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Mattogno PP, Della Pepa GM, Menna G, Agostini L, Albanese A, Tamburrini G, Gaudino S, Olivi A, Doglietto F. Posterior Cranial Fossa Surgery with a 3 Dimensional Exoscope: A Single-Center Survey-Based Analysis and a Literature Review. World Neurosurg 2024; 189:e15-e26. [PMID: 38734169 DOI: 10.1016/j.wneu.2024.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Accepted: 05/05/2024] [Indexed: 05/13/2024]
Abstract
OBJECTIVE The potential advantages of exoscopy have been discussed theoretically for a long time. Such a concept holds significance, especially in the specific setting of the posterior cranial fossa (PCF), characterized by complex anatomy and long and narrow surgical corridors with relatively extreme working angles. We aimed to: 1) analyze the institutional preliminary case-based data on the use of the Robotic 3D Exoscope AEOS Aesculap in three different PCF approaches: retrosigmoid (RSA), midline suboccipital (MSA), and supracerebellar infratentorial via feedbacks was collected using a 20-point questionnaire, and 2) perform a comprehensive review of the literature concerning the use of EX in PCF surgery. RESULTS A total of 38 patients with neurosurgical pathologies underwent a neurosurgical procedure using the EX (Robotic 3D exoscope AEOS Aesculap) at our institution between January and March 2022. 21 surgeons were involved in the abovementioned PCF surgeries and answered the questionnaire. The main perceived advantages were in terms of ergonomics (67%), magnification (52%), and visualization of extreme angles. The main reported disadvantage was color vision (16, 76%), followed by manual mobility (24%). Concerning the review, the search of the literature yielded a total of 177 results. Upon full-text review, 17 articles were included, including 153 patients. CONCLUSIONS In conclusion, our study provides a comprehensive evaluation of the advantages and challenges associated with using the exoscope in posterior fossa surgery, setting a precedent as the first to report on a questionnaire-based analysis of exoscope utilization in this specific domain.
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Affiliation(s)
- Pier Paolo Mattogno
- Neurosurgery Unit, Department of Neurosciences, Fondazione Policlinico Universitario Agostino Gemelli, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Roma, Italy
| | - Giuseppe Maria Della Pepa
- Neurosurgery Unit, Department of Neurosciences, Fondazione Policlinico Universitario Agostino Gemelli, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Roma, Italy
| | - Grazia Menna
- Neurosurgery Unit, Department of Neurosciences, Catholic University School of Medicine, Rome, Italy.
| | - Ludovico Agostini
- Neurosurgery Unit, Department of Neurosciences, Fondazione Policlinico Universitario Agostino Gemelli, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Roma, Italy
| | - Alessio Albanese
- Neurosurgery Unit, Department of Neurosciences, Fondazione Policlinico Universitario Agostino Gemelli, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Roma, Italy; Neurosurgery Unit, Department of Neurosciences, Catholic University School of Medicine, Rome, Italy
| | - Gianpiero Tamburrini
- Neurosurgery Unit, Department of Neurosciences, Catholic University School of Medicine, Rome, Italy; Department of Neurosciences, Pediatric Neurosurgery, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Simona Gaudino
- Department of Radiological Sciences, Catholic University, School of Medicine, Rome, Italy
| | - Alessandro Olivi
- Neurosurgery Unit, Department of Neurosciences, Fondazione Policlinico Universitario Agostino Gemelli, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Roma, Italy; Neurosurgery Unit, Department of Neurosciences, Catholic University School of Medicine, Rome, Italy
| | - Francesco Doglietto
- Neurosurgery Unit, Department of Neurosciences, Fondazione Policlinico Universitario Agostino Gemelli, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Roma, Italy; Neurosurgery Unit, Department of Neurosciences, Catholic University School of Medicine, Rome, Italy
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Park W, Abramov I, On TJ, Xu Y, Castillo AL, Gonzalez-Romo NI, Guckler R, Preul MC. Computational image analysis of distortion, sharpness, and depth of field in a next-generation hybrid exoscopic and microsurgical operative platform. Front Surg 2024; 11:1418679. [PMID: 38983589 PMCID: PMC11231637 DOI: 10.3389/fsurg.2024.1418679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Accepted: 05/29/2024] [Indexed: 07/11/2024] Open
Abstract
Objective The development of surgical microscope-associated cameras has given rise to a new operating style embodied by hybrid microsurgical and exoscopic operative systems. These platforms utilize specialized camera systems to visualize cranial neuroanatomy at various depths. Our study aims to understand how different camera settings in a novel hybrid exoscope system influence image quality in the context of neurosurgical procedures. Methods We built an image database using captured cadaveric dissection images obtained with a prototype version of a hybrid (microsurgical/exoscopic) operative platform. We performed comprehensive 4K-resolution image capture using 76 camera settings across three magnification levels and two working distances. Computer algorithms such as structural similarity (SSIM) and mean squared error (MSE) were used to measure image distortion across different camera settings. We utilized a Laplacian filter to compute the overall sharpness of the acquired images. Additionally, a monocular depth estimation deep learning model was used to examine the image's capability to visualize the depth of deeper structures accurately. Results A total of 1,368 high-resolution pictures were captured. The SSIM index ranged from 0.63 to 0.85. The MSE was nearly zero for all image batches. It was determined that the exoscope could accurately detect both the sharpness and depth based on the Laplacian filter and depth maps, respectively. Our findings demonstrate that users can utilize the full range of camera settings available on the exoscope, including adjustments to aperture, color saturation, contrast, sharpness, and brilliance, without introducing significant image distortions relative to the standard mode. Conclusion The evolution of the camera incorporated into a surgical microscope enables exoscopic visualization during cranial base surgery. Our result should encourage surgeons to take full advantage of the exoscope's extensive range of camera settings to match their personal preferences or specific clinical requirements of the surgical scenario. This places the exoscope as an invaluable asset in contemporary surgical practice, merging high-definition imaging with ergonomic design and adaptable operability.
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Affiliation(s)
- Wonhyoung Park
- The Loyal and Edith Davis Neurosurgical Research Laboratory, Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, United States
| | - Irakliy Abramov
- The Loyal and Edith Davis Neurosurgical Research Laboratory, Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, United States
| | - Thomas J On
- The Loyal and Edith Davis Neurosurgical Research Laboratory, Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, United States
| | - Yuan Xu
- The Loyal and Edith Davis Neurosurgical Research Laboratory, Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, United States
| | - Andrea L Castillo
- The Loyal and Edith Davis Neurosurgical Research Laboratory, Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, United States
| | - Nicolas I Gonzalez-Romo
- The Loyal and Edith Davis Neurosurgical Research Laboratory, Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, United States
| | | | - Mark C Preul
- The Loyal and Edith Davis Neurosurgical Research Laboratory, Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, United States
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Kimura H, Shigeyasu M, Mori T, Yamashita S, Sasayama T. Next-Generation Exoscopic Surgery Featuring a Head-Mounted 3-Dimensional Display for Carotid Endarterectomy: 2-Dimensional Operative Video. Oper Neurosurg (Hagerstown) 2024:01787389-990000000-01144. [PMID: 38687023 DOI: 10.1227/ons.0000000000001189] [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: 03/01/2024] [Indexed: 05/02/2024] Open
Abstract
Recent advancements in medical equipment have led to the use of exoscopes in neurosurgery, thereby replacing conventional operating microscopes.1,2 These devices enable surgeons to work comfortably, even in situations requiring a tilted visual axis, and their effectiveness in carotid endarterectomy (CEA) for carotid artery stenosis has been reported.3,4 However, the placement of 3-dimensional (3D) monitoring devices is challenging.3,4 To address this issue, we present a case in which CEA was performed using ORBEYE with a 3D head-mounted display. This device allows continuous 3D observation of the surgical field on the preocular screen. Case: A 79-year-old man who had undergone chemoradiotherapy for left maxillary cancer 5 years earlier was referred to our department to undergo treatment for left internal carotid artery stenosis. Computed tomography angiography revealed severe left internal carotid artery stenosis with hypoechoic vulnerable plaques on carotid ultrasound. Carotid artery stenting was considered to be a better option than CEA. However, CEA yields better outcomes, especially in patients with vulnerable soft plaques.5 Left CEA was performed using ORBEYE with a 3D head-mounted display (HOGY Medical Co., Ltd.). The procedure was successfully performed under the observation of the head-mounted display, from skin incision to closure. Postoperatively, the patient had no neurological deficits but experienced transient hoarseness. Using an exoscope under the guidance of a head-mounted display represents a next-generation surgical technique that overcomes the limitations of traditional exoscopic surgery. The patient consented to the procedure, and the participants and any identifiable individuals consented to publication of his/her image. Our institutional review board approved this publication (#B230184).
