Midterm Part 5 Arthrokinematics Flashcards Preview

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Flashcards in Midterm Part 5 Arthrokinematics Deck (22)
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1
Q

Arthrokinematics definition

A

motion that occurs between the articular surfaces of joints

2
Q

Convex

A

curved, rounded outward

3
Q

Concave

A

CAVE!!!

4
Q

convex-concave relationship

A
  • increases contact surface area of joint
  • contributes to increased joint stability
  • increases dissipation of contact forces
  • helps guide motion between the bones
5
Q

What are the 5 movements between joint surfaces?

A

roll, slide, spin, distraction & longitudinal traction, compression

6
Q

Roll

A

multiple points along one rotating articular surface contact multiple points on another articular surface

ex. femoral condyles rolling on tibial plateau

7
Q

Roll usually occurs in combo with…

A

sliding or spinning

8
Q

Roll occurs on ____ surfaces.

A

incongruent (unequal)

9
Q

Slide

A

a single point on one articular surface contacts multiple points on another articular surface

ex. carpal bones sliding in their facet surfaces

10
Q

Glide

A

when a mobilization technique is applied to produce a slide in the joint

11
Q

The more _____ the surfaces are, the more sliding there is.

A

congruent

12
Q

Distraction and Longitudinal Traction

A

joint surfaces are pulled apart. use to stretch a joint capsule and mobilize a joint.

13
Q

Compression

A

decrease in space between two joint surfaces. adds stability.

normal response to muscle contraction.

14
Q

Convex-on-Concave and Concave-on-Convex Rule

How does these rules help?

A

describes the relationship of rolling and sliding motion within a joint when one joint surface is convex and the other surface is concave.

These rules serve as a basis for joint mobilization techniques (restore natural arthrokinematic motions)

vs. osteokinematics - physiological movements - movements done voluntarily

15
Q

convex-on-concave motion

A

concave side stabilized, convex side glides in opposite direction as it rolls

16
Q

concave-on-convex motion

A

when convex side is stabilized, concave glides in same direction as it rolls.

17
Q

Physiological Movements

A

movement of bones done voluntarily - osteokinematics

18
Q

Accessory Movements

A

arthrokinematic movements within the joint and surrounding tissues that are necessary for normal joint ROM, but cannot be performed voluntarily. (if you have tightness in a ligament or joint capsule)

19
Q

Joint Play

A

motions that occur within the joint but only as a response to an outside force.

20
Q

End-feel

A

a way to interpret and measure joint play movements

21
Q

Treatment often combines _____ and ______ to restore a particular joint movement.

A

osteokinematic and arthrokinematic movements

22
Q

Follow the convex-concave rule to…

A

restore normal joint play which will increase pain-free joint ROM!!!