Orthotics: KAFO's, Knee Orthosis, HKAFO's

Question 1

Function of a Hinge-Joint?

Answer 1

• Provides mediolateral and hyperextension control
• Allows flexion and extension

Question 2

Function of a Drop-Ring Lock?

Answer 2

Drop over the joint when knee is in full extension, providing maximum stability.

Question 3

Function of a Postsurgery KO?

Answer 3

• Protect repaired ligaments from overload

Question 4

Function of a Functional KO?

Answer 4

Worn long term in lieu of surgery or during selected activities

Question 5

Function of a Swedish Knee Cage?

Answer 5

Control for excessive hyperextension of the knee

Question 6

Function of a Neoprene Sleeve?

Answer 6

Provide:

• Compression
• Protection
• Proprioceptive Feedback
• Little stabilization

Question 7

Function of a HKAFO?

Answer 7

• Controls abduction, adduction and rotation
• Control hip flexion when locked; with drop ring

Question 8

Function of a Reciprocating Gait Orthoses (RGO)?

Answer 8

• Allows for a reciprocal gait pattern (either four or two point gait pattern)
• Leaning on supporting hip forces RGO into hip extension, opposite leg pushed into flexion

Question 9

What is a Pawl-Lock?

Answer 9

• Allows patient to unlock the knee by pulling up or hooking the pawl on the back of a chair and pushing it up.
• May unlock inadvertently with posterior knee pressure.