Axillary neuropathy: Difference between revisions
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==Background== | ==Background== | ||
The axillary nerve supplies innervation to: | *The axillary nerve supplies innervation to: | ||
*Deltoid | **Deltoid | ||
*Teres minor | **Teres minor | ||
*Long head of triceps | **Long head of triceps | ||
*Skin over lateral shoulder | **Skin over lateral shoulder | ||
Injury associated with [[ | *Injury associated with [[anterior shoulder dislocation]], [[inferior shoulder dislocation]], and [[proximal humerus fracture]] | ||
==Clinical Features== | ==Clinical Features== | ||
* | *Weak arm abduction (from 15 to 90 degrees) | ||
*Decreased sensation | *Weak shoulder flexion, extension and rotation of shoulder | ||
*Decreased sensation of upper lateral arm (over deltoid) | |||
==Differential Diagnosis== | ==Differential Diagnosis== | ||
Revision as of 15:30, 3 April 2017
Background
- The axillary nerve supplies innervation to:
- Deltoid
- Teres minor
- Long head of triceps
- Skin over lateral shoulder
- Injury associated with anterior shoulder dislocation, inferior shoulder dislocation, and proximal humerus fracture
Clinical Features
- Weak arm abduction (from 15 to 90 degrees)
- Weak shoulder flexion, extension and rotation of shoulder
- Decreased sensation of upper lateral arm (over deltoid)
Differential Diagnosis
Upper extremity peripheral nerve syndromes
Median Nerve Syndromes
Ulnar Nerve Syndromes
Radial Nerve Syndromes
- Radial neuropathy at the spiral groove (ie. "Saturday night palsy")
- Posterior interosseous neuropathy
Proximal Neuropathies
- Suprascapular neuropathy
- Long thoracic neuropathy
- Axillary neuropathy
- Spinal accessory neuropathy
- Musculocutaneous neuropathy