Search results for "Lateral view"

showing 7 items of 7 documents

Maintenance of Integrity of Upper Facet Joints during Simulated Percutaneous Pedicle Screw Insertion Using 2D versus 3D Planning

2019

Background No studies have directly and quantitatively compared two-dimensional (2D) and three-dimensional (3D) planning as applied during conventional percutaneous or navigated percutaneous pedicle screw placement. Study Aims This lumbar pedicle-based stabilization simulation study aimed to investigate the risk of upper facet joint violation (FJV) during posterior percutaneous pedicle screw placement with conventional 2D planning of screw implantation (as a model for fluoroscopically guided screws) compared with 3D planning (as used with navigation techniques). Methods The placement of monosegmental lumbar pedicle screws using the data sets of 250 consecutive patients was simulated. Conve…

AdultMalemusculoskeletal diseases3d planningFacet (geometry)PercutaneousZygapophyseal JointFacet joint03 medical and health sciencesImaging Three-Dimensional0302 clinical medicineLumbarPedicle ScrewsmedicineHumansLateral viewFluoroscopy030212 general & internal medicinePedicle screwAgedAged 80 and overOrthodonticsLumbar Vertebraemedicine.diagnostic_testbusiness.industryMiddle AgedSpinal Fusionmedicine.anatomical_structureSurgery Computer-AssistedFluoroscopyFemaleSurgeryNeurology (clinical)Tomography X-Ray Computedbusiness030217 neurology & neurosurgeryJournal of Neurological Surgery Part A: Central European Neurosurgery

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The Halfmoon Sign

1982

SUMMARY The halfmoon-sign is described. It consists of typically shaped fragments seen on the lateral view of the elbow in the area around the fossa radialis. With rare exceptions, the halfmoon sign is indicative of fracture of the distal humerus in the coronal plane, most commonly involving the capitulum humeri.