66: Flatfoot Introduction - Dayton

Question 1

supination =

pronation =

Answer 1

inversion, plantarflexion and adduction

eversion, dorsiflexion and abduction

Question 2

CKC actions for supination and pronation at …

calcaneus

forefoot

talus

tibia

Answer 2

• Supination
  
  • Calcaneal inversion
  • Forefoot plantar flexion
  • Talar dorsiflexion and abduction
  • Tibial external rotation
• Pronation
  
  • Calcaneal eversion
  • Forefoot dorsiflexion & abduction at MTJ
  • Talar plantarflexion and adduction
  • Tibial internal rotation

Question 3

CKC pronation = _______leg rotation

Answer 3

internal

Question 4

limitation of the TN jt results in …

Answer 4

loss of majority of STJ ROM

Question 5

goals of tx for flexible pronated foot

Answer 5

• Increase the moment of ground reactive force medial to the STJ/MTJ axis
• Move effective STJ axis lateral (more foot medial)
• Reduce hypermobility
• Orthotics or surgery

Question 6

goals of tx flexible supinated foot

Answer 6

• Increase the moment of ground reactive force lateral to the STJ/MTJ axis
• orhotics or surgery

Question 7

goals of tx rigid foot

Answer 7

• Improve the static position of the foot
• Surgery to reposition segments
• Changes in GRF do not help change position in a rigid foot

Question 8

If we move a segment of the foot either medial or lateral to the effective STJ / MTJ axis we change the GRF acting on the whole foot and induce supination if …

Answer 8

the effective axis becomes more lateral and pronation if the axis moves medial

Question 9

what happens to kite’s (talocalacaneal) angle with pronation?

Answer 9

increases

Question 10

lateral kite’s anlge with supination will …

Answer 10

increase

Question 11

CORA center of rotatoin angulation

Answer 11

intersection of the PAA proximal anatomic axis and DAA dital anatomic axis of the two segments being correction

Question 12

ACA angulation correction axis should be ..

Answer 12

at the CORA

Question 13

basic osteotomy types

Answer 13