Dataset Information

Relationship between acromial morphological variation and subacromial impingement: A three-dimensional analysis.

ABSTRACT:

Purpose

To evaluate the association of acromial morphology and subacromial impingement.

Methods

Bilateral shoulder computed tomography was performed in 138 patients who received shoulder arthroscopy. Measured parameters included: acromial tilt (AT), modified acromial tilt (mAT), acromial slope (AS), acromiohumeral interval (AHI), lateral acromial angle (LAA), acromial index (AI), critical shoulder angle (CSA), acromial anterior protrusion (AAP), and acromial inferior protrusion (AIP). Acromial morphological characteristics were compared between groups. Side-to-side differences were assessed between affected and non-affected shoulders. Intra- and inter-observer agreements for each parameter were calculated.

Results

AT (25.90 vs. 29.41°), mAT (18.88 vs. 22.64°), and AHI (5.46 vs. 6.47 mm) were significantly smaller in impinged patients. The impingement group demonstrated significantly larger AI (63.50 vs. 59.84%), CSA (31.78 vs. 28.74°), AAP (7.13 vs. 5.32 mm), and AIP (5.51 vs. 4.04 mm). Regarding side-to-side comparison, the acromial morphology was significantly different between the affected and non-affected shoulders in impinged patients, while the difference was slight and insignificant in control patients. All, except AS and LAA, measured parameters demonstrated good intra- and inter-observer agreements.

Conclusions

Three-dimensional reconstructed CT scan is a reliable method to measure shoulder morphology. The acromial morphological variation is related with sub acromial impingement, however, the causal relationship of them should be further explored.

SUBMITTER: Li X

PROVIDER: S-EPMC5404845 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature

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Publications

Relationship between acromial morphological variation and subacromial impingement: A three-dimensional analysis.

Li Xinyu X Xu Wei W Hu Ning N Liang Xi X Huang Wei W Jiang Dianming D Chen Hong H

PloS one 20170425 4

<h4>Purpose</h4>To evaluate the association of acromial morphology and subacromial impingement.<h4>Methods</h4>Bilateral shoulder computed tomography was performed in 138 patients who received shoulder arthroscopy. Measured parameters included: acromial tilt (AT), modified acromial tilt (mAT), acromial slope (AS), acromiohumeral interval (AHI), lateral acromial angle (LAA), acromial index (AI), critical shoulder angle (CSA), acromial anterior protrusion (AAP), and acromial inferior protrusion (A ...[more]

PMID: 28441418

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Dataset Information

Relationship between acromial morphological variation and subacromial impingement: A three-dimensional analysis.

Purpose

Methods

Results

Conclusions

Publications

Relationship between acromial morphological variation and subacromial impingement: A three-dimensional analysis.

Similar Datasets

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