ABOS Part I Comprehensive Review - Batch 42

Question 1

A 28-year-old male long-distance runner presents with a 6-month history of bilateral lower leg pain. The pain is described as a deep, aching tightness in the posteromedial calf, which consistently begins after approximately 15 minutes of running and

Accepted Answer

Deep Posterior Chronic Exertional Compartment Syndrome (CECS)

Question 2

A 35-year-old athlete is undergoing diagnostic workup for suspected deep posterior chronic exertional compartment syndrome. The image below depicts a cross-section of the lower leg. Which labeled structure represents the primary muscle responsible fo

Accepted Answer

B

Question 3

A 22-year-old collegiate soccer player presents with exertional deep posterior leg pain. Intracompartmental pressure measurements are performed during a treadmill test that reproduces his symptoms. Which of the following pressure profiles, measured i

Accepted Answer

Resting: 18, 1-minute post-exercise: 35, 5-minutes post-exercise: 25

Question 4

A 32-year-old military recruit has been diagnosed with deep posterior chronic exertional compartment syndrome (CECS) based on classic symptoms and positive intracompartmental pressure measurements. He has undergone 6 months of dedicated conservative

Accepted Answer

Failure of non-operative management for at least 3-6 months with persistent, debilitating symptoms.

Question 5

During a medial deep posterior fasciotomy, the surgeon has made the skin incision and carefully retracted the great saphenous vein and saphenous nerve. The medial gastrocnemius and soleus muscles have been retracted posteriorly and laterally. The ima

Accepted Answer

Deep transverse crural fascia

Question 6

During a medial deep posterior fasciotomy for chronic exertional compartment syndrome, meticulous dissection is crucial to protect vital neurovascular structures. Which of the following statements accurately describes the anatomical relationship of t

Accepted Answer

They lie superficial to the deep transverse crural fascia, nestled between it and the soleus muscle.

Question 7

A 25-year-old female undergoes an uncomplicated medial deep posterior fasciotomy for chronic exertional compartment syndrome. During her 6-week post-operative follow-up, she expresses concern about a visible bulge along the posteromedial aspect of he

Accepted Answer

Reassurance that this is a common, often asymptomatic, consequence of fasciotomy.

Question 8

A 20-year-old athlete is 3 days status post-medial deep posterior fasciotomy. The incision is clean and dry, and pain is well-controlled with oral medication. According to the immediate post-operative rehabilitation protocol outlined in the case, whi

Accepted Answer

Perform gentle ankle plantarflexion and dorsiflexion within pain-free limits.

Question 9

A 29-year-old professional dancer is 12 weeks post-medial deep posterior fasciotomy and is progressing well through rehabilitation. She is eager to return to full dance activities, which involve high-impact movements and agility. According to the adv

Accepted Answer

Ability to perform sport-specific drills without symptoms and achieve pre-injury strength symmetry.

Question 10

A 40-year-old recreational runner is considering treatment options for objectively diagnosed deep posterior chronic exertional compartment syndrome. He asks about the likelihood of success with conservative management. Based on the summary of key lit

Accepted Answer

Low, often quoted in the range of 10-30%

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Key Takeaway