The best surgical treatment for an irreparable rotator cuff tear is controversial. In such cases, partial rotator cuff repair, primarily involving the posterior cuff in most reports, has been shown to be beneficial. The authors retrospectively investigated 41 patients who underwent arthroscopic subscapularis-only repair and greater tuberoplasty between April 2003 and August 2009 for massive 3-t...

We determined lidocaine's action on torn rotator cuff tendons in vitro and in vivo. For in vitro experiments, cell proliferation and viability assays were performed using tenocytes derived from human torn rotator cuff tendons. For in vivo experiments, acute rotator cuff tears were made on the supraspinatus tendons in the rats' bilateral shoulders; before closure, lidocaine was injected into the...

Tendon-to-bone healing after rotator cuff repair surgery has a failure rate of 20%-94%. There has been a recent interest to determine the factors that act as determinants between successful and unsuccessful rotator cuff repair. Vitamin D level in patients is one of the factors that have been linked to bone and muscle proliferation and healing, and it may have an effect on tendon-to-bone healing...

Subscapularis tendon tears are a well-established cause of shoulder pain. The objective of the current study was to evaluate the associated shoulder pathology in patients with full-thickness subscapularis tendon tears using magnetic resonance imaging. Forty-seven magnetic resonance imaging studies taken between 2008 and 2009 with a diagnosis of full-thickness subscapularis tendon tears were rev...

Correspondence We welcome letters to the Editor concerning articles which have recently been published. Such letters will be subject to the usual stages of selection and editing; where appropriate the authors of the original article will be offered the opportunity to reply. Letters should normally be under 300 words in length, double-spaced throughout, signed by all authors and fully referenced...

    Background: Magnetic resonance imaging (MRI) has long been considered a perfect imaging study for evaluation of shoulder pathologies despite occasional discrepancies between MR reports and arthroscopic findings. In this study we aim to evaluate impact of imaging center as an indicator of image quality on accuracy of MRI reports in diagnosis of rotator cuff tendon pathologies. Methods: We re...

A rotator cuff tear causes morphologic changes in rotator cuff muscles and tendons and reduced shoulder strength. The mechanisms by which these changes affect joint strength are not understood. This study's purpose was to empirically determine rotation moment arms for subregions of supraspinatus, infraspinatus, and for teres minor, and to test the hypothesis that subregions of the cuff tendons ...

UNLABELLED To evaluate the results from patients who underwent arthroscopic debridement of extensive irreparable rotator cuff injuries. METHODS 27 patients were operated between 2003 and 2007, and 22 of them were evaluated. The surgical procedure consisted of arthroscopic debridement of the stumps of the tendons involved, bursectomy, removal of acromial osteophytes and, possibly, biceps tenot...

O w large body of evidence supports the fact that ubluxation and dislocation of the long head of the iceps tendon are relatively common findings associted with rotator cuff pathology. Dislocation of the ong head of the biceps is often linked to chronic egenerative changes seen with impingement synrome and tears in the rotator cuff, especially the ubscapularis tendon. One report states that medi...

The biochemical changes on normal and degenerated tissues of rotator cuff supraspinatus tendons were probed by FT-Raman spectroscopy. The Raman spectra showed differences on the spectral regions of cysteine, amino acids, nucleic acids, carbohydrates, and lipids. These spectral differences were assigned to pathological biochemical alterations due to the degenerative process of the tendon. Princi...