Pediatric Orthopaedic Board Review MCQs | High-Yield Cases

Question 1

A 5-year-old boy falls from monkey bars and presents with a swollen, painful left elbow. Radiographs reveal an extension-type Gartland III supracondylar humerus fracture with posterolateral displacement of the distal fragment. Which of the following

Accepted Answer

Anterior interosseous nerve; inability to flex the interphalangeal joint of the thumb and distal interphalangeal joint of the index finger

Question 2

A 12-year-old obese boy presents with a 3-week history of left groin pain and a limp. He is diagnosed with a stable left slipped capital femoral epiphysis (SCFE) and undergoes in situ pinning. The parents ask about the risk to the right hip. Prophyla

Accepted Answer

Underlying endocrine disorder, such as hypothyroidism

Question 3

A 4-month-old female is being treated with a Pavlik harness for developmental dysplasia of the hip (DDH). During a routine follow-up, the mother reports that the infant is not kicking her right leg as much as before. On examination, there is decrease

Accepted Answer

Femoral nerve palsy; discontinue the harness temporarily

Question 4

A 7-year-old boy presents with a painless limp of 2 months' duration. Radiographs of the pelvis demonstrate fragmentation and sclerosis of the right capital femoral epiphysis, consistent with Legg-Calvé-Perthes disease. Which of the following is cons

Accepted Answer

Age of the patient at the time of clinical onset

Question 5

A 2-week-old infant is undergoing serial casting for idiopathic congenital talipes equinovarus (clubfoot) using the Ponseti method. To achieve optimal results and avoid creating a midfoot breach (rocker-bottom foot), the deformities must be corrected

Accepted Answer

Cavus, Adductus, Varus, Equinus

Question 6

A 14-year-old girl sustains an ankle injury while playing soccer. Radiographs reveal a Salter-Harris III fracture of the anterolateral aspect of the distal tibial epiphysis. This fracture pattern is primarily due to the asymmetric closure of the dist

Accepted Answer

Anterior inferior tibiofibular ligament (AITFL)

Question 7

A 6-year-old boy with spastic quadriplegic cerebral palsy (GMFCS Level V) is evaluated in the orthopaedic clinic. He has no hip pain, but his parents report difficulty with perineal hygiene. An AP pelvis radiograph demonstrates a Reimers migration pe

Accepted Answer

Varus derotational osteotomy (VDRO) of the proximal femur and pelvic osteotomy

Question 8

A 3-year-old obese African American girl presents with progressive bowing of her left leg. Standing radiographs demonstrate a sharp varus angulation at the proximal tibial metaphysis. The metaphyseal-diaphyseal angle (Drennan angle) is measured at 18

Accepted Answer

Infantile Blount disease; Knee-ankle-foot orthosis (KAFO) bracing

Question 9

A 4-year-old boy is evaluated for a history of three low-energy long bone fractures. On examination, he has a triangular facies, blue sclerae, and brownish, opalescent teeth (dentinogenesis imperfecta). Genetic testing is ordered. This patient's cond

Accepted Answer

Type I collagen

Question 10

A 5-year-old boy presents to the emergency department with a 2-day history of right hip pain and a limp. He currently refuses to bear weight on the right leg. His oral temperature is 38.6°C (101.5°F). Laboratory studies reveal a white blood cell (WBC

Accepted Answer

93%

AAOS Pediatric Orthopedic MCQs (Set 2): DDH, SCFE & Spinal Deformities | Board Review

Pediatric Orthopaedic Board Review MCQs | High-Yield Cases