1
|
Sharma A, Song R, Sarmey N, Harasimchuk S, Bulacio J, Pucci F, Rammo R, Bingaman W, Serletis D. Validation and Safety Profile of a Novel, Noninvasive Fiducial Attachment for Stereotactic Robotic-Guided Stereoelectroencephalography: A Case Series. Oper Neurosurg (Hagerstown) 2024:01787389-990000000-01137. [PMID: 38651866 DOI: 10.1227/ons.0000000000001148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 02/06/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND AND OBJECTIVES We developed, tested, and validated a novel, noninvasive, Leksell G frame-based fiducial attachment, for use in stereotactic registration for stereoelectroencephalography (sEEG). Use of the device increased the number of fixed reference points available for registration, while obviating the need for additional scalp incisions. We report here on our experience and safety profile of using the device. METHODS We collected registration data using the fiducial device across 25 adult and pediatric patients with epilepsy consecutively undergoing robotic-guided sEEG for invasive epilepsy monitoring, treated between May 2022 and July 2023. ROSA One Brain was used for trajectory planning and electrode implantation. Postoperative clinical and radiographic data were computed and quantified, including mean registration error for all patients. Entry point, target point (TP), and angular errors were measured. Descriptive statistics and correlation coefficients for error were calculated. RESULTS Twenty-five patients underwent robotic-guided sEEG implantation (11 patients, bilateral; 10 patients, left unilateral; 4 patients, right). The mean number of electrodes per patient was 18 ± 3. The average mean registration error was 0.77 ± 0.11 mm. All patients were implanted with Ad-Tech depth electrodes. No clinically relevant complications were reported. Analysis of trajectory error was performed on 446 electrodes. The median entry point error was 1.03 mm (IQR 0.69-1.54). The median TP error was 2.26 mm (IQR 1.63-2.93). The mean angular error was 0.03 radians (IQR 0.02-0.05). There was no significant correlation between root mean square error and lead error. Root mean square error did not appreciably change over time, nor were there any significant changes in average angular, entry point, or TP error metrics. CONCLUSION A novel, noninvasive, Leksell G frame-based fiducial attachment was developed, tested, and validated, facilitating O-arm-based stereotactic registration for sEEG. This simple innovation maintained an excellent accuracy and safety profile for sEEG procedures in epilepsy patients, with the added advantages of providing additional reference points for stereotactic registration, without requiring additional scalp incisions.
Collapse
Affiliation(s)
- Akshay Sharma
- Cleveland Clinic Epilepsy Center, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Ryan Song
- Lerner College of Medicine of Case Western Reserve University, Cleveland, Ohio, USA
| | - Nehaw Sarmey
- Cleveland Clinic Epilepsy Center, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Stephen Harasimchuk
- Cleveland Clinic Epilepsy Center, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Juan Bulacio
- Cleveland Clinic Epilepsy Center, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Francesco Pucci
- Department of Neurosurgery, University of Illinois, Chicago, Chicago, Illinois, USA
| | - Richard Rammo
- Cleveland Clinic Epilepsy Center, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - William Bingaman
- Cleveland Clinic Epilepsy Center, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Lerner College of Medicine of Case Western Reserve University, Cleveland, Ohio, USA
| | - Demitre Serletis
- Cleveland Clinic Epilepsy Center, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Lerner College of Medicine of Case Western Reserve University, Cleveland, Ohio, USA
| |
Collapse
|
2
|
van Baarsen KM, Woodley DEA, Slot KM, Woerdeman PA, Han KS, Hoving EW. Robotic alignment system Cirq (Brainlab) for navigated brain tumor biopsies in children. Childs Nerv Syst 2024; 40:99-108. [PMID: 37436473 DOI: 10.1007/s00381-023-06060-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 06/28/2023] [Indexed: 07/13/2023]
Abstract
INTRODUCTION The Cirq robotic alignment system (Brainlab, Munich, Germany) is a manually adjustable electronic arm with a robotic alignment module on its distal end, enabling the neurosurgeon to automatically and accurately align surgical instruments to a preoperatively planned trajectory. In this study, we share our first experiences and results using Cirq for intracranial tumor biopsy in children. METHODS From May 2021 until October 2022, all consecutive patients that underwent a brain tumor biopsy using Cirq were included and compared to a historical cohort of patients biopsied with the non-robotic system Varioguide (Brainlab, Munich, Germany). Patient-related data, tumor-related data, and surgery-related data were collected. Registration accuracy was calculated for different patient-to-image registration methods. Pre- and postoperative images were fused, and entry error, target error, and angulation error were calculated. RESULTS Thirty-seven patients, aged 1-19 years, were included (14 with Cirq and 23 with Varioguide). An integrated histopathological and molecular diagnosis was acquired in all cases. Patient-to-image registration was significantly more accurate when based on bone screw fiducials combined with intraoperative CT, as compared to surface matching or skin fiducials. The target error (Euclidian distance) was 5.3 mm for Cirq as compared to 8.3 mm for Varioguide, but this was not statistically significant. Entry error and angulation error were also not significantly different between both groups. CONCLUSION Intracranial biopsy with the Cirq robotic system is feasible and safe, and its accuracy does not differ from the Varioguide system.
