Background
- Motor nerve which originates from the C5/C6/C7 levels and innervates the serratus anterior
- Due to its long and relatively superficial course along the lateral aspect of the thorax it is more susceptible to injury
Clinical Features
- Deficits are related to the weakness of the serratus anterior and subsequent "winging" of the scapula
- To evaluate for winging have the patient press the affected arm against a wall; the inferior tip of the scapula should project from the thorax if positive
Differential Diagnosis
Parsonage-Turner syndrome
Evaluation
Workup
Diagnosis
Management
Disposition
See Also
External Links
References
