KIN428 Lecture Notes - Lecture 15: Scaphoid Fracture, Greenstick Fracture, External Fixation
19 Apr 2016
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Document Summary
Distal radius fracture: #1 in the body, 75% of bony wrist injury. Scaphoid fracture: most common carpal fracture, 70% Barton"s fracture = intra-articular = more problems/least stable: characteristic fracture pattern = medial complex. Lunate spheroidal = better at force transmission: 70 80% force goes through it. Force on it so high you get a break longitudinally/volar. So much force is coming from the lunate. Accurate reduction and radial length restoration: normally = 9-14mm, <= 6mm = known wrist function stable reduction. Medial complex must be restored to prevent degenerative distal radial articulation. If radius is too small the carpals will collapse, to avoid is that you don"t have a change in length. Closed (type i: reversal of displacements, effective for articular fractures. Open: generally for comminuted fractures, including 4 part. *if no articular fractures, immobilization fixes it* Non-surgical: 1. closed manip and casting (cid:1) Internal fixation (k-wires, volar fixed angle plate), 3. external fixation.
