Shared Flashcard Set

Details

Lower Extremity Orthosis
Orthotics
26
Other
Not Applicable
04/22/2008

Additional Other Flashcards

 


 

Cards

Term
Describe a brace.
Definition
  • External device that is applied to provide support and improve function or assist w/ motion accross a joint or a body part (the ultimate brace: a bed)
Term
List Pros and Cons of using a brace.
Definition

Pros

  • increase safety
  • reduce pain
  • improve biomechanical alighnment
  • adjunct to therapy
  • restore functional level

Cons

  • May restric motion - causing the joints above or below the brace to work harder to produce the motion
  • Increased weight to the limb
  • Aesthetics - cosmetic issues
  • Chang in the kinetic chain - takes re-education to lean how to walk again, PT & gait training
Term
What are the orthopedic goals for bracing?
Definition
  • Motion control
  • Correct Deformity - only if the deformity is a flexible deformity with passive motion available
  • Accommodate the deformity - if it is a fixed deformity
  • Decrease Pain by restricting motion
Term
What is the purpose for a rigid AFO?
Definition
  • it is a solid ankle, that provides max control over the subtalar joints and talocruel joint
  • it can influence the position of the knee because it has max control over motion

 

Term
If there is increased PF in a rigid AFO brace what will occur at the knee?
Definition
excessive knee extension
Term
If there is increases DF in a rigid AFO what will occur at the knee?
Definition
excessive knee flexion
Term
What is the purpose for a semi-rigid AFO?
Definition
  • Allows for more flexibility than a rigid AFO, by allowing "partial" motion througth the stance phase, even though there is no actual joint present
Term
What is the purpose for a flexible AFO?
Definition
  • Used when the goal is not to limit joint/bone translation
  • Allows for motion control in the swing phase but no stance phase control
Term
What is the purpose for an articutlate AFO?
Definition
  • This style has many joint placed within the brace for a selection of control options, can be fine tuned to accomodate patient needs
  • ex. foot drop - can allow for toe pick up or side to side support in the coronal plane
Term
What is the purpose for a floor reaction AFO?
Definition
  • this brace is designed to offer knee support, w/out having to actually cross the knee joint
  • it will "influence" knee support and fxn to prevent t he knee from buckling from early to midstance or early stance
Term

What are the characteristics of a

floor reaction AFO?

Definition
  • Rigid ankle
  • Extended foot plate
  • Pretibial Shell
Term

What is a DAFO?

Definition
  • Dynamic Ankle Foot Orthosis
  • Itis designed to offer some sort of motion, w/out completely locking up a limb
Term

What is a PRAFO

 

Definition
  • Pressure relief AFO's - worn at night to relieve pressure and to prevent pressure sores
Term
What is a night splint?
Definition
  • a planter fascitis splint worn at night to give stretch to the DF to prevent PF when sleeping
Term

With a KAFO design you can adjust the knee control to accommodate for various levels of orthopaedic disorders list the main characteristics for each of these controls:

  • Free motion
  • Locked
  • Stance control
Definition
  • Free motion
    • allows for free motion for knee flexion, and provides extension control up to 180 degrees
    • good for recavartum or varus/valgus deformities
  • Locked
    • creates a "stiff leg" style of walking
  • Stance control
    • can either be electronically controlled, or the device can use force plates, or a little camber to lock and unlock at differnt areas in the gait cycle to help mormalize the motion pattern
Term

Describe an HKAFO design in the

sagital plane and coronal plane. 

 

What can be added if trunk control is necessary?

Definition
  • Sagital - controls free flexion of the hip and block out hip extension
  • Coronal - controls abd and add, helps to maintain the BOS (useful for pts with weak hip abductors)
  • A LSO may be added to create trunk control (LSHKAFO)
Term

What is the purpose for patella

femoral knee braces?

Definition
  • a sleave toat is designed to help control patella femoral tracking
  • many different designs are available
Term
What is the purpose for a hinged knee brace?
Definition
  • Provide mediolateral control and allow for free motion with only limitations medially and laterally
Term
What is the purpose of a sports brace?
Definition
  • A hinged knee brace that allows for greater cotrol, has straps supporting the leg more on top and on bototm of the brace
  • Used for ACL, PCL, and CI injuries (CI = combined instabilities)
Term

What is the importance for an OA brace(osteoarthritis brace),

 

 

Definition
  • essentially used for pain management after the joint has become bone on bone, can either support medially or laterally
  • For an OA brace to be effective it need to have a long lever arm, allowing for increased surface area for it to press on
Term
What is the purpose for a Post-op ROM Brace?
Definition

 

  • Sort term use only  (~3-6 mo); after which they may be going into a more custom made brace, depending upon the dx and the surgery that was performed, (if requested by the MD).
  • It will have adjustable joints for ROM control
Term

For a patient with a rigid AFO,

a rocker bottom shoe can be used to:

Definition
  • Assist with forward progression of the tibia
  • Promote smooth rollover from heel strike to heel off
Term

To increase stability of a floor reaction AFO,

you would need to:

Definition

Increase the PF

Term
How would you correct knee hyperextension in a patient wearing a rigid AFO?
Definition

Add a heel lift to increase PF

Increase the DF angle to decrease hyperextension 

Term
A free motin KAFO is indicated when a patientpresents with?
Definition
  • Severe recurvatum
  • Severe genuvarus
  • Quad strength of 3- or less
Term
Double action ankle joints can be used to:
Definition
  • make a solid ankle AFO
  • make a DF assit AFO
  • make a DF stop AFO

- It has an anterior and posterior channel that you can either lock it up with, or make it into a free joint with

- Allowing for more versitility

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