Middle Distal Interphalangeal Joint

• Middle Distal Phalanx
• Middle Middle Phalanx

Range of motion

Injuries:

Arthritis

Movement

Flexion

Flexor Digitorum Profundus Middle

Extension - (through the middle digital extensor mechanism)

• Second Dorsal Interosseous
• Third Dorsal Interosseous
• Extensor Digitorum Middle
• Middle Lumbrical

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