These authors used 12 human cadaveric shoulders to compare equivalently sized supraspinatus cuts of either the anterior rotator cuff cable (n = 6) or the adjacent rotator cuff crescent (n = 6). Under loading the gap distance of large cable tears was significantly greater than that of large crescent tears (median gap distance, 1.3 mm) (p = 0.002), a finding that supports the importance of the anterior cable.
Comment: This is an excellent anatomical/biomechanical study. The authors' statement of the clinical relevance may not, however, necessarily follow: "Clinicians should consider early repair of rotator cuff cable tears, which may need surgical intervention to address their biomechanical pathology. In contrast, surgical treatment may be more safely delayed for rotator cuff crescent tears." It is unclear whether the repair of an acute tendon tear of the crescent should be delayed, just as it is unclear that the repair of a failed anterior cable should be rushed if conditions are not favorable for a durable repair.
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