Elbow Eval & Treat

Question 1

Humero-Ulnar Joint

Answer 1

-140-150 FLX; -10-0 EXT
-Uniaxial hinge
-OPP: 70 deg FLX and 10 deg SUP
-CPP: full EXT; full SUP
-Convex medial lip of trochlea on Humerus and concave ulnar notch
-FLX/EXT

Question 2

Humero-Radial Joint

Answer 2

-OPP: full ext; full sup
-CPP: 90 FLX; 5 SUP
-flx/ext/spin
-Capsular Pattern: equal sup and pro
-Concave radial head and convex capitulum of humerus
-Radial head: resists valgus stress

Question 3

Prroximal Radio-Ulnar Joint

Answer 3

-70 PRO; 80 SUP
-OPP: 70 deg FLX; 35 def SUP
-Radial head, annular ligament, radial fossa of ulna
-interosseous membrane

Question 4

Functional Motion of Elbow

Answer 4

Flx: 80
Ext: 30
Sup/Pro: 50

Question 5

Carrying Angle

Answer 5

-valgus angulation at elbow

Males: 11-14
Females: 13-16

Question 6

Elbow Joint Capsule

Answer 6

-thin but strong
-greatest extensibility 70-90 flx

Anterior:
-taut in full ext
-38% valgus force resistance
-32% varus force resistance

Posterior:
-taught in full flx

Question 7

Medial Ligament Complex