Flashcards in Exam 1 Deck (36)
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1
Does a PTB socket allow for volume change
No
2
Is PTB socket tight or loose AP?
tight
3
Pressure tolerant areas (6)
Patellar ligament
Anterior Compartment
Posterior Compartment
Lateral shaft of fibula
Medial shaft of tibia
Medial tibial flare
4
Pressure sensitive areas (7)
Lateral tibial flare
Anterior tibial tubercle
Crest of tibia
Distal end of tibia
Distal end of fibula
Head of fibula
Hamstring tendons
5
Why is a TT socket tipped in 5 degrees of knee flex?
to prevent distal end weight bearing
6
What is one purpose of a temporary prosthesis
densentization
7
Inset of the foot creates what
Genu varus at MSt
8
What is the function of genu varus during gait (4)
1.) Narrow BOS
2.) Mimics anatomical gait
3.) Loads and offloads appropriate structures
4.) Stresses LCL> MCL
9
How many ply sock used between skin and hard socket in TT
3-5
10
Hard socket (TT) is good for those with what
hygiene issues
11
What must someone have to use a hard socket (TT)
intact sensation and soft tissue protection over bony prominences
12
What is a soft interface or insert used for?
Mature limbs with less soft tissue coverage or limbs with more bony prominences
13
Revise socket when how many ply needed
more than 10
14
Most common interface between hard socket and RL
socks
15
3 Functions of socks:
1.) Cushion WB forces applied to RL
2.) Helps with volume control
3.) Moisture wicking
16
3 Functions of Suspension Systems:`
1.) Holds prosthesis to RL
2.) Allows patient to sit comfortably
3.) Minimizes movement of socket on RL
17
TT: Indications for Suction suspension (3)
1.) Good subcutaneous tissue
2.) At least fair UE function
3.) Pt who wants fewer straps
18
TT: Advantages for suction suspension (3)
1.) excellent suspension
2.) incr proprioception
3.) reduces torque
19
TT: Disadvantages for suction suspension (3)
1.) Tough to don/doff
2.) Requires good hygiene
3.) Durability of silicone liners not great
20
5 types of TT suspension systems
1.) Suction
2.) Knee Sleeve
3.) Supracondylar Cuff
4.) Supracondylar Suprapatellar
5.) Joints and corset
21
TT: Indications for Sleeve Suspension (3)
1.) Good ligaments
2.) Juveniles
3.) Long RL
22
TT: Advantages for sleeve suspension (5)
1.) Excellent suspension over patella
2.) Adjustable
3.) Conceals trim lines, more cosmetic
4.) Constriction is minimal
5.) Simple to use, lightweight
23
TT: Disadvantages for sleeve suspension (6)
1.) Can cause skin issues due to incr perspiration (need to clean daily)
2.) Tough to don/doff
3.) Knee flex can cause some bunching of material behind the knee
4.) Holes can reduce suction
5.) No added true knee stability
24
TT: Indications for Supracondylar Cuff (3)
1. Good ligaments
2. Current user
3. One who can't tolerate other types of suspension
25
TT: Advantages for Supracondylar cuff (3)
1. Unencumbered knee flexion
2. Easy to don/doff
3. Can use waist belt
26
TT: Disadvantages for Supracondylar cuff (4)
1. Pistons easily
2. Not added M/L stability
3. Can restrict or pinch in knee flexion
4. Excess soft tissue around distal thigh may impinge
27
Main socket types for TT
1.) Patellar tendon bearing
2.) Total surface bearing
28
TT: Indications for Joint and Corset Suspension (4)
1.) Instability of knee
2.) Unload an ultra sensitive RL
3.) Patient preference
4.) Heavy duty user
29
TT: Advantages for Joint and Corset Suspension (3)
1.) Incr overall stability
2.) Shared WB on thigh, less on RL
3.) Increases proprioceptive feedback
30
TT: Disadvantages for Joint and Corset Suspension (5)
1.) Not hygienic
2.) heavy
3.) not cosmetic
4.) long fabrication time
5.) Hassle of applying it
31
TT: Indications for Supracondylar Suspension (4)
1.) Pt needed M-L stability
2.) Pt wanting unrestricted knee extension
3.) Patients preferring fewer straps
4.) Shorter RL
32
TT: Advantages for Supracondylar suspension (3)
1.) Allows open patella for kneeling
2.) Improved cosmesis due to patellar opening
3.) Fairly easy to don/doff
33
TT: Disadvantages for supracondylar suspension (2)
1.) Large of fleshy thigh
2.) Reduced cosmesis
34
TT: Indications for Supracondylar suprapatellar suspension (3)
1.) Short RL
2.) Knee requires ML/AP stability
3.) Patients who want fewer straps
35
TT: Advantages for Supracondylar suprapatellar suspension (3)
1.) Incr WB surface
2.) Incr ML and AP stability
3.) Knee hyperextension control
36
