TY - JOUR AU - Rovira Gutierrez, Manuel AU - Fernandez Gonzalez, Manuel AU - Villar Perez, Julio AU - Perez Varela, Luis AU - Hernandez Pascua, Luis AU - Alia Benitez, Jose AU - Dominguez Ignacio, Esteban AU - Quintana Cruz, Jose Jaime AU - Zuñiga Gomez, Lorenzo AU - Izquierdo Nuñez, Enrique PY - 2013 DO - 10.1590/S1808-18512013000400010 SN - 1808-1851 UR - http://hdl.handle.net/10668/2237 T2 - Coluna/Columna AB - OBJETIVO: Observar el comportamiento del tornillo expansivo en pacientes con mala calidad ósea, su seguridad, técnica, manejo y complicaciones: porcentaje de aflojamiento, roturas, "pull-out" y pseudartrosis. MÉTODOS: Realizamos estudio prospectivo... AB - Objective: To observe the behavior of the expansive screw in patients with poor bone quality, its safety, the technique, conduct and complications: percentage of loosening, breaks, pull-outs and pseudoarthrosis. Methods: Prospective multicenter study... LA - spa PB - Sociedade Brasileira de Coluna (SBC) KW - Arthrodesis KW - Spine KW - Bone screws KW - Postoperative complications KW - Osteoporosis KW - Huesos KW - Estudios prospectivos KW - Prótesis e implantes KW - Artrodesis KW - Columna vertebral KW - Tornillos óseos KW - Complicaciones postoperatorias KW - Medical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Equipment and Supplies::Prostheses and Implants::Bone Screws KW - Medical Subject Headings::Anatomy::Musculoskeletal System::Skeleton::Bone and Bones KW - Medical Subject Headings::Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::Humans KW - Medical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Epidemiologic Study Characteristics as Topic::Epidemiologic Studies::Cohort Studies::Longitudinal... KW - Medical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Equipment and Supplies::Prostheses and Implants KW - Medical Subject Headings::Diseases::Wounds and Injuries::Fractures, Bone::Fractures, Ununited::Pseudarthrosis KW - Medical Subject Headings::Diseases::Nervous System Diseases::Neuromuscular Diseases::Peripheral Nervous System Diseases::Radiculopathy KW - Medical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Statistics as Topic::Probability::Risk::Risk Factors KW - Medical Subject Headings::Health Care::Environment and Public Health::Public Health::Accidents::Accident Prevention::Safety KW - Medical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Surgical Procedures, Operative::Orthopedic Procedures::Arthrodesis::Spinal Fusion KW - Medical Subject Headings::Phenomena and Processes::Physical Phenomena::Magnetic Phenomena::Electromagnetic Phenomena::Electromagnetic Radiation::X-Rays TI - Utilización de un nuevo tornillo expansivo en pacientes con mala calidad ósea. Estudio multicéntrico. TY - research article ER -