MIRA2002 Study Guide - Final Guide: Scaphoid Bone, Radius, Ulna

• School: Curtin University
• Department: Medical Imaging, Radiology & Radiography
• Course: MIRA2002
• Professor: Yasas Botenne

Document Summary

Hand arched so that carpals are in contact with ir. Joint space between trapezoid and trapezium is open: correct obliquity of the wrist is demonstrated by: Area covered: half the metacarpals, carpals, one quarter of distal radius and ulna. Collimation: centre: mid-carpal area, shutter a: mid metacarpals to one quarter of distal radius and ulna, shutter b: skin margin. Rotate a little more (5 degrees) than lateral hand, so radius and ulna are. Humerus needs to be parallel with ir, so adbuct it. Positioning: the wrist in a lateral position demonstrated by: Super-imposition of distal end of scaphoid and pisiform. Super-imposition of the radius and ulna: long axis of first metacarpal is aligned parallel with forearm, ulna styloid in profile posteriorly, trapezium with no super-imposition of first metacarpal. Area covered: distal radius and ulna, carpals, mid metacarpal area. Collimation: centre: mid-carpal area, shutter a: half the metacarpals to one quarter of distal radius and ulna, shutter b: skin margin.