Collapse
Affiliation(s)
- Kirsten M van Baarsen
- Department of Neuro-Oncology, Princess Máxima Center for Pediatric Oncology, Heidelberglaan 25, 3584 CS, Utrecht, The Netherlands.
- Department of Pediatric Neurosurgery, Utrecht University Medical Center/Wilhelmina Children's Hospital, Utrecht, The Netherlands.
| | - Darwin E A Woodley
- Department of Neuro-Oncology, Princess Máxima Center for Pediatric Oncology, Heidelberglaan 25, 3584 CS, Utrecht, The Netherlands
- Department of Pediatric Neurosurgery, Utrecht University Medical Center/Wilhelmina Children's Hospital, Utrecht, The Netherlands
| | - K Mariam Slot
- Department of Neurosurgery, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Peter A Woerdeman
- Department of Neuro-Oncology, Princess Máxima Center for Pediatric Oncology, Heidelberglaan 25, 3584 CS, Utrecht, The Netherlands
- Department of Pediatric Neurosurgery, Utrecht University Medical Center/Wilhelmina Children's Hospital, Utrecht, The Netherlands
| | - Kuo S Han
- Department of Neuro-Oncology, Princess Máxima Center for Pediatric Oncology, Heidelberglaan 25, 3584 CS, Utrecht, The Netherlands
- Department of Pediatric Neurosurgery, Utrecht University Medical Center/Wilhelmina Children's Hospital, Utrecht, The Netherlands
| | - Eelco W Hoving
- Department of Neuro-Oncology, Princess Máxima Center for Pediatric Oncology, Heidelberglaan 25, 3584 CS, Utrecht, The Netherlands
- Department of Pediatric Neurosurgery, Utrecht University Medical Center/Wilhelmina Children's Hospital, Utrecht, The Netherlands
| |
Collapse
|
3
|
Boop S, Barkley A, Emerson S, Prolo LM, Goldstein H, Ojemann JG, Hauptman JS. Robot-assisted stereoelectroencephalography in young children: technical challenges and considerations. Childs Nerv Syst 2022; 38:263-267. [PMID: 34716458 DOI: 10.1007/s00381-021-05384-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 09/29/2021] [Indexed: 11/29/2022]
Abstract
Robot-assisted stereoelectroencephalography (sEEG) is frequently employed to localize epileptogenic zones in patients with medically refractory epilepsy (MRE). Its methodology is well described in adults, but less so in children. Given the limited information available on pediatric applications, the objective is to describe the unique technical challenges and considerations of sEEG in the pediatric population. In this report, we describe our institutional experience with the technical aspects of robot-assisted sEEG in an exclusively pediatric epilepsy surgery unit, focusing on pre-, intra-, and post-operative nuances that are particular to the pediatric population. The pediatric population presents several unique challenges in sEEG, including reduced skull thickness relative to adults, incomplete neurologic development, and often special behavioral considerations. Pre-operative selection of putative epileptogenic zones requires careful multidisciplinary decision-making. Intraoperative attention to nuances in positioning, clamp selection, registration, and electrode placement are necessary. Activity considerations and electrode migration and removal are key post-operative considerations. Robot-assisted sEEG is a valuable tool in the armamentarium of techniques to characterize MRE. However, special considerations must be given to the pediatric population to optimize safety and efficacy.
