UE Amputation Flashcards
How much %age of forearm is kept in a very short, short and long transradial amputation?
Very short = <35%
Short = 35-55%
Long = 55-90%
What structure needs to be maintained in wrist disarticulation to preserve supination and pronation
Distal Radioulnar joint
3 levels of transhumeral amputation
- Humeral neck = <30%
- Short = 30-50%
Standard = 50-90%
What is prehension
Ability to hold or grasp something
What are 3 advantages of doing an elbow disarticulation instead of transhumeral?
- No risk of bone spur or HO at the elbow disarticulation level
- Improved prosthetic suspension
- Allows for greater lifting, pulling, and pushing
In a transhumeral amputation with residual limb >35%, what 2 suspension systems are used to attach the socket?
Figure-8 OR shoulder saddle and chest strap
Amputation of the hand is considered if…
Irreparable damage occurs to 4/6: skin, blood, bone, nerve, flexors, extensors. It is then considered a “mangled” hand.
What is a forequarter amputation
Removal of arm, scapula and part of clavicle
Transhumeral residual limbs shorter than _____% will be fitted as a shoulder disarticulation
30%
When doing a transhumeral amputation, how many cm above the elbow does the amputation have to be
> 6.5cm above the elbow
Most common level of amputation in the upper extremity
Transradial
What muscle do you want to preserve in a transradial amputation if you want to keep good elbow flexion?
Brachioradialis
A transradial residual limb length of ____% to ____% is preferred when optimal externally powered prosthetic restoration is goal
60-70%
If cosmesis is of importance to an amputee with a wrist disarticuation, what kind of amputation would be more appropriate?
Long, below-elbow amputation
For the majority of cases, what is the reason behind shoulder disarticulation or forequarter amputation?
Malignancy
