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Xue H, Liu W, Li R, Xiao F, Zhu Z, Wu G, Zhang C. Advantages of robot-assisted PKP under local anesthesia in the treatment of OVCF: a retrospective, non-randomized, controlled, clinical study. Front Surg 2024; 11:1445461. [PMID: 39175637 PMCID: PMC11338769 DOI: 10.3389/fsurg.2024.1445461] [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: 06/07/2024] [Accepted: 07/30/2024] [Indexed: 08/24/2024] Open
Abstract
Background Robot-assisted technology has been widely used in orthopedic surgery, which can provide surgeons with higher accuracy and reduce radiation exposure. In spinal surgery, robots are often used to assist pedicle screw implantation, while there are relatively few studies on robot-assisted percutaneous kyphoplasty (PKP) under local anesthesia. Methods A total of 96 patients with single-segment OVCF who met the inclusion criteria were included in this study. Fifty-six patients underwent robot-assisted PKP and forty patients underwent conventional PKP by the same group of surgeons. Collect the relevant parameters. Results The puncture time and fluoroscopy times during puncture in the robot group were significantly less than those in the manual group (P < 0.001). The success rate of first puncture in the robot group was 92.5%. Conclusions PKP under local anesthesia assisted by the new spinal surgical robot effectively reduces the patient's intraoperative discomfort and has a low learning curve.
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Affiliation(s)
- Han Xue
- Department of Orthopaedic Center, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Wei Liu
- Department of Sports and Joint Surgery, Xian Yang Central Hospital, Xian Yang, China
| | - Ruochen Li
- Department of Orthopaedic Center, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Fengxu Xiao
- Department of Ultrasound, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Zheyue Zhu
- Department of Orthopaedic Center, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Guangwei Wu
- Department of Orthopaedic Center, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Chen Zhang
- Department of Orthopaedic Center, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
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2
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Komolafe TE, Zhou L, Zhao W, Guo J, Li Z, Fan Z, Komolafe BF, Wei W, Samuel OW. Advancing robot-guided techniques in lumbar spine surgery: a systematic review and meta-analysis. Expert Rev Med Devices 2024; 21:765-779. [PMID: 39007890 DOI: 10.1080/17434440.2024.2378080] [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: 02/06/2024] [Accepted: 06/04/2024] [Indexed: 07/16/2024]
Abstract
BACKGROUND Lumbar spine surgery is a crucial intervention for addressing spinal injuries or conditions affecting the spine, often involving lumbar fusion through pedicle screw (PS) insertion. The precision of PS placement is pivotal in orthopedic surgery. This systematic review compares the accuracy of robot-guided (RG) surgery with free-hand fluoroscopy-guided (FFG), free-hand without fluoroscopy-guided (FHG), and computed tomography image-guided (CTG) techniques for PS insertion. METHODS A systematic search of various databases from 1 January 2013 to 30 December 2023 was conducted following PRISMA guidelines. Primary outcomes, including PS insertion accuracy and breach rate, were analyzed using a random-effects model. Risk of bias was assessed using the Newcastle-Ottawa Scale. RESULTS The overall accuracy of PS insertion using RG, based on 37 studies involving 3,837 patients and 22,117 PS, is 97.9%, with a breach rate of 0.021. RG demonstrated superior accuracy compared to FHG and CTG, with breach rates of 3.4 and 0.015 respectively for RG versus FHG, and 3.8 and 0.026 for RG versus CTG. Additionally, RG was associated with reduced mean estimated blood loss compared to CTG, indicating improved safety. CONCLUSIONS The RG is associated with enhanced accuracy of PS insertion and reduced breach rates over other methods. However, additional randomized controlled trials comparing these modalities are needed for further validation. PROSPERO REGISTRATION CRD42023483997.
