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Delaminated Rotator Cuff Tear: Concurrent Concept and Treatment
Clin Should Elbow 2019;22:159-170
Published online September 1, 2019;  https://doi.org/10.5397/cise.2019.22.3.159
© 2019 Korean Shoulder and Elbow Society.

Jung-Han Kim, Soo-Hwan Jung

Department of Orthopedic Surgery, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
Correspondence to: Soo-Hwan Jung
Department of Orthopedic Surgery, Inje University Busan Paik Hospital, Inje University College of Medicine, 75 Bokji-ro, Busanjin-gu, Busan 47392, Korea
Tel: +82-51-890-6129, Fax: +82-51-892-6619, E-mail: osoohwanj@gmail.com, ORCID: https://orcid.org/0000-0002-3847-3642
Review article does not need an IRB approval.
Received February 15, 2019; Revised March 16, 2019; Accepted May 6, 2019.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
 Abstract
Delaminated rotator cuff tear pertains to the horizontal split of the tendon substance. As reported previously, the presence of a delaminated tear and incidence of delaminated rotator cuff tear ranges from 38% to 92%. The different strain intensities applied across the rotator cuff tendon, and the shear stress between the bursal and articular layers seem to play a role in its pathogenesis. In a delaminated rotator cuff tear, the degree and direction of retraction between two layers differ, with accompanying intrasubstance cleavage. A surgeon therefore needs to consider and carefully evaluate the tear characteristics when repairing delaminated rotator cuff tear. Delaminated rotator cuff tear is considered to be a poor prognostic factor after rotator cuff repair, but numerous surgical repair techniques have been introduced and applied to resolve this problem. Recent literature has reported good clinical outcomes after delaminated rotator cuff repair.
Keywords : Delaminated; Rotator cuff tear; Shoulder; Arthroscopic repair; Prognostic factor