DIRECT PEDICLE SCREW INSERTION PULLOUT STRENGTH

Autor: RÔMULO PEDROZA PINHEIRO, ARIANE ZAMARIOLI, THIBAULT CHANDANSON, KERI GEORGE, ANTONIO CARLOS SHIMANO, HELTON LUIZ APARECIDO DEFINO

Publikováno v: Acta Ortopédica Brasileira, Vol 29, Iss 4, Pp 203-206 (2021)

ABSTRACT Objective: Study the in vitro pullout strength of SpineGuard/Zavation Dynamic Surgical Guidance Z-Direct Screw (DSG Screw), a screw pedicle designed to be inserted using a direct insertion technique. Methods: DSG Screws of 5.5 mm and 6.5 mm

Externí odkaz: https://doaj.org/article/180f751d81b744bf8aa5a531475ea4d5

A influência da incompatibilidade do macho de rosca na resistência à extração do parafuso pedicular

Autor: Rômulo Pedroza Pinheiro, Raffaello de Freitas Miranda, Antonio Carlos Shimano, Thibault Chandanson, Keri George, Helton L.A. Defino

Publikováno v: Revista Brasileira de Ortopedia. 57:327-333

Resumo Objetivo Nosso objetivo foi estudar a resistência à extração “in vitro” do parafuso SpineGuard/Zavation Dynamic Surgical Guidance Z-Direct (Parafuso DSG Guia Cirúrgico Dinâmico, SpineGuard Inc, Boulder, Colorado, USA), um parafuso pr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::62abe9b5c16d2a1d6d13b8f834b2c05e
https://doi.org/10.1055/s-0041-1732390

Reduction in radiation (fluoroscopy) while maintaining safe placement of pedicle screws during lumbar spine fusion

Autor: Christopher D. Chaput, Keri George, Amer F. Samdani, John I. Williams, John Gaughan, Randal R. Betz

Publikováno v: Coluna/Columna, Vol 12, Iss 2, Pp 138-141 (2013)

OBJECTIVE: The purpose of this study is to report the results using PediGuard (electrical conductivity device) to reduce radiation exposure while drilling the pilot hole for pedicle screw placement. METHOD: Eighteen patients diagnosed with a degenera

Externí odkaz: https://doaj.org/article/84f899350193434ab55eb0282ae338a3

Previsão de rotura do pedículo vertebral por meio de guia cirúrgico dinâmico

Autor: John P. Gaughan, Keri George, Helton Luiz Aparecido Defino, Amer F. Samdani, John L. Williams, Randal R. Betz

Publikováno v: Coluna/Columna v.13 n.3 2014
Coluna/Columna
Sociedade Brasileira de Coluna (SBCO)
instacron:SBCO
Coluna/Columna, Volume: 13, Issue: 3, Pages: 210-213, Published: SEP 2014
Coluna/Columna, Vol 13, Iss 3, Pp 210-213 (2014)

OBJECTIVE: To determine the effectiveness of a pedicle probe to anticipate an impending breach and allow redirection during placement of a pilot pedicle hole. METHODS: Purposely four cortical wall sites were drilled: medial and lateral pedicle wall,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a1218594bfa48b949b725c57a2e10252
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1808-18512014000300210