Collapse
Affiliation(s)
- Scott Boop
- Department of Neurological Surgery, University of Washington, Seattle, WA, USA
| | - Ariana Barkley
- Department of Neurological Surgery, University of Washington, Seattle, WA, USA
| | - Samuel Emerson
- Department of Neurological Surgery, University of Washington, Seattle, WA, USA
| | - Laura M Prolo
- Department of Neurosurgery, Stanford University, Stanford, CA, USA
| | - Hannah Goldstein
- Department of Neurosurgery, Seattle Children's Hospital, 4800 Sand Point Way NE, OA.9.220, Seattle, WA, 98105, USA
| | - Jeffrey G Ojemann
- Department of Neurological Surgery, University of Washington, Seattle, WA, USA.,Department of Neurosurgery, Seattle Children's Hospital, 4800 Sand Point Way NE, OA.9.220, Seattle, WA, 98105, USA
| | - Jason S Hauptman
- Department of Neurological Surgery, University of Washington, Seattle, WA, USA. .,Department of Neurosurgery, Seattle Children's Hospital, 4800 Sand Point Way NE, OA.9.220, Seattle, WA, 98105, USA.
| |
Collapse
|
4
|
Christian EA, Widjaja E, Ochi A, Otsubo H, Holowka S, Donner E, Weiss SK, Go C, Drake J, Snead OC, Rutka JT. Utility of depth electrode placement in the neurosurgical management of bottom-of-sulcus lesions: technical note. J Neurosurg Pediatr 2019; 24:284-292. [PMID: 31252382 DOI: 10.3171/2019.4.peds18639] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 04/30/2019] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Small lesions at the depth of the sulcus, such as with bottom-of-sulcus focal cortical dysplasia, are not visible from the surface of the brain and can therefore be technically challenging to resect. In this technical note, the authors describe their method of using depth electrodes as landmarks for the subsequent resection of these exacting lesions. METHODS A retrospective review was performed on pediatric patients who had undergone invasive electroencephalography with depth electrodes that were subsequently used as guides for resection in the period between July 2015 and June 2017. RESULTS Ten patients (3-15 years old) met the criteria for this study. At the same time as invasive subdural grid and/or strip insertion, between 2 and 4 depth electrodes were placed using a hand-held frameless neuronavigation technique. Of the total 28 depth electrodes inserted, all were found within the targeted locations on postoperative imaging. There was 1 patient in whom an asymptomatic subarachnoid hemorrhage was demonstrated on postprocedural imaging. Depth electrodes aided in target identification in all 10 cases. CONCLUSIONS Depth electrodes placed at the time of invasive intracranial electrode implantation can be used to help localize, target, and resect primary zones of epileptogenesis caused by bottom-of-sulcus lesions.
