Nerve & Tendon MCQs

A 45-year-old mechanic presents with a 6-month history of numbness and tingling in his ring and small fingers, which worsens when he keeps his elbow flexed during telephone calls. Examination shows a strongly positive Tinel's sign over the posteromedial elbow and a positive Froment's sign. Electromyography confirms severe ulnar neuropathy isolated to the elbow. During a surgical ulnar nerve release, the primary site of compression is identified between the humeral and ulnar heads of the flexor carpi ulnaris (FCU). What anatomical structure forms the roof of this specific compression site?

A 28-year-old competitive weightlifter complains of painful snapping on the medial aspect of his dominant right elbow when performing triceps extensions. Physical examination reveals a palpable snap over the medial epicondyle during active elbow flexion and extension. Dynamic ultrasound confirms the diagnosis of snapping triceps syndrome. What is the most common anatomical variant associated with this condition?

A 58-year-old woman with a history of poorly controlled type 2 diabetes mellitus presents with a locked trigger finger of the right ring finger. She has had no prior treatments. Which of the following statements regarding the management of trigger finger in diabetic patients is most accurate?

During a routine in situ ulnar nerve decompression for cubital tunnel syndrome, the surgeon must systematically evaluate and release potential sites of nerve compression. Which of the following structures represents the most proximal potential site of ulnar nerve entrapment?

A 48-year-old typist presents with numbness in his small and ring fingers. Examination reveals a positive Tinel's sign at the cubital tunnel and weakness in finger abduction. EMG confirms severe ulnar neuropathy at the elbow. During a submuscular ulnar nerve transposition, which of the following fascial structures represents a potential site of nerve compression that MUST be released to prevent postoperative failure?

A 45-year-old carpenter presents with numbness and tingling in his small and ring fingers, which is exacerbated by prolonged elbow flexion. Electrodiagnostic studies confirm isolated ulnar neuropathy at the elbow. Which of the following is the most common site of ulnar nerve compression in this condition?

A 40-year-old mechanic complains of recurrent numbness and tingling in his small and ring fingers, 6 months after an in situ open ulnar nerve decompression at the elbow. On examination, the ulnar nerve is palpated subluxating over the medial epicondyle during elbow flexion.

What is the best surgical option for this patient?

An elite collegiate baseball pitcher undergoes ulnar collateral ligament (UCL) reconstruction using a docking technique. Preoperatively, he had no signs or symptoms of ulnar neuropathy, and his EMG/NCS were normal. During the procedure, what is the most universally recommended management of the ulnar nerve?

A 34-year-old male presents with persistent cubital tunnel syndrome despite 6 months of conservative management. He has a history of a childhood supracondylar humerus fracture and presents with a significant cubitus valgus deformity. EMG confirms severe ulnar neuropathy at the elbow. Which of the following surgical interventions is most appropriate?

A 45-year-old carpenter complains of progressive numbness in the small and ring fingers of his right hand, along with weakness in grip strength. Examination shows intrinsic muscle wasting and a positive Tinel's sign at the cubital tunnel. EMG reveals severe ulnar neuropathy at the elbow. During surgical exploration for ulnar nerve decompression, the ulnar nerve is observed to subluxate anteriorly over the medial epicondyle during elbow flexion. Which of the following is the most appropriate surgical procedure?

A 42-year-old man undergoes a single-incision anterior approach for repair of an acute distal biceps tendon rupture. Postoperatively, he notes numbness along the lateral aspect of his forearm. Which nerve is most likely injured?

A 38-year-old bodybuilder undergoes a single-incision anterior approach repair for a distal biceps tendon rupture. Postoperatively, he complains of numbness and tingling along the lateral aspect of his forearm. Which nerve was most likely injured during the procedure?

A 50-year-old male presents with weakness of pinch grip and numbness in the small finger, extending to the dorsal ulnar aspect of the hand. Examination reveals weakness of the first dorsal interosseous muscle and a positive Froment sign. What is the most likely diagnosis?

A 45-year-old typist complains of numbness in his ring and small fingers, and weakness in his hand. Examination reveals a positive Froment's sign when attempting to pinch a piece of paper. Which muscle is compensating for the primary motor deficit during this maneuver?

A 45-year-old carpenter presents with persistent numbness in his small and ring fingers, accompanied by intrinsic hand muscle weakness. He is diagnosed with severe cubital tunnel syndrome. During surgical decompression, which structure represents the most common site of ulnar nerve compression at the elbow?

A 22-year-old rugby player sustained a hyperextension injury to his ring finger while grasping an opponent's jersey. He cannot actively flex the distal interphalangeal (DIP) joint. Examination reveals tenderness localized to the palm. According to the Leddy and Packer classification, what is the appropriate management for this injury?

A 40-year-old carpenter presents with numbness and tingling in his small and ring fingers. He also notes clumsiness when handling small nails. Nerve conduction studies confirm ulnar neuropathy at the elbow. Which of the following is the most common site of ulnar nerve compression in this condition?

A cyclist presents with isolated weakness of the dorsal interossei and adductor pollicis, with completely normal sensation in the small and ring fingers. A lesion in which anatomical zone of Guyon's canal is most likely responsible?

A patient presents with median nerve compression symptoms proximal to the elbow. Imaging reveals a supracondylar process of the humerus. Which anatomical structure typically connects this process to the medial epicondyle and compresses the median nerve?

When performing a volar release for de Quervain's tenosynovitis, care must be taken to avoid injury to sensory nerve branches. Which nerve is most at risk during the surgical release of the first dorsal compartment?