HUMB2009 Lecture Notes - Lecture 1: Anterior Interosseous Nerve, Distal Radioulnar Articulation, Monteggia Fracture
5 Aug 2018
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Monteggia fracture: anterior dislocation of the radial head w # of ulna, usually angulated dorsally. Direct blow on back of upper forearm in self-defense (night-stick. Mechanism: fall on an outstretched hand with the forearm in excessive pronation injury) Galeazzi fracture: # of the radius with shortening and dislocation of the distal ulna. Radius: isolated fracture at the junction of the distal and middle third. Ulna: subluxation or dislocation of the distal radio-ulnar joint. Mechanism: fall on an outstretched arm with elbow flexed. Complications: malunion/non-union, limitation of pronation or supination, anterior interosseous nerve palsy. Bursa: sac filled with lubricating fluid, located between tissues such as bone, muscle, tendons helping the movement. Bursitis is most often caused by repetitive, minor impact on the area, gout, infections. Xr: can show deposition of calcium around tendons. Shoulder: round supraspinatus tendon visible nearby greater tuberosity of the humerus. Us: acute phase is visible synovial fluid and ill-defined margins.
