PMID: 8923724Nov 1, 1996Paper

In vitro biomechanical and histological assessment of pilot hole diameter for positive-profile external skeletal fixation pins in canine tibiae

Veterinary Surgery : VS
E M Clary, S C Roe

Abstract

This study was conducted to evaluate the effect of pilot hole (PH) diameter (0, 1.5, 2.0, 2.7, 3.1, 3.3, 3.5, and 3.7 mm) on the biomechanical and microstructural performance of positive-profile threaded external skeletal fixation pins (3.18 mm inner diameter, 3.97 mm outer diameter) using cadaveric canine tibiae. Eight pins per pilot hole diameter (four pins per bone) were used to assess differences in end-insertional torque and pin pull-out strength. Histological evaluation of eight bicortical pin tracts per pilot hole diameter was accomplished using computer-interfaced videomicroscopy on specimens processed using a bulk-staining technique. Compared with no predrill, use of 2.7 mm PH increased end-insertional torque and pull-out strength by 25% and 13.5%, respectively. No significant differences were observed in biomechanical variables for the PH diameter range of 2.0 to 3.1 mm. Compared with no predrill, use of a 3.1 mm PH increased thread area by 18%. Microfracturing around the threads decreased as PH diameter increased. Damage to the interface at the entry and exit sites of both near and far cortices also decreased as PH diameter increased. It was concluded that predrilling a PH whose diameter approximates, but does not ex...Continue Reading

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Citations

Apr 17, 2001·The Journal of Small Animal Practice·D D LewisM A Anderson
Mar 5, 2011·Journal of Zoo and Wildlife Medicine : Official Publication of the American Association of Zoo Veterinarians·Holly A PhelpsMatthew D Winter
Dec 30, 2011·Journal of Zoo and Wildlife Medicine : Official Publication of the American Association of Zoo Veterinarians·Mariano López GarcíaAntonio González Cantalapiedra
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Oct 31, 2012·Medical Engineering & Physics·Kavin KarunratanakulHans Van Oosterwyck
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Sep 30, 1999·The Veterinary Clinics of North America. Small Animal Practice·A L Johnson, C E DeCamp
Feb 28, 2017·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Juri A SteinerGerrit Harry van Lenthe
Jun 9, 2017·Journal of Feline Medicine and Surgery·Lee BeeverRichard Meeson
Jul 15, 1998·Veterinary Surgery : VS·L A DegernesC F Abrams
May 30, 1998·Veterinary Surgery : VS·K H KrausW M Rand
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Apr 13, 2012·Journal of Orthopaedic Trauma·Bryant W OliphantRobert V OʼToole
Jan 12, 2007·Veterinary Surgery : VS·Gaj Raj SinghHem Chandra Joshi
May 5, 2021·Journal of the American Veterinary Medical Association·Valentine D Verpaalen, Daniel D Lewis
May 13, 2021·Veterinary and Comparative Orthopaedics and Traumatology : V.C.O.T·Valentine D VerpaalenGary A Billings
Dec 3, 2003·Veterinary Surgery : VS·David T WhiteRobert D Welch
Sep 22, 2021·Veterinary and Comparative Orthopaedics and Traumatology : V.C.O.T·Jane ParkMark E Payton

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