All patients underwent posterior pedicle screw fixation with or without interbody fusion. A surgical procedure was proposed for patients who presented with low-back pain and/or radiating lower-extremity pain symptoms that did not respond to conservative treatment such as medication, physical therapy, and radicular and/or epidural injection. Surgical procedures were performed under general anesthesia and with the patient in a prone position on a radiolucent table. The pedicle screw placement was achieved with the aid of intraoperative radiographic 3D imaging (O-arm Surgical Imaging System and StealthStation; Medtronic, Inc.). Accurate decompression was performed under microscopic view. All intersomatic cages were placed via a posterolateral approach. The decision for a second surgical treatment for patients who developed ASD was made for those who benefited from the first surgery. In these individuals, after a symptom-free period, radicular symptoms or low-back pain refractory to conservative treatment reoccurred, with radiological imaging compatible with a diagnosis of ASD.
Stealthstation
Manufactured by Medtronic
Sourced in United States
The StealthStation is a surgical navigation system developed by Medtronic. It provides real-time, three-dimensional visualization and guidance during surgical procedures. The system uses advanced imaging technologies to assist surgeons in precisely locating and accessing targeted anatomical structures.
Automatically generated - may contain errors
Lab products found in correlation
5 ala, by Medac (2 mentions)
Achieva 1.5t, by Philips (2 mentions)
O arm surgical imaging system, by Medtronic (1 mentions)
4 mm 0 endoscope, by Storz (1 mentions)
Opmi pentero, by Zeiss (1 mentions)
O arm imaging system, by Medtronic (1 mentions)
O arm, by Medtronic (1 mentions)
Libra dbs system, by Abbott (1 mentions)
Visualase, by Medtronic (1 mentions)
3t mri scanner, by Philips (1 mentions)
Polaris spectra, by Northern Digital (1 mentions)
37 protocols using stealthstation
1
Posterior Pedicle Screw Fixation for ASD
2
Stereotactic CT Measurements Protocol
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
For each specimen, a 0.7 mm thick axial spiral CT scan was obtained before and after dissection. Stereotactic measurements using neuronavigation (Stealth Station; Medtronic Sofamor Danek, Memphis, TN, USA) were performed on each target of interest. The measurements consisted of 3-dimensional positional information with Cartesian coordinates X, Y, and Z. All retrieved data were computed using Microsoft Excel spreadsheet software (Microsoft Office Excel; Microsoft Corp., Redmond, Washington, USA) for further analysis.
3
Extracellular Recording of Single Neurons
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
The extracellular potentials corresponding to single-neuron activity were recorded from the tips of 38-μm-diameter microwires implanted along with a clinical depth electrode (Ad-Tech Medical Corporation, Racine, WI) used to record clinical field potentials (48 (link), 49 (link)). Each depth electrode contained a bundle of nine microwires, implanted stereotactically (Medtronic Stealth Station) using a 3 T structural MRI. Target locations were chosen by selecting a trajectory for the depth electrode which positioned the low-impedance contacts along the shaft of the depth electrode in clinically mandated areas with the tip of the depth electrode ∼3 mm superficial from the deepest part of a target structure, such as the hippocampus. Electrodes were inserted through a skull bolt with a custom frame to align the depth electrode along the chosen trajectory. The error in tip placement using this technique is estimated to be ±2 mm, based on manual inspection of preoperative MRI and postoperative computed tomography in several cases, and is similar to that previously reported) for a laterotemporal approach (50 (link)). While this accuracy is insufficient to determine subfields within the hippocampus or nuclei within the amygdala, it does ensure that the microwires are within the target brain area.
4
Maximizing Glioma Tumor Resection
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
All patients were on stable doses (8 mg/day) of dexamethasone. Tumor resection was performed with the guidance of neuronavigation (StealthStation, Medtronic) and 5-aminolevulinic acid fluorescence with other adjuvants, e.g., cortical and subcortical mapping, awake surgery, and intraoperative electrophysiology, to allow for maximal safe resection. Extent of resection was assessed according to the postoperative MRI scans within 72 hours as complete resection, partial resection of contrast-enhancing tumor or biopsy [16] (link).
Patients received adjuvant therapy post-operatively according to their performance status. All patients were followed up according to the criteria of response assessment in neuro-oncology (RANO) [17] (link), incorporating clinical and radiological criteria. Survivals were analyzed retrospectively in some cases when pseudoprogression was suspected if new contrast enhancement appeared within first 12 weeks after completing chemoradiotherapy.
Patients received adjuvant therapy post-operatively according to their performance status. All patients were followed up according to the criteria of response assessment in neuro-oncology (RANO) [17] (link), incorporating clinical and radiological criteria. Survivals were analyzed retrospectively in some cases when pseudoprogression was suspected if new contrast enhancement appeared within first 12 weeks after completing chemoradiotherapy.
