About: Biomechanics – Problematic Loosening of Locking Screws from Plates.

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About: Biomechanics – Problematic Loosening of Locking Screws from Plates. Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Angularly stable plates have been used in medical and veterinary practice for the treatment of unstable fractures for several years. The principle is based on the fixation of a screw in the plate by means of the screw thread. The thread on the screw head must have the same gradient as the thread on the shank; often the thread on the screw head is finer and has multiple starts. In the operating procedure, locking bone screws in the angularly stable plate are manually tightened using a torque clutch with torque 1.5 Nm. Even if this procedure is complied with, when extracting the titanium alloy implant it is difficult (and sometimes impossible) to loosen some locking bone screws from the locking holes in the angularly stable plate. The results of the experiments led to the following recommendations: the torque should be reduced from 1.5 Nm to a lower value; conical (self-holding) screwdrivers should be used when inserting screws and cylindrical (non-self-holding) screwdrivers should be used for extracting screws; instead of the internal hexagon, the screw head should use the TORX system, which gives better torque transfer even when the screwdriver is not fully inserted into the aperture. Angularly stable plates have been used in medical and veterinary practice for the treatment of unstable fractures for several years. The principle is based on the fixation of a screw in the plate by means of the screw thread. The thread on the screw head must have the same gradient as the thread on the shank; often the thread on the screw head is finer and has multiple starts. In the operating procedure, locking bone screws in the angularly stable plate are manually tightened using a torque clutch with torque 1.5 Nm. Even if this procedure is complied with, when extracting the titanium alloy implant it is difficult (and sometimes impossible) to loosen some locking bone screws from the locking holes in the angularly stable plate. The results of the experiments led to the following recommendations: the torque should be reduced from 1.5 Nm to a lower value; conical (self-holding) screwdrivers should be used when inserting screws and cylindrical (non-self-holding) screwdrivers should be used for extracting screws; instead of the internal hexagon, the screw head should use the TORX system, which gives better torque transfer even when the screwdriver is not fully inserted into the aperture. (en)
Title	Biomechanics – Problematic Loosening of Locking Screws from Plates. Biomechanics – Problematic Loosening of Locking Screws from Plates. (en)
skos:prefLabel	Biomechanics – Problematic Loosening of Locking Screws from Plates. Biomechanics – Problematic Loosening of Locking Screws from Plates. (en)
skos:notation	RIV/61989100:27230/14:86090505!RIV15-TA0-27230___
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(TA03010804), S
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Frydrýšek, Karel Čada, Radek
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola báňská - Technická univerzita Ostrava / Fakulta strojní
http://linked.open...dnocenehoVysledku	5455
http://linked.open...ai/riv/idVysledku	RIV/61989100:27230/14:86090505
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	titanium alloy; osteosynthesis; angularly stable plate; locking bone screw; orthopaedics; traumatology; biomechanics (en)
http://linked.open.../riv/klicoveSlovo	traumatology osteosynthesis biomechanics titanium alloy angularly stable plate locking bone screw orthopaedics
http://linked.open...ontrolniKodProRIV	[4962FFA086D3]
http://linked.open...v/mistoKonaniAkce	Ostrava
http://linked.open...i/riv/mistoVydani	Ostrava
http://linked.open...i/riv/nazevZdroje	New Methods of Damage and Failure Analysis of Structural Parts : book of abstracts : 6th international conference : September 8-11, 2014, Ostrava
http://linked.open...in/vavai/riv/obor	JR
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Osteosynthesis of leg and arm fractures
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Frydrýšek, Karel Čada, Radek
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2014-09-08 (xsd:date)
number of pages	2 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Vysoká škola báňská - Technická univerzita Ostrava
https://schema.org/isbn	978-80-248-3488-7
http://localhost/t...ganizacniJednotka	27230

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