S11 - Upper nerve Conditions

Question 1

Nerve Injuries in the Upper Limb

• *Axillary nerve**
• What is it’s course?
• Motor role
• Sensory role
• Position of arm
• Which injury is the axillary nerve most at risk?

Answer 1

- Injury: Fracture/anterior shoulder dislocation

• Course: Around surgical neck of the humerus

Question 2

• *Radial nerve**
• What is it’s course?
• Motor role
• Sensory role
• Position of arm
• Which injury is the axillary nerve most at risk?

Answer 2

Course: Radial groove

Injury: Humerus and mid-shaft fracture

Question 3

• *Median nerve**
• What is it’s course?
• Motor role
• Sensory role
• Position of arm
• Which injury is the axillary nerve most at risk?

Answer 3

Injury: Lacteration to the wrist (low nerve injury), supracondylar fracture (upper nerve injury)

Upper nerve injury - Hand of Benediction (looks similar to ulnar claw, but action to get it is different)

Question 4

• *Musculocutaneous nerve**
• What is it’s course?
• Motor role
• Sensory role
• Position of arm
• Which injury is the axillary nerve most at risk?

Answer 4

Injury: Damage from deep penetration e.g. stabbing, also can be iatrogenic

Question 5

• *Ulnar nerve**
• What is it’s course?
• Motor role
• Sensory role
• Position of arm
• Which injury is the axillary nerve most at risk?

Answer 5

Injury Lacteration to the wrist - damage at Guyons canal (low nerve injury), damage at cubital fossa (high nerve injury)

Question 6

• *Summary of hand ‘positions’, with damage to the following nerves:**
• Median nerve
• Radial nerve
• Ulnar nerve

Answer 6