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Affiliation(s)
- Hidehito Kimura
- Department of Neurosurgery, Kobe University Graduate School of Medicine, Kobe, Japan
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Begagić E, Pugonja R, Bečulić H, Selimović E, Skomorac R, Saß B, Pojskić M. The New Era of Spinal Surgery: Exploring the Use of Exoscopes as a Viable Alternative to Operative Microscopes-A Systematic Review and Meta-Analysis. World Neurosurg 2024; 182:144-158.e1. [PMID: 37951465 DOI: 10.1016/j.wneu.2023.11.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 11/04/2023] [Accepted: 11/06/2023] [Indexed: 11/14/2023]
Abstract
BACKGROUND The growing interest in exoscopic (EX) technology has prompted a comprehensive evaluation of its clinical, functional, and financial outcomes in neurosurgery. This systematic review and meta-analysis aimed to explore the utilization of EX in spine surgery and assess their safety, efficacy, and impact on surgical outcomes. METHODS A thorough literature review was conducted using PubMed, Scopus, and Embase databases in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. The study focused on articles concerning the application of EXs in spinal surgical procedures. The inclusion criteria encompassed various study designs presenting clinical data and intraoperative experiences related to EX utilization in spine surgery. RESULTS The meta-analysis included studies examining various aspects of EX utilization, such as intraoperative complications, video/image quality, surgical field visualization, ease of manipulation, ergonomic characteristics, educational utility, surgical duration, and team involvement. Findings indicated that EXs offered superior video quality and favorable ergonomic features. Comparable outcomes were observed in surgical duration, intraoperative blood loss, time to discharge, and postoperative pain levels between EX and conventional microscope approaches. CONCLUSIONS This study provides valuable insights into the utilization of EXs in spine surgery, demonstrating their potential advantages and comparable outcomes with conventional microscopes.
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Affiliation(s)
- Emir Begagić
- Department of General Medicine, School of Medicine, University of Zenica, Zenica, Bosnia and Herzegovina.
| | - Ragib Pugonja
- Department of General Medicine, School of Medicine, University of Zenica, Zenica, Bosnia and Herzegovina; Department of Anatomy, School of Medicine, University of Zenica, Zenica, Bosnia and Herzegovina
| | - Hakija Bečulić
- Department of Anatomy, School of Medicine, University of Zenica, Zenica, Bosnia and Herzegovina; Department of Neurosurgery, Canton Hospital Zenica, Zenica, Bosnia and Herzegovina
| | - Edin Selimović
- Department of Surgery, School of Medicine, University of Zenica, Zenica, Bosnia and Herzegovina
| | - Rasim Skomorac
- Department of Neurosurgery, Canton Hospital Zenica, Zenica, Bosnia and Herzegovina; Department of Surgery, School of Medicine, University of Zenica, Zenica, Bosnia and Herzegovina
| | - Benjamin Saß
- Clinic of Neurosurgery, University of Marburg, Marburg, Germany
| | - Mirza Pojskić
- Clinic of Neurosurgery, University of Marburg, Marburg, Germany
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Sáez-Alegre M, Ríos-Vicil C, Piper K, Najera E, Jean WC. Feasibility of exoscopic keyhole surgery: case series. NEUROSURGICAL FOCUS: VIDEO 2024; 10:V3. [PMID: 38283820 PMCID: PMC10821641 DOI: 10.3171/2023.10.focvid23116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Accepted: 10/20/2023] [Indexed: 01/30/2024]
Abstract
Keyhole approaches, performed with the endoscope, microscope, or exoscope, aim to minimize tissue traumatization while maximizing surgical view. The exoscope can provide better ergonomics than the microscope without restricting the space inside of the keyhole, as when using the endoscope. However, a frequently quoted reason for intraoperative exoscope-to-microscope conversion is the absence of sufficient light. In this video, the authors present 4 patients who underwent posterior fossa keyhole surgery without intraoperative conversion. The surgical objective was achieved in all patients without associated morbidity. After adequate adaptation, the exoscope allows sufficient light in the surgical field to perform safe keyhole surgery. The video can be found here: https://stream.cadmore.media/r10.3171/2023.10.FOCVID23116.
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Affiliation(s)
- Miguel Sáez-Alegre
- Division of Neurosurgery, Lehigh Valley Fleming Neuroscience Institute, Allentown, Pennsylvania
- Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota
| | - Christian Ríos-Vicil
- Division of Neurosurgery, Lehigh Valley Fleming Neuroscience Institute, Allentown, Pennsylvania
- Department of Surgery, Section of Neurosurgery, University of Puerto Rico, San Juan, Puerto Rico; and
| | - Keaton Piper
- Division of Neurosurgery, Lehigh Valley Fleming Neuroscience Institute, Allentown, Pennsylvania
- Department of Neurosurgery & Brain Repair, Morsani College of Medicine, University of South Florida, Tampa, Florida
| | - Edinson Najera
- Division of Neurosurgery, Lehigh Valley Fleming Neuroscience Institute, Allentown, Pennsylvania
| | - Walter C. Jean
- Division of Neurosurgery, Lehigh Valley Fleming Neuroscience Institute, Allentown, Pennsylvania
- Department of Neurosurgery & Brain Repair, Morsani College of Medicine, University of South Florida, Tampa, Florida
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Kusyk DM, Jeong S, Fitzgerald E, Kaye B, Li J, Williamson R, Yu AK. Surgical Posture with Microscopic Versus Exoscopic Visualization in Anterior Cervical Procedures. World Neurosurg 2024; 181:e562-e566. [PMID: 37914079 DOI: 10.1016/j.wneu.2023.10.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 10/18/2023] [Accepted: 10/19/2023] [Indexed: 11/03/2023]
Abstract
BACKGROUND Surgeons sustain deviated postures during procedures even with the use of loupes or an operative microscope. The surgical exoscope is a new intraoperative visualization technology designed to improve surgical ergonomics; however, no objective data exist to say that surgeon posture is significantly improved. This study aimed to quantify the difference in posture during standard anterior cervical spine procedures performed with the aid of an operative microscope versus an exoscope. METHODS This was a prospective cohort study utilizing a posture-sensing device at the surgeon's cervicothoracic junction. The primary outcome was the proportion of time under scope spent in a deviated posture, defined as greater than 10 degrees of deviation from neutral in the x- and y-axes (flexion/extension and lateral bending) of the surgeon's upper torso. Average deviation from baseline for the x-, y-, and z-axes (flexion/extension, lateral bending, and axial rotation, respectively), as well as the percentage of operative time spent with the visualization aid was also analyzed. RESULTS Overall, 37 anterior cervical procedures were recorded: 18 were performed with an exoscope and 19 with a microscope. Surgeons spent significantly more time in the deviated posture with the operative microscope than with the exoscope (32% vs. 8% with x-axis >10 deg, P <0.005; 20% vs. 6% with y-axis >10 deg, P <0.05). This is also reflected by the significant differences in the average deviation in the x- and y-axes, while under scope. CONCLUSIONS Utilizing the exoscope for anterior cervical spine procedures allows surgeons to spend less time in a deviated posture.
