Transradial Prostheses Flashcards
For elbow disarticulation prosthesis, socket is conformed to what structures to provide suspension and humeral rotation?
The epicondyles of the humerus
How do you operate the terminal device with a single cable control system?
Forward humeral flexion and bilateral scapular abduction
Main advantage of split socket and muenster socket
Split socket allows for more elbow flexion.
Muenster socket requires less force to use.
3 main types of elbow hinges
- Flexible
- Rigid
- Locking
What is a figure 9 harness used for?
Used for self-suspending transradial sockets such as the muenster socket
When is a locking elbow hinge used?
When there is significant elbow flexion weakness
When is a chest strap with shoulder saddle harness used?
When the user cannot tolerate the axilla loop
Which of the transradial sockets are used for long residual limb and which is for short residual limb
Long residual limb = northwestern
Short residual limb = muenster socket or split socket
What does the dual cable control system control?
One cable operates the terminal device when elbow is locked.
Other cable operates elbow flexion when elbow is unlocked.
3 types of transradial harness suspension systems
- Figure-8
- Figure-9
- Chest strap with shoulder saddle
Main difference between flexible and rigid elbow hinge
Flexible allows for pronation and supination, and rigid does not
2 types of control cable systems
- Single-control cable
2. Double-control cable
3 main types of transradial sockets
- Split socket
- Muenster socket
- Northwestern socket
When is single vs double control cable system used?
Single used in transradial amputations.
Double used in transhumeral or very short transradial amputations.
Length of transradial amputation indicated for rigid vs flexible elbow hinge
Rigid elbow hinges are used for short transradial residual limb.
Flexible elbow hinges are used for long transradial residual limb.
