Orthopaedic Technologist Exam: Fractures study guide

Transverse & Oblique fractures CORRECT ANSWER Transverse: right angle (simple fx) direct blow Oblique: angled, likely to displace, twisting force Stress/Butterfly/Avulsion fractures CORRECT ANSWER Stress: crack in bone (March fx) Butterfly: comminuted fx- 2 fragments on each side of central fragment Avulsion: tendon/ligament pulls away piece of bone Bennett's Fracture CORRECT ANSWER Intra-articular fx that involves dislocation. Oblique fx of the base of metacarpal of the thumb. Must extend into CMC joint. Often seen in football players Barton's fracture/Reverse Barton's CORRECT ANSWER Oblique fx of distal radius involving the radiocarpal joint. Unstable- readily displaces. FOOSH. Reverse Barton's: volar rim instead of dorsal Rolando's Fracture CORRECT ANSWER Fracture/dislocation of base of thumb. Same as Bennett's, but comminuted. 3 fragments in T or Y pattern. Buckle Fracture CORRECT ANSWER (Torus). Incomplete fx. FOOSH. Bone bends outward but does not fully break- one side of bone undamaged. Chauffer's fracture CORRECT ANSWER (Hutchi