Shoulder & Hip Sports MCQs

A 28-year-old professional volleyball player presents with vague posterior shoulder pain and progressive weakness in external rotation. An MRI reveals isolated fatty infiltration and atrophy of the teres minor muscle. Compression of the nerve responsible for this clinical finding most likely occurs within an anatomic space defined by which of the following sets of boundaries?

During a surgical dislocation of the hip to address femoroacetabular impingement (Ganz approach), the surgeon meticulously preserves the obturator externus muscle. Preservation of this muscle directly protects which of the following vital structures that provides the primary blood supply to the native femoral head?

A 22-year-old motorcyclist presents with a traumatic brachial plexus injury after landing on his shoulder. Physical examination reveals a complete loss of active shoulder abduction, external rotation, and elbow flexion. Hand and wrist functions are fully preserved, and there is no Horner syndrome. This clinical picture is most consistent with an injury to which of the following nerve roots?

A 32-year-old male recreational volleyball player complains of vague posterior right shoulder pain and progressive weakness. On physical examination, he demonstrates 5/5 strength in shoulder abduction but 3/5 strength in external rotation. MRI reveals a large paralabral cyst. Based on the physical examination findings, at which of the following anatomic locations is the nerve most likely compressed?

A 28-year-old volleyball player has weakness in external rotation of the shoulder. Examination shows atrophy of the infraspinatus but normal bulk of the supraspinatus. Sensation is intact. Where is the most likely site of nerve compression?

The rotator interval is a clinically important anatomical space in the shoulder. What are its superior and inferior borders?

A 28-year-old volleyball player presents with posterior shoulder pain and deltoid weakness. MRI reveals isolated atrophy of the teres minor. Which of the following defines the superior boundary of the anatomic space where the affected nerve is compressed?

A patient sustains a proximal humerus fracture and later demonstrates profound weakness in shoulder abduction and diminished sensation over the lateral aspect of the deltoid. The affected nerve traverses through a space bounded by which of the following structures?

A 45-year-old female presents with isolated weakness in external rotation of the shoulder. EMG reveals isolated denervation of the infraspinatus with normal supraspinatus function. Where is the most likely site of nerve compression?

A 28-year-old overhead athlete presents with isolated external rotation weakness of the shoulder. An MRI reveals a paralabral cyst located in the spinoglenoid notch. Which of the following physical exam findings is most expected?

When performing a surgical dislocation of the hip for a femoroacetabular impingement procedure, preservation of the deep branch of the medial circumflex femoral artery (MCFA) is paramount to prevent avascular necrosis. In relation to the short external rotators, where is this critical vessel consistently located?

A 28-year-old elite pitcher presents with isolated wasting and severe weakness of the infraspinatus muscle. He has full strength in shoulder abduction, and external rotation with the arm abducted to 90 degrees is intact. Entrapment of the involved nerve is most likely occurring at which of the following anatomic locations?

A 30-year-old bodybuilder presents with poorly localized posterior shoulder pain and weakness in external rotation. MRI reveals an isolated paralabral cyst compressing the contents of the quadrilateral space. Which of the following muscles acts as the superior border of this anatomic space?

A 25-year-old male hockey player presents with chronic groin pain exacerbated by flexion and internal rotation. Imaging reveals a significant Cam-type morphology. In femoroacetabular impingement (FAI), where does the primary cartilage damage classically initiate in the setting of an isolated Cam lesion?

A 45-year-old overhead worker presents with shoulder pain. MRI reveals a type II SLAP tear. After failed conservative management, surgical intervention is planned. Compared to SLAP repair, primary biceps tenodesis in this age group is associated with:

A 22-year-old rugby player presents with recurrent anterior shoulder instability. A 3D CT scan is obtained to evaluate anterior glenoid bone loss.

The 'glenoid track' concept is utilized to determine the risk of an engaging Hill-Sachs lesion. The glenoid track width is calculated as:

A 28-year-old male undergoes hip arthroscopy for femoroacetabular impingement (FAI) with a symptomatic CAM lesion. During the osteochondroplasty of the anterolateral femoral head-neck junction, the surgeon must be cautious to avoid injury to the primary blood supply of the femoral head. Which vessel is at greatest risk if the resection is carried too far posterosuperiorly?

A 22-year-old collegiate baseball pitcher complains of posterior shoulder pain that is most severe during the late cocking phase of throwing. He has a loss of 25 degrees of internal rotation compared to his non-throwing shoulder. Which of the following describes the primary pathophysiologic mechanism for his pain?

A 45-year-old man falls onto his outstretched arm while skiing and sustains an acute, traumatic isolated full-thickness tear of the subscapularis tendon. Which of the following physical examination findings is most specific for this injury?

A 24-year-old male hockey player presents with chronic, deep groin pain exacerbated by hip flexion and internal rotation. Radiographs demonstrate a pistol-grip deformity. A coronal T2-weighted MRI of his right hip is shown in Figure 11.

During arthroscopic intervention for this condition, where is the most common location of concomitant articular cartilage damage expected to be found?