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Affiliation(s)
- Dorian M Kusyk
- Department of Neurosurgery, Allegheny Health Network, Pittsburgh, Pennsylvania, USA
| | - Seung Jeong
- Department of Neurosurgery, Allegheny Health Network, Pittsburgh, Pennsylvania, USA
| | - Ethan Fitzgerald
- Department of Neurosurgery, Allegheny Health Network, Pittsburgh, Pennsylvania, USA
| | - Brandon Kaye
- College of Osteopathic Medicine, Nova Southeastern University, Davie, Florida, USA
| | - Jenna Li
- Singer Research Institute, Allegheny Health Network, Pittsburgh, Pennsylvania, USA
| | - Richard Williamson
- Department of Neurosurgery, Allegheny Health Network, Pittsburgh, Pennsylvania, USA.
| | - Alexander K Yu
- Department of Neurosurgery, Allegheny Health Network, Pittsburgh, Pennsylvania, USA
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Herta J, Rössler K, Dorfer C. Use of a 3D exoscope in microvascular decompression of the trigeminal nerve root. NEUROSURGICAL FOCUS: VIDEO 2024; 10:V14. [PMID: 38288292 PMCID: PMC10823416 DOI: 10.3171/2023.10.focvid23149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 10/20/2023] [Indexed: 01/31/2024]
Abstract
For microvascular decompression surgery, adequate visualization of the trigeminal nerve root is essential. Several visualization techniques with operating microscopes, endoscopes, a combination of both, and exoscopes have been described. In this video, the authors use a 4K 3D exoscope (ORBEYE) as it offers superb optical image quality with a high degree of magnification and illumination in the cerebellopontine angle. Other advantages are surgeon ergonomics, a very good depth of field for the entire operating team, and potentially evolving visualization technologies like narrow-band imaging-essential points for microvascular decompression surgery where the aim is to create the best possible visibility in a narrow corridor. The video can be found here: https://stream.cadmore.media/r10.3171/2023.10.FOCVID23149.
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Affiliation(s)
- Johannes Herta
- Department of Neurosurgery, Medical University of Vienna, Austria
| | - Karl Rössler
- Department of Neurosurgery, Medical University of Vienna, Austria
| | - Christian Dorfer
- Department of Neurosurgery, Medical University of Vienna, Austria
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Rizzi M, Castelli N, Cojazzi V, Innocenti N, Levi V, Didato G, Marucci G, Garbelli R, Nazzi V. 3D4K exoscope in epilepsy surgery: a seminal experience. Acta Neurochir (Wien) 2023; 165:3921-3925. [PMID: 37945998 DOI: 10.1007/s00701-023-05885-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 10/28/2023] [Indexed: 11/12/2023]
Abstract
BACKGROUND AND OBJECTIVES To report the progressive introduction of the exoscope (EX) from surface lesionectomy to antero-mesial temporal lobectomy (AMTL) in an epilepsy surgery practice. METHODS We describe a population of ten consecutive patients undergoing EX surgery, with a minimum follow-up of 6 months, that was compared to a similar population of patients referred to operative microscopic surgery (OM). RESULTS All surgeries were performed with the use of EX or OM alone. Transient neurological complications for surgery in eloquent regions were recorded in one patient for each population. Nine and seven patients undergoing, respectively, EX and OM surgery resulted in Engel class Ia (90% vs. 70%). The mean duration of EX and OM surgery resulted in 265.5 and 237.9 min, respectively, with a mean of 308.3 and 253.3 min for AMTL cases, respectively. CONCLUSIONS This preliminary study revealed that ORBEYE EX can be safe and effective in different types of epilepsy surgeries. The transition from OM to EX is fast, even though it is slower for the more challenging mesial temporal structure removal. Ergonomic and operative team interaction is improved by the use of EX. Our data need to be confirmed by larger studies.
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Affiliation(s)
- Michele Rizzi
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Nicolò Castelli
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.
| | - Vittoria Cojazzi
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Niccolò Innocenti
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Vincenzo Levi
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Giuseppe Didato
- Clinical and Experimental Epileptology and Sleep Disorders Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Gianluca Marucci
- Neuropathology Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Rita Garbelli
- Clinical Epileptology and Experimental Neurophysiology Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Vittoria Nazzi
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
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Hashikata H, Maki Y, Futamura G, Yoshimoto N, Goto M, Hayashi H, Nishida N, Iwasaki K, Toda H. Functionality and Usability of the Exoscope in Microvascular Decompression for Hemifacial Spasm and Trigeminal Neuralgia. World Neurosurg 2023; 179:e539-e548. [PMID: 37683924 DOI: 10.1016/j.wneu.2023.08.138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 08/28/2023] [Accepted: 08/31/2023] [Indexed: 09/10/2023]
Abstract
BACKGROUND Studies on the functionality and usability of the exoscope in neurosurgical procedures against surgical microscopes (SMs) are limited. This study aimed to examine the functionality and usability of the exoscope during microvascular decompression (MVD) surgery. METHODS Seven neurosurgeons evaluated the usefulness of a 4 K, 3-dimension digital exoscope in MVD by answering a questionnaire. The questionnaire inquired about the functionality and usability of the exoscope by utilizing a visual analog scale (VAS; 1-10). A score of 5 on VAS was equivalent to the corresponding quality of the SM. The learning effect of the exoscope was evaluated using mean VAS scores in the first and last 3 cases for each neurosurgeon. RESULTS The functionality of the exoscope in MVD was superior to that in SM (P < 0.001). In the last 3 surgeries, the mean VAS scores of the exoscope were excellent in terms of ease of arm handling, exchange of surgical instruments, ease of surgical procedure, and intraoperative physical stress. The mean VAS scores of the exoscope in intraoperative asthenopia were significantly higher than those of the SM (P < 0.001). No statistical significance was found in operation time, discharge outcome, and 1-year post-surgery outcome between MVD performed using the exoscope and SM. CONCLUSIONS Neurosurgeons may experience reduced stress levels during MVD when using the exoscope. As the outcome of MVD using the exoscope did not demonstrate a statistical difference compared with MVD using the SM, the exoscope may prove to be a useful tool for performing MVD.
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Affiliation(s)
- Hirokuni Hashikata
- Department of Neurosurgery, Medical Research Institute Kitano Hospital, PIIF Tazuke-Kofukai, Osaka, Japan.
