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40 Cards in this Set
- Front
- Back
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Name the 4 basic TR self suspension sockets
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NYU-Muenster, Northwestern, OttoBock, Liner w/ pin/lanyard
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Name 4 advantages to a self suspending TR socket
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1) Minimized harness ( fig 9 or none)
2) Cosmesis 3) Total contact works for myo desgin 4) Increased live lift compared to step up hinges |
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Name 5 disadvantages to TR self suspending design
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1) Light duty arm
2) RL length limits 3) only suspension is anatomy 4) pull sock may be required 5)Limits ROM due to trimlines |
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HOw is the NYU-Muenster socket suspended?
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A/P compression with fig 9 harness or myo
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What are the indicaitons for the NYU-Muenster socket?
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short to very short TR (1 1/2" to 5 1/2")
Light to mod duty users Unilateral |
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What are the contraindicaitons for the NYU-Muenster?
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Long limbs with good sup/pro
heavy duty users b/l |
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Describe hand placement when casting for a NYU-Muenster
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Index and middle finger straddle the biceps tendon. Index, middle, and ring of opposite hand push on triceps tendon while thumb and pinky control M/L spread
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What is the fitting criteria for the NYU-Muenster?
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Limb length between 1 1/2"-5 1/2"
Total ROM 70 degrees ROM between 35-110 |
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who designed the Northwestern TR self suspension socket?
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john billock
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HOw is a Northwestern socket suspended?
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supracondylar suspension with some compressioin of soft tissue distal to cubital area and triceps tendon
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What are the indications for the NU socket?
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unilateral, TR with LONG limb where self suspension is desired.
medium duty user Wants myo |
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What are the contraindications?
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Long limb with good sup/pro
Heavy duty user Short to very short TR |
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What is the casting position of the NU design?
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elbow at 45 degrees
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what limb length is required for OttoBock socket?
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middle range TR levels
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How is the OttoBock socket suspended?
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M/L and A/P compression
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What is the casting technique for OttoBock self suspension?
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dynamic casting. RL is flexed thru ROM. Splints are used instead of the fingers
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What are the advantages of the OttoBock self suspension design?
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self suspension, cosmetic, more ROM
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What are the disadvantages of the OttoBock self suspending socket
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Donning difficult esp for long or very fleshy limbs.
Requires pull sock to donn |
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What are the indications for OttoBock self suspending socket?
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Unilateral, TR with limb not in extremes of length
Medium duty user |
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What are the contra indications for the OttoBock self suspending socket?
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Long limb with good pro/sup.
Very short or very long TR. Heavy duty users. B/L |
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Which of the 3 self suspeding TR sockets are best for b/L amputees?
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Nu design due to no sock needed
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Name 7 ways to improve ROM for a very short TR amputee
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1) preflex the socket
2) Polycentric hinges 3) Geared hinges 4) Sliding hinges 5) SALH (stump activated locking hinges) 6) Sauter Modification 7) endoskeletan extension- allows flexion at the socket in addition to the TD |
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Which joints CAN you use a split housing fair lead cable system on?
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1) single pivot 2) geared 3) sliding
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Which joints REQUIRE a split housing fair lead cable system?
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S. A. L. H- stump activated locking hinge
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Name 3 different multiple action hinges for a TR socket
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Geared, sliding, and SALH
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what are the indications for single pivot hinges?
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TR Heavy duty use and elbow protection against hyperext and vertical loads
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Name this type of elbow hinge
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Geared step up hinge
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Describe the geared step up hinge
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Split socket. 2:1 ratio. For every 1 degree of elbow flexion it gives you 2 degrees of forearm flexion BUT it requires 2 x the force to move the Px
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Describe the sliding action step-up hinge
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Variable ratio. CAM set up in hinge. Similar to geared step up except socket doesn't stick out as much with elbow flexion
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what are the indications/(last resort) for geared step up and sliding step up? Why is it a last resort?
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b/l, TR, short RL, limited ROM.
Last resort due to the increase in force needed to use Px |
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What are in indications for a S.A.L.H?
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EXTREMELY short RL (<1 1/2"), b/l, limited ROM AND strength AND power.
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Describe how the elbow locks/unlocks on a S.A. L.H
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Thru flexion/extension of the very short RL
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Describe how the TD and forearm of the Px moves with a S.A.L.H
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Thru shoulder motion.
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Describe the steps of grasping an object with a S.A.L.H TR Px.
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Glenohumeral flexion flexes the forearm of the Px( thru the use of split housing fair lead). The elbow is then locked by flexing the RL. The terminal device is then opened using glenohumeral flexion
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Name this type of hinge
What are the indications? What is the part that is required? |
S.A.L.H
extremely short TR, B/L with limited ROM, strength, and power. Requires split housing fair lead to help flex the Px |
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how many locking positions are there for the S.A.L.H?
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5
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how many locking positions are there for the S.A.L.H?
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5
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how is the elbow joint stablilized in a geared step up/sliding step up since there is no lock/unlock mechanism?
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Since a split housing fair lead is used to assist in elbow flexion by bridging the elbow axis, the Pt pushes back into extension/uses triceps.
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how is the elbow joint stablilized in a geared step up/sliding step up since there is no lock/unlock mechanism?
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Since a split housing fair lead is used to assist in elbow flexion by bridging the elbow axis, the Pt pushes back into extension/uses trips.
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Name this type of harness.
What is it's fxn? |
Michigan shoulder saddle and roller harness
One way to reduce pressure of axilla |