Collapse
Affiliation(s)
- Eisha A Christian
- 1Department of Neurological Surgery, Kaiser Permanente Los Angeles Medical Center, Los Angeles, California
| | - Elysa Widjaja
- 2Department of Diagnostic Imaging, Division of Neuroradiology
| | - Ayako Ochi
- 3Department of Pediatrics, Division of Neurology; and
| | | | | | | | | | - Cristina Go
- 3Department of Pediatrics, Division of Neurology; and
| | - James Drake
- 4Department of Surgery, Division of Neurosurgery, The Hospital for Sick Children, University of Toronto, Ontario, Canada
| | | | - James T Rutka
- 4Department of Surgery, Division of Neurosurgery, The Hospital for Sick Children, University of Toronto, Ontario, Canada
| |
Collapse
|
5
|
A simple, inexpensive method for subcortical stereotactic targeting in nonhuman primates. J Neurosci Methods 2018; 305:89-97. [PMID: 29768185 DOI: 10.1016/j.jneumeth.2018.05.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 05/10/2018] [Accepted: 05/12/2018] [Indexed: 01/06/2023]
Abstract
BACKGROUND Many current neuroscience studies in large animal models have focused on recordings from cortical structures. While sufficient for analyzing sensorimotor systems, many processes are modulated by subcortical nuclei. Large animal models, such as nonhuman primates (NHP), provide an optimal model for studying these circuits, but the ability to target subcortical structures has been hampered by lack of a straightforward approach to targeting. NEW METHOD Here we present a method of subcortical targeting in NHP that uses MRI-compatible titanium screws as fiducials. The in vivo study used a cellular marker for histologic confirmation of accuracy. RESULTS Histologic results are presented showing a cellular stem cell marker within targeted structures, with mean errors ± standard deviations (SD) of 1.40 ± 1.19 mm in the X-axis and 0.9 ± 0.97 mm in the Z-axis. The Y-axis errors ± SD ranged from 1.5 ± 0.43 to 4.2 ± 1.72 mm. COMPARISON WITH EXISTING METHODS This method is easy and inexpensive, and requires no fabrication of equipment, keeping in mind the goal of optimizing a technique for implantation or injection into multiple interconnected areas. CONCLUSION This procedure will enable primate researchers to target deep, subcortical structures more precisely in animals of varying ages and weights.
Collapse
|
6
|
Dadey DYA, Kamath AA, Smyth MD, Chicoine MR, Leuthardt EC, Kim AH. Utilizing personalized stereotactic frames for laser interstitial thermal ablation of posterior fossa and mesiotemporal brain lesions: a single-institution series. Neurosurg Focus 2016; 41:E4. [DOI: 10.3171/2016.7.focus16207] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE
The precision of laser probe insertion for interstitial thermal therapy of deep-seated lesions is limited by the method of stereotactic guidance. The objective of this study was to evaluate the feasibility of customized STarFix 3D-printed stereotactic platforms to guide laser probe insertion into mesiotemporal and posterior fossa targets.
METHODS
The authors conducted a retrospective review of 5 patients (12–55 years of age) treated with laser interstitial thermal therapy (LITT) in which STarFix platforms were used for probe insertion. Bone fiducials were implanted in each patient's skull, and subsequent CT scans were used to guide the design of each platform and incorporate desired treatment trajectories. Once generated, the platforms were mounted on the patients' craniums and used to position the laser probe during surgery. Placement of the laser probe and the LITT procedure were monitored with intraoperative MRI. Perioperative and follow-up MRI were performed to identify and monitor changes in target lesions.
RESULTS
Accurate placement of the laser probe was observed in all cases. For all patients, thermal ablation was accomplished without intraoperative complications. Of the 4 patients with symptomatic lesions, 2 experienced complete resolution of symptoms, and 1 reported improved symptoms compared with baseline.
CONCLUSIONS
Customized stereotactic platforms were seamlessly incorporated into the authors' previously established LITT workflow and allowed for accurate treatment delivery.
