These factors can cause tendon wear and ultimately a part- or full-thickness rotator cuff tear. Specifically, extrinsic factors cause compression of the rotator cuff tendons and varying degrees of microtraumas, while intrinsic mechanisms are associated with degenerative changes in the rotator cuff tendon. The etiology of noncalcific rotator cuff tendinopathies is still not completely clear but is likely to be the result of a combination of intrinsic and extrinsic factors. Rotator cuff pathology is one of the principal causes of shoulder pain, including calcific and noncalcific tendinopathy. Shoulder pain is frequently encountered in medical practice with the prevalence ranging from 7% to 27% in the general population. This trial is registered with ChiCTR1900022932. F-SWT proved to be significantly superior to R-SWT at long-term follow-up (more than 24 weeks). Both F-SWT and R-SWT are effective in patients with noncalcific rotator cuff tendinopathy. Similar results were found in CMS changes and radiographic findings. However, F-SWT resulted in significantly lower NRS compared with R-SWT at 24 weeks and 48 weeks after treatment ( vs. There were no significant differences between the two groups regarding NRS pain score and CMS score within 24 weeks after intervention (all ).
Secondary endpoints were changes in the mean NRS pain scores at all other follow-up points, changes in the mean CMS scores, and radiographic findings. The primary endpoint was the change in the mean NRS pain score from baseline to 24 weeks after the intervention. Pain level and shoulder function were assessed with the numerical rating scale (NRS) and Constant-Murley Scale (CMS).
In each session, mean energy flux density (EFD) for F-SW 3000 shots was mJ/mm 2 with Hz, while average pressure for R-SW 3000 shots was bar with Hz. Patients in group A received 4 sessions of F-SWT, while patients in group B were treated by 4 sessions of R-SWT. A total of 46 patients affected by noncalcific rotator cuff tendinopathies were randomly divided into 2 groups of 23 individuals. This study is aimed at comparing the effectiveness of F-SWT versus R-SWT for the management of noncalcific rotator cuff tendinopathies. The superiority of focused shockwave therapy (F-SWT) versus radial shockwave therapy (R-SWT) for treating noncalcific rotator cuff tendinopathies remains controversial.
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