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Affiliation(s)
| | - Liang Zhou
- Department of Radiology, Jiading District Central Hospital Affiliated to Shanghai University of Medicine & Health Sciences, Shanghai, China
- Biomedical Engineering Fusion Laboratory, Jiangning Hospital Affiliated with Nanjing Medical University, Nanjing, China
| | - Wenlong Zhao
- Collaborative Research Center, Shanghai University of Medicine & Health Sciences, Shanghai, China
| | - Jiachen Guo
- Collaborative Research Center, Shanghai University of Medicine & Health Sciences, Shanghai, China
| | - Zongdao Li
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Zhiping Fan
- Collaborative Research Center, Shanghai University of Medicine & Health Sciences, Shanghai, China
| | - Blessing Funmi Komolafe
- School of International Education, Shanghai University of Medicine & Health Sciences, Shanghai, China
| | - Wang Wei
- Department of Orthopaedic, School of Medicine, Renji Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
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Monek AC, Mitha R, Andrews E, Sarkaria IS, Agarwal N, Hamilton DK. Multidisciplinary Surgical Approach Using Augmented Reality Preplanning for Resection of Giant Thoracic Schwannoma With Robotic-Assisted Thoracoscopic Mobilization. Oper Neurosurg (Hagerstown) 2024:01787389-990000000-01147. [PMID: 38687027 DOI: 10.1227/ons.0000000000001174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 02/24/2024] [Indexed: 05/02/2024] Open
Abstract
BACKGROUND AND IMPORTANCE In adults, primary spinal cord tumors account for 5% of all primary tumors of the central nervous system, with schwannomas making up about 74% of all nerve sheath tumors. Thoracic schwannomas can pose a threat to neurovasculature, presenting a significant challenge to safe and complete surgical resection. For patients presenting with complex pathologies including tumors, a dual surgeon approach may be used to optimize patient care and improve outcomes. CLINICAL PRESENTATION A 73-year-old female previously diagnosed with a nerve sheath tumor of the fourth thoracic vertebra presented with significant thoracic pain and a history of falls. Imaging showed that the tumor had doubled in size ranging from T3 to T5. Augmented reality volumetric rendering was used to clarify anatomic relationships of the mass for perioperative evaluation and decision-making. A dual surgeon approach was used for complete resection. First, a ventrolateral left video-assisted thoracoscopic surgery was performed with robotic assistance followed by a posterior tumor resection and thoracic restabilization. The patient did well postoperatively. CONCLUSION Although surgical treatment of large thoracic dumbbell tumors presents a myriad of risks, perioperative evaluation with augmented reality, new robotic surgical techniques, and a dual surgeon approach can be implemented to mitigate these risks.
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Affiliation(s)
- Adam C Monek
- Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Rida Mitha
- Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Edward Andrews
- Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Inderpal S Sarkaria
- Department of Cardiothoracic Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Nitin Agarwal
- Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - D Kojo Hamilton
- Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
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4
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Narendran N, Nilssen PK, Walker CT, Skaggs DL. New technique and case report: Robot-assisted intralaminar screw fixation of spondylolysis in an adolescent. NORTH AMERICAN SPINE SOCIETY JOURNAL 2023; 16:100284. [PMID: 38025938 PMCID: PMC10654584 DOI: 10.1016/j.xnsj.2023.100284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 09/26/2023] [Accepted: 09/27/2023] [Indexed: 12/01/2023]
Abstract
Introduction Management of spondylolysis in adolescents is generally successful with conservative management. Uncommonly, surgical fixation is necessary for refractory cases. Direct repair with intralaminar screws is one commonly utilized technique. Recently, less invasive spinal procedures are becoming viable with the enabling of technologies, including robotics. Case description A 14-year-old baseball player and surfer presented with low back pain, diagnosed by MRI as bony edema and stress fractures of the posterior spinal elements. After 18 months, the pain was unresponsive to rest, physical therapy, and bracing. There was no radicular pain or neurologic symptoms. Computed tomography (CT) revealed bilateral, chronic nonhealing pars defects at L5. He underwent outpatient, robot-assisted percutaneous intralaminar fixation with hydroxyapatite-coated screws through a 2 cm skin incision. Outcome On postoperative day 1, the patient reported relief of his preoperative pain and he was ambulating without difficulty. At 2 weeks follow-up, the patient was completely pain free and surfing. At 2 months follow-up, low-dose CT demonstrated partial incorporation of the hydroxyapatite-coated screws, and the patient returned to sports. At 6 months follow-up, the patient had no pain and was swinging his baseball bat with full force. Low-dose CT revealed complete healing of the defects with full incorporation of the hydroxyapatite-coated screws. Conclusions A novel minimally invasive robotic percutaneous approach for direct spondylolysis repair using hydroxyapatite-coated screws is a potential surgical treatment option for non-healing pars defects in adolescent patients.
