Magnetic resonance image of long finger shows intact flexor digitorum profundus tendon (short arrow) and rupture of flexor digitorum superficialis tendon (long arrow) at level of proximal phalanx.

We present a case of subcutaneous flexor tendon rupture of the index finger following malunion of a distal radius fracture. The cause of the tendon rupture was mechanical attrition due to a bony ...