| | - Yoshinori Maki
- Department of Neurosurgery, Hikone Chuo Hospital, Hikone, Japan; Department of Rehabilitation, Hikari Hospital, Otsu, Japan
| | - Gen Futamura
- Department of Neurosurgery, Medical Research Institute Kitano Hospital, PIIF Tazuke-Kofukai, Osaka, Japan
| | - Naoya Yoshimoto
- Department of Neurosurgery, Medical Research Institute Kitano Hospital, PIIF Tazuke-Kofukai, Osaka, Japan
| | - Masanori Goto
- Department of Neurosurgery, Medical Research Institute Kitano Hospital, PIIF Tazuke-Kofukai, Osaka, Japan
| | - Hideki Hayashi
- Department of Neurosurgery, Medical Research Institute Kitano Hospital, PIIF Tazuke-Kofukai, Osaka, Japan
| | - Namiko Nishida
- Department of Neurosurgery, Medical Research Institute Kitano Hospital, PIIF Tazuke-Kofukai, Osaka, Japan
| | - Koichi Iwasaki
- Department of Neurosurgery, Medical Research Institute Kitano Hospital, PIIF Tazuke-Kofukai, Osaka, Japan
| | - Hiroki Toda
- Department of Neurosurgery, Medical Research Institute Kitano Hospital, PIIF Tazuke-Kofukai, Osaka, Japan
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Larkin R, Langlie J, Roldan LP, Thielhelm T, Mahfood C, Chiossone JA. Binocular microscopes versus exoscopes: Experiences and performance in simulated otologic surgery. Laryngoscope Investig Otolaryngol 2023; 8:1337-1344. [PMID: 37899868 PMCID: PMC10601593 DOI: 10.1002/lio2.1114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 06/11/2023] [Accepted: 06/30/2023] [Indexed: 10/31/2023] Open
Abstract
Objectives Exoscopes represent a promising alternative to conventional binocular microscopes (OM) in otology offering potential advantages such as enhanced ergonomics and a more compact device design. While previous research has demonstrated the effectiveness of exoscopes in various surgical specialties, their objective assessment in the field of otology remains limited. Therefore, this investigation aims to assess task-based efficiency associated with exoscopes in the field of otology by use of simulated surgical models. Methods A prospective cross-over study design was used to compare an OM to an exoscope in otolaryngology residents and medical students. Participants performed five tasks on 3D-printed ear models using both the exoscope and OM. Data collection included completion time, frequency of predefined errors, mental effort, and user experience. Subgroup analysis was performed based on level of experience. Results Fourteen students and fifteen residents participated. Participants completed four of five tasks faster with the OM and there was no difference in number of errors committed. When separated by surgical experience, residents performed four of five tasks faster using the OM while students completed one of five tasks faster with the OM. Students committed more errors with the exoscope for one task with no difference in errors for residents. There was no difference in perceived difficulty performing tasks with either visualization system. Exit survey results showed more favorable opinions of the OM among residents and more favorable opinions of the exoscope among students. Conclusions The exoscope permits successful performance in simulated otologic tasks. Task performance and user experience between operative microscopes and exoscopes differ based on level of surgical experience. Level of Evidence 2.
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Affiliation(s)
- Riley Larkin
- University of Miami Miller School of MedicineMiamiFloridaUSA
| | - Jake Langlie
- University of Miami Miller School of MedicineMiamiFloridaUSA
| | - Luis Pablo Roldan
- Department of OtolaryngologyJackson Memorial Health SystemMiamiFloridaUSA
- Department of OtolaryngologyUniversity of Miami Miller School of MedicineMiamiFloridaUSA
| | - Torin Thielhelm
- Department of OtolaryngologyUniversity of Miami Miller School of MedicineMiamiFloridaUSA
- Department of OtolaryngologyMount Sinai Health SystemNew York CityNew YorkUSA
| | | | - Juan A. Chiossone
- Department of OtolaryngologyJackson Memorial Health SystemMiamiFloridaUSA
- Department of OtolaryngologyUniversity of Miami Miller School of MedicineMiamiFloridaUSA
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11
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Della Pepa GM, Mattogno P, Menna G, Agostini L, Olivi A, Doglietto F. A Comparative Analysis with Exoscope and Optical Microscope for Intraoperative Visualization and Surgical Workflow in 5-Aminolevulinic Acid-Guided Resection of High-Grade Gliomas. World Neurosurg 2023; 170:133-137. [PMID: 36400360 DOI: 10.1016/j.wneu.2022.11.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 11/10/2022] [Indexed: 11/17/2022]
Abstract
BACKGROUND The exoscope has been proposed as a valid tool in 5-aminolevulinic acid-guided resection of high-grade gliomas. However, it is not clear if, beyond ergonomics, the exoscope provides a real benefit over the optical microscope (OM). The aim of this study was to compare the exoscope with the OM in terms of surgical visualization and workflow in 5-aminolevulinic acid-guided brain surgery. METHODS Surgical videos of patients diagnosed with histopathologically confirmed, Shinoda stage I, high-grade gliomas who underwent surgery in from January to April 2022 were studied. Visualization under a 5-aminolevulinic acid blue filter for vessels, parenchyma, surgical instruments, and fluorescence was categorized for both superficial and deep fields. The following data were also recorded: median number of switches between white light and blue filter, average duration per switch, and amount of work under blue filter. RESULTS There were 5 surgeries performed under OM guidance and 5 performed under exoscope guidance. Under a blue filter, the exoscope was significantly better than the OM in visualizing vessels, parenchyma, and surgical instruments for both superficial and deep surgical fields. The median number of switches between blue and white light was lower compared with the OM. Both median switch duration and percentage of work under the blue filter were superior when using the exoscope. CONCLUSIONS Within the limitations of a preliminary analysis, use of the exoscope in fluorescence-guided surgery for high-grade gliomas provided significant advantages in terms of visualization of the surgical field under a blue filter and linearity of surgical flow.
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Affiliation(s)
- Giuseppe Maria Della Pepa
- Department of Neurosurgery, Fondazione Policlinico Universitario A. Gemelli IRCCS Università Cattolica del Sacro Cuore, Rome, Italy; Department of Neuroscience, Neurosurgery Section, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Pierpaolo Mattogno
- Department of Neurosurgery, Fondazione Policlinico Universitario A. Gemelli IRCCS Università Cattolica del Sacro Cuore, Rome, Italy; Department of Neuroscience, Neurosurgery Section, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Grazia Menna
- Department of Neurosurgery, Fondazione Policlinico Universitario A. Gemelli IRCCS Università Cattolica del Sacro Cuore, Rome, Italy; Department of Neuroscience, Neurosurgery Section, Università Cattolica del Sacro Cuore, Rome, Italy.
| | - Ludovico Agostini
- Department of Neurosurgery, Fondazione Policlinico Universitario A. Gemelli IRCCS Università Cattolica del Sacro Cuore, Rome, Italy; Department of Neuroscience, Neurosurgery Section, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Alessandro Olivi
- Department of Neurosurgery, Fondazione Policlinico Universitario A. Gemelli IRCCS Università Cattolica del Sacro Cuore, Rome, Italy; Department of Neuroscience, Neurosurgery Section, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Francesco Doglietto
- Department of Neurosurgery, Fondazione Policlinico Universitario A. Gemelli IRCCS Università Cattolica del Sacro Cuore, Rome, Italy; Department of Neuroscience, Neurosurgery Section, Università Cattolica del Sacro Cuore, Rome, Italy
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12
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SHIBANO A, KIMURA H, TATEHARA S, FURUKAWA T, INOUE K, FUJITA Y, NAGASHIMA H, YAMANISHI S, NOMURA T, NIBU KI, SASAYAMA T. Efficacy of a High-definition Three-dimensional Exoscope in Simultaneous Transcranial and Endoscopic Endonasal Surgery: A Case Report. NMC Case Rep J 2022; 9:243-247. [PMID: 36128056 PMCID: PMC9458158 DOI: 10.2176/jns-nmc.2022-0081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 06/08/2022] [Indexed: 11/23/2022] Open
Abstract
Owing to recent advances in medical optical technology, a high-definition (4K) three-dimensional (3D) exoscope has been developed as an alternative tool to using conventional microscopes for microscopic surgery, and its efficacy for neurosurgery has been reported. We report a case who underwent simultaneous surgery aiming for en bloc resection of an anterior skull base malignancy with concurrent exoscopic transcranial and endoscopic endonasal approaches using a 4K 3D exoscope. The patient was a 76-year-old woman who underwent en bloc resection for an anterior skull base olfactory neuroblastoma 13 years ago. After confirming the recurrence of progressive olfactory neuroblastoma, tumor resection was again decided to be performed. As with the first procedure, surgery was performed in an en bloc manner, using both transcranial and endonasal approaches. Exoscope provided enough space above the surgical field to allow us to perform transcranial and endonasal surgeries simultaneously. Moreover, the surgeons could maintain a comfortable posture throughout the procedure, and total tumor removal was successfully achieved without any abnormal event. To our knowledge, this is the first report of the introduction of an exoscope aiming for en bloc resection of an anterior skull base malignancy while performing simultaneous surgery with both transcranial and endonasal approaches. We believe that the more cases are accumulated, the more efficacy of a 4K 3D exoscope will be elucidated.
