Carbon Composite AFOs Biomechanics and Gait

Event Quiz

Hello everyone,

We appreciate your attendance in the lerEXPO event Carbon Composite AFOs Biomechanics and Gait.

Please answer the following questions to earn your credits. You will be emailed when graded. You must score 80% or greater to receive 6.25 CEUs.

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1. A composite AFO is a monolithic structure(Required)

A. True

B. False

2. Prepreg Carbon fiber is an ideal material for making an AFO because:(Required)

A. they are cool looking

B. they have high strength to weight properties

C. they have energy storing and release properties

D. answers B & C are correct

E. answers A & C are correct

3. Slight valgus at the ankle joint occurs between 1st and 2nd rocker(Required)

A. because of lax ankle ligaments

B. because the weight falls laterally to the ankle axis

C. because there is no arch support in the foot bed

D. because patients are lazy

4. The function/s of the dorsiflexion muscles (tibialis anterior, extensor digitorum longus, extensor hallicus longus) is:(Required)

A. provide forward propulsion

B. pick the foot up during swing

C. prevent foot slap - controlled eccentric plantar flexion

D. none of the above

E. answers B & C are correct

5. Partial foot patients need a design that:(Required)

A. has an anterior shell that re-established the normal saggital plane weight line

B. Protects the distal end of the amputation

C. Provides energy return at the end of 2nd rocker

D. Prevent contractures due to unopposed muscle groups

E. All the above

6. Scanning technology:(Required)

A. Doesn’t work for AFO’s

B. Can be used to scan a cast of a patient or a corrected mold.

C. Can be used to take a weight bearing scan

D. answers B & C are correct

E. None of the above

7. Valgus ankle pathologies are best treated with what type of composite design(Required)

A. Solid ankle design

B. Medial strut designs

C. Lateral strut designs

D. Posterior spring design

E. All of the above

8. Varus ankle pathologies are best treated with what type of composite design(Required)

A. Solid ankle design

B. Medial strut designs

C. Lateral strut designs

D. Posterior spring design

E. All of the above

9. Saggital plane deficient pathologies (knee instabilities, recravatum control, loss of plantar flexion) are best treated with what type of composite design(Required)

A. Medial or lateral struts with a posterior calf

B. Medial or lateral struts with an anterior shell

C. Posterior spring design

D. All of the above

10. Control of the ankle can be enhanced with(Required)

A. wedging of the foot bed attached to the carbon foot plate

B. a supra malleolar ankle strap

C. a SMO attached to the carbon foot plate with an ankle strap

D. All of the above

11. What is the difference between the Hemi-Spiral Noodle and the Classic Noodle?(Required)

A. The Hemi-Spiral Noodle only comes in a medial strut while the Classic comes in a lateral strut.

B. The fabrication layup is stiffer in a Classic Noodle.

C. The Hemi-Spiral Noodle has more of a rotational motion when it flexes while the Classic has more of an anterior/posterior motion.

12. What is a stress riser?(Required)

A. A place where stress lines from applied forces concentrate.

B. When a patient unexpectedly stops by your office without an appointment.

C. Where an AFO has the most dynamic motion.

13. What is an option for the strut on a Valganoodle?(Required)

A. Dynamic

B. Solid

C. Articulated

D. All of the above

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