Index Metacarpophalangeal Joint

Bones:

Ligaments:

Range of motion

Injuries:

Arthritis

Movement

Flexion

Primary - the first dorsal interosseous, the first palmar interosseous and the index lumbrical

Secondary (after flexion has been initiated) - the Flexor Digitorum Superficialis Index and Flexor Digitorum Profundus Index

Extension - Extensor Digitorum Index

Radial deviation / Pronation - First Dorsal Interosseous

Ulnar deviation / Supination - first palmar interosseous

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