Acromion Morphology of Patients with Rotator Cuff Disease in Standard AP Shoulder Radiograph in Hospital Sultanah Bahiyah and Hospital Kuala Lumpur
https://doi.org/10.5704/MOJ.2211.009
- Author:
Leong YC
1
;
Yeoh CW
2
;
Azman MI
1
;
Juhari MS
2
;
Siti HT
1
Author Information
1. Department of Orthopaedics, Hospital Kuala Lumpur, Kuala Lumpur, Malaysia
2. Department of Orthopaedics, Hospital Sultanah Bahiyah, Alor Setar, Malaysia
- Publication Type:Journal Article
- Keywords:
acromion morphology, radiograph, rotator cuff tear
- From:Malaysian Orthopaedic Journal
2022;16(No.3):50-54
- CountryMalaysia
- Language:English
-
Abstract:
Introduction: Rotator cuff pathology is commonly
attributed to acromion morphology that is demonstrable in
standard AP shoulder radiographs by measuring the critical
shoulder angle (CSA), the lateral acromial angle (LAA), and
the acromial index (AI). However, these parameters vary
among races and countries. Therefore, our study aimed to get
the local data on acromion morphology in patients with
rotator cuff disease.
Materials and methods: MRI shoulder reports between
January 2012 and June 2018 were reviewed. The study group
consisted of 47 patients with rotator cuff injury with a partial
or complete tear, and a control group of 37 patients with
tendinitis or osteoarthritis and intact rotator cuffs. The CSA,
LAA, and AI of both groups were measured on the
anteroposterior shoulder radiograph. The risk factors for
both groups and the acromion morphology were recorded.
Results: The CSA for the rotator cuff tear and the control
group was 39.08° and 38.28°, LAA was 72.57 ° and 73.51°,
and AI was 0.79 and 0.75. The acromion morphology
differed in terms of gender, and only LAA was different
among the different ethnic groups. There was a negative
correlation between age and CSA, age and AI, LAA and
CSA, LAA and AI, but a positive correlation between AI and
CSA.
Conclusion: The CSA for rotator cuff tear patients in our
population was 39.08°, LAA was 72.57°, and AI was 0.79.
The acromion morphology was significantly influenced by
age and gender.