Articles: surgery.
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Image navigation has improved the safety and ability to perform complex spinal procedures where visibility is not optimal or anatomic deformity is present. Numerous published studies are available demonstrating its effectiveness in improved pedicle screw placement in complex multiplanar deformities. Studies have also demonstrated image navigation technology versatility; however, stabilization of the lumbopelvic junction with navigated iliac bolt fixation has not been reported. ⋯ Image-navigated iliac fixation allows for safe and accurate placement of bilateral iliac bolts without PSIS percutaneous reference frame interference. Image guidance eliminates fluoroscopic radiation exposure and extensive soft-tissue dissection and facilitates both traditional and anatomic iliac bolt placement techniques.
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Total endoscopic or endoscopy-assisted surgical procedures are becoming more and more important for skull base surgery. In particular at the frontal skull base endoscopic procedures with planned opening of the subarachnoidal space have mostly replaced the microscope because of the good experiences in functional endoscopic sinus surgery (FESS). The advantages for the patients of endoscopic procedures with planned opening of the subarachnoidal space measured by criteria, such as mortality, morbidity or recurrence rate are unclear due to a lack of valid study data according to the criteria of evidence-based medicine.
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At present, modern skull base surgery is a highly sophisticated interdisciplinary collaboration of various diagnostic and therapeutic disciplines. The overall goal is the treatment of complex tumorous, traumatic, vascular and inflammatory processes or developmental disorders of the skull base with preservation of function. The paper presents modern concepts, procedures and minimally invasive strategies in skull base surgery and also critically discusses the current trend to endoscopic and robot-assisted surgical techniques.
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Oper Orthop Traumatol · Apr 2011
[Computer-assisted surgery (CAS)-guided correction arthrodesis of the ankle and subtalar joint with retrograde nail fixation].
Restoration of a stable and plantigrade foot in deformities of the ankle and/or hindfoot and concomitant degenerative changes at the ankle and subtalar joint. ⋯ From 1 September 2006 to 31 August 2008, 14 correction arthrodeses were performed. The accuracy was assessed by intraoperative 3D imaging. All achieved angles/translations were within a maximum deviation of 2°/mm when compared to the planned correction. Complications that were associated with CAS were not observed. In all 14 cases completing follow-up, timely fusion was registered.