Surgical Anatomy & Approaches MCQs

A surgeon is performing an open Latarjet procedure. Which nerve is most at risk during the coracoid osteotomy and subsequent mobilization of the conjoined tendon?

A patient presents with weakness in elbow flexion and forearm supination, but normal shoulder abduction and normal wrist extension. Which neural structure is most likely injured?

A 45-year-old man undergoes an open reduction and internal fixation of a midshaft clavicle fracture. Postoperatively, he notes numbness over the anterolateral aspect of his shoulder. Which nerve was most likely injured during the procedure?

When utilizing the standard anterolateral (Watson-Jones) approach to the hip, what is the intermuscular internervous interval?

A patient sustains a posterior shoulder dislocation, and MRI reveals an isolated tear of the teres minor. During a posterior surgical approach, the surgeon must identify the quadrangular space. Which of the following best describes the inferior boundary of this space?

During an anterior (Smith-Petersen) approach to the hip, an internervous plane is utilized. Which of the following best describes the innervation of the muscles defining the superficial boundary of this plane?

While performing an ilioinguinal approach for an anterior column acetabular fracture, significant hemorrhage is encountered posterior to the superior pubic ramus. This is most likely due to an injury to the "corona mortis", which is an anastomosis between which two vessel systems?

During a surgical approach to the midfoot for an accessory navicular excision, the surgeon identifies a tendinous crossover beneath the navicular. At this location, known as the Master Knot of Henry, which anatomical relationship is correct?

The volar approach to the proximal radius (Henry approach) requires dissection between two muscles to expose the supinator. Which of the following nerves innervates the muscle forming the medial border of this proximal internervous plane?

During the Smith-Petersen (anterior) approach to the hip, which internervous interval is utilized superficially?

Hypertrophy of the teres minor, teres major, long head of the triceps, and the surgical neck of the humerus creates a tight quadrangular space. Which of the following structures are at highest risk of compression?

The volar (Henry) approach to the proximal radius utilizes an internervous interval between which two muscles?

The anterior approach to the hip (Smith-Petersen) utilizes a superficial internervous plane between two muscles. Which of the following nerves innervate these two muscles?

When performing an anterolateral approach to the distal humerus, the radial nerve is at risk. Approximately how far proximal to the radiocapitellar joint does the radial nerve piece the lateral intermuscular septum?

The extended volar approach to the radius (Henry approach) requires dissection between the flexor carpi radialis (FCR) and the brachioradialis. Which nerve innervates the muscle forming the lateral border of this interval?

A patient presents with isolated weakness in elbow flexion and decreased sensation over the lateral forearm following a traction injury. The affected nerve is formed by which cords of the brachial plexus?

During the ilioinguinal approach for an anterior column acetabular fracture, significant hemorrhage occurs behind the superior pubic ramus. This is most likely due to an injury to the "corona mortis", which represents an anastomosis between the:

During the anterior (Henry) approach to the proximal radius, the surgeon must mobilize a specific muscle to protect the posterior interosseous nerve. Supination of the forearm helps move this nerve away from the surgical field. Which muscle envelops the nerve and is carefully retracted?

A surgeon performs a standard anterior (Smith-Petersen) approach to the hip for a pelvic osteotomy. The internervous plane utilized is between muscles innervated by which two nerves?

During a posterior approach to the humerus for fracture fixation, the radial nerve is identified. As it courses distally, it pierces the lateral intermuscular septum to enter the anterior compartment of the arm. On average, at what distance proximal to the lateral epicondyle does this transition occur?