Q1: TT Fitting & Evaluation Flashcards
1
Q
Biomechanical Goal #1 for a TT prosthesis
A
maximize residual limb weight bearing capacity
2
Q
Diagnosing Socket Fit Problems
A
- patient feedback/input
- residual limb evaluation
- observational gait analysis
- prosthesis evaluation
3
Q
Volume Goals
A
- resistance during donning
- no distal end discomfort
- no pain
4
Q
Length Goals
A
- Socket MPT aligned with anatomical MPT
- appropriate distal end contact
5
Q
TT Socket Evaluation: Contours Goals
A
- pressure distribution per design
- ML stability at femoral condyles
- no pain
6
Q
Anterior TT Trimlines
A
- varies by socket design
- standard PTB = mid patella
- PTB-SCSP = 25 mm proximal to patella
7
Q
Medial/lateral TT Trimlines
A
- height is patient specific
- shorter limb length indicates higher trim lines
- standard PTB=65 mm proximal to MPT
8
Q
Posterior Wall Trimlines
A
- high enough for sagittal plane stability
- low enough for sitting comfort
- hamstring tendons relieved when sitting at rest and for sit-to-stand
9
Q
When does RL undergo substantial changes in shape and volume?
A
during post operative recovery (12-18 months post-op)
10
Q
Long Term Residual Limb Changes
A
- weight gain or loss
- muscle atrophy or muscle gain
- children (bone growth, increase in girth)
11
Q
Short Term Residual Limb Changes
A
- Comorbidities
- activity level
- ambient conditions
- dietary habits
- menstrual cycle
- edema
- dialysis
