ABOS Part I Comprehensive Review - Batch 40

Question 1

A 32-year-old male presents to the emergency department after falling from a ladder, landing on his heels. Radiographs confirm a displaced intra-articular calcaneal fracture. Given the high-energy mechanism and the epidemiology of calcaneal fractures

Accepted Answer

C. Thoracolumbar spine fracture

Question 2

A 48-year-old male sustains a calcaneal fracture after a motor vehicle collision. Initial lateral radiographs of the foot reveal a Böhler's angle of 10 degrees and a Gissane's angle of 160 degrees. Based on these findings and the provided case inform

Accepted Answer

C. Significant loss of calcaneal height and depression of the posterior facet.

Question 3

During surgical planning for a displaced intra-articular calcaneal fracture, the surgeon reviews the patient's CT scans. The axial CT image below demonstrates significant widening and displacement of the posterior facet. This finding is most consiste

Accepted Answer

D. Sanders Type IV

Question 4

A 28-year-old male presents with a displaced intra-articular calcaneal fracture (Sanders Type III) after a fall from a roof. He is a heavy smoker and has poorly controlled diabetes mellitus. The soft tissue envelope is severely compromised with exten

Accepted Answer

E. External fixation for temporary stabilization, followed by soft tissue management.

Question 5

A 55-year-old male is undergoing open reduction internal fixation (ORIF) of a displaced intra-articular calcaneal fracture via an extensile lateral approach. During the approach, the surgeon must be particularly vigilant to protect which neurovascula

Accepted Answer

C. Sural nerve

Question 6

During the reduction sequence of a displaced intra-articular calcaneal fracture via an extensile lateral approach, the surgeon aims to restore the posterior facet congruity. Which of the following calcaneal fragments serves as the most crucial and re

Accepted Answer

D. Sustentaculum tali fragment

Question 7

A 40-year-old construction worker undergoes ORIF for a Sanders Type III calcaneal fracture. Post-operatively, he develops persistent pain, stiffness, and limited subtalar motion, despite appropriate rehabilitation. Radiographs show some residual arti

Accepted Answer

C. Post-traumatic subtalar arthritis

Question 8

A 35-year-old male is 6 weeks post-ORIF of a displaced intra-articular calcaneal fracture. He is progressing well in rehabilitation. According to the typical post-operative rehabilitation protocol outlined in the case, what is the most appropriate we

Accepted Answer

D. Strict non-weight bearing (NWB) in a removable walking boot.

Question 9

A 42-year-old male undergoes ORIF of a displaced intra-articular calcaneal fracture. During the procedure, the surgeon utilizes intraoperative fluoroscopy to confirm anatomical reduction and stable fixation, as shown in the image below. Which specifi

Accepted Answer

D. Broden's views and lateral calcaneal view.

Question 10

A 50-year-old male with a history of heavy smoking and peripheral vascular disease undergoes ORIF for a displaced intra-articular calcaneal fracture via an extensile lateral approach. Two weeks post-operatively, he develops significant wound dehiscen

Accepted Answer

C. Local wound care, strict elevation, debridement of necrotic tissue, and negative pressure wound therapy (NPWT).

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Key Takeaway