Nerve injuries Flashcards
Long thoracic nerve
Medial winging of the scapula
Median nerve injury
Carpal tunnel syndrome. Tingling and numbness. Weakness and pain in the thumb, index, middle and half of the ring finger.
Ulnar nerve injury at elbow
Cubital tunnel syndrome. Numbness or pain in the elbow, hand, wrist or fingers. Claw hand and radial deviation.
Compression of ulnar nerve below the elbow
Claw hand. Wasting and paralysis of intrinsic hand muscles (except lateral two lumbricals) wasting and paralysis of the hypothenar muscles
Posterior interosseous nerve
(Enters the extensor compartment through the supinator muscle at the Arcade of Frohse ) Purely a motor nerve. Stops extension of the fingers but NOT the wrist
Anterior interosseous nerve injury
Unable to perform the OK sign and inability to pronate
Radial nerve
Wrist drop and loss of finger extension
Axillary nerve
Loss of deltoid area sensation. Weakness of shoulder abduction, atrophy of the deltoid and numbness in the deltoid region
Femoral nerve
Loss of extension of the knee
Posterior tibial nerve
Typically damaged by the tarsal tunnel/flexor retinaculum. Causes tarsal tunnel syndrome causing pain and numbness or the plantar aspect of the heal
Deep peroneal nerve injury
Foot drop
Third nerve injury
(Occulomotor) Eye deviated down and out, ptosis and dilated pupil
Fourth nerve injury
(Trochlear) Vertical diplopia
Sixth nerve injury
(Abducens) Defective abduction and horizontal diplopia
Seventh nerve injury
(Facial) Flaccid paralysis of the face, loss of corneal reflex, loss of taste and hyperacusis
Ninth nerve injury
(Glossopharyngeal) hypersensitive carotid sinus reflex. Loss of gag reflex (afferent)
Tenth nerve injury
(Vagus) Uvula deviates away from side of lesion. Loss of gag reflex (efferent)
Eleventh nerve injury
(Accessory) Weakness turning head to contralateral side
Twelfth nerve injury
(Hypoglossal) Tongue deviates to side of lesion
Common peroneal nerve lesion
Foot drop is main symptom others include. Weakness of foot dorsiflexion, weakness of foot eversion, weakness of extensor hallucis longus, sensory loss over the dorsum of the foot and the lower lateral part of the leg, wasting of the anterior tibial and peroneal muscles
Medial winging of the scapula
Long thoracic nerve
Carpal tunnel syndrome. Tingling and numbness. Weakness and pain in the thumb, index, middle and half of the ring finger.
Median nerve injury
Cubital tunnel syndrome. Numbness or pain in the elbow, hand, wrist or fingers. Claw hand and radial deviation.
Ulnar nerve injury at elbow
Claw hand. Wasting and paralysis of intrinsic hand muscles (except lateral two lumbricals) wasting and paralysis of the hypothenar muscles
Compression of ulnar nerve below the elbow