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Affiliation(s)
- Nakul Narendran
- Department of Orthopaedic Surgery, Cedars-Sinai Medical Center, 444 South San Vicente Blvd, Los Angeles, CA, United States
| | - Paal K. Nilssen
- Department of Orthopaedic Surgery, Cedars-Sinai Medical Center, 444 South San Vicente Blvd, Los Angeles, CA, United States
| | - Corey T. Walker
- Department of Neurosurgery, Cedars-Sinai Medical Center, 444 South San Vicente Blvd, Los Angeles, CA, United States
| | - David L. Skaggs
- Department of Orthopaedic Surgery, Cedars-Sinai Medical Center, 444 South San Vicente Blvd, Los Angeles, CA, United States
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5
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Romagna A, Sperker S, Lumenta C, Tomasino A, Schwartz C, Lehmberg J, Zausinger S, Schul D. Robot-assisted versus navigated transpedicular spine fusion: A comparative study. Int J Med Robot 2023; 19:e2500. [PMID: 36649651 DOI: 10.1002/rcs.2500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/29/2022] [Accepted: 01/12/2023] [Indexed: 01/19/2023]
Abstract
BACKGROUND The aim of this study was to compare the intraoperative and postoperative outcomes between a robot-assisted versus a navigated transpedicular fusion technique. METHODS This retrospective analysis included patients who underwent transpedicular posterior fusion of the spine due to trauma, pyogenic spondylodiscitis and osteoporosis. Surgery was done either with a robot-assisted or a percutaneous navigated transpedicular fusion technique. The outcome analysis included the duration of surgery, the radiation exposure, the postoperative screw position and complications. RESULTS A total of 60 patients were operated and 491 screws were analysed. No statistical difference was seen in the applied cumulative effective radiation dose per patient. The radiological assessment revealed a more accurate screw placement with robot assistance. A learning curve could be observed in robot-assisted fusion. CONCLUSION Robot-assisted and navigated transpedicular fusion techniques are both effective and safe. Robot-assisted transpedicular spine fusion goes along with higher placement accuracy but its implementation needs an adequate learning curve.
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Affiliation(s)
- Alexander Romagna
- Department of Neurosurgery, München Klinik Bogenhausen, Munich, Germany.,Department of Neurosurgery, University Hospital Salzburg, Paracelsus Medical University Salzburg, Salzburg, Austria
| | - Sarah Sperker
- Department of Neurosurgery, München Klinik Bogenhausen, Munich, Germany
| | | | - Andre Tomasino
- Department of Neurosurgery, Inn Klinikum Altötting und Mühldorf, Mühldorf, Germany
| | - Christoph Schwartz
- Department of Neurosurgery, University Hospital Salzburg, Paracelsus Medical University Salzburg, Salzburg, Austria
| | - Jens Lehmberg
- Department of Neurosurgery, München Klinik Bogenhausen, Munich, Germany
| | | | - David Schul
- Department of Neurosurgery, München Klinik Bogenhausen, Munich, Germany
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6
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Lopez IB, Benzakour A, Mavrogenis A, Benzakour T, Ahmad A, Lemée JM. Robotics in spine surgery: systematic review of literature. INTERNATIONAL ORTHOPAEDICS 2023; 47:447-456. [PMID: 35849162 DOI: 10.1007/s00264-022-05508-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 07/05/2022] [Indexed: 01/31/2023]
Abstract
