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Dynamic ultrasound assessment in the diagnosis of intra-articular entrapment of the biceps tendon (hourglass biceps): A preliminary investigation

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Author(s): Pujol N | Hargunani R | Gadikoppula S | Holloway B | Ahrens P

Journal: International Journal of Shoulder Surgery
ISSN 0973-6042

Volume: 3;
Issue: 4;
Start page: 80;
Date: 2009;
Original page

Keywords: Long head of biceps | hourglass | ultrasound

ABSTRACT
Background: The hourglass biceps, an intra-articular entrapment of the long head of the biceps (LHB), is a possible diagnosis in cases of shoulder pain associated with loss of passive elevation. Purpose: The objective of this study is to investigate the role of dynamic ultrasound (U/S) in determining the diagnosis of the hourglass biceps lesion. Materials and Methods: A prospective cohort of 16 patients with the clinical suspicion of an hourglass lesion, a preoperative ultrasound, and a confirmed hourglass LHB at surgery, were included in the study. Eight patients had preoperative dynamic ultrasound assessment of the LHB, and eight had standard ultrasound investigations and served as a control group. Results: Dynamic ultrasound accurately diagnosed an hourglass biceps in three out of eight cases. LHB hypertrophy was demonstrated in five out of eight cases with U/S and three out of eight cases with standard U/S. All patients were treated by excision of the intra-articular portion of the LHB, 15 by bipolar tenotomy, and one by LHB tenodesis. Conclusions: Dynamic ultrasound shows promise in improving the accuracy in diagnosis of LHB hypertrophy and the Hourglass lesion. Level of Evidence : III (Consecutive case-control study investigating a diagnostic test).
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