Infraglenoid Muscle as an Anatomic Variation of the Anterior Rotator Cuff

CASE: We report a patient with osteoarthritis of the shoulder joint who underwent reverse shoulder arthroplasty and showed anatomical variation in the subscapularis muscle (SM). A variation of the rotator cuff originating from the anteroinferior aspect of the glenoid was separated from the SM by a s...

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Detalles Bibliográficos
Autores principales: Lee, Gwan Bum, Kholinne, Erica, Kwak, Jae-Man, Sun, Yucheng, Alhazmi, Adel Mohammaed, Jeon, In-Ho
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi 2019
Materias:
Case Report
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6387716/
https://www.ncbi.nlm.nih.gov/pubmed/30881722
http://dx.doi.org/10.1155/2019/6938252
Descripción
Sumario:CASE: We report a patient with osteoarthritis of the shoulder joint who underwent reverse shoulder arthroplasty and showed anatomical variation in the subscapularis muscle (SM). A variation of the rotator cuff originating from the anteroinferior aspect of the glenoid was separated from the SM by a septum and was named infraglenoid muscle (IGM). CONCLUSION: We suggest that the IGM may serve as an additional dynamic stabilizer for external rotation. Studying this particular muscular variation would lead to better understanding of the anatomical structures around the glenoid cavity.

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