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Kaye J, Na J, Stephan K, Bal E, Nebor I, Bucherl S, Nauman E, Nasser R, Virojanapa J, Andaluz N, Forbes JA. Endoscopic Endonasal Occipitocervical Fixation with a Customized Three-Dimensional Printed Titanium Plate-Screw Construct: A Cadaveric Feasibility Study. World Neurosurg 2024:S1878-8750(24)01195-1. [PMID: 38996963 DOI: 10.1016/j.wneu.2024.07.055] [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: 05/17/2024] [Revised: 07/04/2024] [Accepted: 07/05/2024] [Indexed: 07/14/2024]
Abstract
OBJECTIVE To evaluate the feasibility of a novel method for occipitocervical fixation (OCF) through the endonasal corridor. METHODS Thin-cut computed tomography scans were obtained for 5 cadaveric specimens. Image segmentation was used to reconstruct 3D models of each O-C1 joint complex. Using computer-aided design software, plates were custom-designed to span each O-C1 joint, sit flush onto the bony surface, and accommodate screws. The final models were 3D-printed in titanium. For implantation, specimens were held in pin-fixation and registered to neuronavigation. A rigid 0º endoscope was used for endonasal visualization. An inverted U-shaped nasopharyngeal flap was raised to expose the occipital condyles and C1. The plates were introduced and fixed with bone screws. Computed tomography scans were obtained to assess screw accuracy and proximity to critical neurovascular structures. Screw entry points and trajectories were recorded. RESULTS Endonasal OCF was performed on 5 cadaveric specimens. The mean starting point for occipital condyle screws was 6.17 mm lateral and 5.38 mm rostral to the medial O-C1 joint. Mean axial and sagittal trajectories were 7.98° and 6.71°, respectively. The mean starting point for C1 screws was 16.11 mm lateral to the C1 anterior tubercle and 6.39 mm caudal to the medial O-C1 joint. Mean axial and sagittal trajectories were 10.97° and -9.91°, respectively. CONCLUSIONS Endonasal OCF is technically and anatomically feasible. The application of this technique may allow for same-stage endonasal decompression and fixation, offering a minimally invasive alternative to current methods of fixation and advancing surgeons' ability to treat pathology of the craniovertebral junction. Next steps will focus on biomechanical testing.
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Affiliation(s)
- Joel Kaye
- Department of Neurological Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.
| | - John Na
- Department of Neurological Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Katarina Stephan
- Department of Neurological Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Ella Bal
- Department of Neurological Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Ivanna Nebor
- Department of Neurological Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Sean Bucherl
- Department of Biomedical Engineering, University of Cincinnati College of Engineering and Applied Sciences, Cincinnati, Ohio, USA
| | - Eric Nauman
- Department of Biomedical Engineering, University of Cincinnati College of Engineering and Applied Sciences, Cincinnati, Ohio, USA
| | - Rani Nasser
- Department of Neurological Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Justin Virojanapa
- Department of Neurological Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Norberto Andaluz
- Department of Neurological Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Jonathan A Forbes
- Department of Neurological Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
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Portonero I, Lo Bue E, Penner F, Di Perna G, Baldassarre BM, De Marco R, Pesaresi A, Garbossa D, Pecorari G, Zenga F. Lesson learned in endoscopic endonasal dens resection for C1-C2 spinal cord decompression. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2024; 33:438-443. [PMID: 37934268 DOI: 10.1007/s00586-023-08001-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 07/01/2023] [Accepted: 10/12/2023] [Indexed: 11/08/2023]
Abstract
PURPOSE Endoscopic endonasal approach (EEA) is the safest and most effective technique for odontoidectomy. Nevertheless, this kind of approach is yet not largely widespread. The aim of this study is to share with the scientific community some tips and tricks with our ten-year-old learned experience in endoscopic endonasal odontoidectomy (EEO), which remains a challenging surgical approach. MATERIAL AND METHODS Our case series consists of twenty-one (10 males, 11 females; age range of 34-84 years) retrospectively analyzed patients with ventral spinal cord compression for non-reducible CVJ malformation, treated with EEA from July 2011 to March 2019. RESULTS The results have recently been reported in a previous paper. The only intraoperative complication observed was intraoperative cerebrospinal fluid (CSF) leak (9.5%), without any sign of post-operative CSF leak. CONCLUSIONS Considering our experience, EEO represents a valid and safe technique to decompress neural cervical structures. Despite its technical complexity, mainly due to the use of endoscope and the challenging surgical area, with this study we encourage the use of EEO displaying our experience-based surgical tips and tricks.
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Affiliation(s)
- Irene Portonero
- Neurosurgery Unit, Department of Neuroscience "Rita Levi Montalcini", University of Turin, Via Cherasco 15, 10126, Turin, Italy.
- Skull Base Unit, Department of Neuroscience "Rita Levi Montalcini", "Città Della Salute E Della Scienza" University Hospital, University of Turin, Via Cherasco 15, Turin, Italy.
| | - Enrico Lo Bue
- Neurosurgery Unit, Department of Neuroscience "Rita Levi Montalcini", University of Turin, Via Cherasco 15, 10126, Turin, Italy
- Skull Base Unit, Department of Neuroscience "Rita Levi Montalcini", "Città Della Salute E Della Scienza" University Hospital, University of Turin, Via Cherasco 15, Turin, Italy
| | - Federica Penner
- Neurosurgery Unit, Department of Neuroscience "Rita Levi Montalcini", University of Turin, Via Cherasco 15, 10126, Turin, Italy
- Skull Base Unit, Department of Neuroscience "Rita Levi Montalcini", "Città Della Salute E Della Scienza" University Hospital, University of Turin, Via Cherasco 15, Turin, Italy
| | | | - Bianca Maria Baldassarre
- Neurosurgery Unit, Department of Neuroscience "Rita Levi Montalcini", University of Turin, Via Cherasco 15, 10126, Turin, Italy
- Skull Base Unit, Department of Neuroscience "Rita Levi Montalcini", "Città Della Salute E Della Scienza" University Hospital, University of Turin, Via Cherasco 15, Turin, Italy
- UOC Neurochirurgia, Ospedale SS Annunziata, Tartanto, Italy
| | - Raffaele De Marco
- Neurosurgery Unit, Department of Neuroscience "Rita Levi Montalcini", University of Turin, Via Cherasco 15, 10126, Turin, Italy
- Skull Base Unit, Department of Neuroscience "Rita Levi Montalcini", "Città Della Salute E Della Scienza" University Hospital, University of Turin, Via Cherasco 15, Turin, Italy
| | - Alessandro Pesaresi
- Neurosurgery Unit, Department of Neuroscience "Rita Levi Montalcini", University of Turin, Via Cherasco 15, 10126, Turin, Italy
