WK7: TH Nomenclature and Socket Design Flashcards
1
Q
Elbow Disarticulation
Amputation Level
A
- through joint
- epoicondyles & humerus fully intact
- 90-100% of humeral length
2
Q
Long Transhumeral Amputation
Amputation Level
A
50-90% of humeral length
3
Q
Medium Transhumeral Amputation
Amputation Level
A
30-50% of humeral length
4
Q
Short Transhumeral Amputation
Amputation Level
A
0-30% ofhumeral length
5
Q
Interscapular Thoracic
Amputation Level
A
removes all possible generation of shoulder motion
6
Q
Important Posterior Landmarks
A
- Acromion
- Spine of Scapula
- C7
- Epicondyles
7
Q
Important Anterior Landmarks
A
- Deltopectoral Line
- Axilla
8
Q
Rotation Control
Transhumeral Challenges
A
- direction of pull (body powered) causes socket to experience external rotation
- med or short RL: shoulder girdle ???
9
Q
Suspension and Distraction
Transhumeral Challenges
A
added weight of components
10
Q
Distal Volumetric Control
Transhumeral Challenges
A
- Limb volume fluctations near the distal end are common in this level amputation
- should be taken into consideration
11
Q
Proximal ROM
Transhumeral Challenges
A
- when limb is short and requires extended trimlines for stability - proximal ROM can be impeded by trimlines
12
Q
Distribution of Axial Loading
Transhumeral Challenges
A
- axial load of px and frequently carried objects should be considered
- how can the limb support axial loads and distraction forces
- harness support can be considered to support axial loads as secondary suspension
13
Q
Altered Forces During Use
Transhumeral Challenges
A
- consider where forces will be higher in the socket when going through ROM to actuate components
14
Q
Elbow Disarticulation/Long TH
Trim Lines
A
- superior: excludes acromion
- anterior: at deltopectoral groove
- posterior: at lateral border of scapula
15
Q
Medium TH
Trim Lines
A
- Superior: Up to acromion
- Anterior: Include deltopectoral groove
- Posterior: include lateral border of scap
