Interphalangeal joints of the hand

Joints of the hand
The DIP, PIP and MCP joints of the hand: Distal InterPhalangeal Proximal InterPhalangeal MetaCarpoPhalangeal
Human hand bones
Details
Identifiers
Latin	articulationes interphalangeae manus, articulationes digitorum manus
TA98	A03.5.11.601
TA2	1839
FMA	35285
Anatomical terminology [edit on Wikidata]

The interphalangeal joints of the hand are the hinge joints between the phalanges of the fingers that provide flexion towards the palm of the hand.

There are two sets in each finger (except in the thumb, which has only one joint):

• "proximal interphalangeal joints" (PIJ or PIP), those between the first (also called proximal) and second (intermediate) phalanges
• "distal interphalangeal joints" (DIJ or DIP), those between the second (intermediate) and third (distal) phalanges

Anatomically, the proximal and distal interphalangeal joints are very similar. There are some minor differences in how the palmar plates are attached proximally and in the segmentation of the flexor tendon sheath, but the major differences are the smaller dimension and reduced mobility of the distal joint.^[1]