高。没有健康的患者被定为3级。有症状的患者发现2级和3级的频率更高。仅一个有症状的关节被指定为0级。在无症状患者中，发现0级的频率明显更高。提出的MRI技术作为腰椎ga突关节疼痛的诊断测试价值有限。无法检测到单个症状关节。但是，如果评定结果为零级，则对腰椎zy突节的骨关节炎分级可能有助于寻找阴性反应的预测因子。因此，可以避免不必要的中间分支块。

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