A very rare case of an accessory subscapularis muscle and its potential clinical significance
| Autor: | Michał Polguj, Łukasz Olewnik, Piotr Karauda, R. Shane Tubbs, Nicol Zielinska |
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| Rok vydání: | 2020 |
| Předmět: |
Rotator cuff
medicine.medical_specialty Compression syndrome Lower subscapular nerve Accessory subscapularis muscle Coracoid process Pathology and Forensic Medicine medicine.nerve 03 medical and health sciences 0302 clinical medicine Scapula Anatomic Variations medicine Humans Radiology Nuclear Medicine and imaging 0303 health sciences business.industry Subscapularis muscle Anatomic Variation 030229 sport sciences Anatomy Middle Aged musculoskeletal system Subscapularis tendon Quadrangular space syndrome Tendon medicine.anatomical_structure 030301 anatomy & morphology Posterior cord Orthopedic surgery Female Surgery business |
| Zdroj: | Surgical and Radiologic Anatomy |
| ISSN: | 1279-8517 0930-1038 |
| DOI: | 10.1007/s00276-020-02531-6 |
| Popis: | The subscapularis muscle is the largest muscle of the rotator cuff and its main function is internal rotation. It is morphologically variable in both point of origin and insertion. The presence of an accessory subscapularis muscle can lead to brachial plexus neuropathy. This report presents a very rare accessory subscapularis muscle originating from two distinct bands on the subscapularis and teres major muscles. The insertion was divided among four tendons. The fourth tendon is bifurcated. One of these was connected to the tendon of the subscapularis muscle and the other three inserted into the base of the coracoid process of the scapula. This anomalous muscle has the potential to entrap the nerves of the posterior cord such as the axillary, lower subscapular, and thoracodorsal nerves. |
| Databáze: | OpenAIRE |
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