Finger series

The finger series is comprised, conventionally of a posteroanterior, oblique and a lateral view. The series examines in detail the distal, middle and proximal phalanx as well as the interphalangeal, metacarpophalangeal and carpometacarpal joints. 

Note: the thumb (first digit) reviewed under the thumb series

Indications 

Finger x-rays are indicated for a variety of settings including: 

• fractures
• dislocations
• foreign body localization
• scleroderma
• erosive arthritis
• traumatic injuries 
• avulsion fractures 

Projections

Standard projection

• PA view
  • typically performed with adjacent fingers in the field of view to ascertain what finger is being imaged 
  • displays the distal, middle and proximal phalanx in the PA (AP) position  
• oblique view
  • the entire finger is displayed at roughly 45° to the PA projection
  • it has been proven to enhance the diagnostic accuracy of the finger series ²
• lateral view
  • demonstrate the entire finger in the lateral position
  • excellent view to evaluate for dislocations and volar plate avulsions