Abstract
BackgroundThe etiology and relevance of long head of biceps tendon (LHBT) pathology is debated. As it can have important therapeutic consequences and physical examination can be misleading, various morphologic parameters have been described to try to predict it. HypothesisWe hypothesized that bicipital groove cross-sectional area (CSA), as assessed by ultrasonography, could be related to intra-articular tendon pathology. Material and methodsFifty-eight consecutive consenting patients who underwent arthroscopic shoulder surgery at our hospital were selected. Diagnosis consisted mainly of rotator cuff tears, but also of anterior instability and subacromial impingement. Before surgery, ultrasonography was performed to measure width, depth and cross-sectional area of the bicipital groove. LHBT pathology was assessed during arthroscopy and classified as tendinopathy, partial disruption or complete tear and correlated to the ultrasonography measurements. ResultsBicipital groove width was of 6.7±1.2mm in patients with a normal LHBT and 7.3±1.9mm with patients with an abnormal LHBT (p=0.234). Bicipital groove depth was of 3.5±0.5mm in patients with a normal LHBT and 3.7±1.1mm with patients with an abnormal LHBT (p=0.251). Bicipital groove CSA was of 16.6±4.5 mm2 in patients with a normal LHBT and 19.1±7.1 mm2 with patients with an abnormal LHBT (p=0.108). ConclusionOur results do not support any correlation between LHBT pathology and the bicipital groove CSA, even though this measurement, as its width and depth, are somewhat higher in patients with a LHBT injury. Level of evidenceI; diagnostic study.
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