PURPOSE Over 4.83 million spine surgery procedures are performed annually around the world. With the considerable caseload and the precision needed to achieve optimal spinal instrumentation, technical progress has helped to improve the technique's safety and accuracy with the development of peri-operative assistance tools. Contrary to other surgical applications already part of the standard of care, the development of robotics in spine surgery is still a novelty and is not widely available nor used. Robotics, especially when coupled with other guidance modalities such as navigation, seems to be a promising tool in our quest for accuracy, improving patient outcomes and reducing surgical complications. Robotics in spine surgery may also be for the surgeon a way to progress in terms of ergonomics, but also to respond to a growing concern among surgical teams to reduce radiation exposure. METHOD We present in this recent systematic review of the literature realized according to the PRISMA guidelines the place of robotics in spine surgery, reviewing the comparison to standard techniques, the current and future indications, the learning curve, the impact on radiation exposure, and the cost-effectiveness. RESULTS Seventy-six relevant original studies were identified and analyzed for the review. CONCLUSION Robotics has proved to be a safe help for spine surgery, both for the patient with a decrease of operating time and increase in pedicular screw accuracy, and for the surgical team with a decrease of radiation exposure. Medico-economic studies demonstrated that despite a high buying cost, the purchase of a robot dedicated for spine surgery is cost-effective resulting in lesser revision, lower infection, reduced length of stay, and shorter surgical procedure.
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Affiliation(s)
- Ignacio Barrio Lopez
- Department of Neurosurgery, University Hospital of Angers, 4, rue Larrey, 49933, Angers Cedex 09, France
| | - Ahmed Benzakour
- Centre Orléanais du Dos, Pôle Santé Oréliance, Saran, France
| | - Andreas Mavrogenis
- First Department of Orthopaedics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | | | | | - Jean-Michel Lemée
- Department of Neurosurgery, University Hospital of Angers, 4, rue Larrey, 49933, Angers Cedex 09, France. .,INSERM CRCI2NA Team 5, GLIAD, Angers, France.
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Chang J, Yu L, Li Q, Wang B, Yang L, Cheng M, Wang F, Zhang L, Chen L, Li K, Liang L, Zhou W, Cai W, Ren Y, Hu Z, Huang Z, Sui T, Fan J, Wang J, Li B, Cao X, Yin G. Development and Clinical Trial of a New Orthopedic Surgical Robot for Positioning and Navigation. J Clin Med 2022; 11:jcm11237091. [PMID: 36498666 PMCID: PMC9738984 DOI: 10.3390/jcm11237091] [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: 10/23/2022] [Revised: 11/18/2022] [Accepted: 11/24/2022] [Indexed: 12/02/2022] Open
Abstract
Robot-assisted orthopedic surgery has great application prospects, and the accuracy of the robot is the key to its overall performance. The aim of this study was to develop a new orthopedic surgical robot to assist in spinal surgeries and to compare its feasibility and accuracy with the existing orthopedic robot. A new type of high-precision orthopedic surgical robot (Tuoshou) was developed. A multicenter, randomized controlled trial was carried out to compare the Tuoshou with the TiRobot (TINAVI Medical Technologies Co., Ltd., Beijing) to evaluate the accuracy and safety of their navigation and positioning. A total of 112 patients were randomized, and 108 patients completed the study. The position deviation of the Kirschner wire placement in the Tuoshou group was smaller than that in the TiRobot group (p = 0.014). The Tuoshou group was better than the TiRobot group in terms of the pedicle screw insertion accuracy (p = 0.016) and entry point deviation (p < 0.001). No differences were observed in endpoint deviation (p = 0.170), axial deviation (p = 0.170), sagittal deviation (p = 0.324), and spatial deviation (p = 0.299). There was no difference in security indicators. The new orthopedic surgical robot was highly accurate and optimized for clinical practice, making it suitable for clinical application.