Collapse
Affiliation(s)
- David Y. A. Dadey
- 1Department of Neurological Surgery, and
- 2Medical Scientist Training Program, Washington University School of Medicine, St. Louis, Missouri
| | | | | | | | | | | |
Collapse
|
7
|
Staged laser interstitial thermal therapy and topectomy for complete obliteration of complex focal cortical dysplasias. J Clin Neurosci 2016; 31:224-8. [DOI: 10.1016/j.jocn.2016.02.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 02/28/2016] [Indexed: 11/21/2022]
|
8
|
Gerard IJ, Kersten-Oertel M, Petrecca K, Sirhan D, Hall JA, Collins DL. Brain shift in neuronavigation of brain tumors: A review. Med Image Anal 2016; 35:403-420. [PMID: 27585837 DOI: 10.1016/j.media.2016.08.007] [Citation(s) in RCA: 149] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 08/22/2016] [Accepted: 08/23/2016] [Indexed: 10/21/2022]
Abstract
PURPOSE Neuronavigation based on preoperative imaging data is a ubiquitous tool for image guidance in neurosurgery. However, it is rendered unreliable when brain shift invalidates the patient-to-image registration. Many investigators have tried to explain, quantify, and compensate for this phenomenon to allow extended use of neuronavigation systems for the duration of surgery. The purpose of this paper is to present an overview of the work that has been done investigating brain shift. METHODS A review of the literature dealing with the explanation, quantification and compensation of brain shift is presented. The review is based on a systematic search using relevant keywords and phrases in PubMed. The review is organized based on a developed taxonomy that classifies brain shift as occurring due to physical, surgical or biological factors. RESULTS This paper gives an overview of the work investigating, quantifying, and compensating for brain shift in neuronavigation while describing the successes, setbacks, and additional needs in the field. An analysis of the literature demonstrates a high variability in the methods used to quantify brain shift as well as a wide range in the measured magnitude of the brain shift, depending on the specifics of the intervention. The analysis indicates the need for additional research to be done in quantifying independent effects of brain shift in order for some of the state of the art compensation methods to become useful. CONCLUSION This review allows for a thorough understanding of the work investigating brain shift and introduces the needs for future avenues of investigation of the phenomenon.
Collapse
Affiliation(s)
- Ian J Gerard
- McConnell Brain Imaging Center, MNI, McGill University, Montreal, Canada.
| | | | - Kevin Petrecca
- Department of Neurosurgery, McGill University, Montreal, Quebec, Canada
| | - Denis Sirhan
- Department of Neurosurgery, McGill University, Montreal, Quebec, Canada
| | - Jeffery A Hall
- Department of Neurosurgery, McGill University, Montreal, Quebec, Canada
| | - D Louis Collins
- McConnell Brain Imaging Center, MNI, McGill University, Montreal, Canada; Department of Neurosurgery, McGill University, Montreal, Quebec, Canada
| |
Collapse
|
9
|
Dolati P, Gokoglu A, Eichberg D, Zamani A, Golby A, Al-Mefty O. Multimodal navigated skull base tumor resection using image-based vascular and cranial nerve segmentation: A prospective pilot study. Surg Neurol Int 2015; 6:172. [PMID: 26674155 PMCID: PMC4665134 DOI: 10.4103/2152-7806.170023] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 08/31/2015] [Indexed: 12/03/2022] Open
Abstract
Background: Skull base tumors frequently encase or invade adjacent normal neurovascular structures. For this reason, optimal tumor resection with incomplete knowledge of patient anatomy remains a challenge. Methods: To determine the accuracy and utility of image-based preoperative segmentation in skull base tumor resections, we performed a prospective study. Ten patients with skull base tumors underwent preoperative 3T magnetic resonance imaging, which included thin section three-dimensional (3D) space T2, 3D time of flight, and magnetization-prepared rapid acquisition gradient echo sequences. Imaging sequences were loaded in the neuronavigation system for segmentation and preoperative planning. Five different neurovascular landmarks were identified in each case and measured for accuracy using the neuronavigation system. Each segmented neurovascular element was validated by manual placement of the navigation probe, and errors of localization were measured. Results: Strong correspondence between image-based segmentation and microscopic view was found at the surface of the tumor and tumor-normal brain interfaces in all cases. The accuracy of the measurements was 0.45 ± 0.21 mm (mean ± standard deviation). This information reassured the surgeon and prevented vascular injury intraoperatively. Preoperative segmentation of the related cranial nerves was possible in 80% of cases and helped the surgeon localize involved cranial nerves in all cases. Conclusion: Image-based preoperative vascular and neural element segmentation with 3D reconstruction is highly informative preoperatively and could increase the vigilance of neurosurgeons for preventing neurovascular injury during skull base surgeries. Additionally, the accuracy found in this study is superior to previously reported measurements. This novel preliminary study is encouraging for future validation with larger numbers of patients.
