QuestionSBA
QuestionChoice
This is a description of the ulnar claw hand. Froment's sign will also be positive as a patient with ulnar nerve damage has to use flexor pollicis longus and brevis to grip a piece of paper between their thumb and index finger due to paralysis of the adductor pollicis.
10001001
a
Extension of the metacarpophalangeal joint with flexion of the interphalangeal joints in the ring and little finger
QuestionChoice
This is a description of wrist drop, the result of radial nerve injury in which muscles of the extensor compartment of the forearm are paralysed, often as a result of compression or penetrating trauma.
10001003
c
Inability to extend carpometacarpal, metacarpophalangeal or interphalangeal joints in each finger
QuestionChoice
This is a description of Klumpke's palsy, the result of inferior brachial plexus root T1 and C8 avulsion when the arm is abducted and pulled superiorly, which sometimes occurs during childbirth.
10001002
b
Extension of the metacarpophalangeal joint with flexion of the interphalangeal joints in each finger
QuestionChoice
This is a description of Erb's palsy, the result of superior brachial plexus root C5 and C6 avulsion when the arm is adducted and pushed inferiorly. This typically occurs in babies who have difficult deliveries (usually due to shoulder dystocia or fetal macrosomia).

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10001005
e
Adduction and internal rotation of the shoulder, extension of the elbow, pronation of the forearm and flexion of the wrist
QuestionChoice
This is a description of the sign of Benediction which is a result of median nerve injury. It is usually accompanied by thenar muscle wasting.
10001004
d
Inability to flex the thumb, index or middle finger
Concept
Chapter
2693
3866
Ulnar nerve injuries
Topic
145
Orthopaedics
12747
Which of the following describes the motor signs seen upon lower ulnar nerve severance?
a