Types of Radius/Ulna Fractures:
Both Bone Fractures:
Pediatric Forearm Fractures:
- Pediatric Both Bone Forearm Fractures
- Pediatric Ulnar Fracture
- Green Stick Frx
- Distal Ulnar Physeal Fractures
- Monteggia's Fracture
- in the child, it is essential to have 3 views of the elbow: (AP, lateral, and oblique)
- before a Monteggia frx can be ruled out;
- this is especially true in proximal ulnar shaft frx;
Proximal Radial Fractures:
Distal Radius Fractures: (Synthes Distal Radius Products)
- barton's fracture - dorsal
- barton's fracture - volar
- chauffeur's fracture
- colles fracture
- intra-articular fractures of distal radius
- pediatric distal radius fracture
Radial Shaft Fractures:
Radius Anatomy:
- radius is a curved bone with an apex lateral bow with an apex lateral bow;
- cylindral in the proximal third, triangular in the middle third, and flat distally ;
- radius & ulna lie parallel to each other when forearm is supinated;
- during pronation radius crosses ulna, rotating on axis that passes from capitulum through the distal end of ulna;
- proximal radioulnar joint is most stable in supination where the broadest part of the radial head contacts the radial notch of the ulna and the interosseous membrane is taut
- interosseous membrane:
- radius and ulna are joined by proximal & distal RU joints & by interosseous membrane, which is directed obliquely downward from radius to ulna;
- since ulna does not articulate w/ carpi, direction of interosseous membrane is important in transmission of longitudinal forces from radius to ulna;
Ulna Anatomy:
- ulna has a triangular shape throughout, with an apex posterior bow in the proximal third
- ular side of wrist is supported by TFCC, which articulates w/ both lunate and triquetrium;
- ulnar attachment of TFC is to base of ulnar styloid & distally to triquetrum w/ volar ulnocarpal ligaments;
Functional Anatomy:
- average range of pronation/supination is 90/90 degrees (50/50 degrees necessary for activities of daily living)
- middle third deformity has a greater effect on supination, with the distal third affecting pronation to a greater degree
Ezekiel 30:21 (King James Version)
Son of man, I have broken the arm of Pharaoh king of Egypt; and, lo, it shall not be bound up to be healed, to put a roller to bind it, to make it strong to hold the sword.