- Skull Base Unit, Department of Neuroscience "Rita Levi Montalcini", "Città Della Salute E Della Scienza" University Hospital, University of Turin, Via Cherasco 15, Turin, Italy
| | - Diego Garbossa
- Neurosurgery Unit, Department of Neuroscience "Rita Levi Montalcini", University of Turin, Via Cherasco 15, 10126, Turin, Italy
- Skull Base Unit, Department of Neuroscience "Rita Levi Montalcini", "Città Della Salute E Della Scienza" University Hospital, University of Turin, Via Cherasco 15, Turin, Italy
| | - Giancarlo Pecorari
- ENT Surgery Unit, Department of Surgical Sciences, University of Turin, Turin, Italy
| | - Francesco Zenga
- Neurosurgery Unit, Department of Neuroscience "Rita Levi Montalcini", University of Turin, Via Cherasco 15, 10126, Turin, Italy
- Skull Base Unit, Department of Neuroscience "Rita Levi Montalcini", "Città Della Salute E Della Scienza" University Hospital, University of Turin, Via Cherasco 15, Turin, Italy
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Gao L, Ye L, Zhang Y, Zhang K, Wang X, Cheng BC, Cheng H. Factors Related to the Deterioration of Postoperative Lower Back Pain in Hemilaminectomy Approach for Lumbar Spinal Schwannoma Resection. J Pain Res 2023; 16:2861-2869. [PMID: 37609360 PMCID: PMC10441654 DOI: 10.2147/jpr.s409773] [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: 02/23/2023] [Accepted: 08/03/2023] [Indexed: 08/24/2023] Open
Abstract
Objective This study aimed to explore the related risk factors in patients who underwent hemilaminectomy for lumbar spinal schwannoma resection and who experienced deterioration of postoperative lower back pain in comparison to preoperative pain levels. Methods This retrospective study recruited 61 patients from the First Affiliated Hospital of An Hui Medical University between January 2018 and June 2019. All data were collected from clinical records and analyzed at 1-month and at 1-year follow-up. The visual analog scale (VAS) was used to evaluate pain, and neurologic function was assessed using the Modified McCormick Scale. Intraoperative neurophysiological monitoring was used to assess neuronal integrity and mitigate injury. Statistical analysis of the data was performed using the SPSS version 19 software. Results Preoperative pain improved dramatically in the 1-year follow-up (VAS: preoperative, 3.84±2.19; 1-year follow-up, 2.13±2.26; P<0.001). The pain-improved group and worsened group showed a significant difference at 1-month (VAS: 1.76±1.56; 5.54±1.26; P<0.05) and at 1-year (VAS: 0.83±1.09; 4.80±1.58; P<0.05) follow-up. The pain-improved and worsened groups had a significant difference in tumor size and hemilaminectomy removal segments at 1-month and 1-year follow-up, but A-train occurrence on electromyography could only be seen as a statistical difference in the 1-month follow-up. Logistic regression analysis revealed that tumor size was an independent risk factor for postoperative lower back pain deterioration. Conclusion The hemilaminectomy approach is a safe and effective method that can dramatically relieve pain in spinal lumbar schwannoma resection. Tumor size is an independent risk factor for postoperative lower back pain. A-train on spontaneous electromyography has been shown to be a reliable predictive factor for the evaluation of postoperative lower back pain. However, further detailed analysis of A-train characteristics can provide a more accurate warning during surgery.
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Affiliation(s)
- Lu Gao
- Department of Neurosurgery, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, People’s Republic of China
| | - Lei Ye
- Department of Neurosurgery, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, People’s Republic of China
| | - Yiquan Zhang
- Department of Neurosurgery, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, People’s Republic of China
| | - Ke Zhang
- Department of Neurosurgery, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, People’s Republic of China
| | - Xianxiang Wang
- Department of Neurosurgery, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, People’s Republic of China
| | - Bao Chun Cheng
- Department of Neurosurgery, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, People’s Republic of China
| | - Hongwei Cheng
- Department of Neurosurgery, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, People’s Republic of China
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Siempis T, Tsakiris C, Anastasia Z, Alexiou GA, Voulgaris S, Argyropoulou MI. Radiological assessment and surgical management of cervical spine involvement in patients with rheumatoid arthritis. Rheumatol Int 2023; 43:195-208. [PMID: 36378323 PMCID: PMC9898347 DOI: 10.1007/s00296-022-05239-5] [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: 09/22/2022] [Accepted: 10/21/2022] [Indexed: 11/16/2022]
Abstract
The purpose of the present systematic review was to describe the diagnostic evaluation of rheumatoid arthritis in the cervical spine to provide a better understanding of the indications and options of surgical intervention. We performed a literature review of Pub-med, Embase, and Scopus database. Upon implementing specific inclusion and exclusion criteria, all eligible articles were identified. A total of 1878 patients with Rheumatoid Arthritis (RA) were evaluated for cervical spine involvement with plain radiographs. Atlantoaxial subluxation (AAS) ranged from 16.4 to 95.7% in plain radiographs while sub-axial subluxation ranged from 10 to 43.6% of cases. Anterior atlantodental interval (AADI) was found to between 2.5 mm and 4.61 mm in neutral and flexion position respectively, while Posterior Atlantodental Interval (PADI) was between 20.4 and 24.92 mm. 660 patients with RA had undergone an MRI. A pannus diagnosis ranged from 13.33 to 85.36% while spinal cord compression was reported in 0-13% of cases. When it comes to surgical outcomes, Atlanto-axial joint (AAJ) fusion success rates ranged from 45.16 to 100% of cases. Furthermore, the incidence of postoperative subluxation ranged from 0 to 77.7%. With regards to AADI it is evident that its value decreased in all studies. Furthermore, an improvement in Ranawat classification was variable between studies with a report improvement frequency by at least one class ranging from 0 to 54.5%. In conclusion, through careful radiographic and clinical evaluation, cervical spine involvement in patients with RA can be detected. Surgery is a valuable option for these patients and can lead to improvement in their symptoms.
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Affiliation(s)
- Timoleon Siempis
- Department of Neurosurgery, Medical School, University of Ioannina, School of Medicine, Ioannina, Greece
| | - Charalampos Tsakiris
- Department of Neurosurgery, Medical School, University of Ioannina, School of Medicine, Ioannina, Greece
| | - Zikou Anastasia
- Department of Radiology, Medical School, University of Ioannina, Ioannina, Greece
| | - George A Alexiou
- Department of Neurosurgery, Medical School, University of Ioannina, School of Medicine, Ioannina, Greece.
