Brachial plexus injury: Difference between revisions
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==Clinical Features== | ==Clinical Features== | ||
*Arm pain (constant, burning) | |||
*C5 injury: | |||
**weakness of deltoid and infraspinatus causes adducted, internally rotated shoulder | |||
*C6 injury: | |||
**weakness of biceps causes elbow extension | |||
*C7 injury: | |||
**weakness of extensor muscles causes wrist and digit flexion | |||
==Differential Diagnosis== | ==Differential Diagnosis== | ||
Revision as of 23:37, 14 September 2015
Background
- Anatomy:
- Roots:
- C4
- C5
- C6
- C7
- T1
- Trunks:
- Upper
- Middle
- Lower
- Cords:
- Lateral
- Posterior
- Medial
- Terminal Nerves:
- Musculocutaneous
- Median
- Axillary
- Radial
- Ulnar
- Roots:
- Injuries can be penetrating, compression, or closed traction:
- Supraclavicular (roots and trunks)
- Infraclavicular (cords and terminal nerves)
Clinical Features
- Arm pain (constant, burning)
- C5 injury:
- weakness of deltoid and infraspinatus causes adducted, internally rotated shoulder
- C6 injury:
- weakness of biceps causes elbow extension
- C7 injury:
- weakness of extensor muscles causes wrist and digit flexion