MSK LE Amputee and Prosthetics Video #5

Question 1

What level is a Chopart’s Amputation?

Answer 1

Amputation just below calcaneus

Question 2

Amputation through the ankle

Answer 2

Syme’s Amputation

Question 3

Describe ischial containment sockets

Answer 3

The ischium sits inside the socket

Question 4

Describe subischial sockets

Answer 4

Socket sits below the ischial tuberosity
- always suctioned to stay in place
- typically used with higher-level patients (good strength)

Question 5

What indicates the use of a Supracondylar Suprapatellar Socket post transtibial amputation?

Answer 5

Short residual tibia

Question 6

Types of suspension used for transfemoral prosthetic

Answer 6

Suction

Lanyard
- “like a belt”
- good for: volume/swelling changes, poor dexterity, difficulty getting leg on

Question 7

Types of suspension on a transtibial prosthetic

Answer 7

Sleeve, Pin, Suction

Question 8

Types of prosthetic knee joints

Answer 8

Locked Knee (Low Level)
Mechanical
Piston
Microprocessor

Question 9

Describe K-levels

Answer 9

K1 - Low level; transfers/cosmetics
K2 - short-distance walking
K3 - walking w/ varying cadence
K4 - High level; running/biking

Question 10

Types of foot prosthetics

Answer 10

Solid Ankle Cushion Heel (SACH) - entry level

Stationary Attachment Flexible Endoskeleton (SAFE)
- not much movement; more than SACH

Single Axis - good for gait

Multi-Axis - Uneven surfaces, High Level, and heavier

Question 11

Where are the most pressure sensitve areas following a transtibial amputation?

Answer 11

BONY AREAS
1. Patella
2. Lateral Tibial Condyle
3. Tibial Tuberosity
4. Tibial Crest
5. Fibular Head

Question 12

Which areas following a transtibial amputation are pressure tolerant?

Answer 12

FLESHY Areas

Question 13

If a patient with a prosthetic is lateral bending, what prosthetic complications could cause this?

Answer 13

• prosthetic too short
• poor fit
• High medial wall
• aligned in ABD

Question 14

Causes of circumduction gait w/ prosthetics…

Answer 14

• Prosthetic too long
• excessive PF of the foot

Question 15

Causes of excessive knee FLX during stance w/ prosthetics…

Answer 15

• socket set too far forward in relation to the foot
• foot set in excessive DF
• stiff heel

Question 16

Causes of Vaulting w/ prosthetics…

Answer 16

• prosthetics are too long
• foot in excessive PF

Question 17

Causes of forefoot rotation at heel strike w/ prosthetics…

Answer 17

• built-in toe in/out
• Loose-fitting socket

Question 18

Causes if medial/laterla whip w/ prosthetics…

Answer 18

• excessive knee rotation
• tight socket
• valgus in the knee
• improper alignment