Journal List > Korean J Sports Med > v.33(2) > 1054551

Korean J Sports Med. 2015 Dec;33(2):67-74. Korean.
Published online December 07, 2015.  https://doi.org/10.5763/kjsm.2015.33.2.67
Copyright © 2015 The Korean Society of Sports Medicine
Factors Influencing the Restoration of Acromiohumeral Distance of Immediate Postoperative Period in Patients Who Have Rotator Cuff Repair Surgery with Large-to-Massive Rotator Cuff Tears
Byung Wook Song, Woo Kim and Tae-Yon Rhie
Department of Orthopaedic Surgery, Nalgae Hospital, Seoul, Korea.

Correspondence: Byung Wook Song. Department of Orthopaedic Surgery, Nalgae Hospital, 193-1 Moohak-ro, Dongdaemoon-gu, Seoul 02578, Korea. Tel: +82-2-959-9191, Fax: +82-2-957-1313, Email: wookari@empas.com
Received July 09, 2015; Revised November 06, 2015; Accepted November 10, 2015.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.


Abstract

The aim of the present study was to evaluate the degree of restoration of acromiohumeral distance of immediate postoperative period in patients who have rotator cuff repair surgery with large-to-massive rotator cuff tears and to find clinical and radiologic factors influencing this. Fifty four patients who had arthroscopic rotator cuff repair with available postoperative magnetic resonance images done within postoperative one week were included. Retrospective review of the medical data and radiologic images was done. It was revealed that acromiohumeral distance of immediate postoperative period was smaller in patients with larger sized rotator cuff tears, more retraction of the torn end and narrower preoperative acromiohumeral distance. The degree of inferior migration of the humeral head which could be obtained through the surgery alone was more in patients who have more difference between acromiohumeral distance measured on preoperative standing simple radiography and acromiohumeral distance measured on preoperative magnetic resonance image.

Keywords: Shoulder; Rotator cuff; Acromion; Humerus

Figures


Fig. 1
Measurement of acromiohumeral distance on simple radiography. The first proximal line is placed upon the sclerotic line, representing the "roof" at the undersurface of the acromion. The second line is drawn parallel to the first tangentially to the most superior point of the humeral head.
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Fig. 2
Measurement of acromiohumeral distance on T2-weighted fat suppression magnetic resonance imaging. The first line is placed at the most distal part of the acromion appearing to the bone, and the second line is drawn through the superior most point of bony part of the humerus (not onto cartilage). The respective distance between the 2 lines represents the acromiohumeral distance. Preop: peroperative, Postop: postoperative.
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Fig. 3
Illustration of the calculation of the IMH. PreMR_AHD: acromiohumeral distance on preoperative magnetic resonance imaging, IMH: inferior migration of the humerus, BR: the thickness of the resected bone by acromioplasty, IMH: inferior migration of the humerus, MRI: magnetic resonance imaging.
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Tables


Table 1
Clinical variables considered
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Table 2
Results of measurement of the radiologic variables
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Table 3
Correlation of postoperative acromiohumeral distance and inferior migration of humeral head with clinical and radiologic variables
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Notes

Conflict of Interest:No potential conflict of interest relevant to this article was reported.

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