Distorsion of the hand

Question 1

Ulnar claw

Answer 1

Hook of hamate (falling onto outstretched hand)
Loss of medial lumbricals,
can’t extend 4th and 5th digits

Question 2

Medial claw

Answer 2

Dislocated lunate
Loss of lateral lumbricles,
can’t extend 2nd and 3rd digits

Question 3

Pope’s blessing

Answer 3

Proximal median nerve lesion
Loss of lateral finger flexion and thumb opposition

When asked to make fist, 2nd and 3rd remain extended and thumb unopposed.

Question 4

Ape hand

Answer 4

Proximal median nerve lesion
Loss of opponens pollicis
thus unopposable thumb

Question 5

Klumpke’s total claw

Answer 5

Lesion of lower trunk (C8, T1)
Loss of funciton of all lumbricles,
forearm finger flexors and finger extensors(by radial) unopposed

Clawing of all digits.