Computer-navigated Iliosacral Screw Insertion Reduces Malposition Rate and Radiation Exposure
Autor: | Gerhard Konrad, Norbert P. Südkamp, Jörn Zwingmann, Michael Oberst, Elmar Kotter |
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Rok vydání: | 2009 |
Předmět: |
Adult
Joint Instability Male musculoskeletal diseases medicine.medical_specialty External fixator Percutaneous Adolescent Bone Screws Radiation Dosage Pelvis Fractures Bone Young Adult medicine Humans Fluoroscopy Orthopedics and Sports Medicine Prospective Studies Aged Sacroiliac joint medicine.diagnostic_test Computer assistance business.industry Sacroiliac Joint General Medicine Middle Aged musculoskeletal system equipment and supplies Surgery Radiation exposure surgical procedures operative medicine.anatomical_structure Surgery Computer-Assisted Orthopedic surgery Original Article Female Nuclear medicine business |
Zdroj: | Clinical Orthopaedics & Related Research. 467:1833-1838 |
ISSN: | 0009-921X |
Popis: | Insertion of percutaneous iliosacral screws with fluoroscopic guidance is associated with a relatively high screw malposition rate and long radiation exposure. We asked whether radiation exposure was reduced and screw position improved in patients having percutaneous iliosacral screw insertion using computer-assisted navigation compared with patients having conventional fluoroscopic screw placement. We inserted 26 screws in 24 patients using the navigation system and 35 screws in 32 patients using the conventional fluoroscopic technique. Two subgroups were analyzed, one in which only one iliosacral screw was placed and another with additional use of an external fixator. We determined screw positions by computed tomography and compared operation time, radiation exposure, and screw position. We observed no difference in operative times. Radiation exposure was reduced for the patients and operating room personnel with computer assistance. The postoperative computed tomography scan showed better screw position and fewer malpositioned screws in the three-dimensional navigated groups. Computer navigation reduced malposition rate and radiation exposure.Level II, therapeutic study. |
Databáze: | OpenAIRE |
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