High-Yield Orthopedic Board Review MCQs

Question 1

A 72-year-old female sustains a displaced femoral neck fracture after a mechanical fall. The primary blood supply at risk of disruption, which leads to a high incidence of avascular necrosis of the femoral head in this injury pattern, originates dire

Accepted Answer

Medial circumflex femoral artery

Question 2

A 5-year-old boy falls from monkey bars and sustains an extension-type supracondylar humerus fracture. On presentation to the emergency department, his hand is pale and pulseless, but he has normal capillary refill and warm fingers. What is the most

Accepted Answer

Closed reduction and percutaneous pinning, followed by vascular reassessment

Question 3

A 13-year-old obese male presents with a 3-week history of left knee pain and a limp. He denies any recent trauma or systemic symptoms. On examination, as the left hip is passively flexed, it obligatorily deviates into external rotation. Radiographs

Accepted Answer

Shear failure through the hypertrophic zone of the physis

Question 4

A 14-year-old male presents with vague anterior knee pain and intermittent catching. Radiographs reveal an osteochondral lesion consistent with osteochondritis dissecans (OCD). Based on the most common location for this pathology, which specific anat

Accepted Answer

Lateral aspect of the medial femoral condyle

Question 5

A 9-year-old African American boy with homozygous hemoglobin SS disease presents with a 4-day history of fever, localized distal femoral pain, and an inability to bear weight. Blood cultures and a bone aspirate are obtained. WhileStaphylococcus aureu

Accepted Answer

Salmonella typhimurium

Question 6

A 68-year-old male presents with insidious onset of right hip pain 14 months after a primary total hip arthroplasty. Inflammatory markers are mildly elevated. Joint aspiration yields a synovial fluid leukocyte count of 4,500 cells/μL with 75% neutrop

Accepted Answer

Staphylococcus epidermidis

Question 7

A 74-year-old female presents with chronic right shoulder pain and an inability to actively elevate her arm above 45 degrees. Radiographs demonstrate severe glenohumeral joint space narrowing and superior migration of the humeral head, articulating w

Accepted Answer

Deltoid

Question 8

A 45-year-old construction worker experiences acute low back pain radiating down the lateral aspect of his left leg to the dorsum of his foot. Examination reveals a positive straight leg raise test on the left. He demonstrates 3/5 strength in ankle d

Accepted Answer

L5

Question 9

A 32-year-old manual laborer presents with chronic, progressive dorsal wrist pain and decreased grip strength. He denies any specific acute trauma. Radiographs reveal sclerosis and fragmentation of the lunate. Which of the following anatomical varian

Accepted Answer

Negative ulnar variance

Question 10

A 28-year-old male is struck by a motor vehicle and sustains a severely displaced, high-energy Schatzker VI tibial plateau fracture. Twelve hours post-admission, he complains of excruciating leg pain that is out of proportion to the injury and not re

Accepted Answer

Pain with passive stretch of the involved compartment muscles

Orthopaedic Surgery Board Exam Review: ABOS Part I & AAOS OITE Prep Questions | Part 22210

High-Yield Orthopedic Board Review MCQs