The impact of transferred vascularized toe joint length on motion arc of reconstructed finger proximal interphalangeal joints: A cadaveric study

Chung Chen Hsu, Charles Yuen Yung Loh, Dennis Kao, Steven Lawrence Moran, Yu Te Lin

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Vascularized toe joint transfer for finger proximal interphalangeal joint reconstruction can result in sub-optimal arc of motion and extension lag due to inappropriate intercalated bony segment length. We investigated the impact of intercalated segment length on passive arc of motion and extension lag of the reconstructed proximal interphalangeal joint. Cadaveric intercalated joint grafts were harvested from lesser toes and transferred to cadaveric fingers. The pre-determined finger proximal interphalangeal joint defect size was 2 cm. Three different intercalated segment lengths were inserted and resulting proximal interphalangeal joint arc of motion and extension lag were measured. The average arc of motion of finger proximal interphalangeal joints was 81° and 54° for toe proximal interphalangeal joints. Long intercalated segments had an average arc of motion of 30° with 32° extension lag. Equal-length intercalated segments had an average 49° arc of motion with 15° extension lag. Short intercalated segments had an average arc of motion of 71° with 8° extension lag. Shorter intercalated segments provide the greatest reduction in extension lag.

Original languageEnglish (US)
Pages (from-to)789-793
Number of pages5
JournalJournal of Hand Surgery: European Volume
Volume42
Issue number8
DOIs
StatePublished - Oct 1 2017

Keywords

  • optimal bone length
  • proximal interphalangeal joint
  • proximal interphalangeal joint reconstruction
  • Vascularized joint transfer
  • vascularized joint transfer

ASJC Scopus subject areas

  • Surgery

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