Prosthetic Gait

Question 1

Causes for a fully extended knee at initial contact include:

Answer 1

• Insufficient pre-flexion of the socket

- Foot too anterior

Question 2

An excessively flexed knee (greater initial contact) may be caused by:

Answer 2

Faulty Suspension

Question 3

A plantar flexion bumper or wheel wedge that is too firm may result in what gait deviations at loading response?

Answer 3

Abrupt and uncontrolled knee flexion

Question 4

At loading response, if the knee remains extended and the patient “rides the heel, you should:

Answer 4

Use a foot with a firmer heel.

Question 5

How do you correct an abrupt knee flexion moment at loading response?

Answer 5

Move foot anterior.

Question 6

To most closely resemble normal human gait the socket should:

Answer 6

Displace latterly 1/2” during midstance.

Question 7

Deviations at midstance are best viewed from:

Answer 7

The coronal plane

Question 8

A patient may experience drop off at terminal stance (heel off) if:

Answer 8

• The foot is too posterior

- The toe lever is too short

Question 9

How might you correct for anterior gapping of the socket at pressing ( toe off) in the transtibial prosthesis?

Answer 9

Add prosthetic socks

Question 10

Incorrectly aligned cuff tabs can cause foot “whips” during swing phase?

Answer 10

True