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19 terms

Joint Arthrokinematics

Summary of Joint Arthrokinematics of the Elbow and Forearm Joints. The four specific joints that will be referenced are the Humeroulnar joint, the Humeroradial joint, the Proximal radioulnar joint, and the Distal radioulnar joint.
STUDY
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Motion of ulnar joint surface in Humeroulnar Flexion
Anterior roll, Anterior/distal slide (SAME, SAME)
Motion of ulnar joint surface in Humeroulnar Extension
Posterior roll, Posterior/proximal slide (SAME, SAME)
Motion of the radial joint surface in Humeroradial Flexion
Anterior roll, Anterior slide (SAME, SAME)
Motion of the radial joint surface in Humeroradial Extension
Posterior roll, Posterior slide (SAME, SAME)
Motion if the proximal forearm in Terminal Flexion
Medial roll, Lateral slide (OPPOSITE, OPPOSITE)
Motion if the proximal forearm in Terminal Extension
Lateral roll, Medial slide (OPPOSITE, OPPOSITE)
Motion of rim of radial head in Proximal Radioulnar Pronation (radius on ulna)
Anterior roll, Posterior/dorsal slide (OPPOSITE, OPPOSITE)
Motion of rim of radial head in Proximal Radioulnar Supination
Posterior roll, Anterior/volar slide (OPPOSITE, OPPOSITE)
Motion of distal radial joint surface in Distal Radioulnar Pronation (radius on ulna)
Anterior roll, Anterior slide (SAME,SAME)
Motion of distal radial joint surface in Distal Radioulnar Supination
Posterior roll, Posterior slide (SAME, SAME)
Bony Parts of elbow and forearm complex
Humerus, Ulna, Radius
Humeroulnar Joint characteristics
Hinge joint, flexion/extension movement
Humeroulnar Joint arthrokinematics
CONCAVE ulna fossa ON CONVEX trochlea, medial/lateral slide of ulna
Humeroradial Joint characteristics
Hinge-pivot joint, flexion/extension and supination/pronation
Humeroradial Joint arthrokinematics
CONCAVE radial head ON CONVEX capitulum
Proximal Radioulnar Joint characteristics
Uniaxial pivot joint (meaning proximal and distal radioulnar joints function as one joint), capsule within joint capsule, pronation and supination
Proximal Radioulnar Joint arthrokinematics
CONVEX rim of radial head ON CONCAVE notch of ulna
Distal Radioulnar Joint characteristics
Uniaxial pivot joint (meaning proximal and distal radioulnar joints function as one joint), capsule within joint capsule, pronation and supination
Distal Radioulnar Joint arthrokinematics
CONCAVE notch of distal radius ON CONVEX head of ulna