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Affiliation(s)
- Ayaka SHIBANO
- Department of Neurosurgery, Kobe University Graduate School of Medicine
| | - Hidehito KIMURA
- Department of Neurosurgery, Kobe University Graduate School of Medicine
| | - Shun TATEHARA
- Department of Otolaryngology-Head and Neck Surgery, Kobe University Graduate School of Medicine
| | - Tatsuya FURUKAWA
- Department of Otolaryngology-Head and Neck Surgery, Kobe University Graduate School of Medicine
| | - Kazuki INOUE
- Department of Otolaryngology-Head and Neck Surgery, Kobe University Graduate School of Medicine
| | - Yuichi FUJITA
- Department of Neurosurgery, Kobe University Graduate School of Medicine
| | - Hiroaki NAGASHIMA
- Department of Neurosurgery, Kobe University Graduate School of Medicine
| | | | - Tadashi NOMURA
- Department of Plastic Surgery, Kobe University Graduate School of Medicine
| | - Ken-ichi NIBU
- Department of Otolaryngology-Head and Neck Surgery, Kobe University Graduate School of Medicine
| | - Takashi SASAYAMA
- Department of Neurosurgery, Kobe University Graduate School of Medicine
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Motov S, Bonk MN, Krauss P, Wolfert C, Steininger K, Picht T, Onken J, Shiban E. Implementation of a three-dimensional (3D) robotic digital microscope (AEOS) in spinal procedures. Sci Rep 2022; 12:22553. [PMID: 36581741 PMCID: PMC9800412 DOI: 10.1038/s41598-022-27082-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 12/26/2022] [Indexed: 12/31/2022] Open
Abstract
Three-dimensional exoscopes have been designed to overcome certain insufficiencies of operative microscopes. We aimed to explore the clinical use in various spinal surgeries. We performed surgery on patients with different spine entities in a neurosurgical department according to the current standard operating procedures over a 4-week period of time. The microsurgical part has been performed with Aesculap AEOS 3D microscope. Three neurosurgeons with different degree of surgical expertise completed a questionnaire with 43 items based on intraoperative handling and feasibility after the procedures. We collected and analyzed data from seventeen patients (35% male/65% female) with a median age of 70 years [CI 47-86] and median BMI of 25.8 kg/m2 [range 21-33]. We included a variety of spinal pathologies (10 degenerative, 4 tumor and 3 infectious cases) with different level of complexity. Regarding setup conflicts we observed issues with adjustment of the monitor position or while using additional equipment (e.g. fluoroscopy in fusion surgery) (p = 0.007/p = 0.001). However image resolution and sharpness as well as 3D-depth perception were completely satisfactory for all surgeons in all procedures. The utilization of the exoscopic arm was easy for 76.5% of the surgeons, and all of them declared a significant improvement of the surgical corridor. The 3D-exoscope implementation appears to achieve very satisfactory results in spinal procedures especially with minimally invasive approaches.
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Affiliation(s)
- Stefan Motov
- grid.413349.80000 0001 2294 4705Klinik für Neurochirurgie, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Maximilian Niklas Bonk
- grid.419801.50000 0000 9312 0220Klinik für Neurochirurgie, Universitätsklinikum Augsburg, Augsburg, Germany
| | - Philipp Krauss
- grid.419801.50000 0000 9312 0220Klinik für Neurochirurgie, Universitätsklinikum Augsburg, Augsburg, Germany
| | - Christina Wolfert
- grid.419801.50000 0000 9312 0220Klinik für Neurochirurgie, Universitätsklinikum Augsburg, Augsburg, Germany
| | - Kathrin Steininger
- grid.419801.50000 0000 9312 0220Klinik für Neurochirurgie, Universitätsklinikum Augsburg, Augsburg, Germany
| | - Thomas Picht
- grid.6363.00000 0001 2218 4662Klinik für Neurochirurgie, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Julia Onken
- grid.6363.00000 0001 2218 4662Klinik für Neurochirurgie, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Ehab Shiban
- grid.419801.50000 0000 9312 0220Klinik für Neurochirurgie, Universitätsklinikum Augsburg, Augsburg, Germany
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Kueckelhaus M, Kolbenschlag J, Kirschniak A, Beier JP, Enzinger S, Harder Y, Kneser U, Lehnhardt M, Rab M, Daigeler A. [New Technologies in Microsurgery: Potential, Indications and Economical Aspects - Report of the Consensus Workshop of the German-Speaking Society for Microsurgery of Peripheral Nerves and Vessels (DAM)]. HANDCHIR MIKROCHIR P 2022; 54:507-515. [PMID: 36283407 DOI: 10.1055/a-1942-6510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Recently, several new technologies to support microsurgeons have received European market approval. This article summarizes and discusses the impressions of an expert panel to classify the potential of new technologies in terms of benefits for the surgeon, specific indications and economic aspects during the 42nd Annual Meeting of the German-speaking Working Group for Microsurgery of Peripheral Nerves and Vessels (DAM) in Graz, Austria. In general, the expert panel addressed the principles and prerequisite for the successful establishment of new technologies and, in particular, novel optical and robotic systems. For this purpose, the current scientific literature was reviewed and initial clinical experience in the context of case series and retrospective studies was presented by the members of the expert panel. In the ensuing discussion, it was pointed out that it will first be necessary to identify patient subgroups in which the use of the new technologies is most likely to achieve a clinical benefit. Since clinical approval has already been granted for some systems, an approach can be developed for immediate clinical application from the simplest possible use to ever finer applications, i. e. from microsurgery to supermicrosurgery. Initially, funding for cost-intensive systems would presumably not be possible through revenue from standard care, but only through grants or subsidized clinical trials. In a final survey, the majority of meeting participants see the need for a price reduction of both visualization and surgical robotics technologies to enable widespread clinical establishment. Likewise, a majority of participants would prefer a combination of an exoscope or robotic microscope and a surgical robot for clinical use. The present consensus work addresses the development of a strategy for the effective establishment of new technologies, which should further increase the surgical quality of selected interventions.
