Effect of biceps rerouting technique to restore glenohumeral joint stability for large irreparable rotator cuff tears: a cadaveric biomechanical study.

Han, Sang-Yup; Lee, Thay Q; Wright, David J; Park, Il-Jung; Maniglio, Mauro; McGarry, Michelle H; Lee, Hyo-Jin; Kim, Yang-Soo (2020). Effect of biceps rerouting technique to restore glenohumeral joint stability for large irreparable rotator cuff tears: a cadaveric biomechanical study. Journal of shoulder and elbow surgery, 29(7), pp. 1425-1434. Elsevier 10.1016/j.jse.2019.11.015

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BACKGROUND

The concept of stabilizing the humerus has taken on an important role in the treatment of irreparable cuff tears, and the biceps rerouting (BR) method is considered one of the most effective treatments in this field. The study aimed to evaluate the biomechanical effects of BR for large irreparable rotator cuff tears (LICTs).

METHODS

A total of 8 cadaveric shoulders were used for testing under 5 conditions: intact shoulder, LICT, partial repair (PR), BR, and biceps rerouting with side-to-side repair (BRSS). Total rotational range of motion was measured at 40°, then 20°, and finally 0° of glenohumeral (GH) abduction. Superior humeral translation and subacromial contact pressure were measured at 0°, 30°, 60°, and 90° of external rotation at each abduction angle. Repeated-measures analyses of variance with Tukey post hoc tests were used for statistical comparisons.

RESULTS

Superior humeral translation was significantly decreased in the BR and BRSS conditions compared with the LICT and PR conditions at 0° and 20° of GH abduction (P < .001). BR and BRSS significantly reduced subacromial contact pressure compared with LICT and PR at 0° of GH abduction (P < .001). There was no significant decrease in total rotational range of motion after BR at any abduction angle.

CONCLUSION

BR biomechanically restored shoulder stability without overconstraining range of motion in an LICT model.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Orthopaedic, Plastic and Hand Surgery (DOPH) > Clinic of Orthopaedic Surgery

UniBE Contributor:

Maniglio, Mauro

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1058-2746

Publisher:

Elsevier

Language:

English

Submitter:

Kathrin Aeschlimann

Date Deposited:

30 Dec 2020 11:33

Last Modified:

05 Dec 2022 15:42

Publisher DOI:

10.1016/j.jse.2019.11.015

PubMed ID:

32081635

Uncontrolled Keywords:

Superior capsule reconstruction biceps rerouting cadaveric large irreparable rotator cuff tear subacromial contact pressure superior humeral translation

BORIS DOI:

10.48350/149019

URI:

https://boris.unibe.ch/id/eprint/149019

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