Collapse
Affiliation(s)
- Parviz Dolati
- Department of Neurosurgery, Harvard Medical School, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Abdulkerim Gokoglu
- Department of Neurosurgery, Harvard Medical School, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Daniel Eichberg
- Department of Neurosurgery, Harvard Medical School, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Amir Zamani
- Department of Neurosurgery, Harvard Medical School, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Alexandra Golby
- Department of Neurosurgery, Harvard Medical School, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Ossama Al-Mefty
- Department of Neurosurgery, Harvard Medical School, Brigham and Women's Hospital, Boston, Massachusetts, USA
| |
Collapse
|
10
|
Stieglitz LH, Raabe A, Beck J. Simple Accuracy Enhancing Techniques in Neuronavigation. World Neurosurg 2015; 84:580-4. [DOI: 10.1016/j.wneu.2015.03.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 03/15/2015] [Accepted: 03/16/2015] [Indexed: 10/23/2022]
|
11
|
Frame-based stereotactic neurosurgery in children under the age of seven: Freiburg University's experience from 99 consecutive cases. Clin Neurol Neurosurg 2014; 130:42-7. [PMID: 25576884 DOI: 10.1016/j.clineuro.2014.12.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 12/02/2014] [Accepted: 12/20/2014] [Indexed: 11/22/2022]
Abstract
INTRODUCTION Stereotactic frame-based procedures proved to be precise, safe and are of widespread use among adult patients. Regarding pediatric patients few data is available, therefore the use of the stereotactic frame remains controversial in this population. This motivated us to report our experience in stereotactic procedures in the youngest patients and review the literature concerning this subject. METHODS All frame-based procedures performed in patients younger than seven years in the University of Freiburg during the last 10 years were retrospectively analyzed and discussed under the light of the current literature. RESULTS The studied population was composed of 72 patients under the age of seven (mean 3.4±2.1 years-old), in whom 99 stereotactic procedures were performed. Brain tumor was present in 60 patients, hydrocephalus in five, cystic lesions in three, intracranial abscess in three and epilepsy in one patient. Stereotactic surgery was performed in 36 cases for brachytherapy, in 29 for biopsy, in 20 cases for cyst puncture, in eight for stereotactically guided endoscopic ventriculostomy, in five for catheter placement and in one case for depth electrode insertion. The overall complication rate was 5%. There were three cases of pin penetration through the skull, one case of frame dislocation after extensive cyst drainage and two skull fractures. Neurologic deficit related to frame fixation was observed in none of the cases. In disagreement with other authors, no case of pin related infection, air embolism, hematoma or CSF leak was observed. CONCLUSION Frame-based stereotactic neurosurgery is a safe technique also in the youngest patients. Rather than the simple use of torque-limiting devices training and experience in the manual adjustment of the stereotactic frame in children have been proven to be crucial factors that contribute to reducing pin related complications.
Collapse
|
12
|
Stieglitz LH, Fichtner J, Andres R, Schucht P, Krähenbühl AK, Raabe A, Beck J. The silent loss of neuronavigation accuracy: a systematic retrospective analysis of factors influencing the mismatch of frameless stereotactic systems in cranial neurosurgery. Neurosurgery 2013; 72:796-807. [PMID: 23334280 DOI: 10.1227/neu.0b013e318287072d] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Neuronavigation has become an intrinsic part of preoperative surgical planning and surgical procedures. However, many surgeons have the impression that accuracy decreases during surgery. OBJECTIVE To quantify the decrease of neuronavigation accuracy and identify possible origins, we performed a retrospective quality-control study. METHODS Between April and July 2011, a neuronavigation system was used in conjunction with a specially prepared head holder in 55 consecutive patients. Two different neuronavigation systems were investigated separately. Coregistration was performed with laser-surface matching, paired-point matching using skin fiducials, anatomic landmarks, or bone screws. The initial target registration error (TRE1) was measured using the nasion as the anatomic landmark. Then, after draping and during surgery, the accuracy was checked at predefined procedural landmark steps (Mayfield measurement point and bone measurement point), and deviations were recorded. RESULTS After initial coregistration, the mean (SD) TRE1 was 2.9 (3.3) mm. The TRE1 was significantly dependent on patient positioning, lesion localization, type of neuroimaging, and coregistration method. The following procedures decreased neuronavigation accuracy: attachment of surgical drapes (DTRE2 = 2.7 [1.7] mm), skin retractor attachment (DTRE3 = 1.2 [1.0] mm), craniotomy (DTRE3 = 1.0 [1.4] mm), and Halo ring installation (DTRE3 = 0.5 [0.5] mm). Surgery duration was a significant factor also; the overall DTRE was 1.3 [1.5] mm after 30 minutes and increased to 4.4 [1.8] mm after 5.5 hours of surgery. CONCLUSION After registration, there is an ongoing loss of neuronavigation accuracy. The major factors were draping, attachment of skin retractors, and duration of surgery. Surgeons should be aware of this silent loss of accuracy when using neuronavigation.