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Affiliation(s)
- Maximilian Kueckelhaus
- Abteilung für Plastische und Rekonstruktive Medizin, Westfälische Wilhelms-Universität Münster Institut für Muskuloskelettale Medizin, Münster, Germany.,Abteilung für Plastische, Rekonstruktive und Ästhetische Chirurgie, Handchirurgie, Fachklinik Hornheide e V, Münster, Germany
| | - Jonas Kolbenschlag
- Universitätsklinik für Hand-, Plastische, Rekonstruktive und Verbrennungschirurgie, BG Klinik Tübingen, Tubingen, Germany
| | - Andreas Kirschniak
- Klinik für Allgemein- und Viszeralchirurgie, Kliniken Maria Hilf Mönchengladbach, Mönchengladbach, Germany
| | - Justus P Beier
- Department of Plastic Surgery, Hand Surgery - Burn Center, University Hospital RWTH Aachen, Aachen, Germany.,Universitätsklinik für Mund- Kiefer- und Gesichtschirurgie, Uniklinikum Salzburg - Christian-Doppler-Klinik, Salzburg, Austria
| | - Simon Enzinger
- Universitätsklinik für Mund- Kiefer- und Gesichtschirurgie, Uniklinikum Salzburg - Christian-Doppler-Klinik, Salzburg, Austria
| | - Yves Harder
- Plastic, Reconstructive and Aesthetic Surgery, Repubblica e Cantone Ticino Ente Ospedaliero Cantonale, Viganello - Lugano, Switzerland
| | - Ulrich Kneser
- Klinik für Hand, Plastische und Rekonstruktive Chirurgie Schwerbrandverletztenzentrum Klinik für Plastische Chirurgie, BG Unfallklinik Ludwigshafenund Ruprecht-Karls-Universität Heidelberg, Ludwigshafen, Germany
| | - Marcus Lehnhardt
- Klinik für Plastische Chirurgie und Handchirurgie, Schwerbrandverletztenzentrum, BG-Universitätsklinikum Bergmannsheil Bochum, Bochum, Germany
| | - Matthias Rab
- Abt. f. Plastische Ästhetische und Rekonstruktive Chirurgie, Klinikum Klagenfurt am Wörthersee, Klagenfurt, Austria
| | - Adrien Daigeler
- Klinik für Hand, Plastische, Rekonstruktive und Verbrennungschirurgie, BG Unfallklinik Tübingen an der Eberhard Karls Universität Tübingen, Tübingen, Germany
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15
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Das AK, Mani SK, Singh SK, Kumar S. High-definition two-dimension video telescope operating monitor-assisted brain and spinal surgery in pediatrics: is it an acceptable substitute for microscopic surgery? Childs Nerv Syst 2022; 38:2171-2177. [PMID: 35943568 DOI: 10.1007/s00381-022-05636-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 08/02/2022] [Indexed: 11/30/2022]
Abstract
PURPOSE Vision and ergonomics are crucial variables for successful outcomes during neurosurgery procedures. Two-dimension video telescope operating monitor (VITOM) exoscope has emerged as an alternative, which is cheaper than microscope. The aim of this study is to evaluate the clinical utility of 2D VITOM and to compare its merits and demerits with respect to microscope. METHODS VITOM 2D (Karl Storz, Germany) was used in 9 cranial and 5 spinal pediatric cases. While KINEVO operative microscope (Carl Zeiss, Germany) was used in 12 cranial and 6 spinal pediatric patients. All surgeries were performed by single senior neurosurgeon. The author's experience and opinions, as well as qualitative data, were analyzed. A comparison was made on image quality, illumination, field of view, and magnification of the operative field and ergonomics. RESULTS Seven out of 9 cranial pediatric cases were switched from VITOM 2D to operative microscope due to low-image definition in depth of cranial cavity. Poor visualization of bleeding source in surgical field was another major drawback. Two cranial cases in which exoscope were used exclusively, included superficial tumors. In all 5 spinal cases, VITOM 2D was successfully used without any major difficulty. The exoscope's advantages were observed in ergonomics and ease in switching to naked eyes, but the microscope's field of view, illumination, magnification, and user-friendliness was considered superior. CONCLUSION 2D-VITOM is best suited for spinal and superficial cranial tumors. However, a lot of modifications are to be done especially in optics to become a substitute for operative microscope.
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Affiliation(s)
- Anand Kumar Das
- All India Institute of Medical Sciences, Phulwari Sharif, Patna, Bihar, 801507, India
| | - Suraj Kant Mani
- All India Institute of Medical Sciences, Phulwari Sharif, Patna, Bihar, 801507, India
| | - Saraj Kumar Singh
- All India Institute of Medical Sciences, Phulwari Sharif, Patna, Bihar, 801507, India.
| | - Subhash Kumar
- All India Institute of Medical Sciences, Phulwari Sharif, Patna, Bihar, 801507, India
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Zhang Z, Feng Y, Lu X, Yang B, Zhang H, Ma Y. Microvascular anastomosis in a challenging setting using a 4 K three-dimensional exoscope compared with a conventional microscope: An in vivo animal study. Front Surg 2022; 9:1021098. [PMID: 36338649 PMCID: PMC9630566 DOI: 10.3389/fsurg.2022.1021098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 09/30/2022] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Three-dimensional (3D) exoscope systems have been developed and are reported to be adequate alternatives to the conventional microscope. This study aimed to evaluate the feasibility and effectivity of microvascular anastomosis using a 4 K 3D exoscope in an in vivo animal study. METHODS The abdominal aortas of mice were selected as the target vessels for comparing the outcomes of microvascular anastomosis for both the conventional microscope and 3D exoscope. We recorded the vessel separation, temporary occlusion, and total procedure durations. Local conditions at the sutures were also recorded. Typical histopathological images were presented, and the patency of anastomotic vessels within 5 and 30 min were evaluated. All procedures included both superficial and deep anastomosis. RESULTS Sixty mice were included in the analysis; the weight and vascular diameter were 38.5 ± 5.8 g and 0.77 ± 0.06 mm, respectively, and around 8 stiches were required. Regarding feasibility, vessel separation duration, temporary occlusion duration, total procedure duration, blood leak, and number of vascular folds between stiches, the results were comparable between the two types of microscopes. The feasibility of anastomosis was also confirmed by pathology. Regarding effectiveness, anastomotic vascular patency at 5 and 30 min were similar for both microscopes. Even in the more difficult scenario of deep anastomosis, the results were comparable. CONCLUSIONS In a challenging experimental setting, comparable outcomes of microvascular anastomosis were observed for the conventional microscope and 3D exoscope in these animal experiments. Therefore, in vivo microvascular anastomosis is feasible and effective using a 3D exoscope.
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Affiliation(s)
- Zhiping Zhang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China,Yasargil Microsurgical Training Center, Beijing, China,China International Neuroscience Institute, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Yao Feng
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China,China International Neuroscience Institute, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Xia Lu
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China,China International Neuroscience Institute, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Bin Yang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China,China International Neuroscience Institute, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Hongqi Zhang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China,China International Neuroscience Institute, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Yan Ma
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China,Yasargil Microsurgical Training Center, Beijing, China,China International Neuroscience Institute, Xuanwu Hospital, Capital Medical University, Beijing, China,Correspondence: Yan Ma
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17
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Boaro A, Moscolo F, Feletti A, Polizzi G, Nunes S, Siddi F, Broekman M, Sala F. Visualization, navigation, augmentation. The ever-changing perspective of the neurosurgeon. BRAIN & SPINE 2022; 2:100926. [PMID: 36248169 PMCID: PMC9560703 DOI: 10.1016/j.bas.2022.100926] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/23/2022] [Accepted: 08/10/2022] [Indexed: 11/22/2022]
Abstract
Introduction The evolution of neurosurgery coincides with the evolution of visualization and navigation. Augmented reality technologies, with their ability to bring digital information into the real environment, have the potential to provide a new, revolutionary perspective to the neurosurgeon. Research question To provide an overview on the historical and technical aspects of visualization and navigation in neurosurgery, and to provide a systematic review on augmented reality (AR) applications in neurosurgery. Material and methods We provided an overview on the main historical milestones and technical features of visualization and navigation tools in neurosurgery. We systematically searched PubMed and Scopus databases for AR applications in neurosurgery and specifically discussed their relationship with current visualization and navigation systems, as well as main limitations. Results The evolution of visualization in neurosurgery is embodied by four magnification systems: surgical loupes, endoscope, surgical microscope and more recently the exoscope, each presenting independent features in terms of magnification capabilities, eye-hand coordination and the possibility to implement additional functions. In regard to navigation, two independent systems have been developed: the frame-based and the frame-less systems. The most frequent application setting for AR is brain surgery (71.6%), specifically neuro-oncology (36.2%) and microscope-based (29.2%), even though in the majority of cases AR applications presented their own visualization supports (66%). Discussion and conclusions The evolution of visualization and navigation in neurosurgery allowed for the development of more precise instruments; the development and clinical validation of AR applications, have the potential to be the next breakthrough, making surgeries safer, as well as improving surgical experience and reducing costs.
