Simultaneous Dorsal Base Fracture and FDP Avulsion of Distal Phalanx of the Little Finger

Document Type : CASE REPORT


Shohada Teaching Hospital Tabriz University of Medical Sciences, Tabriz, Iran.


Avulsion injury of the flexor digitorum profundus (FDP) with concomitant fracture of the distal phalanx dorsal base is
uncommon. Simultaneous avulsion fractures of the insertion of this tendon associated with rupture of the tendon from
the bony fragment and combination with dorsal base fracture is very rare and also complicated. A 36- year- old man
fell and injured his right little finger. FDP avulsion with simultaneous dorsal base fracture (containing extensor Tendon
insertion) was detected. Our surgical repair by a single midlateral incision the avulsed fragment was replaced on the
palmar base of the distal phalanx and successfully immobilized with 1.5 mm screw. After three months, patient had 20
degree range of motion in DIP joint. The digit was pain free and also relatively functional. It seems that FDP avulsion
classification need to be extended and include this uncommon type as described in this case report for better management
of these uncommon type.


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