APMLE APMLE Biomechanics and Orthopedics 2

Question 1

On a lateral weight-bearing radiograph, which angle is used to assess the sagittal plane relationship of the talus to the calcaneus?

Accepted Answer

Lateral talocalcaneal angle

Answer

The lateral talocalcaneal angle measures the sagittal relationship between the talus and calcaneus, normally 25–50°.

Question 2

What is Meary's angle used to assess on a lateral weight-bearing radiograph?

Accepted Answer

Talo-first metatarsal angle assessing foot arch

Answer

Meary's angle (talo-first metatarsal angle) assesses the medial longitudinal arch; a normal value is 0° with deviations indicating flatfoot or cavus.

Question 3

Which classification system is commonly used to grade adult-acquired flatfoot deformity based on posterior tibial tendon dysfunction?

Accepted Answer

Johnson and Strom classification

Answer

The Johnson and Strom classification (Stages I–IV) grades adult-acquired flatfoot deformity based on the severity of posterior tibial tendon dysfunction.

Question 4

What does a positive too-many-toes sign indicate?

Accepted Answer

Abduction of the forefoot seen from behind due to flatfoot deformity

Answer

The too-many-toes sign is seen when more than 1–2 toes are visible lateral to the heel from behind, indicating forefoot abduction in flatfoot deformity.

Question 5

Which orthotic design is most appropriate for a patient with a rigid forefoot valgus deformity?

Accepted Answer

Forefoot valgus post

Answer

A forefoot valgus post is applied to the orthotic to accommodate a rigid forefoot valgus deformity and prevent excessive supination compensation.

APMLE - American Podiatric Medical Licensing Examination Practice Test

APMLE - American Podiatric Medical Licensing Examination Practice Test

APMLE APMLE Biomechanics and Orthopedics 2