| | - Spyridon Voulgaris
- Department of Neurosurgery, Medical School, University of Ioannina, School of Medicine, Ioannina, Greece
| | - Maria I Argyropoulou
- Department of Radiology, Medical School, University of Ioannina, Ioannina, Greece
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Forbes JA, Kumar C, McGough D, Palmisciano P, Hussein AE, Zhebrykov D, Gibson J, Andaluz N, Sedaghat AR, Prestigiacomo CJ, Mendez-Rosito D, Virojanapa J, Phillips KM, Schwartz TH, Cheng JS. Anterior occipital condyle screw placement through the endonasal corridor: proof of concept study with cadaveric analysis. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2023; 32:682-688. [PMID: 36593378 DOI: 10.1007/s00586-022-07520-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 12/06/2022] [Accepted: 12/27/2022] [Indexed: 01/04/2023]
Abstract
PURPOSE Odontoidectomy for ventral compressive pathology may result in O-C1 and/or C1-2 instability. Same-stage endonasal C1-2 spinal fusion has been advocated to eliminate risks associated with separate-stage posterior approaches. While endonasal methods for C1 instrumentation and C1-2 trans-articular stabilization exist, no hypothetical construct for endonasal occipital instrumentation has been validated. We provide an anatomic description of anterior occipital condyle (AOC) screw endonasal placement as proof-of-concept for endonasal craniocervical stabilization. METHODS Eight adult, injected cadaveric heads were studied for placing 16 AOC screws endonasally. Thin-cut CT was used for registration. After turning a standard inferior U-shaped nasopharyngeal flap endonasally, 4 mm × 22 mm AOC screws were placed with a 0° driver using neuronavigation. Post-placement CT scans were obtained to determine: site-of-entry, measured from the endonasal projection of the medial O-C1 joint; screw angulation in sagittal and axial planes, proximity to critical structures. RESULTS Average site-of-entry was 6.88 mm lateral and 9.74 mm rostral to the medial O-C1 joint. Average angulation in the sagittal plane was 0.16° inferior to the palatal line. Average angulation in the axial plane was 23.97° lateral to midline. Average minimum screw distances from the jugular bulb and hypoglossal canal were 4.80 mm and 1.55 mm. CONCLUSION Endonasal placement of AOC screws is feasible using a 0° driver. Our measurements provide useful parameters to guide optimal placement. Given proximity of hypoglossal canal and jugular bulb, neuronavigation is recommended. Biomechanical studies will ultimately be necessary to evaluate the strength of AOC screws with plate-screw constructs utilizing endonasal C1 lateral mass or C1-2 trans-articular screws as inferior fixation points.
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Affiliation(s)
- Jonathan A Forbes
- Department of Neurosurgery, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH, 45229, USA.
| | - Chitra Kumar
- University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Dan McGough
- University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Paolo Palmisciano
- Department of Neurosurgery, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH, 45229, USA
| | - Ahmed E Hussein
- Department of Neurosurgery, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH, 45229, USA
| | - Dmytro Zhebrykov
- Department of Neurosurgery, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH, 45229, USA
| | - Justin Gibson
- Department of Neurosurgery, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH, 45229, USA
| | - Norberto Andaluz
- Department of Neurosurgery, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH, 45229, USA
| | - Ahmad R Sedaghat
- Department of Otolaryngology and Head and Neck, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Charles J Prestigiacomo
- Department of Neurosurgery, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH, 45229, USA
| | - Diego Mendez-Rosito
- Department of Neurological Surgery, Centro Médico Nacional 20 de Noviembre, ISSSTE, Mexico City, Mexico
| | - Justin Virojanapa
- Department of Neurosurgery, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH, 45229, USA
| | - Katie M Phillips
- Department of Otolaryngology and Head and Neck, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Theodore H Schwartz
- Department of Neurosurgery, Weill Cornell Medical College, New York Presbyterian Hospital, New York, NY, USA
| | - Joseph S Cheng
- Department of Neurosurgery, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH, 45229, USA
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Wu P, Guan Y, Wang M, Zhang L, Zhao D, Cui X, Liu J, Qiu B, Tao J, Wang Y, Ou S. Classification and microsurgical treatment of foramen magnum meningioma. Chin Neurosurg J 2023; 9:3. [PMID: 36691052 PMCID: PMC9872311 DOI: 10.1186/s41016-022-00315-y] [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: 03/04/2022] [Accepted: 12/29/2022] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND To investigate the classification and microsurgical treatment of foramen magnum meningioma (FMM). METHODS We retrospectively analyzed 76 patients with FMM and classified them into two classifications, classification ABS according to the relationship between the FMM and the brainstem and classification SIM according to the relationship between the FMM and the vertebral artery (VA). All patients underwent either the far lateral approach (54 cases) or the suboccipital midline approach (22 cases). RESULTS Of the 76 cases, 47 cases were located ahead of the brainstem (A), 16 cases at the back of the brainstem (B), and 13 cases were located laterally to the brainstem (S). There were 15 cases located superior to the VA (S), 49 cases were inferior (I), and 12 cases were mixed type (M). Among 76 cases, 71 cases were resected with Simpson grade 2 (93.42%), 3 with Simpson grade 3 (3.95%), and 2 with Simpson grade 4 (2.63%). We summarized four anatomical triangles: triangles SOT, VOT, JVV, and TVV. The mean postoperative Karnofsky performance score was improved in all patients (p < 0.05). However, several complications occurred, including hoarseness and CSF leak. CONCLUSION ABS and SIM classifications are objective indices for choosing the surgical approach and predicting the difficulty of FMMs, and it is of great importance to master the content, position relationship with the tumor, and variable anatomical structures in the four "triangles" for the success of the operation.
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Affiliation(s)
- Pengfei Wu
- grid.412449.e0000 0000 9678 1884Department of Neurosurgery, the First Affiliated Hospital, China Medical University, 155 Nanjing Street, Heping District, Shenyang, 110001 Liaoning China
| | - Yanlei Guan
- grid.412449.e0000 0000 9678 1884Department of Neurosurgery, the First Affiliated Hospital, China Medical University, 155 Nanjing Street, Heping District, Shenyang, 110001 Liaoning China
| | - Minghao Wang
- grid.412449.e0000 0000 9678 1884Department of Neurosurgery, the First Affiliated Hospital, China Medical University, 155 Nanjing Street, Heping District, Shenyang, 110001 Liaoning China
| | - Luyang Zhang
- grid.412449.e0000 0000 9678 1884Department of Neurosurgery, the First Affiliated Hospital, China Medical University, 155 Nanjing Street, Heping District, Shenyang, 110001 Liaoning China
| | - Dan Zhao
- grid.412449.e0000 0000 9678 1884Department of Neurosurgery, the First Affiliated Hospital, China Medical University, 155 Nanjing Street, Heping District, Shenyang, 110001 Liaoning China
| | - Xiao Cui
- grid.412449.e0000 0000 9678 1884Department of Neurosurgery, the First Affiliated Hospital, China Medical University, 155 Nanjing Street, Heping District, Shenyang, 110001 Liaoning China
| | - Jiyuan Liu
- grid.412449.e0000 0000 9678 1884Department of Neurosurgery, the First Affiliated Hospital, China Medical University, 155 Nanjing Street, Heping District, Shenyang, 110001 Liaoning China
| | - Bo Qiu
- grid.412449.e0000 0000 9678 1884Department of Neurosurgery, the First Affiliated Hospital, China Medical University, 155 Nanjing Street, Heping District, Shenyang, 110001 Liaoning China
| | - Jun Tao
- grid.412449.e0000 0000 9678 1884Department of Neurosurgery, the First Affiliated Hospital, China Medical University, 155 Nanjing Street, Heping District, Shenyang, 110001 Liaoning China
| | - Yunjie Wang
- grid.412449.e0000 0000 9678 1884Department of Neurosurgery, the First Affiliated Hospital, China Medical University, 155 Nanjing Street, Heping District, Shenyang, 110001 Liaoning China
| | - Shaowu Ou
- grid.412449.e0000 0000 9678 1884Department of Neurosurgery, the First Affiliated Hospital, China Medical University, 155 Nanjing Street, Heping District, Shenyang, 110001 Liaoning China
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Shkarubo AN, Chernov IV, Andreev DN, Konovalov NA, Sinelnikov ME. [Minimally invasive surgery for invaginated CII odontoid process]. ZHURNAL VOPROSY NEIROKHIRURGII IMENI N. N. BURDENKO 2023; 87:5-12. [PMID: 37325821 DOI: 10.17116/neiro2023870315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Odontoidectomy is indicated for anterior compression of the brainstem by invaginated odontoid process. This procedure can currently be performed via transoral microsurgical and transnasal endoscopic access. OBJECTIVE To analyze the results of endoscopic transnasal odontoidectomy. MATERIAL AND METHODS We assessed treatment outcomes in 10 patients with anterior compression of the brainstem by invaginated odontoid process. All patients underwent endoscopic transnasal odontoidectomy. RESULTS Brainstem decompression was achieved in all cases. CONCLUSION Currently, endoscopic transnasal approach is gradually replacing the transoral one in some patients requiring anterior odontoidectomy. Analysis of literature data reflects the development of this technique taking into account various features of surgical treatment including optimization of dimensions of surgical field, attempts to perform C1-sparing surgeries and analysis of sufficient size of trepanation. Nasopalatine and nasoclival lines are used to select optimal access. Nevertheless, the choice of access depends on equipment of the hospital and surgical experience in most cases.