5
Maximal Safe Resection for Gliomas
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
All patients underwent maximal safe surgery using 5-aminolevulinic acid fluorescence (5-ALA, Medac) and neuro-navigation (StealthStation, Medtronic). For maximal safe resection in both study cohorts, where appropriate, other adjuvants, including awake surgery, cortical and subcortical mapping and intraoperative electrophysiology were also applied. According to the postoperative MRI within 72 h, the extent of resection was assessed as complete or partial resection of enhancing tumour or biopsy. Adjuvant therapy was determined by the multidisciplinary team as standard based on patient postoperative status. All patients were followed up according to the response assessment in neuro-oncology criteria. Overall survival (OS) and progression-free survival (PFS) were used as endpoints.
6
Surgical Biopsy Techniques for Brain Lesions
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Three surgical biopsy techniques were used (Table 1 ). Needle biopsy was performed via a burr hole using a dedicated frameless system (StealthStation, Medtronic, Minneapolis, MN, USA). Open biopsy was performed via a mini-craniotomy with standard microsurgical technique.
Neuroendoscopic biopsies for tumors located within or in close proximity with the ventricular system were performed via a burr hole using a ventricular neuroendoscope (Decq endoscope, Karl Storz, Tuttingen, Germany) with a 30° lens. As per standard procedure, three to six samples of the tumor were taken 4 mm apart, and one of them was sent for a frozen histological examination to rule out non-pathological tissue.
Neuroendoscopic biopsies for tumors located within or in close proximity with the ventricular system were performed via a burr hole using a ventricular neuroendoscope (Decq endoscope, Karl Storz, Tuttingen, Germany) with a 30° lens. As per standard procedure, three to six samples of the tumor were taken 4 mm apart, and one of them was sent for a frozen histological examination to rule out non-pathological tissue.
7
MRI-Guided Endoscopic Pituitary Surgery
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
MRI-based optic stereotactic navigation (Stealth Station, Medtronic, Inc., Minneapolis, MI, USA) was used in selected cases. The procedure was visualized with a 4 mm 0° endoscope (Karl Storz Endoscopy, Tuttlingen, Germany) attached to a high-definition (1080p) endoscopy camera (A3, Karl Storz Endoscopy) and monitor. A binostril approach was used in every case. The principal senior surgeon holds the camera during the procedure and is assisted by a second surgeon. If necessary, thirty-degree scopes were utilized at the end of the procedure to inspect the cavernous walls and suprasellar cistern for residual tumor [56 (link),57 (link),58 (link),59 (link),60 (link),61 (link),62 (link)].
8
Surgical Targeting for STN in Parkinson's
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
For STN localization, the indirect method was based on the anterior–posterior commissure (AC-PC) coordinates as the initial guidance, and the targeting was adjusted based on the anatomical visualization of the structures. Direct targeting was carried out as a preoperative MRI co-registered with intraoperative CT (iCT) sequences after the Leksell G frame was placed under LA. Images fusion was performed at the surgical planning system workstation (StealthStation, Medtronic or SinoPlan, Sinovation). The dorsolateral STN targeting and trajectories were directly visualized in the maximum diameter plane of the red nucleus relative to the line of the anterior–posterior commissure, as previously described [8 (link)].
9
Targeting and Implantation of Deep Brain Stimulation Electrodes
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Implantation is performed under general anesthesia using procedures identical to those for the first-phase surgery. Targeting is determined by fusing the pre-operative MRI and post-operative first-phase CT to the second-phase CT performed with the CRW frame in place. When 4 electrodes are implanted, the entry point is adjusted so that electrodes on the same side can be placed through the same burr-hole and fixed by surgical modification of the Stimloc(tm) plastic cap. Electrodes are buried beneath the skin. Figure 4 shows an example of targeting using the Medtronic StealthStation(tm) system in patient NMU4 (see Table 1 ).
10
Preoperative Planning for Intracranial Electrode Implantation
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
For all patients, the locations of implantation were preoperatively planned using the neuronavigation system (Stealth station [Medtronic]). Three-dimensional T1-weighted MRI, CT angiography, and CT venography were superimposed. An entry was defined as the planned point of insertion on the brain surface. A target was defined as the planned tip of the electrode. The entries and targets were planned to not cross arteries, veins, and the lateral ventricle. If possible, the angle of the trajectory was planned to not exceed 30° from the perpendicular line of the skull, because a higher angle may contribute to deviation errors.11 (link)) Distances from the target to the entry and the bone thickness on the trajectory were measured for each electrode (Fig. 1 ). Depth electrodes 1.5 mm in diameter and with 5-mm intervals between each of 6 or 10 contacts (Unique Medical, Tokyo, Japan) were used.
About PubCompare
Our mission is to provide scientists with the largest repository of trustworthy protocols and intelligent analytical tools, thereby offering them extensive information to design robust protocols aimed at minimizing the risk of failures.
We believe that the most crucial aspect is to grant scientists access to a wide range of reliable sources and new useful tools that surpass human capabilities.
However, we trust in allowing scientists to determine how to construct their own protocols based on this information, as they are the experts in their field.
Ready to get started?
Sign up for free.
Registration takes 20 seconds.
Available from any computer
No download required
Revolutionizing how scientists
search and build protocols!