ARTICULAR MOTIONS HIGH YIELD MIDTARSAL JOINT

Question 1

the mid tarsal joint consists of two joints that function together about two common axis of motion?

Answer 1

talo navicular joint

calcaneo cuboid joint

Question 2

describe the two axis of motion? what are they?

Answer 2

each axis is supination/pronation axis

both axis pass obliquely through the foot in anterior, medial, and dorsal direction

*longitudinal mid tarsal joint axis and oblique mid tarsal joint

Question 3

the LMTJA has transverse and sagittal plane angles of _____?

what are the motions?

clinically insignificant amount of what motion?

Answer 3

15 degrees
9 degrees
*81 degrees from the frontal plane

inversion and eversion of forefoot as supination/pronation occurs

abduction/adduction or planter flexion/dorsiflexion about the LMTJ axis

Question 4

the OMTJA has transverse and sagittal plane angles of _____?

what are the motions?

clinically insignificant amount of what motion?

Answer 4

52 degrees
57 degrees

mostly sagittal and transverse plane motion, so adduction/abduction and dorsiflexion/plantarflexion

inversion and eversion

Question 5

minimum ROM about oblique axis?

Answer 5

unknown

Question 6

minimum ROM about longitudinal axis?

Answer 6

4-6 degrees, allows for compensation to occur for subtalar joint pronation