Peripheral neuropathy Flashcards
Clinical findings of musculocutaneous neuropathy
C5/C6/C7
Numb lateral forearm
Weak elbow flexion
Weak forearm supination
Absent biceps reflex
Biceps wasting
Clinical findings of axillary neuropathy
C5/C6
Numb sergeant’s patch
Weak shoulder abduction from 15-90’
Weak shoulder flexion
Weak shoulder extension
Weak shoulder external rotation
Wasting of deltoid
Clinical findings of radial neuropathy
C5/C6/C7/C8/T1
Numb posterior arm and forearm
Numb radial distribution of hand
Weak elbow extension
Weak wrist extension
Weak finger MCPJ extension
Absent triceps reflex
Absent supinator reflex
Wasting of triceps and posterior compartment of forearm
Clinical findings of median neuropathy
C5/C6/C7/C8/T1
Numb thenar eminance
Numb median distribution of hand
- lateral 2/3 palm of hand
- lamer aspect lateral 3 1/2 fingers
- distal dorsal aspect of lateral 3 1/2 fingers
Weak forearm pronation
Weak wrist flexion
Wrist wrist abduction
Weak finger flexion except ring and little finger
Weak grip strength and opposition
Weak thumb abduction
Wasting of anterior forearm and thenar eminence
Hand of Benediction
Motor components of radial nerve
Posterior compartment of arm
- triceps brachii
Posterior compartment of forearm
- wrist extensors
- finger extensors
- brachioradialis
- supinator
Motor components of median nerve
Anterior compartment of forearm EXCEPT flexor carpi ulnaris and medial two parts of flexor digitorum profundus
- wrist flexors
- finger flexors
- pronator teres + quadratus
LOAF muscles
- lateral two lumbricals
- opponens pollicis
- abductor pollicus brevis
- flexor pollicus brevis
Clinical findings of ulnar neuropathy
C8/T1
Numb hypothenar eminance
Numb ulnar distribution of hand
Weak wrist flexion
Weak wrist adduction
Weak flexion of ring and little finger at MCPJS and DIPJs, and weak extension at IPJs
Weak finger abduction, adduction and opposition
Wasting of hypothenar eminence and intrinsic muscle of hands
Claw hand
Motor components of ulnar nerve
Two muscles of anterior compartment of forearm
- flexor carpi ulnaris
- medial two parts of flexor digitorum profundus
HILA muscles
- Hypothenar eminence
- INterossei
- Lumbricals
- Adductor pollicus
Sensory components of radial nerve
Lower posterior arm
Posterior forearm
Lateral 2/3 dorsum of hand
Proximal dorsal aspect of lateral 3 1/2 fingers
Sensory components of medial nerve
Thenar eminence
Lateral 2/3 palm of hand
Palmar aspect lateral 3 1/2 fingers
Distal dorsal aspect of lateral 3 1/2 fingers
Sensory components of ulnar nerve
Hypothenar eminence
Medial 1/3 palm of hand
Palmar aspect medial 1 1/2 fingers
Whole dorsal aspect of medial 1 1/2 fingers
Medial 1/3 dorsum of hand
C5 joint and critical action
Controls shoulder joint
Elbow flexion
C6 joint and critical action
Controls elbow joint
Wrist extension
C7 joint and critical action
Controls wrist
Elbow extension
C8 joint and critical action
Finger flexion and extension
Clinical findings of sciatic neuropathy
Loss of power of all muscles below knee resulting in foot drop
Weak knee flexion
Loss of sensation below knee
Loss of ankle jerk and plantar response
Clinical findings of tibial neuropathy
Loss of sensation to majority of sole of foot
Loss of plantar flexion and foot inversion
Posterior aspect of division of sciatic
Clinical findings of femoral neuropathy
Weakness of knee extension
Hip flexion weakness
Sensation loss of medial aspect of tight
Loss of knee jerk
Clinical findings of common peroneal neuropathy
Loss of dorsiflexion, eversion of foot
Loss of sensation in lateral aspect of leg and dorsum of foot
Hip flexion nerve root and peripheral nerve
L2-L3
Femoral
Hip extension nerve root and peripheral nerve
L4-L5
Inferior gluteal
Knee extension nerve root and peripheral nerve
L3-L4
Femoral
Knee flexion nerve root and peripheral nerve
L5-S1
Sciatic
Ankle dorsiflexion nerve root and peripheral nerve
L4-L5
Peroneal
Ankle plantar flexion nerve root and peripheral nerve
S1-S2
Tibial
Foot inversion nerve root and peripheral nerve
L4-L5
Tibial
Foot eversion nerve root and peripheral nerve
L5-S1
Peroneal
Knee jerk
L3-L4
Femoral nerve
Ankle jerk
S1-S2
Tibial nerve
Features of L4,L5 foot drop
Weak eversion and inversion
Ankle jerk present
Features of sciatic foot drop
Weak eversion and inversion
Ankle jerk absent
Features of common peroneal nerve foot drop
Weak eversion
Inversion intact
Ankle jerk present
