Flexor tendon repair

Richard H. Gelberman, Paul R. Manske, Wayne H. Akeson, Savio L‐Y Woo, Goran Lundborg, David Amiel

Research output: Contribution to journalArticlepeer-review

139 Scopus citations

Abstract

Healing canine flexor tendons treated with either total immobilization, delayed protected mobilization, or early protected mobilization was studied by biomechanical, microangiographic, biochemical, and histologic techniques at intervals through 12 weeks. The healing characteristics of the early mobilization tendons showed higher tensile strengths and improved gliding function than the delayed mobilization and immobilization tendons. Protected passive motion brought about accelerated changes in peritendinous vessel density and configuration, as well as increased repair site total DNA content. While adhesions obliterated the space between the tendon surface and the tendon sheath of the immobilized repairs, the mobilized tendons demonstrated coverage of the repair site by cells from the epitenon by 10 days, and a smooth, gliding surface that was maintained free of adhesions through 42 days. A series of in vitro studies demonstrated the cellular processes involved in the repair: phagocytosis of cellular debris and collagenous fragments by cells from the epitenon, and collagen synthesis primarily by endotenon cells.

Original languageEnglish
Pages (from-to)119-128
Number of pages10
JournalJournal of Orthopaedic Research
Volume4
Issue number1
DOIs
StatePublished - 1986

Keywords

  • Flexor tendon
  • Healing in vitro
  • Healing in vivo
  • Laceration
  • Microangiography
  • Tendon biochemistry
  • Tendon biomechanics

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