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Affiliation(s)
| | - I V Chernov
- Burdenko Neurosurgical Center, Moscow, Russia
| | - D N Andreev
- Burdenko Neurosurgical Center, Moscow, Russia
| | | | - M E Sinelnikov
- Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
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8
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Palmisciano P, Al Fawares Y, Woodhouse C, Yang G, Xu A, d'Herbemont S, Hoang S, McGuire JL, Phillips KM, Cheng J, Forbes JA. The Impact of C1 Anterior Arch Preservation on Spine Stability After Odontoidectomy: Systematic Review and Meta-Analysis. World Neurosurg 2022; 167:165-175.e2. [PMID: 36049722 DOI: 10.1016/j.wneu.2022.08.105] [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: 07/21/2022] [Accepted: 08/23/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND Odontoidectomy for symptomatic irreducible ventral brainstem compression at the craniovertebral junction may result in spine instability requiring subsequent instrumentation. There is no consensus on the importance of C1 anterior arch preservation in prevention of iatrogenic instability. We conducted a systematic review of the impact of C1 anterior arch preservation on postodontoidectomy spine stability. METHODS PubMed, Embase, Scopus, Web of Science, and Cochrane were searched following the PRISMA guidelines to include studies of patients undergoing odontoidectomy. Random-effect model meta-analyses were performed to compare spine stability between C1 anterior arch preservation versus removal and posttreatment outcomes between transoral approaches (TOAs) versus endoscopic endonasal approaches (EEAs). RESULTS We included 27 studies comprising 462 patients. The most common lesions were basilar invagination (73.3%) and degenerative arthritis (12.6%). Symptoms included myelopathy (72%) and neck pain (43.9%). Odontoidectomy was performed through TOA (56.1%) and EEA corridors (34.4%). The C1 anterior arch was preserved in 16.7% of cases. Postodontoidectomy stabilization was performed in 83.3% patients. Median follow-up was 27 months (range, 0.1-145). Rates of spine instability were significantly lower (P = 0.004) when the C1 anterior arch was preserved. Postoperative clinical improvement and pooled complications were reported in 78.8% and 12.6% of patients, respectively, with no significant differences between TOA and EEA (P = 0.892; P = 0.346). Patients undergoing EEA had significantly higher rates of intraoperative cerebrospinal fluid leaks (P = 0.002). CONCLUSIONS Odontoidectomy is safe and effective for treating craniovertebral junction lesions. Preservation of the C1 anterior arch seems to improve maintenance of spine stability. TOA and EEA show comparable outcomes and complication rates.
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Affiliation(s)
- Paolo Palmisciano
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Yara Al Fawares
- University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Cody Woodhouse
- Department of Neurosurgery, Allegheny Health Network, Pittsburgh, USA
| | - George Yang
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Alice Xu
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Sophie d'Herbemont
- Department of Neurological Surgery, Centro Médico Nacional 20 de Noviembre, ISSSTE, Mexico City, Mexico
| | - Stanley Hoang
- Department of Neurosurgery, Ochsner LSU Health Shreveport, Shreveport, Louisiana, USA
| | - Jennifer L McGuire
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Katie M Phillips
- Department of Otolaryngology, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Joseph Cheng
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Jonathan A Forbes
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.
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Forbes JA, Palmisciano P, McGough D, Kumar C, Hussein AE, Slobodyan A, Kaye J, Matur AV, McGuire JL, Andaluz N, Phillips KM, Prestigiacomo CJ, Ashghar F, Virojanapa J, Cheng JS. C1 Lateral Mass Screw Placement Through Endonasal Corridor for Purpose of O-C1 Fusion: Morphometric Analysis in Cadaveric Specimens. World Neurosurg 2022; 167:e614-e619. [PMID: 36007772 DOI: 10.1016/j.wneu.2022.08.061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/11/2022] [Accepted: 08/12/2022] [Indexed: 10/31/2022]
Abstract
BACKGROUND Odontoidectomy may pose some risks for O-C1 and/or C1-C2 instability, with previous authors reporting techniques for endonasal C1-C2 fusion. However, no technique for endonasal O-C1 fusion currently exists. We sought to describe the feasibility of endonasal anterior C1 (AC1) screw placement for endonasal O-C1 fusion. METHODS Seven adult cadaveric heads were studied for endonasal placement of 14 C1 screws. Using thin-cut computed tomography (CT)-based "snapshot" neuronavigation assistance, 4 mm x 22 mm screws were placed in the C1 lateral mass using a 0° driver. Post-placement CT scans were obtained to determine site-of-entry measured from C1 anterior tubercle, screw angulation in axial and sagittal planes, and screw proximity to the central canal and foramen transversarium. RESULTS Average site-of-entry was 16.57 mm lateral, 2.23 mm rostral, and 5.53 mm deep to the anterior-most portion of the C1 ring. Average axial angulation was 19.49° lateral to midline, measured at the C1 level. Average sagittal angulation was 13.22° inferior to the palatal line, measured from the hard palate to the opisthion. Bicortical purchase was achieved in 11 screws (78.6%). Partial breach of the foramen transversarium was observed in 2 screws (14.3%), violation of the O-C1 joint space in 1 (7.1%), and violation of the central canal in 0 (0%). Average minimum screw distances from the unviolated foramen transversaria and central canal were 1.97 mm and 4.04 mm. CONCLUSIONS Navigation-assisted endonasal placement of AC1 screws is feasible. Additional studies should investigate the biomechanical stability of anterior C1 screw-plating systems, with anterior condylar screws as superior fixation point, compared to traditional posterior O-C1 fusion.
