CASTING OF ORTHOTICS HIGH YIELD

Question 1

what are the steps for the casting of orthotics?

Answer 1

capture foot at midstance
controls rearfoot or STJ around neutral
allow for maximal pronation at the MTJ
create for a more functional environment
patient must be functional or propulsive

Question 2

what is the suspension technique?

Answer 2

• position patient
• plaster preparation
• applying plaster
• positioning foot
• loading lateral column
• removing cast

Question 3

what is the semi weight bearing casting?

Answer 3

-have a patient seated
-place a cushion or bio foam on ground
-position patient with hip
-flexed 90 degrees, knee
flexed 90 degrees, ankle flexed 90 degree
-apply plaster to patients foot
-have patient rest foot on fusion, holding STJ in neutral
-when plaster is dry enough, remove the cast

Question 4

what are the steps for cast evaluation?

Answer 4

bisect posterior surface of the heel

tilt cast until heel is vertical and allow cast to rest on flat surface

plantar surface of the cast at the area of the MTJ should be
convex

sulcus of the toes

plantar surface of the lateral arch of the negative cast

compare right and left negative casts

Question 5

what type of cast is this?

lateral side of the negative cast is convex or c shaped

Answer 5

supinated cast

Question 6

what are the steps for the making of the pronated cast?

Answer 6

concavity below the lateral malleolus

prominent bulge of the talonavicular articulation on medial side of cast

flattened plantar surface of the heel of the cast

decrease in the height of the lateral arch at the calcaneocuboid joint

abducted forefoot on the rearfoot