Collapse
|
13
|
Ray WZ, Ravindra VM, Schmidt MH, Dailey AT. Stereotactic navigation with the O-arm for placement of S-2 alar iliac screws in pelvic lumbar fixation. J Neurosurg Spine 2013; 18:490-5. [DOI: 10.3171/2013.2.spine12813] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Object
Pelvic fixation is a crucial adjunct to many lumbar fusions to avoid L5–S1 pseudarthrosis. It is useful for treatment of kyphoscoliosis, high-grade spondylolisthesis, L5–S1 pseudarthrosis, sacral tumors, lumbosacral dislocations, and osteomyelitis. The most popular method, iliac fixation, has drawbacks including hardware prominence, extensive muscle dissection, and the need for connection devices. S-2 alar iliac fixation provides a useful primary or salvage alternative. The authors describe their techniques for using stereotactic navigation for screw placement.
Methods
The O-arm Surgical Imaging System allowed for CT-quality multiplanar reconstructions of the pelvis, and registration to a StealthStation Treon provided intraoperative guidance. The authors describe their technique for performing computer-assisted S-2 alar iliac fixation for various indications in 18 patients during an 18-month period.
Results
All patients underwent successful bilateral placement of screws 80–100 mm in length. All placements were confirmed with a second multiplanar reconstruction. One screw was moved because of apparent anterior breach of the ilium. There were no immediate neurological or vascular complications due to screw placement. The screw length required additional instruments including a longer pedicle finder and tap.
Conclusions
Stereotactic guidance to navigate the placement of distal pelvic fixation with bilateral S-2 alar iliac fixation can be safely performed in patients with a variety of pathological conditions. Crossing the sacroiliac joint, choosing trajectory, and ensuring adequate screw length can all be enhanced with 3D image guidance. Long-term outcome studies are underway, specifically evaluating the sacroiliac joint.
Collapse
Affiliation(s)
- Wilson Z. Ray
- 1Department of Neurosurgery, Clinical Neurosciences Center; and
| | | | - Meic H. Schmidt
- 1Department of Neurosurgery, Clinical Neurosciences Center; and
- 2Spinal Oncology Service, Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah
| | - Andrew T. Dailey
- 1Department of Neurosurgery, Clinical Neurosciences Center; and
- 2Spinal Oncology Service, Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah
| |
Collapse
|
14
|
Widmann G, Schullian P, Ortler M, Bale R. Frameless stereotactic targeting devices: technical features, targeting errors and clinical results. Int J Med Robot 2011; 8:1-16. [DOI: 10.1002/rcs.441] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/09/2011] [Indexed: 01/06/2023]
Affiliation(s)
- Gerlig Widmann
- Medical University of Innsbruck; SIP-Department for Microinvasive Therapy, Department of Radiology; Austria
| | - Peter Schullian
- Medical University of Innsbruck; SIP-Department for Microinvasive Therapy, Department of Radiology; Austria
| | - Martin Ortler
- Medical University of Innsbruck; Department of Neurosurgery; Austria
| | - Reto Bale
- Medical University of Innsbruck; SIP-Department for Microinvasive Therapy, Department of Radiology; Austria
| |
Collapse
|