Practice Set 5 of 53
This practice set contains high-yield board review questions covering key concepts in Nerve & Tendon. Each clinical scenario is designed to test your diagnostic and management skills relevant to this subspecialty.
Stenosing tenosynovitis (trigger finger) most commonly results from thickening and nodule formation associated with which of the following pulleys?
. A1 pulley
During a single-incision anterior approach for the repair of an acute distal biceps tendon rupture, which of the following nerves is at the highest risk of iatrogenic injury?
. Lateral antebrachial cutaneous nerve
A 6-year-old boy falls on an outstretched hand and sustains a fracture. Radiographs and clinical presentation are consistent with a posterolaterally displaced extension-type supracondylar humerus fracture.
Which of the following nerve injuries is most commonly associated with this specific direction of displacement?
. Median nerve (Anterior interosseous nerve branch)
A 45-year-old carpenter with chronic medial elbow pain that worsens with resisted forearm pronation and wrist flexion has failed 6 months of conservative treatment. During surgical debridement of the common flexor origin, which of the following nerves is most at risk of iatrogenic injury?
. Ulnar nerve
A patient with long-standing cubital tunnel syndrome presents with weakness in their pinch grip. During evaluation, the patient forcefully flexes the interphalangeal joint of the thumb when attempting to hold a piece of paper between the thumb and index finger. What is the name of this clinical sign?
. Froment sign
A 25-year-old male presents with a complete C5-C6 root avulsion following a motorcycle accident 3 months ago. Clinical examination demonstrates absent elbow flexion and shoulder abduction, with preserved hand function. What is the most appropriate nerve transfer to restore active elbow flexion in this patient?
. Ulnar nerve fascicle to the biceps motor branch (Oberlin transfer)
During the clinical and electrodiagnostic evaluation of a patient with a traumatic closed brachial plexus injury, which of the following findings is most strongly indicative of a preganglionic root avulsion rather than a postganglionic lesion?
. Normal sensory nerve action potentials (SNAPs) in a clinically anesthetic dermatome
Treatment of a type I mallet finger is typically closed. This involves:
. Splinting of the affected DIP joint in extension
Type I mallet finger injuries must be immobilized constantly for a minimum of:
. 8 weeks
. Type I
. Type II and type III
After placing a type I mallet finger in a splint at the initial visit, next follow- up should be:
. In 1 week
. Tinel's sign
The Martin-Gruber anastomosis is a well-described anatomical variant in the upper extremity. It involves the anomalous crossing of nerve fibers in the forearm from the:
. Median nerve (or anterior interosseous nerve) to the Ulnar nerve
A 6-year-old boy sustains a significantly displaced extension-type supracondylar humerus fracture. On examination, he has weakness of thumb interphalangeal joint flexion and index finger distal interphalangeal joint flexion. Which nerve is injured?
. Anterior interosseous nerve
A cyclist presents with numbness in the ring and small fingers along with weakness in finger abduction. Sensation over the dorsal ulnar aspect of the hand is preserved. Where is the most likely site of ulnar nerve compression?
. Zone 1 of Guyon's canal
. Type II
A 50-year-old diabetic female complains of locking and pain at the base of her right thumb. Examination reveals a palpable nodule over the palmar aspect of the metacarpophalangeal joint. The pathology of this condition primarily involves thickening of which specific pulley?
. A1 pulley
A typical presentation of thoracic outlet syndrome is likely to include:
. Venous obstruction presenting as edema and cyanosis progress to subclavian or axillary vein thrombosis.
. Electromyography/nerve conduction velocity is usually normal in pronator syndrome.