RADIOULNAR JOINT KINEMATICS- ELBOW COMPLEX BIOMECHANICS (Physiotherapy Tutorials)

RADIOULNAR JOINT KINEMATICS- ELBOW COMPLEX BIOMECHANICS (Physiotherapy Tutorials)

diagram credits/reference: Cynthia Norkin's


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Reference book for this video: Cynthia Norkin
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summary of the video with the time for reference:

1) AXIS OF MOTION
LONGITUDINAL AXIS
CENTER OF RADIAL HEAD TO CENTER OF ULNAR HEAD
SUPINATION - 85 *
PRONATION - 75 *
-ULNAR VALGUS - MOVES DISTALLY, DORSALLY
-ULNAR VARUS - MOVES MEDIALLY, PROXIMALLY
-ULNAR HEAD SLIDES IN THE ULNAR NOTCH FROM DORSAL TO PALMAR ASPECT (PRONATION TO SUPINATION)

2) LIMITATIONS
SUPINATION - LIMITED BY PASSIVE TENSION IN THE PALMAR R-U LIGAMENT AND OBLIQUE CORD
PRONATION - LIMITED BY PASSIVE TENSION IN BICEPS AND BONY APPROXIMATION OF RADIUS AND ULNA
-LIMITED BY DORSAL R-U LIGAMENT, POSTERIOR FIBERS OF MCL


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#elbowjointbiomechanics #elbowjointcomplex #movementscience