Shoulder & Hip Sports MCQs

A 55-year-old male complains of poorly localized right shoulder pain and weakness, predominantly when externally rotating his arm. Examination reveals isolated atrophy of the infraspinatus with weakness in external rotation. Supraspinatus strength is normal.

MRI is most likely to show:

A 28-year-old volleyball player presents with insidious onset of posterior shoulder pain and weakness. Examination reveals isolated atrophy of the infraspinatus with normal supraspinatus strength. An MRI shows a paralabral cyst. Where is the cyst most likely located?

A 22-year-old rugby player has recurrent anterior shoulder instability. A CT scan with 3D reconstruction demonstrates 28% glenoid bone loss. What is the most appropriate definitive management?

A 24-year-old professional baseball pitcher presents with posterior shoulder pain during the late cocking phase of throwing. Examination shows 15 degrees of internal rotation and 130 degrees of external rotation. What is the most likely pathophysiologic mechanism of his shoulder pain?

A 55-year-old man presents with anterior shoulder pain and weakness after a fall onto an outstretched hand. On examination, he has increased passive external rotation. Which of the following physical examination tests would most likely be positive?

A 25-year-old man sustains an anterior shoulder dislocation during a seizure. Following closed reduction, he is noted to have numbness over the lateral aspect of the shoulder. Which muscle's function is most likely impaired?

A 35-year-old man presents with a locked posterior shoulder dislocation after a seizure. CT reveals an anteromedial humeral head defect (reverse Hill-Sachs lesion) involving 35% of the articular surface. The patient is active and desires to return to manual labor. What is the most appropriate surgical management?

A 29-year-old elite volleyball player complains of vague posterior shoulder pain and progressive weakness. Physical examination reveals isolated weakness in external rotation with the arm at the side. Forward elevation and internal rotation strength are normal. MRI demonstrates a paralabral cyst. Where is the cyst most likely located?

A 21-year-old man undergoes a Latarjet procedure for recurrent anterior shoulder instability with 30% glenoid bone loss. The stabilizing "sling effect" provided by this procedure is primarily dependent on the dynamic tension of which structure?

A 34-year-old recreational weightlifter complains of vague, poorly localized posterior shoulder pain and numbness over the lateral deltoid. MRI demonstrates isolated atrophy of the teres minor. The affected nerve is compressed in a space bordered by which of the following structures?

A 42-year-old man presents with a 3-week history of severe, unrelenting shoulder pain that woke him from sleep. The pain has now begun to subside, but he has noticed profound weakness in overhead elevation and external rotation. MRI of the shoulder reveals no rotator cuff tear. EMG confirms acute denervation of the supraspinatus, infraspinatus, and deltoid. What is the most likely diagnosis?

During pre-operative planning for a recurrent anterior shoulder instability patient, a 3D CT scan is obtained. The surgeon uses the 'best-fit circle' method on the sagittal en face view to calculate glenoid bone loss. At what threshold of anterior glenoid bone loss is an arthroscopic Bankart repair generally considered to have an unacceptably high failure rate, making a bone block procedure (e.g., Latarjet) the standard recommendation?

A 24-year-old professional rugby player has a history of recurrent anterior shoulder instability. A 3D CT scan demonstrates 28% anterior glenoid bone loss. He is planned for a Latarjet procedure. Which of the following describes the primary stabilizing mechanism of this procedure when the arm is in the abduction-external rotation (ABER) position?

A 28-year-old professional volleyball player presents with insidious onset of vague posterior right shoulder pain and weakness. Physical examination demonstrates isolated weakness in external rotation with the arm at the side, but forward elevation and abduction strength are completely normal. An MRI is most likely to show a paralabral cyst in which of the following anatomic locations?

A 24-year-old rugby player presents with recurrent anterior shoulder instability. A 3D CT scan reveals 27% anterior glenoid bone loss. What is the most appropriate definitive management?

A 50-year-old man falls on an outstretched arm and experiences acute anterior shoulder pain. Physical examination reveals significantly increased passive external rotation compared to the contralateral side. Which of the following tests is most likely to be positive?

A 28-year-old professional volleyball player complains of vague posterior shoulder pain and weakness. Examination reveals isolated atrophy of the infraspinatus with normal supraspinatus bulk and strength. Where is the most likely site of nerve compression?

A 25-year-old rugby player undergoes an open Latarjet procedure for recurrent anterior shoulder instability with 25% glenoid bone loss. Postoperatively, he presents with inability to flex his elbow and decreased sensation over the lateral forearm. Which nerve was most likely injured during the procedure?

A 55-year-old manual laborer presents with a massive, irreparable posterosuperior rotator cuff tear. He has intact subscapularis function and no glenohumeral arthritis. He desires to return to heavy labor. Which of the following tendon transfers is most appropriate to restore active external rotation?

A 42-year-old man presents with sudden onset of severe, unrelenting right shoulder pain lasting for two weeks, followed by profound weakness of his deltoid and supraspinatus. There is no history of trauma. MRI of the shoulder is unremarkable. What is the most likely diagnosis?