Question 1
Topic: Nerve & TendonDuring diagnostic elbow arthroscopy, which of the following nerves is at the greatest risk for injury:
Correct Answer & Explanation
. Radial nerve
Practice Set 1 of 266
This practice set contains high-yield board review questions covering key concepts in 7. Hand and Wrist. Each clinical scenario is designed to test your diagnostic and management skills relevant to this subspecialty.
During diagnostic elbow arthroscopy, which of the following nerves is at the greatest risk for injury:
. Radial nerve
. Anteromedial portal - ulnar nerve
During elbow arthroscopy, the proximal anteromedial portal is established approximately 2 cm proximal and 1 cm anterior to the medial epicondyle. Which nerve is at greatest risk of injury during the establishment of this portal?
. Medial antebrachial cutaneous nerve
The proximal anterolateral portal is frequently used as an initial viewing portal in elbow arthroscopy. It is established 2 cm proximal and 1 cm anterior to the lateral epicondyle. This portal places which of the following nerves at highest risk?
. Radial nerve
A 42-year-old mechanic presents with chronic lateral elbow pain radiating down the dorsal forearm. Pain is severe with resisted middle finger extension. Tenderness is noted 4 cm distal to the lateral epicondyle. What is the most likely site of nerve compression?
. Arcade of Frohse
When creating the standard anteromedial portal for elbow arthroscopy, the ulnar nerve is located at what approximate average distance from the correct portal placement?
. 25 mm
A 38-year-old female presents with aching pain in the volar proximal forearm and paresthesias in the thumb, index, and middle fingers. Symptoms are worsened by resisted forearm pronation, but not by wrist flexion. Which nerve is compressed, and at what structure?
. Median nerve at the pronator teres
When establishing the proximal anteromedial portal during elbow arthroscopy, the joint should be distended and the elbow flexed to 90 degrees. This specific portal places which of the following nerves at the greatest risk of injury?
. Medial antebrachial cutaneous nerve
A 50-year-old typist presents with medial elbow pain radiating to the ring and small fingers. Examination shows a positive Tinel's sign at the cubital tunnel and a positive Froment's sign. Which structure is the most common site of compression for this pathology?
. Osborne's ligament
A 42-year-old mechanic complains of chronic, aching pain over the dorsal aspect of the proximal forearm. Pain is exacerbated by resisted extension of the middle finger with the elbow extended, but there is no motor weakness. What is the most likely site of neural compression?
. Arcade of Frohse
A 28-year-old carpenter experiences deep, aching forearm pain that worsens with activity. He notes occasional numbness in his thumb, index, and middle fingers, but specifically denies night pain. Examination reveals pain with resisted forearm pronation. This presentation is characteristic of compression of which nerve?
. Median nerve
A 22-year-old collegiate baseball pitcher reports medial elbow pain during the late cocking and early acceleration phases of throwing. On physical examination, pain is reproduced when a valgus stress is applied to the elbow while rapidly extending it from 120 to 30 degrees of flexion. This test is most sensitive for evaluating which of the following structures?
. Flexor-pronator mass
During an elbow arthroscopy, the surgeon establishes the proximal anteromedial portal. This portal is typically placed 2 cm proximal and 1 cm anterior to the medial epicondyle. Which nerve is at greatest risk during the establishment of this portal if the scalpel is plunged too deeply?
. Medial antebrachial cutaneous nerve
A 38-year-old female presents with a 6-month history of lateral forearm pain that worsens with repetitive supination. She has no weakness in finger or wrist extension, but tenderness is maximal 4-5 cm distal to the lateral epicondyle. Which of the following is the most frequent site of nerve compression in this condition?
. Arcade of Frohse
During an in situ ulnar nerve decompression for severe cubital tunnel syndrome, an anomalous muscle is found crossing the ulnar nerve from the medial olecranon to the medial epicondyle. What is the name of this anomalous muscle?
. Anconeus epitrochlearis
When performing a two-incision distal biceps tendon repair, which of the following structures is at the highest risk of injury during the creation of the posterolateral approach through the extensor mass?
. Posterior interosseous nerve
A patient presents with volar forearm pain and an inability to form an 'OK' sign, demonstrating an extended thumb IP joint and index finger DIP joint. Sensation in the hand is strictly normal. Which structure is most likely compressed?
. Anterior interosseous nerve
During a single-incision anterior approach for a distal biceps tendon repair, aggressive lateral retraction of the soft tissues places which of the following nerves at the highest risk?
. Lateral antebrachial cutaneous nerve
Which of the following anatomic structures is the most common site of compression in radial tunnel syndrome?
. Arcade of Frohse
Following severe elbow trauma, a patient undergoes open contracture release via a lateral column approach. Which of the following nerves must be protected anteriorly when elevating the brachialis off the joint capsule?
. Radial nerve