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Affiliation(s)
- Jonathan A Forbes
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.
| | - Paolo Palmisciano
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Daniel McGough
- University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Chitra Kumar
- University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Ahmed E Hussein
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Alesia Slobodyan
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Joel Kaye
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Abhijith V Matur
- Department of Radiology, University of Kentucky, Lexington, Kentucky, USA
| | - Jennifer L McGuire
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Norberto Andaluz
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Katie M Phillips
- Department of Otolaryngology, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Charles J Prestigiacomo
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Ferhan Ashghar
- Department of Orthopedic Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Justin Virojanapa
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Joseph S Cheng
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
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10
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Penner F, De Marco R, Di Perna G, Portonero I, Baldassarre B, Garbossa D, Zenga F. Endoscopic endonasal odontoidectomy: a long-term follow-up results for a cohort of 21 patients. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2022; 31:2693-2703. [PMID: 35859067 DOI: 10.1007/s00586-022-07308-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 03/29/2022] [Accepted: 06/24/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND Endoscopic endonasal odontoidectomy (EEO) has been described as a potential approach for craniovertebral junction (CVJ) disease which could cause anterior bulbomedullary compression and encroaching. Due to the atlantoaxial junction's uniqueness and complex biomechanics, treating CVJ pathologies uncovers the challenge of preventing C1-C2 instability. A large series of patients treated with endonasal odontoidectomy is reported, analyzing the feasibility and necessity of whether or not to perform posterior stabilization. Furthermore, the focus is on the long-term follow-up, especially those whom only underwent partial C1 arch preservation without posterior fixation. METHODS This study is a retrospective analysis of patients with ventral spinal cord compression for non-reducible CVJ malformation, consecutively treated with EEO from July 2011 to March 2019. Postoperative dynamic X-ray and CT scans were obtained in each case in order to document CVJ decompression as well as to exclude instability. The anterior atlas-dens interval, posterior atlas-dens interval and C1-C2 total lateral overhang were measured as a morphological criteria to determine upper cervical spine stability. RESULTS Twenty-one patients (11:10 F:M) with a mean age of 60.6 years old at the time of surgery (range 34-84 years) encountered the inclusion criteria. For all 21 patients, a successful decompression was achieved at the first surgery. In 11 patients, the partial C1 arch integrity did not require a posterior cervical instrumentation on the bases of postoperative and constant follow-up radiological examination. In 13 cases, an improvement of motor function was recorded at the time of discharge. Only one patient had further motor function improvement at follow-up. Among the patients that did not show any significant motor change at discharge, 4 patients showed an improvement at the last follow-up. CONCLUSIONS The outcomes, even in C1 arch preservation without posterior fixation, are promising, and it could be said that the endonasal route potentially represents a valid option to treat lesions above the nasopalatine line.
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Affiliation(s)
- Federica Penner
- Section of Neurosurgery, Department of Neuroscience, University of Turin, Via Cherasco 15, 10126, Turin, Italy
| | - Raffaele De Marco
- Section of Neurosurgery, Department of Neuroscience, University of Turin, Via Cherasco 15, 10126, Turin, Italy
| | - Giuseppe Di Perna
- Section of Neurosurgery, Department of Neuroscience, University of Turin, Via Cherasco 15, 10126, Turin, Italy.
| | - Irene Portonero
- Section of Neurosurgery, Department of Neuroscience, University of Turin, Via Cherasco 15, 10126, Turin, Italy
| | - Bianca Baldassarre
- Section of Neurosurgery, Department of Neuroscience, University of Turin, Via Cherasco 15, 10126, Turin, Italy
| | - Diego Garbossa
- Section of Neurosurgery, Department of Neuroscience, University of Turin, Via Cherasco 15, 10126, Turin, Italy
| | - Francesco Zenga
- Section of Neurosurgery, Department of Neuroscience, University of Turin, Via Cherasco 15, 10126, Turin, Italy
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11
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Forbes JA, Nebor I, Hussein A, Woodhouse C, Ceja DG, Avendano-Pradel R, Andaluz N, Sedaghat AR, Phillips K, Prestigiacomo C, Virojanapa J, Cheng J, Rosito DM, Zuccarello M. Roadmap to Ventral Craniocervical Junction Through the Endonasal Corridor: Anatomic Evaluation of Inverted U-Shaped Nasopharyngeal Flap Exposure in a Cadaveric Study. Oper Neurosurg (Hagerstown) 2022; 23:e2-e9. [PMID: 35486872 DOI: 10.1227/ons.0000000000000200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 01/17/2022] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND There is a paucity of data in the literature describing quantitative exposure of the ventral craniocervical junction through the endonasal corridor in a safe manner mindful of locoregional anatomy. OBJECTIVE To quantify ventromedial exposure of O-C1 and C1-2 articular structures after turning an inverted U-shaped nasopharyngeal flap (IUNF) and to obtain measurements assessing the distance of flap margins to adjacent neurovascular structures. METHODS In 8 cadaveric specimens, an IUNF was fashioned using a superior incision below the level of the pharyngeal tubercule of the clivus and lateral incisions in the approximate region of Rosenmuller fossae bilaterally. Measurements with calipers and/or neuronavigation software included flap dimensions, exposure of O-C1 and C1-2 articular structures, inferior reach of IUNF, and proximity of the internal carotid artery (ICA) and hypoglossal nerve to IUNF margins. RESULTS The IUNF facilitated exposure of an average of 9 mm of the medial surfaces of the right/left O-C1 joints without transgression of the carotid arteries or hypoglossal nerves. The C1-2 articulation could not be routinely accessed. The margins of the IUNF were not in close (<5 mm) proximity to the ICA in any of the 8 specimens. In 6 of 8 specimens, the dimensions of the IUNF were in close (<5 mm) horizontal or vertical proximity to the hypoglossal foramina. CONCLUSION The IUNF provided safe and reliable access to the medial O-C1 articulation. Given the close proximity of the exocranial hypoglossal foramen, neuronavigation assistance and neuromonitoring with attention to the superolateral IUNF margin are recommended.
