Brachial Plexus Injuries
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| Axillary nerve | fracture of surgical head of humerus or Dislocation of shoulder joint | show | Paralysis of deltoid muscle
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| show | fracture of the surgical head of the humerus or dislocation ot the shoulder joint | weakened lateral rotation of the arm; deltoid paralysis | teres minor muscle
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| Axillary nerve | show | "Patch sign"- loss of sensation on lateral side of upper arm | (blank)
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| Long thorasic nerve | stab wound or removal of lymph nodes during a mastectomy | show | serratus anterior muscle
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| show | stab wound or removal of lymph nodes during a mastectomy | "winged scapula" | serratus anterior muscle
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| Musculocutaneous nerve (upper trunk - C5-C6) | show | "waiter's tip", arm is medially rotated and pronated; Erb Duchenne | biceps brachii brachialis
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| Suprascapular nerve (upper trunk - C5-C6) | Violent stretch between head and shoulder | "waiter's tip", arm is medially rotated and pronated; Erb Duchenne | show 🗑
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| show | Violent stretch between head and shoulder | "waiter's tip", arm is medially rotated and pronated; Erb Duchenne | Teres minor muscle
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| Median nerve (lower trunk - C8-T1) | Sudden pull upward on arm | show | Muscles of the hand and wrist
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| Ulnar nerve (lower trunk - C8-T1) | Sudden pull upward on arm | show | Muscles of the hand and wrist
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| (posterior Cord- C5-T1) | show | Wrist drop | (blank)
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| show | Fractur of the humerus at the midshaft or badly fitted crutches | "Saturday night palsy", Can't extend wrist and digits and no supination. | paralysis of mms in extensor compartment of the forearm
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| Radial nerve (Posterior cord -C5-T1) | Fractur of the humerus at the midshaft or badly fitted crutches | sensory loss at posterior arm, posterior forearm, and lateral aspect of the dorsum of the arm "snuff box". | show 🗑
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| show | Fractur of the humerus at the midshaft or badly fitted crutches | "wrist drop" | paralysis of mms in extensor compartment of the forearm
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| Median nerve injury at elbow or axilla(Median cord- C5-T1) | show | lost thumb movement | paralysis of abductor pollicis brevis, opponens pollicis and flexor pollicis brevis
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| Median nerve injury at elbow or axilla(Median cord- C5-T1) | show | weakened flexion of the wrist, lost pronation and flexion of digits | mms in flexor compartment
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| Median nerve injury at elbow or axilla(Median cord- C5-T1) | show | "Pope's blessing" or "ape's sign", flattening of thenar eminence | mms in flexor compartment
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| Median nerve injury at elbow or axilla(Median cord- C5-T1) | Suracondylar fracture of the humerus | show | (blank)
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| show | Slashing of the wrist or Carpal tunnel syndrome | Normal flexion of wrist and digits, and normal pronation | No paralysis of mms of flexor compartment
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| show | Slashing of the wrist or Carpal tunnel syndrome | lost thumb movement | paralysis of abductor pollicis brevis, opponens pollicis and flexor pollicis brevis
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| Median nerve injury at the wrist (Median cord- C5-T1) | show | "Pope's blessing" or "ape's sign", flattening of thenar eminence | (blank)
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| Ulnar nerve injury at the elbow or axilla (median cord C8-T1) | fracture of the medial epicondyle of the humerus | show | paralysis of flexor carpi ulnaris mm
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| show | fracture of the medial epicondyle of the humerus | "claw hand", lost flesion of the ring and little finger at the DIP joint | paralysis of the medial part of flexor digitorum profundus mm
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| Ulnar nerve injury at the elbow or axilla (median cord C8-T1) | fracture of the medial epicondyle of the humerus | show | paralysis of the lumbricles 3 and 4
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| Ulnar nerve injury at the elbow or axilla (median cord C8-T1) | show | lost abduction and adduction of the fingers | paralysis of the palmer and dorsal interosseous mm
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| show | fracture of the medial epicondyle of the humerus | adduction of the thumb is lost | paralysis of the adductor pollicis mm
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| Ulnar nerve injury at the elbow or axilla (median cord C8-T1) | show | lost abduction, flexion and opposition of the little finger | paralysis of adductor pollicis mm
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| Ulnar nerve injury at the elbow or axilla (median cord C8-T1) | show | sensory loss on the palmer and dorsal aspects of the little finger and half of the ring finger | (blank)
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| Ulnar nerve injury at the wrist (median cord C8-T1) | show | No wrist deviation toward ulnar side and NO problems with felxion of of ring and little finger at DIP joint | No paralysis of flexor carpi ulnaris or medial part of the flexor digitorum profundus mm
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| Ulnar nerve injury at the wrist (median cord C8-T1) | Slashing the wrists | show | paralysis of the lumbricles 3 and 4
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| show | Slashing the wrists | adduction of the thumb is lost | paralysis of the adductor pollicis mm
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| Ulnar nerve injury at wrist (median cord C8-T1) | Slashing of the wrists | adduction of the thum is lost | show 🗑
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| Ulnar nerve injury at wrist (median cord C8-T1) | Slashing of the wrists | show | palmer and dorsal interosseous mms
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| Ulnar nerve injury at wrist (median cord C8-T1) | Slashing of the wrists | show | abductor digiti minimi, flexor digiti minimi and opponens digitiminimi mms
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| Ulnar nerve injury at wrist (median cord C8-T1) | Slashing of the wrists | palmer and dorsal aspects of the little finger and half the ring finger | show 🗑
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| show | Slashing of the wrists | "claw hand", yet not as severe as with lesion at the elbow | (blank)
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| Musculocutaneous nerve (lateral cord- C5-C7) | (blank) | Difficulty flexing elbow, and variable sensory loss | show 🗑
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