COF Pediatric Orthotics 3

Question 1

Metatarsus adductus in an infant is BEST described as:

Accepted Answer

Adduction of the forefoot relative to a normally aligned hindfoot

Answer

Metatarsus adductus is characterized by medial deviation (adduction) of the forefoot while the hindfoot remains in a neutral or slightly valgus position, giving the foot a C-shaped appearance.

Question 2

At what Cobb angle range is spinal bracing typically recommended for adolescent idiopathic scoliosis in a skeletally immature patient?

Accepted Answer

25 to 40 degrees

Answer

Current clinical guidelines recommend bracing for adolescent idiopathic scoliosis when the Cobb angle is between 25 and 40 degrees in skeletally immature patients to halt progression; curves above 45 degrees are generally referred for surgical evaluation.

Question 3

A child with a myelomeningocele lesion at the L3-L4 level will MOST likely require which orthotic device to achieve functional ambulation?

Accepted Answer

Knee-ankle-foot orthoses (KAFOs) or hip-knee-ankle-foot orthoses (HKAFOs)

Answer

An L3-L4 lesion spares hip flexors and knee extensors partially but leaves hip extensors, abductors, and ankle musculature non-functional; KAFOs or HKAFOs are needed to stabilize the knee and ankle for community ambulation.

Question 4

What is the primary biomechanical purpose of a twister cable orthosis in a pediatric patient?

Accepted Answer

Address rotational deformities of the lower extremity, such as internal tibial or femoral torsion

Answer

Twister cables apply a rotational force to the lower extremity to counteract intoeing caused by internal tibial or femoral torsion, promoting a more neutral foot progression angle during gait.

Question 5

Which of the following is a contraindication for using a Pavlik harness to treat DDH?

Accepted Answer

Teratologic (irreducible) hip dislocation or failed reduction after 6 months of age

Answer

Teratologic dislocations and hips that remain irreducible or present after 6 months of age are contraindications to the Pavlik harness because the harness cannot achieve or maintain reduction in these cases, and failure to recognize this increases risk of avascular necrosis.

(COF) Certified Orthotic Fitter Practice Test

(COF) Certified Orthotic Fitter Practice Test

COF Pediatric Orthotics 3