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Affiliation(s)
- Jonathan A Forbes
- Department of Neurological Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Ivanna Nebor
- Department of Neurological Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Ahmad Hussein
- Department of Neurological Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Cody Woodhouse
- Department of Neurological Surgery, Allegheny General Hospital, Pittsburgh, Pennsylvania, USA
| | - David Gallardo Ceja
- Department of Neurological Surgery, Centro Médico Nacional 20 de Noviembre, ISSSTE, Mexico City, Mexico
| | - Rafael Avendano-Pradel
- Department of Neurological Surgery, Centro Médico Nacional 20 de Noviembre, ISSSTE, Mexico City, Mexico
| | - Norberto Andaluz
- Department of Neurological Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Ahmad R Sedaghat
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Katie Phillips
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Charles Prestigiacomo
- Department of Neurological Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Justin Virojanapa
- Department of Neurological Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Joseph Cheng
- Department of Neurological Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Diego Mendez Rosito
- Department of Neurological Surgery, Centro Médico Nacional 20 de Noviembre, ISSSTE, Mexico City, Mexico
| | - Mario Zuccarello
- Department of Neurological Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
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12
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Algattas HN, Okonkwo DO, Snyderman C, Gardner PA, Wang EW, Zenonos GA. Staged Repositioning in Endoscopic Endonasal Odontoidectomy Maximizes Decompression While Allowing Preservation of the C1 Anterior Arch: A Technical Note. World Neurosurg 2021; 151:118-123. [PMID: 33940272 DOI: 10.1016/j.wneu.2021.04.105] [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: 03/29/2021] [Revised: 04/23/2021] [Accepted: 04/23/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Preservation of the anterior arch of C1 in endoscopic endonasal odontoidectomy has been proposed as an alternative to complete C1 arch resections, potentially affording less destabilization of the craniocervical junction. Nonetheless, this approach may limit the decompression achieved. In this case, intraoperative repositioning allowed maximal decompression while preserving the anterior arch of C1. METHODS A 79-year-old woman presented with suboccipital pain caused by an expansile and compressive mass centered on the dens. Notably, the mass occluded both vertebral arteries resulting in small cerebellar strokes. An endoscopic endonasal approach for diagnosis and decompression was performed followed by posterior fixation. RESULTS Given the significant compression, the patient was initially positioned in slight cervical extension. After rhinopharyngeal flap harvest, the top half of the anterior arch of C1 was resected, maintaining its structural integrity. The odontoidectomy was completed flush to the superior border of the reduced C1 arch. After an intraoperative computed tomography (CT) scan, performed in a neutral position, the patient was then repositioned with cervical flexion. This maneuver presented the residual odontoid above the C1 arch, but, given the partial removal of the dens, it did not result in any change in neuromonitoring. Further odontoid resection was then completed and follow-up CT scan revealed maximal dens removal, extending below the C1 anterior arch in neutral position. CONCLUSIONS In cases of odontoid/atlantoaxial pathology causing significant neural compression, staged intraoperative repositioning can safely maximize the odontoidectomy, while affording preservation of the structural integrity of the anterior arch of C1.
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Affiliation(s)
- Hanna N Algattas
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA.
| | - David O Okonkwo
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Carl Snyderman
- Department of Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Paul A Gardner
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Eric W Wang
- Department of Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Georgios A Zenonos
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
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13
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Dobran M, Paracino R, Nasi D, Aiudi D, Capece M, Carrassi E, Lattanzi S, Rienzo ADI, Iacoangeli M. Laminectomy versus Unilateral Hemilaminectomy for the Removal of Intraspinal Schwannoma: Experience of a Single Institution and Review of Literature. J Neurol Surg A Cent Eur Neurosurg 2021; 82:552-555. [PMID: 33845505 DOI: 10.1055/s-0041-1722968] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
BACKGROUND AND STUDY AIMS Spinal schwannomas are benign slow-growing tumors, and gross total resection is the gold standard of treatment. The conventional surgical approach is laminectomy, which provides a wide working area. Today minimally invasive surgery (MIS) is popular because it is associated with shorter hospital stay, less operative blood loss, minimized tissue traumas and relative postoperative pain, and, and spine surgery, avoidance of spinal instability. MATERIAL AND METHODS From January 2016 to December 2019, we operated on 40 patients with spinal intradural extramedullary tumor (schwannoma) with laminectomy or hemilaminectomy. Baseline medical data, including patients' sex and age, tumor location, days of postoperative bed rest, operative time, length of hospitalization, and 1-month visual analog scale (VAS) value were collected and analyzed. Data analysis was performed using STATA/IC 13.1 statistical package (StataCorp LP, College Station, Texas, United States). RESULTS Hemilaminectomy was associated with faster operative time (p < 0.001), shorter postoperative time spent in bed (p < 0.001), and shorter hospitalization (p < 0.001). At 1-month follow-up, the mean VAS score was 4.6 (1.7) among the laminectomy patients and 2.5 (1.3) among the hemilaminectomy patients (p < 0.001). Postoperative complications occurred in 1 (7.7%) and 7 (25.9%) patients in the hemilaminectomy and laminectomy groups, respectively (p = 0.177). CONCLUSIONS Unilateral hemilaminectomy has significant advantages compared with laminectomy in spinal schwannoma surgery including shorter operative time, less time spent in bed, shorter hospitalization, and less postoperative pain.
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Affiliation(s)
- Mauro Dobran
- Department of Neurosurgery, Università Politecnica delle Marche, Ancona, Italy
| | - Riccardo Paracino
- Department of Neurosurgery, Università Politecnica delle Marche, Ancona, Italy
| | - Davide Nasi
- Department of Neurosurgery, Azienda Ospedaliero-Universitaria di Modena Ospedale Civile di Baggiovara, Modena, Italy
| | - Denis Aiudi
- Department of Neurosurgery, Università Politecnica delle Marche, Ancona, Italy
| | - Mara Capece
- Department of Neurosurgery, Università Politecnica delle Marche, Ancona, Italy
| | - Erika Carrassi
- Department of Neurosurgery, Università Politecnica delle Marche, Ancona, Italy
| | - Simona Lattanzi
- Department of Neurology, Università Politecnica delle Marche, Ancona, Italy
| | | | - Maurizio Iacoangeli
- Department of Neurosurgery, Università Politecnica delle Marche, Ancona, Italy
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14
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Fiani B, Houston R, Siddiqi I, Arshad M, Reardon T, Gilliland B, Davati C, Kondilis A. Retro-Odontoid Pseudotumor Formation in the Context of Various Acquired and Congenital Pathologies of the Craniovertebral Junction and Surgical Techniques. Neurospine 2020; 18:67-78. [PMID: 33211944 PMCID: PMC8021814 DOI: 10.14245/ns.2040402.201] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 08/24/2020] [Indexed: 12/03/2022] Open
Abstract
Retro-odontoid pseudotumor formation consists of an abnormal growth of granulation tissue typically posterior to the odontoid process, resulting as a manifestation of atlantoaxial instability. This instability can occur as a result of conditions ranging from severe mechanical trauma to metabolic disease or autoimmune conditions such as rheumatoid arthritis. A pseudotumor may impinge on the spinal nerves or even the spinal cord and brainstem, manifesting symptoms from severe neck pain to cervicomedullary compression or myelopathy, and in some cases even sudden death. The objective of this review is to consolidate the findings in published case reports and relevant prior literature reviews regarding the formation of retro-odontoid pseudotumor. We address the pathophysiology involved in acquired and congenital pseudotumor formation, including those associated with rheumatoid arthritis (panni). Additionally, we discuss past and current operative techniques designed to curtail and ultimately regress a retro-odontoid pseudotumor and pannus. Surgical techniques that are addressed include ventral decompression (both transoral and transnasal), dorsal decompression, and indications for posterior instrumentation in pannus formation, particularly in cases that may be sufficiently treated in lieu of an anterior approach. Finally, we will examine the role of external orthoses as both a method of conservative treatment as well as a potential adjunct to the aforementioned surgical procedures.
