LATERAL FOOT RADIOGRAPHIC BIOMECH EVAL

Question 1

name this angle

formed by intersection of column tail and weight bearing reference line

range?

Answer 1

talar declination angle

21 degrees

Question 2

name this angle

formed by intersection of longitudinal axis of calcaneus and weight bearing reference line

range?

Answer 2

calcaneal inclination angle

18-22 degrees

Question 3

name this angle

formed by intersection of longitudinal talar and calcaneus axes

range?

Answer 3

lateral talocalcaneal angle

42 degrees +/- 5 degrees

Question 4

name this angle

formed by intersection of 1st metatarsal longitudinal axis and weight bearing reference line

range?

Answer 4

1st metatarsal declination angle

21 degrees

Question 5

name this angle

formed by intersection of lateral column tali and lateral 1st metatarsal axis

range?

Answer 5

Meary’s angle

> 15 degrees

Question 6

what is this line?

formed by tracing through choparts joint; unbroken curve with rectus positioning

Answer 6

cyma line

Question 7

what is this angle

formed by weight bearing reference line and a tangent to posterior facet

range?

Answer 7

posterior facet angle

30-40 degrees

Question 8

what is this angle

high points of anterior process, posterior facet and postero superior surfaces of calcaneus

range?

Answer 8

Boehlers angle

25-40 degrees