Sensitivity and Specificity of Noncontrast Magnetic Resonance Imaging Reports in the Diagnosis of Type-II Superior Labral Anterior-Posterior Lesions in the Community Setting

Abstract

Our results demonstrate a low sensitivity and high specificity in the diagnosis of Type-II SLAP lesions with noncontrast MRI in this community setting. Musculoskeletal fellowship-trained radiologists had significantly higher sensitivities in accurately diagnosing the lesion than did radiologists without such training. Noncontrast MRI is not a reliable diagnostic tool for Type-II SLAP lesions in a community setting.

A comparison of magnetic resonance arthrography and arthroscopic findings in the assessment of anterior shoulder dislocations

“…However, the available evidence on the accuracy of MRA in diagnosing SLAP lesions is conflicting with two studies reporting sensitivity and specificity as high as 0.89 and 0.91 respectively [24,26]. On the other hand, an alternative study reports a sensitivity of 0.38 after unenhanced MRI [27]. The results from this study suggest that MRA might not be as accurate at diagnosing SLAP lesions as has been reported previously.…”

In-office diagnostic arthroscopy for knee and shoulder intra-articular injuries its potential impact on cost savings in the United States

“…In community settings the sensitivities and specificities of MRI findings are less accurate [3-6] than what is found in academic medical centers (where the sensitivities and specificities reported on in this paper were derived). This improvement in accuracy is due to better trained clinicians in academic medical centers and better MRI equipment.…”

“…Further, in similar systematic reviews for internal lesions of the shoulder [2] sensitivities and specificities were found to be 85.5% and 90.4% respectively for partial or full thickness rotator cuff tears. The data used in these meta-analyses were mainly from academic institutions where MRI assessment/accuracy of diagnosis is typically better than what is seen in the community setting (where most MRIs are performed) [3-6]. What these sensitivities and specificities mean in knee pathology is that in approximately one out of every 5 cases (or 100% less 81% specificity value above = 19%; which is the FP value) of a positive MRI finding for a medial meniscus lesion, there may not be a lesion present.…”

SLAP Lesions Part III: Return to Play After SLAP Repair

“…Magee et al also reported that with a 3.0 T MRI, sensitivity was 90 with 100 % specifi city. Data published in 2013 suggests that in community settings, there exists a low sensitivity and high specifi city in the diagnosis of Type II SLAP tears using noncontrast MRI including 1.5 and 3.0 T strength systems [ 19 ].…”