Wrist Biomechanics-1

Wrist Biomechanics-1 - MUN Wrist Biomechanics and Carpal...

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Unformatted text preview: MUN Wrist Biomechanics and Carpal Instability MUN Wrist Biomechanics Anatomy Kinematics Force transmission MUN Anatomy 8 bones Complex interlocking shapes Intrinsic and extrinsic ligaments MUN MUN Wrist ligaments MUN Wrist ligaments Volar stronger than dorsal Double V shape with weak area ; space of Poirier Important interosseous ligaments are SLIL and LTIL Dorsal ligaments tend to converge on triquetrum MUN Kinematics Three axes of motion FEM 90 70 degrees Flex/ext split between radiocarpal & midcarpal RUD 20 50 degrees PSM 90 90 degrees MUN Axes of Motion MUN Kinematics Rows Columns (Navarro) Oval ring Longitudinal columns (Weber) Link Joint MUN Link Joint MUN Kinematics Rows Proximal and Distal with scaphoid as a bridge Motion within and between rows Columns Central(flex/ext) lunate,capitate,hamate Lateral (mobile) scaphoid,trapezoid,trapezium Medial (rotation) triquetrum MUN MUN Kinematics Center of rotation : head of capitate MUN...
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This note was uploaded on 12/24/2011 for the course STEP 1 taught by Professor Dr.aslam during the Fall '11 term at Montgomery College.

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Wrist Biomechanics-1 - MUN Wrist Biomechanics and Carpal...

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