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Year : 2022  |  Volume : 10  |  Issue : 2  |  Page : 92-95

A study of association between acromion types and shoulder pathology

Department of Orthopaedics, Sri Devaraj Urs Medical College – Sri Devaraj Urs Academy of Higher Education and Research (SDUAHER), Kolar, Karnataka, India

Correspondence Address:
Dr. Prabhu Ethiraj
Department of Orthopaedics, Sri Devaraj Urs Academy of Higher Education and Research (SDUAHER), Kolar, Karnataka
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/JOASP.JOASP_53_20

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INTRODUCTION: Shoulder impingement and rotator cuff tear are commonly seen in shoulder pathology. Pathological changes in the soft tissue around the shoulder can be due to intrinsic degenerative in tendons or extrinsic mechanical compression due to acromion types. Changes in acromion morphology have been postulated, which might be one of the causes of impingement syndrome and rotator cuff tears. But few study results have shown that role of the acromion is doubtful. Our primary objective was to determine acromion types and their prevalence rate with shoulder pathology. MATERIALS AND METHODS: Our study was a prospective study. Eighty-five patients who met the inclusion criteria were included in the study. According to Bigliani et al., acromion types were classified as type 1 acromion that has a flat undersurface, type 2 acromion that has a curved undersurface, and type 3 acromion that has a hooked undersurface on supraspinatous outlet view radiographs. Types of acromion were correlated with shoulder pathology (shoulder impingement and rotator cuff tear). RESULTS: Out of 85 patients with shoulder pathology, 43 patients had impingement shoulder syndrome and 42 patients had rotator cuff tear. Mean age for the impingement shoulder syndrome group was 39.6 years and for the rotator cuff tear group it was 58.6 years. Overall right shoulder is affected more as compared with the left shoulder. Type 2 acromion was seen in 64.7% study population, type 1 was seen in 23.5%, and type 3 was seen in 11.8%. CONCLUSION: In our study, type 2 acromion is more frequently seen in shoulder pathology involving rotator cuff tear and impingement syndrome.

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