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International Orthopaedics

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01-11-2018 | Original Paper

Bone mineralization changes of the glenoid in shoulders with symptomatic rotator cuff tear

Authors: Yohei Harada, Shin Yokoya, Yuji Akiyama, Yu Mochizuki, Mitsuo Ochi, Nobuo Adachi

Published in: International Orthopaedics | Issue 11/2018

Abstract

Purpose

Computed tomography osteoabsorptiometry (CTO) is a method to analyze the stress distribution in joints by measuring the subchondral bone density. The purpose of this study was to evaluate the bone mineralization changes of the glenoid in shoulders with rotator cuff tears by CTO and to evaluate whether rotator cuff tears are associated with stress changes in the glenoid.

Methods

In total, 32 patients, who were diagnosed with unilateral rotator cuff tears and underwent arthroscopic rotator cuff repair, were enrolled in this study. They underwent CT scanning of both shoulders pre-operatively and the glenoid was evaluated using CTO. Hounsfield units (HU) in seven areas of the glenoid were compared between the affected and unaffected sides.

Results

The central area of the glenoid on the affected side had significantly lower HU than on the unaffected side among all patients. Focusing on the rotator cuff tear size and the subscapularis tendon, only patients with larger cuff tears or with subscapularis tendon tears showed significantly lower HU in the central area of the affected side.

Conclusions

This study showed a decrease in bone mineralization density in the central glenoid in shoulders with rotator cuff tear. This change was observed in the case of larger cuff tears and subscapularis tendon tears. Our results help clarify the changes in stress distribution in the shoulder joint caused by symptomatic rotator cuff tears.

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Title: Bone mineralization changes of the glenoid in shoulders with symptomatic rotator cuff tear
Authors: Yohei Harada
Shin Yokoya
Yuji Akiyama
Yu Mochizuki
Mitsuo Ochi
Nobuo Adachi
Publication date: 01-11-2018
Publisher: Springer Berlin Heidelberg
Published in: International Orthopaedics / Issue 11/2018
Print ISSN: 0341-2695
Electronic ISSN: 1432-5195
DOI: https://doi.org/10.1007/s00264-018-4004-x

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Bone mineralization changes of the glenoid in shoulders with symptomatic rotator cuff tear

Abstract

Purpose

Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusions

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