Differential Diagnosis

Dorsal dislocation of the PIP joint Lateral dislocation of the PIP joint Volar dislocation of the PIP joint Fracture of the distal proximal phalanx Fracture of the proximal middle phalanx Sprain of the PIP joint

Lateral dislocation: greater than 20 degrees of angulation with ulnar/radial stress of the PIP joint; radial or ulnar joint tenderness with or without volar plate tenderness; anteroposterior (AP) radiograph may demonstrate lateral displacement. Volar/lateral dislocation: lateral radiograph exhibits middle and distal phalanges at an oblique angle as compared with the proximal phalanx. Volar dislocation: tenderness of the dorsal aspect of the base middle phalanx; lateral radiograph reveals a fracture of the dorsal aspect of the base of the middle phalanx.

Fractures: AP, lateral, and oblique (condyles) radiographs may display fractures of the head of the proximal phalanx or the base of the middle phalanx.

Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

Get My Free Ebook


Post a comment