Pisotriquetral instability causing an unusual flexor tendon rupture.
We present a case of a closed rupture of the flexor digitorum profundus tendon of the small finger. It is our hypothesis that because of pisotriquetral instability as a result of a lesion of the pisotriquetral ligaments the flexor digitorum profundus tendon was entrapped repeatedly between the pisiform and triquetrum. This resulted in an attritional lesion of the tendon. The pisotriquetral joint showed no bone abnormalities.
Corten
Eveline M L
EM
Department of Plastic, Reconstructive and Hand Surgery, University Medical Center, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands.
van den Broecke
Duco G
DG
Kon
Moshe
M
Schuurman
Arnold H
AH
D005260:Female; D006801:Humans; D007593:Joint Instability / Q000150:complications*; D008875:Middle Aged; D012421:Rupture; D013708:Tendon Injuries / Q000209:etiology*; D014954:Wrist Injuries / Q000209:etiology*