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Affiliation(s)
- Brian Fiani
- Department of Neurosurgery, Desert Regional Medical Center, Palm Springs, CA, USA
| | - Rebecca Houston
- Department of Neurosurgery, Desert Regional Medical Center, Palm Springs, CA, USA
| | - Imran Siddiqi
- Western University of Health Sciences College of Osteopathic Medicine, Pomona, CA, USA
| | - Mohammad Arshad
- Department of Neurosurgery, Desert Regional Medical Center, Palm Springs, CA, USA
| | - Taylor Reardon
- University of Pikeville, Kentucky College of Osteopathic Medicine, Pikeville, KY, USA
| | | | - Cyrus Davati
- New York Institute of Technology College of Osteopathic Medicine, Glen Head, NY, USA
| | - Athanasios Kondilis
- Michigan State University College of Osteopathic Medicine, East Lansing, MI, USA
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15
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Wang X, Ma L, Liu Z, Chen Z, Wu H, Jian F. Reconsideration of the transoral odontoidectomy in complex craniovertebral junction patients with irreducible anterior compression. Chin Neurosurg J 2020; 6:33. [PMID: 32944290 PMCID: PMC7491095 DOI: 10.1186/s41016-020-00210-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 08/12/2020] [Indexed: 11/25/2022] Open
Abstract
Background Although the single-stage posterior realignment craniovertebral junction (CVJ) surgery could treat most of the basilar invagination (BI) and atlantoaxial dislocation (AAD), there are still some cases with incomplete decompression of the spinal cord, which remains a technique challenging situation. Methods Eleven patients were included with remained myelopathic symptoms after posterior correction due to incomplete decompression of the spinal cord. Transoral odontoidectomy assisted by image-guided navigation and intraoperative CT was performed. Clinical assessment and image measurements were performed preoperatively and at the most recent follow-up. Results Eleven patients were followed up for an average of 47 months. Symptoms were alleviated in 10 of 11 patients (90.9%). One patient died of an unknown reason 1 week after the transoral approach. The clinical and radiological parameters pre- and postoperatively were reported. Conclusion Transoral odontoidectomy as a salvage surgery is safe and effective for properly selected BI and AAD patients after inadequate indirect decompression from posterior distraction and fixation. Image-guided navigation and intraoperative CT can provide precise information and accurate localization during operation, thus enabling complete resection of the odontoid process and decompression of the spinal cord.
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Affiliation(s)
- Xingwen Wang
- Department of Neurological Surgery, Xuanwu Hospital, Capital Medical University, Beijing, 100053 China
| | - Longbing Ma
- Department of Neurological Surgery, Xuanwu Hospital, Capital Medical University, Beijing, 100053 China
| | - Zhenlei Liu
- Department of Neurological Surgery, Xuanwu Hospital, Capital Medical University, Beijing, 100053 China
| | - Zan Chen
- Department of Neurological Surgery, Xuanwu Hospital, Capital Medical University, Beijing, 100053 China
| | - Hao Wu
- Department of Neurological Surgery, Xuanwu Hospital, Capital Medical University, Beijing, 100053 China
| | - Fengzeng Jian
- Department of Neurological Surgery, Xuanwu Hospital, Capital Medical University, Beijing, 100053 China
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16
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Woodhouse C, Slobodian O, Nebor I, Xu A, Zhebrykov D, Montemagno K, Kashyrina O, Matern T, Hoang S, Mendez-Rosito D, Cheng J, Forbes J. Risk of Infection Associated with Transmucosal Placement of Instrumentation in Clean-Contaminated Field: Systematic Analysis. World Neurosurg 2020; 135:330-334. [DOI: 10.1016/j.wneu.2019.11.168] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 11/27/2019] [Accepted: 11/28/2019] [Indexed: 10/25/2022]
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17
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Pacca P, Marengo N, Di Perna G, Penner F, Ajello M, Garbossa D, Zenga F. Endoscopic Endonasal Approach for Urgent Decompression of Craniovertebral Junction in Syringobulbia. World Neurosurg 2019; 130:499-505. [PMID: 31295597 DOI: 10.1016/j.wneu.2019.07.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Revised: 06/29/2019] [Accepted: 07/01/2019] [Indexed: 12/01/2022]
Abstract
BACKGROUND Syringobulbia is an uncommon lesion that occurs in the central nervous system; it is often defined as a pathologic cavitation in the brainstem. The cases with partial blockage of the cerebrospinal fluid pathways at the level of the foramen magnum are more common and the most important group. The most common treatment of syringobulbia is craniovertebral decompression. CASE DESCRIPTION This paper reports a case of a symptomatic syringobulbia in which an urgent endoscopic endonasal approach to the craniovertebral junction (CVJ) was done to limit bulbo-medullary compression and rapid neurologic deterioration. A 69-year-old man was admitted to the hospital because of acute onset of dysphonia, dysphagia, imbalance, and vomiting. Magnetic resonance imaging revealed a cystic lesion in the brainstem, suggestive of a syringobulbia in Klippel Feil syndrome with CVJ stenosis. CONCLUSIONS This case report details the successful use of endoscopic endonasal anterior decompression to treat syringobulbia, and adds to the growing literature in support of the endonasal endoscopic approach as a safe and feasible means for decompressing the craniocervical junction, even in the setting of urgency. However, prudent patient selection, combined with sound clinical judgment, access to instrumentation, and intraoperative imaging cannot be overemphasized.
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Affiliation(s)
- Paolo Pacca
- Division of Neurosurgery, Department of Neurosciences, University of Torino, Turin, Italy
| | - Nicola Marengo
- Division of Neurosurgery, Department of Neurosciences, University of Torino, Turin, Italy
| | - Giuseppe Di Perna
- Division of Neurosurgery, Department of Neurosciences, University of Torino, Turin, Italy.
| | - Federica Penner
- Division of Neurosurgery, Department of Neurosciences, University of Torino, Turin, Italy
| | - Marco Ajello
- Division of Neurosurgery, Department of Neurosciences, University of Torino, Turin, Italy
| | - Diego Garbossa
- Division of Neurosurgery, Department of Neurosciences, University of Torino, Turin, Italy
| | - Francesco Zenga
- Division of Neurosurgery, Department of Neurosciences, University of Torino, Turin, Italy
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18
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Tominaga H, MacDowall A, Olerud C. Surgical treatment of the severely damaged atlantoaxial joint with C1-C2 facet spacers: Three case reports. Medicine (Baltimore) 2019; 98:e15827. [PMID: 31145323 PMCID: PMC6708912 DOI: 10.1097/md.0000000000015827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
RATIONALE Atlantoaxial subluxation (AAS), caused by congenital factors, inflammation such as rheumatoid arthritis, infection, neoplasia, or trauma, is rare and severely erodes and subluxates atlantoaxial (AA) joints. For these patients, surgical reduction, and stabilization are difficult. Surgery, including anterior transoral decompression and posterior fixation, anterior endonasal decompression and fixation, and posterior decompression with AA or occipitocervical fixation, is often the only treatment available. However, there have only been 2 reports of C1-C2 facet spacer use in treating AAS. Here, we report the case histories of 3 patients with severely damaged and subluxated AA joints and symptomatic basilar invagination (BI), malalignment, or C2 root compression. PATIENT CONCERNS The cases included 2 women with rheumatoid arthritis and 1 man with spondyloarthropathy secondary to ulcerative colitis. DIAGNOSIS Radiographic imaging revealed severely damaged and subluxated AA joints. Their symptoms included worsening pain in the neck or occiput with or without myelopathy and neuralgia. INTERVENTIONS After realignment with C1-C2 spacers and posterior C1-C2 screw fixation, the patient symptoms were resolved. OUTCOMES Of note, 2 of the 3 patients were healed without complications. One patient who underwent secondary revision surgery because of rod breakage and obvious nonunion at C0-C2 was determined to be healed at 1-year follow-up after the revision surgery. LESSONS We confirmed that C1-C2 facet spacers both reduced BI and occipitocervical coronal malalignment as well as releasing C2 root compression. Therefore, surgical restoration and fixation should be a required treatment in this very rare group of patients.
