Prosthetics: Gait Deviations

Question 1

Lateral bending: prosthesis causes (socket)

Answer 1

• Improperly shaped lateral wall

- High medial wall

Question 2

Lateral bending: prosthesis causes

Alignment/length

Answer 2

• Prosthesis too short

- Aligned in abduction

Question 3

Lateral bending: amputee causes

Answer 3

• Poor balance
• Abduction contracture
• Improper training
• Short residual limb
• Weak hip abductors on prosthetic side
• Hypersensitive and painful residual limb

Question 4

Abducted gait: prosthetic causes

Socket

Answer 4

• high medial wall
• poorly shaped lateral wall
• inadequate suspension

Question 5

Abducted gait: prosthetic causes

Length/positioning

Answer 5

Prosthesis too long

Positioned in abduction

Question 6

Abducted gait: prosthetic causes

Componentry

Answer 6

Excessive knee friction

Question 7

Abducted gait: amputee causes

Answer 7

• Abduction contracture
• Improper training
• Adductor roll
• Weak hip flexors and adductors
• Pain over lateral residual limb

Question 8

Circumducted gait: prosthetic causes

Length

Answer 8

Too long

Question 9

Circumducted gait: prosthetic causes

Knee/foot componentry

Answer 9

Excessive knee friction

Excessive plantarflexion

Question 10

Circumducted gait: prosthetic causes

Socket

Answer 10

Too small

Question 11

Circumducted gait: amputee causes

Answer 11

• abduction contracture
• improper training
• weak hip flexors
• lacks confidence to flex the knee
• painful anterior distal limb
• inability to initiate prosthetic knee flexion

Question 12

Excessive knee flexion during stance: prosthetic causes

Socket

Answer 12

Set forward in relation to foot

Question 13

Excessive knee flexion during stance: prosthetic causes

Foot

Answer 13

Excessive dorsiflexors

Stiff heel

Question 14

Excessive knee flexion during stance: prosthetic causes

Length

Answer 14

Prosthesis too long

Question 15

Excessive knee flexion during stance: amputee causes

Contractures

Answer 15

Hip flexion contracture

Knee flexion contracture

Question 16

Excessive knee flexion during stance: amputee causes

Other than contractures

Answer 16

Anterior pain in RL
Decreased quad strength
Poor balance

Question 17

Vaulting: Prosthetic causes

Socket

Answer 17

Inadequate socket suspension

Question 18

Vaulting: Prosthetic causes

Length

Answer 18

Prosthesis too long

Question 19

Vaulting: Prosthetic causes

Alignment

Answer 19

Excessive alignment stability

Question 20

Vaulting: Prosthetic causes

Foot

Answer 20

Excessive PF

Question 21

Vaulting: amputee causes

Answer 21

• RL discomfort
• improper training
• fear of stubbing toe
• short RL
• painful hip/RL

Question 22

Rotation of forefoot at heel strike: prosthetic causes

Socket

Answer 22

Loose-fitting socket

Inadequate suspension

Question 23

Rotation of forefoot at heel strike: prosthetic causes

Foot

Answer 23

Excessive toe-out built in

Rigid SACH heel cushion

Question 24

Rotation of forefoot at heel strike: amputee causes

Answer 24

• Poor muscle control
• Improper training
• weak hip IR
• Short RL

Question 25

Forward trunk flexion: prosthetic causes Socket

Answer 25

Socket too big | Poor suspension

Question 26

Forward trunk flexion: prosthetic causes Knee

Answer 26

Knee instability

Question 27

Forward trunk flexion: amputee causes Weakness

Answer 27

Weak hip extensors

Question 28

Forward trunk flexion: amputee causes Contracture

Answer 28

Hip flexion contracture

Question 29

Forward trunk flexion: amputee causes Other than contracture/weakness

Answer 29

Pain with ischial WB | Inability to initiate prosthetic knee flexion

Question 30

Medial or lateral whip: prosthetic causes Knee

Answer 30

Excessive rotation of the knee | Valgus in prosthetic knee

Question 31

Medial or lateral whip: prosthetic causes Foot

Answer 31

Improper alignment of toe break

Question 32

Medial or lateral whip: prosthetic causes Socket

Answer 32

Tight socket fit

Question 33

Medial or lateral whip: amputee causes

Answer 33

Improper training Weak hip rotators Knee instability