Technical considerations in manual and instrument tying techniques

Jacqueline D. James, Melissa M. Wu, Erich K. Batra, George T. Rodeheaver, Richard F. Edlich

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


The purpose of this study was to relate the two-hand (manual) and instrument tie techniques with the ultimate security of granny and square knots constructed in multifilament and monofilament nylon sutures. Instrument-tie technique constructed secure granny and square knots, which failed by breakage rather than slippage. Similarly, two-hand (manual) tie techniques constructed square knots, which achieved knot security, failing only by breakage. In contrast, knot security was not reliably achieved with granny knots constructed by the two-hand (manual) tie techniques, with the knots frequently failing by slippage.

Original languageEnglish (US)
Pages (from-to)469-480
Number of pages12
JournalJournal of Emergency Medicine
Issue number4
StatePublished - 1992

All Science Journal Classification (ASJC) codes

  • Emergency Medicine


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