DPT Prosthetics & Orthotics 2

Question 1

A transtibial amputee demonstrates excessive heel rise during early swing phase. The most likely cause is:

Accepted Answer

Insufficient plantarflexion resistance in the heel

Answer

Prosthetic foot set too far anterior

Answer

Excessive dorsiflexion range in the prosthetic foot

Answer

Socket fit too loose proximally

Question 2

The most common cause of skin breakdown in prosthetic users is:

Accepted Answer

Shear forces from pistoning or poor socket fit

Answer

Allergic reaction to socket materials

Answer

Excessive prosthetic weight loading

Answer

Prolonged use of suspension sleeves

Question 3

Which type of upper extremity orthosis is most appropriate for a patient with radial nerve palsy presenting with wrist drop?

Accepted Answer

Dynamic wrist extension splint

Answer

Resting hand splint in intrinsic-plus position

Answer

Cock-up wrist splint in static neutral position

Answer

Ulnar gutter splint

Question 4

Residual limb shaping following amputation surgery is best achieved by:

Accepted Answer

Figure-8 compression wrapping or use of shrinker socks

Answer

Surgical revision to create a conical shape

Answer

Strengthening exercises for residual limb musculature

Answer

Desensitization massage therapy alone

Question 5

A Syme amputation is best described as:

Accepted Answer

Ankle disarticulation with preservation of the heel fat pad

Answer

Amputation through the midfoot at Lisfranc's joint

Answer

Amputation through the tibia 5 cm distal to the knee

Answer

Partial calcanectomy with preservation of metatarsals

Question 6

A patient with a transfemoral prosthesis demonstrates excessive lateral trunk lean toward the prosthetic side during stance. The most likely cause is:

Accepted Answer

Prosthesis too short or inadequate mediolateral socket alignment

Answer

Prosthetic foot too soft with excessive pronation

Answer

Prosthetic knee unit with too much resistance

Answer

Excessive hip flexion contracture on the prosthetic side

Question 7

The primary principle behind total contact casting (TCC) for healing diabetic plantar ulcers is:

Accepted Answer

Redistributing plantar pressure away from the wound across the entire foot and lower leg

Answer

Immobilizing the ankle to prevent all dorsiflexion motion

Answer

Providing a waterproof antimicrobial wound environment

Answer

Correcting equinovarus deformity that caused the ulcer