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Affiliation(s)
- A. Boaro
- Section of Neurosurgery, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Italy
| | - F. Moscolo
- Section of Neurosurgery, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Italy
| | - A. Feletti
- Section of Neurosurgery, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Italy
| | - G.M.V. Polizzi
- Section of Neurosurgery, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Italy
| | - S. Nunes
- Section of Neurosurgery, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Italy
| | - F. Siddi
- Department of Neurosurgery, Haaglanden Medical Center, The Hague, Zuid-Holland, the Netherlands
| | - M.L.D. Broekman
- Department of Neurosurgery, Haaglanden Medical Center, The Hague, Zuid-Holland, the Netherlands
- Department of Neurosurgery, Leiden University Medical Center, Leiden, Zuid-Holland, the Netherlands
| | - F. Sala
- Section of Neurosurgery, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Italy
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Miura I, Kohara K, Kawamata T. An Experience With an Exoscope System (ORBEYE) for Surgery for Tarsal Tunnel Syndrome: A Case Report. Cureus 2022; 14:e28045. [PMID: 36120253 PMCID: PMC9474269 DOI: 10.7759/cureus.28045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/15/2022] [Indexed: 11/05/2022] Open
Abstract
Surgery for peripheral entrapment neuropathy aims to decompress the affected nerve and optimize the visualization of anatomical details during surgery. This paper describes our experience using the ORBEYE exoscope (Olympus) during surgery for tarsal tunnel syndrome (TTS). The patient was a 70-year-old male with complaints of bilateral pain and numbness on the plantar surface of the bilateral soles and medial halves of both lower limbs. He was diagnosed with idiopathic TTS with the American Orthopedic Foot and Ankle Score (AOFAS) of 20/100. Surgery for the right foot was performed under local anesthesia with the patient’s body in the lateral position. All procedures were performed using the ORBEYE exoscope view. The posterior tibial artery (PTA) was transposed, and the flexor retinaculum was reconstructed between the PTA and posterior tibial nerve. Indocyanine green (ICG) video angiography confirmed the absence of PTA flow disturbance. One month after the first operation, left foot surgery was performed. Three months later, the AOFAS had improved from 20/100 to 50/100. The ORBEYE exoscope is useful in TTS treatment and represents a feasible and comfortable technique for entrapment neuropathy surgery. In addition, ICG capability is an effective tool for confirming blood flow in PTA after transposition.
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Layard Horsfall H, Mao Z, Koh CH, Khan DZ, Muirhead W, Stoyanov D, Marcus HJ. Comparative Learning Curves of Microscope Versus Exoscope: A Preclinical Randomized Crossover Noninferiority Study. Front Surg 2022; 9:920252. [PMID: 35903256 PMCID: PMC9316615 DOI: 10.3389/fsurg.2022.920252] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 05/12/2022] [Indexed: 11/28/2022] Open
Abstract
Background An exoscope heralds a new era of optics in surgery. However, there is limited quantitative evidence describing and comparing the learning curve. Objectives This study aimed to investigate the learning curve, plateau, and rate of novice surgeons using an Olympus ORBEYE exoscope compared to an operating microscope (Carl Zeiss OPMI PENTERO or KINEVO 900). Methods A preclinical, randomized, crossover, noninferiority trial assessed the performance of seventeen novice and seven expert surgeons completing the microsurgical grape dissection task “Star’s the limit.” A standardized star was drawn on a grape using a stencil with a 5 mm edge length. Participants cut the star and peeled the star-shaped skin off the grape with microscissors and forceps while minimizing damage to the grape flesh. Participants repeated the task 20 times consecutively for each optical device. Learning was assessed using model functions such as the Weibull function, and the cognitive workload was assessed with the NASA Task Load Index (NASA-TLX). Results Seventeen novice (male:female 12:5; median years of training 0.4 [0–2.8 years]) and six expert (male:female 4:2; median years of training 10 [8.9–24 years]) surgeons were recruited. “Star’s the limit” was validated using a performance score that gave a threshold of expert performance of 70 (0–100). The learning rate (ORBEYE −0.94 ± 0.37; microscope −1.30 ± 0.46) and learning plateau (ORBEYE 64.89 ± 8.81; microscope 65.93 ± 9.44) of the ORBEYE were significantly noninferior compared to those of the microscope group (p = 0.009; p = 0.027, respectively). The cognitive workload on NASA-TLX was higher for the ORBEYE. Novices preferred the freedom of movement and ergonomics of the ORBEYE but preferred the visualization of the microscope. Conclusions This is the first study to quantify the ORBEYE learning curve and the first randomized controlled trial to compare the ORBEYE learning curve to that of the microscope. The plateau performance and learning rate of the ORBEYE are significantly noninferior to those of the microscope in a preclinical grape dissection task. This study also supports the ergonomics of the ORBEYE as reported in preliminary observational studies and highlights visualization as a focus for further development.
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Affiliation(s)
- Hugo Layard Horsfall
- Victor Horsley Department of Neurosurgery, National Hospital for Neurology and Neurosurgery, London, United Kingdom
- Wellcome/EPSRC Centre for Interventional and Surgical Sciences, University College London, London, United Kingdom
- Correspondence: Hugo Layard Horsfall
| | - Zeqian Mao
- Victor Horsley Department of Neurosurgery, National Hospital for Neurology and Neurosurgery, London, United Kingdom
| | - Chan Hee Koh
- Victor Horsley Department of Neurosurgery, National Hospital for Neurology and Neurosurgery, London, United Kingdom
- Wellcome/EPSRC Centre for Interventional and Surgical Sciences, University College London, London, United Kingdom
| | - Danyal Z. Khan
- Victor Horsley Department of Neurosurgery, National Hospital for Neurology and Neurosurgery, London, United Kingdom
- Wellcome/EPSRC Centre for Interventional and Surgical Sciences, University College London, London, United Kingdom
| | - William Muirhead
- Victor Horsley Department of Neurosurgery, National Hospital for Neurology and Neurosurgery, London, United Kingdom
- Wellcome/EPSRC Centre for Interventional and Surgical Sciences, University College London, London, United Kingdom
| | - Danail Stoyanov
- Wellcome/EPSRC Centre for Interventional and Surgical Sciences, University College London, London, United Kingdom
| | - Hani J. Marcus
- Victor Horsley Department of Neurosurgery, National Hospital for Neurology and Neurosurgery, London, United Kingdom
- Wellcome/EPSRC Centre for Interventional and Surgical Sciences, University College London, London, United Kingdom
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Pantel T, Drexler R, Göttsche J, Piffko A, Westphal M, Regelsberger J, Dührsen L. Single-Center Experience Using a 3D4K Digital Operating Scope System for Aneurysm Surgery. Oper Neurosurg (Hagerstown) 2022; 22:433-439. [PMID: 35383707 DOI: 10.1227/ons.0000000000000150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 12/15/2021] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND In recent years, 3D4K exoscope systems (EXs) have been introduced to microneurosurgery and reported to be an alternative to conventional operating microscopes (OMs). This study reviews our single-center experience using an 3D4K EX in intracranial aneurysm surgery. OBJECTIVE To investigate the applicability of a novel 3D4K EX for intracranial aneurysm surgery. METHODS A retrospective analysis of patients who underwent microsurgical repair of incidentally or ruptured cerebral aneurysms between August 2018 and August 2020 was performed. Patient and aneurysm characteristics and technical features, including 3-dimensional indocyanine green fluorescence, were evaluated. Data on surgery duration were statically assessed for a time trend and comparability with the OM cohort. RESULTS Overall, we collected 185 aneurysm cases in which the exoscope was used in 44 cases. The mean duration of surgery using the EX was in similar range to those using the OM (165.5 ± 45.8 minutes vs 160.5 ± 39.2 minutes, P > .05). Routine postoperative computed tomography angiography showed comparable rates of complete aneurysm occlusion (95.5% vs 92.2%, P > .05) and postoperative complications (9.1% vs 9.7%, P > .05). There was no necessity to revert to the OM from the EX. Three-dimensional indocyanine green fluorescence was used in all procedures without any malfunction. CONCLUSION The 3D4K EX for vascular microsurgical cases proved to be as useful as the OM. Because of the ease of use and comparable surgical results, the EX has the potential to become an accepted and additional visualization tool in vascular microsurgery next to the OM.
