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Clinical characteristics of patients with posterosuperior labral tear: a comparison with patients with other shoulder disorders

Authors Park D

Received 28 February 2018

Accepted for publication 11 June 2018

Published 10 September 2018 Volume 2018:11 Pages 1795—1802


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Michael Schatman

Donghwi Park1,2

1Department of Rehabilitation Medicine, Daegu Fatima Hospital, Daegu, Republic of Korea; 2Department of Phamacology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea

Background: Among the various causes of shoulder pain, the glenoid labral tear is likely to be overlooked due to its ambiguous symptoms, especially if clinicians do not have a prior suspicion, making it difficult to diagnose, unlike adhesive capsulitis or a rotator cuff tear. Therefore, the aim of this study was to evaluate the clinical features of posterosuperior (PS) labral tear.
Methods: Of the patients who visited the clinic, the medical records of patients with shoulder pain who underwent shoulder magnetic resonance imaging or ultrasound after intra-articular injection (arthrosonography) were investigated retrospectively. Based on these criteria, a total of 120 patients with adhesive capsulitis, rotator cuff problem, or PS labral tear were included for analysis in this study.
Results: In the physical examination, all patients with a PS labral tear were positive on the O’Brien test (13/13, 100%) and the external rotation (ER) test with the upper arm in the abduction position (abduction and ER [ABER] test) (13/13, 100%), but they were negative on other tests, such as the Hawkins–Kennedy (1/13, 7.69%) and Neer (0/13, 0.00%) tests. Except one patient, all patients with a PS labral tear were negative on the ER test with the upper arm in the neutral position (ER test) (1/13, 7.69%). In the clinical history, all patients with a PS labral tear had a characteristic episode of shoulder pain occurring in the excessive ABER posture.
Conclusion: In patients with characteristic physical findings (no definite loss of motion of the shoulder joint, negative in an ER test, but positive in an ABER test and O’Brien test), and with a clinical history of PS labral tear (a history of pain occurring with the excessive ABER posture), clinicians need to have a suspicion of PS labral tear and to identify the PS labral tear using MRI or arthrosonography

Keywords: labral tear, arthrosonography, glenoid labrum, adhesive capsulitis, posterosuperior labral tear

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