ABOS Part I Comprehensive Review - Batch 44

Question 1

A 32-year-old male presents to the emergency department after a generalized tonic-clonic seizure. He complains of severe left shoulder pain and inability to move his arm. Physical examination reveals the arm held in internal rotation and adduction, w

Accepted Answer

Posterior glenohumeral dislocation with a reverse Hill-Sachs lesion.

Question 2

A 28-year-old professional weightlifter presents with chronic, deep-seated posterior shoulder pain and a sensation of 'clunking' during overhead lifts, particularly during bench press. He denies any acute traumatic event but reports a gradual onset o

Accepted Answer

Kim lesion.

Question 3

A 40-year-old male presents with recurrent posterior shoulder subluxations following a fall onto an outstretched hand (FOOSH) 6 months prior. Conservative management has failed. Pre-operative imaging includes a 3D CT scan, which reveals significant p

Accepted Answer

Open posterior glenoid augmentation with an autogenous iliac crest bone graft.

Question 4

A 22-year-old college football lineman presents with recurrent posterior shoulder instability. He reports that his shoulder 'pops out' when he is blocking opponents, often with his arm in a position of adduction, internal rotation, and flexion. He ha

Accepted Answer

Applying an axillary roll in the contralateral axilla.

Question 5

A 35-year-old male undergoes open posterior glenohumeral stabilization for recurrent posterior instability with significant glenoid retroversion. The surgeon plans a posterior deltoid-splitting approach to access the joint. During the approach, caref

Accepted Answer

The interval between the infraspinatus and teres minor, protecting the axillary nerve.

Question 6

A 19-year-old male presents with a history of recurrent posterior shoulder subluxations during basketball. He reports a feeling of the shoulder 'slipping out' when he reaches across his body or attempts a chest pass. Physical examination reveals a po

Accepted Answer

It involves applying a posterior and inferior force to the proximal arm while it is abducted to 90 degrees and axially loaded, indicating a posteroinferior labral avulsion.

Question 7

A 25-year-old male presents with chronic posterior shoulder pain and a feeling of instability. He is a competitive swimmer and experiences symptoms during freestyle strokes. MRI reveals a posterior labral tear and mild capsular laxity. A CT scan is a

Accepted Answer

Arthroscopic posterior labral repair with capsular plication.

Question 8

A 50-year-old sedentary patient undergoes arthroscopic posterior labral repair and capsular plication for recurrent posterior subluxations. Post-operatively, the patient is placed in a sling. The rehabilitation protocol is initiated. Which of the fol

Accepted Answer

Active internal rotation past neutral.

Question 9

A 29-year-old professional baseball pitcher presents with persistent posterior shoulder pain and a sense of instability, particularly during the follow-through phase of his pitching motion. He has failed extensive non-operative management. MRI reveal

Accepted Answer

Kim lesion.

Question 10

A 42-year-old male presents with a chronic, unreduced posterior glenohumeral dislocation following a motor vehicle accident 3 months prior. He has significant pain and functional limitation. Pre-operative imaging reveals a large, engaging reverse Hil

Accepted Answer

Arthroscopic remplissage procedure (infraspinatus tenodesis).

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Key Takeaway