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Affiliation(s)
- Tobias Pantel
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Richard Drexler
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jennifer Göttsche
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Andras Piffko
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Manfred Westphal
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jan Regelsberger
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Department of Neurosurgery, DIAKO Clinic Flensburg, Flensburg, Germany
| | - Lasse Dührsen
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Murakami T, Toyota S, Nakagawa K, Hagioka T, Hoshikuma Y, Suematsu T, Shimizu T, Kobayashi M, Taki T. Midline suboccipital approach to a vertebral artery–posterior inferior cerebellar artery aneurysm from the rostral end of the patient using ORBEYE. Surg Neurol Int 2022; 13:87. [PMID: 35399900 PMCID: PMC8986755 DOI: 10.25259/sni_1272_2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 02/11/2022] [Indexed: 02/02/2023] Open
Abstract
Background:
The midline suboccipital approach with the patient in the prone position is safe and effective for clipping vertebral artery–posterior inferior cerebellar artery (VA–PICA) aneurysms. Using a conventional surgical microscope from the rostral end of the patient for this approach without an extreme head-down position requires the surgeon to overhang the visual axis of the microscope and perform surgical manipulations in an uncomfortable posture. We report performing the midline suboccipital approach from the rostral end with slight head-down position using ORBEYE, a new high-definition (4K) three-dimensional exoscope.
Case Description:
A 65-year-old woman was admitted for clipping of a right unruptured VA–PICA aneurysm (maximum diameter, 5mm) located medially and ventral to the hypoglossal canal. After induction of general anesthesia, the patient was placed in the prone position with the head titled slightly downward. A midline suboccipital approach was performed from the rostral end of the patient using ORBEYE. Clipping was safely accomplished in a comfortable posture. No operative complications occurred. Postoperative computed tomography angiography showed complete aneurysmal obstruction.
Conclusion:
Exoscopic surgery using ORBEYE is feasible for a midline suboccipital approach to VA–PICA aneurysms from the rostral end of the patient with the patient in the prone with slight head-down position.
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22
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Göttsche J, Piffko A, Pantel TF, Westphal M, Flitsch J, Ricklefs FL, Regelsberger J, Dührsen L. Experiences with a 3D4K digital exoscope system (ORBEYE) in a wide range of neurosurgical procedures. J Neurol Surg A Cent Eur Neurosurg 2022; 83:596-601. [PMID: 35144300 DOI: 10.1055/a-1768-4060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND AND STUDY AIMS Exoscopic 3D4K video systems (EX) have recently been introduced as an alternative to conventional operating microscopes (OM). However, experience in handling and setup remains scarce. This study evaluated the practicability of exoscopic surgery in a wide range of procedures. MATERIAL AND METHODS All EX operations performed between 08/2018 and 05/2020 were evaluated and compared to procedures using OM. A standardized questionnaire was used to evaluate surgeons' comfort, image quality (including fluorescence modes) and handling. RESULTS 513 EX operations were during the investigated period. EX was generally rated as a valuable surgical tool. In particular, the digital 5-aminolevulinic acid (5-ALA) fluorescence and the comfort level of posture during surgery were stated to be superior to OM (100 and 83%, respectively). CONCLUSION EX has been used for a significant number of neurosurgical procedures. While presuming that the technical methodology as such will not influence outcome of glioma surgery, proof of equipoise between different techniques expands the spectrum of surgical environments giving neurosurgeons a choice to work according to their preferred ergonomics.
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Affiliation(s)
- Jennifer Göttsche
- Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Andras Piffko
- Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Tobias Fabian Pantel
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Manfred Westphal
- Neurosurgery, Medical Center Hamburg-Eppendorf, hamburg, Germany
| | - Joerg Flitsch
- Pituitary Unit, Clinic of Neurosurgery, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Hamburg, Germany
| | - Franz Lennard Ricklefs
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jan Regelsberger
- Neurosurgical Dept., Diako Klinikum Flensburg, Flensburg, Germany
| | - L Dührsen
- Neurosurgery, UKE Hamburg Eppendorf, Hamburg, Germany
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The Exoscope in Neurosurgery: An Overview of the Current Literature of Intraoperative Use in Brain and Spine Surgery. J Clin Med 2021; 11:jcm11010223. [PMID: 35011964 PMCID: PMC8745525 DOI: 10.3390/jcm11010223] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 12/18/2021] [Accepted: 12/30/2021] [Indexed: 12/12/2022] Open
Abstract
Background: Exoscopes are a safe and effective alternative or adjunct to the existing binocular surgical microscope for brain tumor, skull base surgery, aneurysm clipping and both cervical and lumbar complex spine surgery that probably will open a new era in the field of new tools and techniques in neurosurgery. Methods: A Pubmed and Ovid EMBASE search was performed to identify papers that include surgical experiences with the exoscope in neurosurgery. PRISMA guidelines (Preferred Reporting Items for Systematic Reviews and Meta-analyses) were followed. Results: A total of 86 articles and 1711 cases were included and analyzed in this review. Among 86 papers included in this review 74 (86%) were published in the last 5 years. Out of 1711 surgical procedures, 1534 (89.6%) were performed in the operative room, whereas 177 (10.9%) were performed in the laboratory on cadavers. In more detail, 1251 (72.7%) were reported as brain surgeries, whereas 274 (16%) and 9 (0.5%) were reported as spine and peripheral nerve surgeries, respectively. Considering only the clinical series (40 studies and 1328 patients), the overall surgical complication rate was 2.6% during the use of the exoscope. These patients experienced complication profiles similar to those that underwent the same treatments with the OM. The overall switch incidence rate from exoscope to OM during surgery was 5.8%. Conclusions: The exoscope seems to be a safe alternative compared to an operative microscope for the most common brain and spinal procedures, with several advantages that have been reached, such as an easier simplicity of use and a better 3D vision and magnification of the surgical field. Moreover, it offers the opportunity of better interaction with other members of the surgical staff. All these points set the first step for subsequent and short-term changes in the field of neurosurgery and offer new educational possibilities for young neurosurgery and medical students.
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Evaluation of a Novel Three-Dimensional Robotic Digital Microscope (Aeos) in Neurosurgery. Cancers (Basel) 2021; 13:cancers13174273. [PMID: 34503083 PMCID: PMC8428371 DOI: 10.3390/cancers13174273] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/01/2021] [Accepted: 08/19/2021] [Indexed: 01/13/2023] Open
Abstract
OBJECTIVE Current literature debates the role of newly developed three-dimensional (3D) Exoscopes in the daily routine of neurosurgical practice. So far, only a small number of cadaver lab studies or case reports have examined the novel Aesculap Aeos Three-Dimensional Robotic Digital Microscope. This study aims to evaluate the grade of satisfaction and intraoperative handling of this novel system in neurosurgery. METHODS Nineteen neurosurgical procedures (12 cranial, 6 spinal and 1 peripheral nerve) performed over 9 weeks using the Aeos were analyzed. Ten neurosurgeons of varying levels of training were included after undergoing device instruction and training. Following every surgery, a questionnaire consisting of 43 items concerning intraoperative handling was completed. The questionnaires were analyzed using descriptive statistics. RESULTS No intraoperative complications occurred. Surgical satisfaction was ranked high (78.95%). In total, 84.21% evaluated surgical ergonomics as satisfactory, while 78.95% of the surgeons would like to use this system frequently. Image quality, independent working zoom function and depth of field were perceived as suboptimal by several neurosurgeons. CONCLUSION The use of Aeos is feasible and safe in microsurgical procedures, and surgical satisfaction was ranked high among most neurosurgeons in our study. The system might offer advanced ergonomic conditions in comparison to conventional ocular-based microscopes.
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