Flexor tendon-tendon sheath interaction after tendon grafting: A biomechanical study in a human model in vitro

Jun Nishida, Peter C. Amadio, Paul C. Bettinger, Kai Nan An

Research output: Contribution to journalArticle

10 Scopus citations


A human cadaver tendon sheath model was used to study the differences in excursion resistance of tendons that might be considered as sources of clinical tendon grafts. The flexor digitorum profundus and superficialis tendons, the extensor indicis proprius tendon used in its normal proximal- distal orientation, the extensor indicis proprius tendon used in a reversed distal-proximal orientation, and the palmaris longus tendon were studied in 7 fingers. The intrasynovial tendons (the flexor digitorum profundus and superficialis tendons and the reversed extensor indicis proprius tendon) produced less excursion resistance (p < .05) than the extrasynovial tendons (the normally oriented extensor indicis proprius tendon and the palmaris longus tendon). In contrast to studies measuring resistance against a single pulley, resistance within a complete tendon sheath may be affected by contact with other structures, particularly in joint extension.

Original languageEnglish (US)
Pages (from-to)1097-1102
Number of pages6
JournalJournal of Hand Surgery
Issue number5
StatePublished - Sep 1999



  • Gliding resistance
  • Tendon graft

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine

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