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Affiliation(s)
- Jie Chang
- The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Lipeng Yu
- The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Qingqing Li
- The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Boyao Wang
- The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210003, China
| | - Lei Yang
- Department of Orthopedics, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou 225300, China
| | - Min Cheng
- Nanjing Tuodao Medical Technology Co., Ltd., Nanjing 210012, China
| | - Feng Wang
- Nanjing Tuodao Medical Technology Co., Ltd., Nanjing 210012, China
| | - Long Zhang
- Nanjing Tuodao Medical Technology Co., Ltd., Nanjing 210012, China
| | - Lei Chen
- Nanjing Tuodao Medical Technology Co., Ltd., Nanjing 210012, China
| | - Kun Li
- Wuhan Fourth Hospital, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Liang Liang
- Guizhou Provincial People’s Hospital, Guiyang 550002, China
| | - Wei Zhou
- The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Weihua Cai
- The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Yongxin Ren
- The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Zhiyi Hu
- The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Zhenfei Huang
- The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Tao Sui
- The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Jin Fan
- The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Junwen Wang
- Wuhan Fourth Hospital, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Correspondence: (J.W.); (B.L.); (X.C.); (G.Y.)
| | - Bo Li
- Guizhou Provincial People’s Hospital, Guiyang 550002, China
- Correspondence: (J.W.); (B.L.); (X.C.); (G.Y.)
| | - Xiaojian Cao
- The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
- Correspondence: (J.W.); (B.L.); (X.C.); (G.Y.)
| | - Guoyong Yin
- The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
- Correspondence: (J.W.); (B.L.); (X.C.); (G.Y.)
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8
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Tigchelaar SS, Medress ZA, Quon J, Dang P, Barbery D, Bobrow A, Kin C, Louis R, Desai A. Augmented Reality Neuronavigation for En Bloc Resection of Spinal Column Lesions. World Neurosurg 2022; 167:102-110. [PMID: 36096393 DOI: 10.1016/j.wneu.2022.08.143] [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: 07/11/2022] [Revised: 08/28/2022] [Accepted: 08/30/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Primary tumors involving the spine are relatively rare but represent surgically challenging procedures with high patient morbidity. En bloc resection of these tumors necessitates large exposures, wide tumor margins, and poses risks to functionally relevant anatomical structures. Augmented reality neuronavigation (ARNV) represents a paradigm shift in neuronavigation, allowing on-demand visualization of 3D navigation data in real-time directly in line with the operative field. METHODS Here, we describe the first application of ARNV to perform distal sacrococcygectomies for the en bloc removal of sacral and retrorectal lesions involving the coccyx in 2 patients, as well as a thoracic 9-11 laminectomy with costotransversectomy for en bloc removal of a schwannoma in a third patient. RESULTS In our experience, ARNV allowed our teams to minimize the length of the incision, reduce the extent of bony resection, and enhanced visualization of critical adjacent anatomy. All tumors were resected en bloc, and the patients recovered well postoperatively, with no known complications. Pathologic analysis confirmed the en bloc removal of these lesions with negative margins. CONCLUSIONS We conclude that ARNV is an effective strategy for the precise, en bloc removal of spinal lesions including both sacrococcygeal tumors involving the retrorectal space and thoracic schwannomas.
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Affiliation(s)
- Seth S Tigchelaar
- Department of Neurosurgery, Stanford University Medical Center, Stanford, California, USA.
