Fixation strength of tapered versus bicylindrical hydroxyapatite-coated external fixation pins: An animal study

Antonio Moroni; Cesare Faldini; Francesco Pegreffi; Sandro Giannini

doi:10.1002/jbm.10088

Fixation strength of tapered versus bicylindrical hydroxyapatite-coated external fixation pins: An animal study

Antonio Moroni, Cesare Faldini, Francesco Pegreffi, Sandro Giannini

Istituti Ortopedici Rizzoli

Research output: Contribution to journal › Article › peer-review

Abstract

The purpose of this study was to comparatively measure the bone-pin interface strength in two types of hydroxyapatite-coated pins that differed in shape, diameter, and implantation technique. Both pin types are commonly used for tibia fixation. Thirty bicylindrical 5/4-mm stainless-steel pins (Group A) and 30 tapered 6/5-mm stainless-steel pins (Group B) were implanted in the left tibiae of 10 adult sheep. A monolateral fixator was mounted on the pins after implantation. A 5-mm-long bone segment was removed from the tibial mid-diaphysis to ensure high load at the bone-pin interface. Pin insertion torque was 830 ± 446 N/mm in Group A and 3415 ± 743 N/mm in Group B (p

Original language	English
Pages (from-to)	61-64
Number of pages	4
Journal	Journal of Biomedical Materials Research
Volume	63
Issue number	1
DOIs	https://doi.org/10.1002/jbm.10088
Publication status	Published - 2002

Keywords

Bicylindrical pins
External fixation
Hydroxyapatite
Stainless steel
Tapered pins

ASJC Scopus subject areas

Biomedical Engineering
Biomaterials

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10.1002/jbm.10088

Cite this

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title = "Fixation strength of tapered versus bicylindrical hydroxyapatite-coated external fixation pins: An animal study",

abstract = "The purpose of this study was to comparatively measure the bone-pin interface strength in two types of hydroxyapatite-coated pins that differed in shape, diameter, and implantation technique. Both pin types are commonly used for tibia fixation. Thirty bicylindrical 5/4-mm stainless-steel pins (Group A) and 30 tapered 6/5-mm stainless-steel pins (Group B) were implanted in the left tibiae of 10 adult sheep. A monolateral fixator was mounted on the pins after implantation. A 5-mm-long bone segment was removed from the tibial mid-diaphysis to ensure high load at the bone-pin interface. Pin insertion torque was 830 ± 446 N/mm in Group A and 3415 ± 743 N/mm in Group B (p",

keywords = "Bicylindrical pins, External fixation, Hydroxyapatite, Stainless steel, Tapered pins",

author = "Antonio Moroni and Cesare Faldini and Francesco Pegreffi and Sandro Giannini",

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doi = "10.1002/jbm.10088",

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T1 - Fixation strength of tapered versus bicylindrical hydroxyapatite-coated external fixation pins

T2 - An animal study

AU - Moroni, Antonio

AU - Faldini, Cesare

AU - Pegreffi, Francesco

AU - Giannini, Sandro

PY - 2002

Y1 - 2002

N2 - The purpose of this study was to comparatively measure the bone-pin interface strength in two types of hydroxyapatite-coated pins that differed in shape, diameter, and implantation technique. Both pin types are commonly used for tibia fixation. Thirty bicylindrical 5/4-mm stainless-steel pins (Group A) and 30 tapered 6/5-mm stainless-steel pins (Group B) were implanted in the left tibiae of 10 adult sheep. A monolateral fixator was mounted on the pins after implantation. A 5-mm-long bone segment was removed from the tibial mid-diaphysis to ensure high load at the bone-pin interface. Pin insertion torque was 830 ± 446 N/mm in Group A and 3415 ± 743 N/mm in Group B (p

AB - The purpose of this study was to comparatively measure the bone-pin interface strength in two types of hydroxyapatite-coated pins that differed in shape, diameter, and implantation technique. Both pin types are commonly used for tibia fixation. Thirty bicylindrical 5/4-mm stainless-steel pins (Group A) and 30 tapered 6/5-mm stainless-steel pins (Group B) were implanted in the left tibiae of 10 adult sheep. A monolateral fixator was mounted on the pins after implantation. A 5-mm-long bone segment was removed from the tibial mid-diaphysis to ensure high load at the bone-pin interface. Pin insertion torque was 830 ± 446 N/mm in Group A and 3415 ± 743 N/mm in Group B (p

KW - Bicylindrical pins

KW - External fixation

KW - Hydroxyapatite

KW - Stainless steel

KW - Tapered pins

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Fixation strength of tapered versus bicylindrical hydroxyapatite-coated external fixation pins: An animal study

Abstract

Keywords

ASJC Scopus subject areas

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