Nicholas M Beckmann1, Michael Q Tran2, Chunyan Cai3,4. 1. Department of Diagnostic and Interventional Imaging, UTHealth-McGovern School of Medicine, 6431 Fannin Street, 2.130B, Houston, TX, 77030, USA. Nicholas.M.Beckmann@uth.tmc.edu. 2. Department of Diagnostic and Interventional Imaging, UTHealth-McGovern School of Medicine, 6431 Fannin Street, 2.130B, Houston, TX, 77030, USA. 3. Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA. 4. Biostatistics/Epidemiology/Research/Design Core, Center for Clinical and Translational Sciences, The University of Texas Health Science Center at Houston, 6410 Fannin, UTPB 1100.08, Houston, TX, 77030, USA.
Abstract
OBJECTIVE: To compare the incidence of rotator cuff tears on shoulder MRI in patients who have rotator cuff calcific tendinopathy with that in patients without calcific tendinopathy in a frequency-matched case-control study. MATERIALS AND METHODS: Retrospective review shoulder MRIs of 86 patients with rotator cuff calcific tendinopathy and an 86-patient age-, gender-, and laterality-matched control group using frequency matching. RESULTS: No statistically significant difference (odds ratio: 0.72, 95% confidence interval: 0.38-1.38, p = 0.32) was found in the incidence of rotator cuff tear in the calcific tendinopathy (27.9%) and control groups (34.9%). A significant (p < 0.001) difference in the size of rotator cuff tear was seen between the two groups, with 12.5% of tears being full-thickness in the calcific tendinopathy group and 63.3% of tears being full-thickness in the control group. Only 3 of the 24 (12.5%) rotator cuff tears present in the calcific tendinopathy group occurred at the site of tendon calcification. CONCLUSION: Patients presenting with indeterminate shoulder pain and rotator cuff calcific tendinopathy are not at increased risk for having a rotator cuff tear compared with similar demographic patients without calcific tendinopathy presenting with shoulder pain. Calcific tendinopathy and rotator cuff tears likely arise from different pathological processes.
OBJECTIVE: To compare the incidence of rotator cuff tears on shoulder MRI in patients who have rotator cuff calcific tendinopathy with that in patients without calcific tendinopathy in a frequency-matched case-control study. MATERIALS AND METHODS: Retrospective review shoulder MRIs of 86 patients with rotator cuff calcific tendinopathy and an 86-patient age-, gender-, and laterality-matched control group using frequency matching. RESULTS: No statistically significant difference (odds ratio: 0.72, 95% confidence interval: 0.38-1.38, p = 0.32) was found in the incidence of rotator cuff tear in the calcific tendinopathy (27.9%) and control groups (34.9%). A significant (p < 0.001) difference in the size of rotator cuff tear was seen between the two groups, with 12.5% of tears being full-thickness in the calcific tendinopathy group and 63.3% of tears being full-thickness in the control group. Only 3 of the 24 (12.5%) rotator cuff tears present in the calcific tendinopathy group occurred at the site of tendon calcification. CONCLUSION:Patients presenting with indeterminate shoulder pain and rotator cuff calcific tendinopathy are not at increased risk for having a rotator cuff tear compared with similar demographic patients without calcific tendinopathy presenting with shoulder pain. Calcific tendinopathy and rotator cuff tears likely arise from different pathological processes.
Authors: Nicholas C Laucis; Kelli A Rosen; Anay Thodge; Jessica R Leschied; Chad L Klochko; Steven B Soliman Journal: Clin Rheumatol Date: 2021-01-21 Impact factor: 2.980