ABOS Part I Comprehensive Review - Batch 27

Question 1

A 62-year-old male is undergoing a total shoulder arthroplasty via the deltopectoral approach. During the initial dissection of the deltopectoral interval, the surgeon identifies the cephalic vein. Which of the following is the most appropriate manag

Accepted Answer

C. Retract the vein medially with the pectoralis major muscle to protect the axillary nerve and prevent kinking.

Question 2

A 48-year-old competitive tennis player presents with recurrent anterior shoulder instability and significant anterior glenoid bone loss, confirmed by a pre-operative CT scan. The surgeon plans a Latarjet procedure via the deltopectoral approach. Dur

Accepted Answer

B. Musculocutaneous nerve

Question 3

A 78-year-old female with severe rotator cuff tear arthropathy is scheduled for a reverse total shoulder arthroplasty (RTSA) via the deltopectoral approach. The surgical team positions her in the beach chair position. Which of the following is a reco

Accepted Answer

C. Potential for cerebral hypoperfusion, requiring meticulous blood pressure monitoring.

Question 4

During a deltopectoral approach for open reduction and internal fixation of a 3-part proximal humerus fracture, the surgeon has successfully developed the deltopectoral interval and retracted the conjoined tendon medially. As the surgeon prepares to

Accepted Answer

C. To protect the axillary nerve and anterior humeral circumflex artery from iatrogenic damage.

Question 5

A 35-year-old male presents with a large, retracted subscapularis tear following a work-related injury. Surgical repair via the deltopectoral approach is planned. The surgeon opts for a subscapularis tenotomy. Which of the following statements accura

Accepted Answer

C. The deltopectoral approach respects the deltoid's innervation, minimizing post-operative weakness and facilitating early rehabilitation.

Question 6

A 55-year-old male with severe glenohumeral osteoarthritis is undergoing a total shoulder arthroplasty. After developing the deltopectoral interval and retracting the conjoined tendon medially, the surgeon performs a subscapularis tenotomy. Which of

Accepted Answer

C. The inferior limb of a T-capsulotomy must be performed with extreme care to avoid injury to the axillary nerve.

Question 7

A 68-year-old female presents with a highly comminuted 4-part proximal humerus fracture, deemed unsuitable for ORIF due to severe osteopenia. A reverse total shoulder arthroplasty (RTSA) is planned via the deltopectoral approach. Which of the followi

Accepted Answer

B. Extensive scarring from previous surgeries in the deltopectoral interval.

Question 8

A 28-year-old male collegiate football player sustains a displaced surgical neck fracture of the humerus. Open reduction and internal fixation (ORIF) is planned via the deltopectoral approach. During the approach, the surgeon identifies the deltoid a

Accepted Answer

B. Deltoid: Axillary nerve; Pectoralis Major: Medial and lateral pectoral nerves

Question 9

A 72-year-old patient is undergoing a total shoulder arthroplasty in the beach chair position. During the procedure, the anesthesia team reports a significant drop in blood pressure. The surgeon is concerned about potential complications related to p

Accepted Answer

D. Posterior ischemic optic neuropathy (PION)

Question 10

A surgeon is performing a revision total shoulder arthroplasty via the deltopectoral approach on a patient with a failed glenoid component. After mobilizing the subscapularis, the surgeon needs to achieve maximal exposure of the glenoid. Which of the

Accepted Answer

B. Aggressive medial retraction of the conjoined tendon and pectoralis minor.

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Key Takeaway