ABOS Part I Comprehensive Review - Batch 13

Question 1

A 72-year-old female presents to the emergency department after a low-energy fall onto her outstretched arm. Radiographs reveal a displaced two-part surgical neck fracture of the proximal humerus with 1.2 cm displacement and 50 degrees of varus angul

Accepted Answer

Non-operative management with sling immobilization and early pendulum exercises.

Question 2

A 35-year-old male sustains a high-energy trauma resulting in a complex proximal humerus fracture. Imaging reveals displacement of the greater tuberosity, lesser tuberosity, and surgical neck fragments relative to the humeral head. The humeral head i

Accepted Answer

Four-part fracture

Question 3

During open reduction and internal fixation of a displaced proximal humerus fracture via a deltopectoral approach, the surgeon is meticulously dissecting to expose the surgical neck. Which neurovascular structure is at the HIGHEST risk of iatrogenic

Accepted Answer

Axillary nerve

Question 4

A 68-year-old male undergoes open reduction and internal fixation with a locking plate for a three-part proximal humerus fracture. Postoperatively, radiographs show good reduction and hardware placement. Six months later, he presents with persistent

Accepted Answer

Lack of adequate medial calcar support.

Question 5

A 55-year-old female sustains a displaced greater tuberosity fracture of the right shoulder after a fall. Radiographs confirm a >5 mm displacement of the greater tuberosity fragment. She is active, right-hand dominant, and has no significant comorbid

Accepted Answer

Significant risk of subacromial impingement and rotator cuff dysfunction.

Question 6

A 78-year-old male with severe osteoporosis and a history of a massive, irreparable rotator cuff tear presents with a highly comminuted four-part proximal humerus fracture after a fall. He is physiologically fit for surgery and desires to regain as m

Accepted Answer

Reverse total shoulder arthroplasty (RTSA).

Question 7

A 60-year-old patient is undergoing open reduction and internal fixation of a displaced proximal humerus fracture. The surgical team is preparing for patient positioning. The image provided shows a typical setup for shoulder surgery. Which of the fol

Accepted Answer

It offers excellent visualization for the deltopectoral approach and allows assessment of shoulder range of motion.

Question 8

A 48-year-old male presents with a displaced two-part surgical neck fracture. He is a highly active individual and desires to return to competitive sports. During pre-operative planning, a CT scan is obtained. Which of the following pieces of informa

Accepted Answer

Detailed information on comminution and articular involvement.

Question 9

A 65-year-old female undergoes ORIF with a locking plate for a three-part proximal humerus fracture. Postoperatively, she is placed in a sling. According to the rehabilitation protocol described, which of the following activities is MOST appropriate

Accepted Answer

Gentle pendulum exercises.

Question 10

A 58-year-old male undergoes ORIF of a complex proximal humerus fracture. During the deltopectoral approach, the surgeon identifies the cephalic vein. According to the described technique, what is the typical management of the cephalic vein?

Accepted Answer

It is retracted laterally with the deltoid.

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Key Takeaway