PT 5131 Lecture Notes - Olecranon, Epicondyle, Supinator Muscle
29 Mar 2014
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2 joints associated with elbow: humeroulnar joint: concave ulna on convex humerus. Modified hinge joint: allows for flexion/extension and slight abduction/adduction concave fovea on radius and convex capitulum on, humeroradial joint: Do not touch in extension, allowing for better flexion/extension of elbow. 1 joint near elbow: proximal radioulnar joint: Head of radius and radial notch on ulna. 1 joint near wrist: distal radioulnar joint: talk more about when we get to wrist joint. Carrying angle : males = 10 - 15 , females = >15 , measured between humerus and forearm, excessive valgus: over 15 . Look like arm is more abducted: excessive varus: less than 10 . Look like arm is more adducted: asymmetry of trochlea causes the ulnar to deviate laterally, resulting in the. Medial lip of trochlea is longer than lateral lip: axis occurs on trochlea/lateral epicondyle. Anything in front of lateral epicondyle will flex elbow.
