Optimal Pullout Resistance Is Achieved When Bone Screws Are Inserted At 65 To 75% Of The Stripping Torque

James Fletcher; Alisdair MacLeod; Katarzyna  Polak-Kraśna; Sean Williams; Michael Whitehouse; Harinderjit Gill; Ezio Preatoni

Optimal Pullout Resistance Is Achieved When Bone Screws Are Inserted At 65 To 75% Of The Stripping Torque

James Fletcher, Alisdair MacLeod, Katarzyna Polak-Kraśna, Sean Williams, Michael Whitehouse, Harinderjit Gill, Ezio Preatoni

University of Bristol

Research output: Contribution to conference › Abstract › peer-review

Abstract

Surgeons use their subjective assessment to determine how much screws should be tightened. However, it is unknown what stopping torque generates the optimum fixation as determined by screw compression and pullout strength. Further to this, screws are frequently over-tightened leading to bone stripping and fixation failures; these are associated with increased morbidity and mortality. As screw fixation failure is commoni, and predicting stripping torque can be difficult, identifying the limits and optimum zone for screw tightness should reduce failures thus generating significant health and economic benefits.

Original language	English
Number of pages	1
Publication status	Acceptance date - 17 Nov 2017
Event	Orthopaedic Research Society Annual Meeting - Hyatt Regency New Orleans , New Orleans, USA United States Duration: 10 Mar 2018 → 13 Mar 2018 https://www.ors.org/2018annualmeeting/

Conference

Conference	Orthopaedic Research Society Annual Meeting
Abbreviated title	ORS 2018
Country/Territory	USA United States
City	New Orleans
Period	10/03/18 → 13/03/18
Internet address	https://www.ors.org/2018annualmeeting/

Bibliographical note

Proceedings of the Annual Meeting of the Orthopaedic Research Society (ORS), 10 -13 March, 2018, New Orleans, USA

Improving Fracture Fixation - The Role of Insertion Forces on Construct Stability
Preatoni, E. (PI) & Fletcher, J. (CoI)
David Telling Charitable Trust
1/02/17 → 30/09/18
Project: UK charity

Data for "Juvenile bovine bone is an appropriate surrogate for normal and reduced density human bone in biomechanical testing"
Fletcher, J. (Creator), Williams, S. (Creator), Whitehouse, M. (Creator), Gill, H. (Creator) & Preatoni, E. (Creator), University of Bath, 5 Jul 2018
DOI: 10.15125/BATH-00410
Dataset

Cite this

@conference{e33c5af8dcf14323a5fce762f61190e4,

title = "Optimal Pullout Resistance Is Achieved When Bone Screws Are Inserted At 65 To 75% Of The Stripping Torque",

abstract = "Surgeons use their subjective assessment to determine how much screws should be tightened. However, it is unknown what stopping torque generates the optimum fixation as determined by screw compression and pullout strength. Further to this, screws are frequently over-tightened leading to bone stripping and fixation failures; these are associated with increased morbidity and mortality. As screw fixation failure is commoni, and predicting stripping torque can be difficult, identifying the limits and optimum zone for screw tightness should reduce failures thus generating significant health and economic benefits. ",

author = "James Fletcher and Alisdair MacLeod and Katarzyna Polak-Kra{\'s}na and Sean Williams and Michael Whitehouse and Harinderjit Gill and Ezio Preatoni",

note = "Proceedings of the Annual Meeting of the Orthopaedic Research Society (ORS), 10 -13 March, 2018, New Orleans, USA; Orthopaedic Research Society Annual Meeting, ORS 2018 ; Conference date: 10-03-2018 Through 13-03-2018",

year = "2017",

month = nov,

day = "17",

language = "English",

url = "https://www.ors.org/2018annualmeeting/",

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TY - CONF

T1 - Optimal Pullout Resistance Is Achieved When Bone Screws Are Inserted At 65 To 75% Of The Stripping Torque

AU - Fletcher, James

AU - MacLeod, Alisdair

AU - Polak-Kraśna, Katarzyna

AU - Williams, Sean

AU - Whitehouse, Michael

AU - Gill, Harinderjit

AU - Preatoni, Ezio

N1 - Proceedings of the Annual Meeting of the Orthopaedic Research Society (ORS), 10 -13 March, 2018, New Orleans, USA

PY - 2017/11/17

Y1 - 2017/11/17

N2 - Surgeons use their subjective assessment to determine how much screws should be tightened. However, it is unknown what stopping torque generates the optimum fixation as determined by screw compression and pullout strength. Further to this, screws are frequently over-tightened leading to bone stripping and fixation failures; these are associated with increased morbidity and mortality. As screw fixation failure is commoni, and predicting stripping torque can be difficult, identifying the limits and optimum zone for screw tightness should reduce failures thus generating significant health and economic benefits.

AB - Surgeons use their subjective assessment to determine how much screws should be tightened. However, it is unknown what stopping torque generates the optimum fixation as determined by screw compression and pullout strength. Further to this, screws are frequently over-tightened leading to bone stripping and fixation failures; these are associated with increased morbidity and mortality. As screw fixation failure is commoni, and predicting stripping torque can be difficult, identifying the limits and optimum zone for screw tightness should reduce failures thus generating significant health and economic benefits.

M3 - Abstract

T2 - Orthopaedic Research Society Annual Meeting

Y2 - 10 March 2018 through 13 March 2018

ER -

Optimal Pullout Resistance Is Achieved When Bone Screws Are Inserted At 65 To 75% Of The Stripping Torque

Abstract

Conference

Bibliographical note

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Projects

Improving Fracture Fixation - The Role of Insertion Forces on Construct Stability

Datasets

Data for "Juvenile bovine bone is an appropriate surrogate for normal and reduced density human bone in biomechanical testing"

Cite this