6] UE Neural Entrapment Flashcards
Largest unprotected nerve and most important nerve for hand function
Ulnar nerve
Cubital tunnel borders
Medical epicondyle
Olecranon
FCU
How does cubital tunnel syndrome occur
Increased elbow flexion —> increases compression
Chronic/advanced symptoms of cubital tunnel syndrome
FCU loss/weak
FDP to ring/small o
Froments sign
Add pollicis affected
FPL works
Paper pinching
Chronic advanced Sx of CUTS is weak grip/pinch in what regions
Hypothenar Interossei Lumbricals FPB Add Poll
Wartenbergs sign
Little finger ABD
Special tests for ulnar nerve
Elbow flex test holding for 1 min
Pollocks test
Tinsel’s elbow (tapping ulnar nerve in trough of elbow)
ULTT
For cubital tunnel treatment, you would splint in less than ?
Less than 60 deg elbow flex
3 types of surgeries for cubital tunnel
Simple decompression
Medical epicondylectomy
Anterior transposition
Describe guyon’s canal
Handlebar syndrome • Loss of 3 & 4 lumbricals • loss of ½ FPB • Claw hand • Wartenberg’s sign- abd small finger
Sensory NOT affected
Guyons canal
Dorsal hand sensory affected
Cubital tunnel
Motor of FCU and FDP not affected
Guyons canal
Motor of FCU/FDP affected
Cubital tunnel
Radial nerve symptoms distal to the wrist only show
Sensory changes
Compression of radial nerve is at
ECRL and brachioradialis
What motion can cause radial nerve Sx
Repeated pronation/supination
Saturday night palsy
Entrapment radial groove of humerus
Signs and Sx of PIN
Weak finger extensors
Painful with resisted pro/supination and ext of middle finger
No sensation loss
Sign and symptoms:
Pain deep in forearm
No sensory or motor loss
rule out tennis elbow
Radial tunnel syndrome
High median nerve lesions can happen at
Axilla, upper arm, elbow
Repeated or resisted pronation
• Resistance to isolated flexion of PIP joint of long and ring fingers
Pronator syndrome of median nerve
Fracture: Radius midshaft
• Excessive exercise
• Idiopathic
• Direct trauma: Stab wound;Venipuncture
• Brachial neuritis (Neuralgic Amyotrophy)
• Anatomic anomalies
Anterior interosseous syndrome of median nerve
6 types of radial nerve injuries
Saturday Night Palsy • Crutch Palsy • Humeral Shaft Fx • Radial Tunnel Syndrome • Post Interosseous nerve • Dorsal Radial Sensory nerve(Wartenberg Syndrome)
