Two Cases of Delayed Flexor Tendon Rupture Decades After Reconstruction

James D. Dieterich, Gregory M. Frechette, Zach Bernstein, Eitan Melamed, Michael R. Hausman

Research output: Contribution to journalArticlepeer-review


Two patients are presented with late-term ruptures of their flexor tendon grafts 10 and 40 years, respectively, after reconstruction. Both occurred from low-energy mechanisms. Their ruptures were intratendinous and not at the proximal or distal insertions. Electron microscopy demonstrated degeneration and increased matrix deposition. Immunohistology showed viable tenocytes, but no clear vascular organization to the disrupted grafts. Even after clinically successful flexor tendon autograft, tendons may still be at risk of degeneration and rupture a decade or more after reconstruction.

Original languageEnglish
Pages (from-to)NP11-NP15
Issue number2
StatePublished - Mar 2023


  • delayed flexor tendon failure
  • flexor graft rupture
  • flexor tendon
  • flexor tendon failure
  • flexor tendon reconstruction


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