Upper limb nerve injuries, Cheat Sheet of Anatomy

These notes are for upper limb nerve injuries

Typology: Cheat Sheet

2025/2026

Available from 01/10/2026

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COMMON INJURIES
*Wrist drop Radial nerve*
*Foot drop Either common peroneal nerve or sciatic nerve*
*Claw hand Ulnar nerve*
*Paraesthesia of thumb, index and middle finger Median nerve*
*Numbness on superior aspect of upper arm just below shoulder joint
Axillary nerve*
*Fibular neck fracture Common peroneal nerve*
*Femur neck fracture or Acetabular fractures Sciatic nerve*
*Fracture of humeral shaft Likely Radial nerve*
*Fracture of humeral Neck Likely Axillary nerve*
*Monteggia fracture Radial nerve*
*Paraesthesia and impaired sensation in both hands (glove distribution)
Peripheral neuropathy*
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COMMON INJURIES

Wrist drop Radial nerve Foot drop Either common peroneal nerve or sciatic nerve Claw hand Ulnar nerve Paraesthesia of thumb, index and middle finger Median nerve Numbness on superior aspect of upper arm just below shoulder joint Axillary nerve Fibular neck fracture Common peroneal nerve Femur neck fracture or Acetabular fractures Sciatic nerve Fracture of humeral shaft Likely Radial nerve Fracture of humeral Neck Likely Axillary nerve Monteggia fracture Radial nerve *Paraesthesia and impaired sensation in both hands (glove distribution)

- Peripheral neuropathy*

Important ‼️ upper limb clinicals: 1)Wrist drop Radial Nerve damage. 2)Saturday Night palsy Compression of radial nerve. 3)Winging of Scapula long thoracic nerve damage. 4)Flat shoulder Axillary nerve damage. 5)Dropped Shoulder Accessory Spinal nerve damage i.e paralysis of trapezius. 6)Claw hand lesion to Ulnar Nerve at wrist. 7)True Claw hand lesion to Median+ ulnar nerve. 8)Tardy ulnar nerve palsy Associated with lateral condyle of humerus fractures at elbow. 9)Hand of Benediction Median nerve injury at wrist or elbow. 10)Carpal tunnel Syndrome Compression of Median Nerve. 11)Erbs palsy ➡️ Upper trunk of Brachial plexus injury. 12)Klumpkes Palsy➡️ lower trunk of brachial plexus injury.