Can a high acromion index predict rotator cuff tears?

Purpose The purpose of this study was to identify the relationship between an acromion index (AI) and the size of a rotator cuff tear. The hypothesis of our study was that an AI will be higher in patients with a full-thickness tear than in patients with a partial-thickness articular-side tear, and t...

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Bibliographic Details
Published in:International orthopaedics 2012-05, Vol.36 (5), p.1019-1024
Main Authors: Kim, Jung Ryul, Ryu, Keun Jung, Hong, In Tae, Kim, Byung Kook, Kim, Jae Hwa
Format: Article
Language:English
Subjects:
Acromion - injuries
Acromion - surgery
Aged
Arthroscopy
Female
Humans
Male
Medicine
Medicine & Public Health
Middle Aged
Original Paper
Orthopedics
Retrospective Studies
Rotator Cuff - surgery
Rotator Cuff Injuries
Severity of Illness Index
Tendon Injuries - diagnosis
Tendon Injuries - surgery
Tendons - surgery
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Summary:Purpose The purpose of this study was to identify the relationship between an acromion index (AI) and the size of a rotator cuff tear. The hypothesis of our study was that an AI will be higher in patients with a full-thickness tear than in patients with a partial-thickness articular-side tear, and that it can be used as a predictor for the size of a rotator cuff tear. Methods We included 284 patients who had been diagnosed with rotator cuff tears and had undergone arthroscopic rotator cuff repair at our institute. All patients were divided into five distinct groups (partial-thickness articular side tear, and four subgroups of full-thickness tears) depending on the size of the rotator cuff tear on arthroscopy. In each patient, an AI was measured on the pre-operative oblique coronal MR images and then analysed to determine the difference between groups. Results There were statistically significant differences between the partial-thickness articular side rotator cuff tear and large-to-massive rotator cuff tear groups ( p  
ISSN:0341-2695
1432-5195
DOI:10.1007/s00264-012-1499-4