Articles: neuronavigation.
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J Neurol Surg A Cent Eur Neurosurg · Jul 2013
Electromagnetic navigation-guided radiofrequency thermocoagulation in trigeminal neuralgia: technical note with three case reports.
To introduce our device and procedure of electromagnetic navigation (EMN)-guided radiofrequency thermocoagulation (RFT) in patients with trigeminal neuralgia (TN). ⋯ The EMN system is effective and highly accurate for RFT in patients with primary TN. Our modification of the registration system and surgical interface could make the RFT process more simple and accurate.
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J Neurol Surg A Cent Eur Neurosurg · Jul 2013
Neuronavigation-assisted endoscopic unilateral cyst fenestration for treatment of symptomatic septum pellucidum cysts.
Traditional surgical treatments for this rare disease include open surgical procedures and ventriculoperitoneal shunting. In 1995, endoscopic fenestration was first applied to treatment of cysts of the septum pellucidum (CSP). However, cyst fenestration generally takes a bilateral approach by making two burr holes leading to two fenestrations in the lateral walls of the cyst. Some disadvantages are related to bilateral fenestration. So far, there is no consensus on the surgical indications, the endoscopic approaches, and techniques for CSPs. Based on our experience with 14 cases of symptomatic CSP treated with neuronavigation-assisted endoscopic unilateral cyst fenestration via a single burr hole, we discuss the operative indications and the utility of endoscope-assisted techniques in combination with neuronavigation. ⋯ The results after uni- and bilateral CSP fenestration show no significant difference. Avoiding damage of contralateral tissue, the surgical trauma in unilateral fenestration is less than in bilateral fenestration. Furthermore, the unilateral approach shortens the operation time. We believe that unilateral cyst fenestration is a better therapeutic option in symptomatic CSP.
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The aim of this study was to analyze the correlation between cervical range of motion and cervical pedicle screw (CPS) misplacement in cervical posterior spinal fusion surgery using a CT-based navigation system. ⋯ The precision of CPS placement in CT-based navigation surgery was evaluated. The misplacement rate in single-time multilevel registration increased to 23.4 % compared to 6.2 % for separate registration. As the distance increased between the registered level and the level of CPS insertion, the preoperative cervical ROM and the rate of CPS misplacement significantly increased. Thus, the rate of misplacement of CPSs is reduced when performing separate registration. Furthermore, when there is greater preoperative cervical ROM, separate registration would likely improve the safety and accuracy of CPS insertion.