Test on Congenital Hand Contractures in Pediatrics

Question 1: Does surgical intervention for a clasped thumb commonly require addressing intrinsic muscle contracture, thumb skin deficiency, extrinsic tendon deficiencies, and stiff or abnormal joints?

A. Ano

B. Ne

Explanation: Surgery for a clasped thumb is usually required and must address each element of the problem, including intrinsic muscle contracture and deficiency, deficiency of the thumb skin and soft tissue envelope, extrinsic tendon deficiencies, and stiff and abnormal joints.

Question 2: According to the study materials, which statements about Flexor Digitorum Superficialis (FDS) transfer in pediatric hand surgery are correct?

A. When the FDS of the small finger is anomalous, a substitute donor for transfer is chosen.

B. The FDS from the adjacent ring finger can be harvested and passed into the small finger extensor apparatus.

C. The extensor indicis proprius is a described alternative donor for FDS transfer.

D. The extensor carpi ulnaris tendon is commonly used as a substitute donor for FDS transfer to the extensor apparatus.

Explanation: The study materials state, 'When the FDS of the small finger is anomalous, a substitute donor for transfer is chosen.' and 'The FDS from the adjacent ring finger can also be harvested and passed into the small finger extensor apparatus.' Additionally, 'The extensor indicis proprius is another alternative.' The extensor carpi ulnaris tendon is mentioned for transfer for wrist extension or as a tenodesis, not as a substitute donor for FDS transfer to the extensor apparatus of the fingers.

Question 3: Type II camptodactyly is the most common form and becomes apparent during infancy, affecting males and females equally.

A. Ano

B. Ne

Explanation: Type I camptodactyly is the most common form, becoming apparent during infancy and affecting males and females equally. Type II camptodactyly is not apparent until preadolescence.

Question 4: According to the study materials, which part of the finger is used for pin placement when applying the Digit Widget external fixator system?

A. Proximal phalanx

B. Middle phalanx

C. Distal phalanx

D. Metacarpal bone

Explanation: The study materials state: 'In the operating room, a drill guide is used to place two external fixator pins in the middle phalanx under the guidance of mini-fluoroscopy.'

Question 5: Windblown hand is characterized by radial deviation of the fingers.

A. Ano

B. Ne

Explanation: Congenital fixed ulnar deviation with intrinsic tightness of the fingers has been called windblown hand or windswept hand.