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Axilla_Brach. plexus
Gross II - Zumpano fall 2013
| Question | Answer |
|---|---|
| Name the upper trunk brachial plexus injuries | Erb Palsy, Duchenne-Erb palsy, upper radicular syndrome or "waiters tip position" |
| Upper trunk injuries are produced by actions that do what? | Increase angle between neck and shoulder |
| Upper trunk injuries cause a stretch/pull/tear in what nerve roots? | C5, C6 or upper trunk |
| How does a patient present with an upper trunk c5,c6 injury? | (1) arm adducted and medially rotated (suprascapular, upper & lower subscapular, axillary n.) (2) forearm extended (musculocutaneous n.) (3) palm facing backward & upward (radial n vs median n) |
| What are lower trunk injuries called? | Radicular pain syndrome, Klumpkes palsy or Dejerine-Klumpkes paralysis |
| Lower trunk injuries result when an upper limb is forcefully pulled in what direction? | Upward that increases the angle btw humerus and thorax |
| Lower trunk injuries cause a stretch, tear or pull of what nerve roots? | C8 and T1 or lower trunk |
| How does a patient present with an upper trunk (C8, T1) injury? | (1) clawhand (sm muscles in hand innervated by ulnar and median n paralyzed) (2) abduction or radial deviation (flexor carpi ulnaris and half of flex digitoxin profundus paralyzed) (3) loss of sensation long medial arm and forearm and medial 2 fingers |
| What is scalene syndrome? | Hyperbolic scalene ant and medius that engrams and compresses roots off the brachial plexus |
| How does scalene syndrome present? | Same as upper trunk injury but different mode of treatment. |
| What is cervical rib syndrome? | Compression and entrapment of C8 and T1 from cervical rib |
| What symptoms are found with cervical rib syndrome? | Same as lower trunk...clawhand and abduction of wrist during wrist flexion |
| Hyperabduction syndrome causes a compression in what location? | Coracopectoral tunnel...between foraging process and pec minor |
| Thoracic outlet syndrome causes compression to what? | Lower trunk |
| What gets compressed/entraped in Thoracic outlet syndrome? | (1) costoclavicular area (entrapment of lower trunk btw 1st rib and clavicle) (2) pectoralis minor and coracoid process "Coracopectoral tunnel" (3) scalene entrapment |
Created by:
mrw2013
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