Abstract
BackgroundThis study aims to evaluate the incidence of calcific tendinitis (CaT) in rotator cuff tears (RCTs) and to assess the correlation between CaT and RCTs with magnetic resonance imaging (MRI).MethodsThe MRI of 108 patients with rotator cuff CaT admitted to our hospital from January 2019 to January 2021 were retrospectively analyzed. Another retrospective analysis was made of 108 patients with similar age, gender, occupation, and shoulder injury side to those in the first group. The incidence of RCTs and their correlation with CaT were assessed based on an MRI of shoulder joints.ResultsThere was a statistical difference (p < 0.05) in the incidence of RCTs between the CaT group (23.4%) and the control group (37.2%). No significant difference was observed in the size of the RCTs between the two groups (P = 0.422). In the CaT group, 17.4% of patients had complete tears, compared with 26.3% in the control group. There was no significant correlation between the calcification site and RCTs in the CaT group, and only 3.7% of patients suffered calcification and a tear in the exact location of the same tendon (P > 0.05, r = 0.03).ConclusionsCompared with patients with shoulder pain without CaT, patients with rotator cuff CaT suffered no increased risk of RCTs on MRI, so CaT and RCTs may have different pathological causes, and there is no significant correlation between the two.
Highlights
This study aims to evaluate the incidence of calcific tendinitis (CaT) in rotator cuff tears (RCTs) and to assess the correlation between CaT and RCTs with magnetic resonance imaging (MRI)
The control group consisted of 108 patients whose age, sex, occupations, and side of shoulder lesions matched those of the CaT group and whose MRI reports showed no CaT (Fig. 1)
The incidence of diabetes and hypothyroidism was higher in the CaT group (31.5% vs. 25.9%; 7.4% vs. 2.8%) than in the control group, as there was a known correlation between the two diseases and CaT
Summary
This study aims to evaluate the incidence of calcific tendinitis (CaT) in rotator cuff tears (RCTs) and to assess the correlation between CaT and RCTs with magnetic resonance imaging (MRI). Rotator cuff calcific tendinitis (CaT) is a disease characterized by calcium deposits in the rotator cuff tendon. It can affect any tendon in the rotator cuff, but the supraspinatus tendon is most commonly affected. There is always controversy about the correlation between rotator cuff CaT and rotator cuff tears (RCTs). Calcific tendonitis and RCTs may provide a favorable condition for the development of each other and play a role in each other’s etiological mechanism [4].
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