| | - Zachary A Medress
- Department of Neurosurgery, Stanford University Medical Center, Stanford, California, USA
| | - Jennifer Quon
- Department of Neurosurgery, Stanford University Medical Center, Stanford, California, USA
| | - Phuong Dang
- Surgical Theater, Inc., Cleveland, Ohio, USA
| | | | | | - Cindy Kin
- Department of Surgery, Stanford University Medical Center, Stanford, California, USA
| | - Robert Louis
- The Brain and Spine Center, Hoag Memorial Hospital Presbyterian Newport Beach, Newport Beach, California, USA; Pickup Family Neurosciences Institute, Hoag Memorial Hospital Presbyterian Newport Beach, Newport Beach, California, USA
| | - Atman Desai
- Department of Neurosurgery, Stanford University Medical Center, Stanford, California, USA
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9
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Virtual and Real Bidirectional Driving System for the Synchronization of Manipulations in Robotic Joint Surgeries. MACHINES 2022. [DOI: 10.3390/machines10070530] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Surgical robots are increasingly important in orthopedic surgeries to assist or replace surgeons in completing operations. During joint surgeries, the patient’s joint needs to be adjusted several times by the surgeon. Therefore, the virtual model, built on the preoperative medical images, cannot match the actual variation of the patient’s joint during the surgery. Conventional virtual reality techniques cannot fully satisfy the requirements of the joint surgeries. This paper proposes a real and virtual bidirectional driving method to synchronize the manipulations in both the real operation site and the virtual scene. The dynamic digital twin of the patient’s joint is obtained by decoupling the joint and dynamically updating its pose via the intraoperative measurements. During surgery, the surgeon can intuitively monitor the real-time position of the patient and the surgical tool through the system and can also manipulate the surgical robot in the virtual scene. In addition, the system can provide visual guidance to the surgeon when the patient’s joint is adjusted. A prototype system is developed for orthopedic surgeries. Proof-of-concept joint surgery demo is carried out to verify the effectiveness of the proposed method. Experimental results show that the proposed system can synchronize the manipulations in both the real operation site and the virtual scene, thus realizing the bidirectional driving.
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10
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Steiert C, Behringer SP, Kraus LM, Bissolo M, Demerath T, Beck J, Grauvogel J, Reinacher PC. Augmented reality-assisted craniofacial reconstruction in skull base lesions - an innovative technique for single-step resection and cranioplasty in neurosurgery. Neurosurg Rev 2022; 45:2745-2755. [PMID: 35441994 PMCID: PMC9349131 DOI: 10.1007/s10143-022-01784-6] [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: 01/08/2022] [Revised: 03/19/2022] [Accepted: 03/30/2022] [Indexed: 10/31/2022]
Abstract
Defects of the cranial vault often require cosmetic reconstruction with patient-specific implants, particularly in cases of craniofacial involvement. However, fabrication takes time and is expensive; therefore, efforts must be made to develop more rapidly available and more cost-effective alternatives. The current study investigated the feasibility of an augmented reality (AR)-assisted single-step procedure for repairing bony defects involving the facial skeleton and the skull base. In an experimental setting, nine neurosurgeons fabricated AR-assisted and conventionally shaped ("freehand") implants from polymethylmethacrylate (PMMA) on a skull model with a craniofacial bony defect. Deviations of the surface profile in comparison with the original model were quantified by means of volumetry, and the cosmetic results were evaluated using a multicomponent scoring system, each by two blinded neurosurgeons. Handling the AR equipment proved to be quite comfortable. The median volume deviating from the surface profile of the original model was low in the AR-assisted implants (6.40 cm3) and significantly reduced in comparison with the conventionally shaped implants (13.48 cm3). The cosmetic appearance of the AR-assisted implants was rated as very good (median 25.00 out of 30 points) and significantly improved in comparison with the conventionally shaped implants (median 14.75 out of 30 points). Our experiments showed outstanding results regarding the possibilities of AR-assisted procedures for single-step reconstruction of craniofacial defects. Although patient-specific implants still represent the gold standard in esthetic aspects, AR-assisted procedures hold high potential for an immediately and widely available, cost-effective alternative providing excellent cosmetic outcomes.
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Affiliation(s)
- Christine Steiert
- Department of Neurosurgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
| | - Simon Phillipp Behringer
- Department of Neurosurgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Luisa Mona Kraus
- Department of Neurosurgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Marco Bissolo
- Department of Neurosurgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Theo Demerath
- Department of Neuroradiology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Juergen Beck
- Department of Neurosurgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Juergen Grauvogel
- Department of Neurosurgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Peter Christoph Reinacher
- Department of Stereotactic and Functional Neurosurgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Fraunhofer Institute for Laser Technology, Aachen, Germany
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