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Affiliation(s)
- Hiroyuki Tominaga
- Department of Orthopaedic Surgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Japan
| | - Anna MacDowall
- Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Claes Olerud
- Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
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19
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Nasi D, Dobran M, di Somma L, Di Rienzo A, De Nicola M, Iacoangeli M. Coil Extrusion into the Naso- and Oropharynx Ten Years after Internal Carotid Artery Pseudoaneurysm Embolization: A Case Report. Case Rep Neurol 2019; 11:4-9. [PMID: 30792650 PMCID: PMC6381882 DOI: 10.1159/000496283] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Coil migration and extrusion outside the cranial compartment after embolization of cerebral aneurysms represents a very rare complication of the endovascular procedures and few cases are reported in the literature. Instability of the vascular malformation wall and the resolution of the intramural hematoma, especially in pseudoaneurysm, might generate extravascular migration of the coils in the first months after embolization. However, to the best of our knowledge, an extrusion of coil 10 years after embolization has never been reported. We reported the unique case of a patient with coil extrusion into the naso- and oropharynx 10 years after internal carotid artery pseudoaneurysm embolization. The pseudoaneurysm occurred after an internal carotid artery injury during an endoscopic endonasal surgery for a clival giant cell tumor.
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Affiliation(s)
- Davide Nasi
- Department of Neurosurgery, Università Politecnica delle Marche, Ospedali Riuniti, Ancona, Italy
| | - Mauro Dobran
- Department of Neurosurgery, Università Politecnica delle Marche, Ospedali Riuniti, Ancona, Italy
| | - Lucia di Somma
- Department of Neurosurgery, Università Politecnica delle Marche, Ospedali Riuniti, Ancona, Italy
| | - Alessandro Di Rienzo
- Department of Neurosurgery, Università Politecnica delle Marche, Ospedali Riuniti, Ancona, Italy
| | - Maurizio De Nicola
- Department of Neuro-Radiology, Università Politecnica delle Marche, Ospedali Riuniti, Ancona, Italy
| | - Maurizio Iacoangeli
- Department of Neurosurgery, Università Politecnica delle Marche, Ospedali Riuniti, Ancona, Italy
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Choque-Velasquez J, Miranda-Solis F, Colasanti R, Ccahuantico-Choquevilca LA, Hernesniemi J. Modified Pure Endoscopic Approach to Pineal Region: Proof of Concept of Efficient and Inexpensive Surgical Model Based on Laboratory Dissections. World Neurosurg 2018; 117:195-198. [PMID: 29935314 DOI: 10.1016/j.wneu.2018.06.080] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 06/11/2018] [Accepted: 06/12/2018] [Indexed: 10/28/2022]
Abstract
OBJECTIVE In recent decades endoscopic techniques have been increasingly used in neurosurgery as they may offer a valuable close-up view of the working area through a minimally invasive surgical corridor. Herein, we present an inexpensive and efficient endoscopic surgical model using a borescope, which was used for a "modified pure endoscopic approach" to the pineal region. METHODS A borescope video camera was connected to a 16-inch personal computer monitor. A standard midline suboccipital craniotomy was performed on 2 cadaveric heads in the Concorde position. Then, a "borescopic" supracerebellar infratentorial approach was executed, thus reaching the pineal region, which was exposed through an extensive arachnoid dissection. RESULTS Using the previously described model, we were able to provide excellent exposure of the main neurovascular structures of the pineal region, as shown by the intraoperative videos. In 1 specimen we identified an incidental pineal cyst that was meticulously dissected and removed. CONCLUSIONS Our proposed "borescopic" surgical model may represent an inexpensive and efficient alternative to conventional endoscopic techniques and could be used for training purposes, as well as even for clinical procedures, after a proper validation, particularly in economically challenging environments.
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Affiliation(s)
- Joham Choque-Velasquez
- Department of Neurosurgery, Helsinki University Hospital, University of Helsinki, Helsinki, Finland; Alto Andina Anatomy and Physiology Research Center, National University of San Antonio Abad, Cusco, Italy.
| | - Franklin Miranda-Solis
- Alto Andina Anatomy and Physiology Research Center, National University of San Antonio Abad, Cusco, Italy; Microneuroanatomy Laboratory, University Andina, National University of San Antonio Abad, Cusco, Italy
| | - Roberto Colasanti
- Umberto I General Hospital, Politechnic University of Marche, Ancona, Italy; Ospedali Riuniti Marche Nord, Pesaro, Italy
| | | | - Juha Hernesniemi
- Department of Neurosurgery, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
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Wu P, Colasanti R, Lee J, Scerrati A, Ercan S, Zhang J, Ammirati M. Quantitative evaluation of different far lateral approaches to the cranio-vertebral junction using the microscope and the endoscope: a cadaveric study using a tumor model. Acta Neurochir (Wien) 2018; 160:695-705. [PMID: 29479657 DOI: 10.1007/s00701-018-3502-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Accepted: 02/14/2018] [Indexed: 11/26/2022]
Abstract
BACKGROUND Several far lateral approaches have been proposed to deal with cranio-vertebral junction (CVJ) tumors including the basic, transcondylar, and supracondylar far lateral approaches (B-FLA, T-FLA, and S-FLA). However, the indications on when to use one versus the other are not well systematized yet. Our purpose is to evaluate in an experimental cadaveric setting which approach is best suited to remove tumors of different sizes. METHODS We implanted at the CVJ, using a transoral approach, tumor models of different sizes (five 1-cm3 and five 3-cm3 tumors) in ten embalmed cadaveric heads. The artificial tumors were exposed via the three approaches using endoscopic-assisted microneurosurgical technique and neuronavigation. The skull base area exposed and the maneuverability linked to each approach were evaluated using neuronavigation. RESULTS In 1-cm3 tumors, the T-FLA and the S-FLA exposed a significantly larger skull base area than the B-FLA both using the microscope and the endoscope (P < 0.05); the T-FLA executed with the microscope provided wider vertical and horizontal maneuverability than the B-FLA (P = 0.030 and 0.017, respectively); the S-FLA executed with the endoscope provided wider vertical maneuverability than the T-FLA (P = 0.031). The S-FLA executed using the microscope and the endoscope provided wider vertical maneuverability than the B-FLA both in 1 and 3-cm3 tumors (P < 0.05). CONCLUSIONS In 1-cm3 tumors, the S-FLA and the T-FLA expose a wider skull base area than the B-FLA. In larger tumors, the exposure is similar for all three approaches. Use of the endoscope in an assistive mode may further increase the surgical exposure and maneuverability.
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Affiliation(s)
- Pengfei Wu
- Department of Neurosurgery, the First Affiliated Hospital, China Medical University, Shenyang, Liaoning, China
- The Dardinger Skull Base Laboratory, Department of Neurological Surgery, Wexner Medical Center, The Ohio State University, Columbus, OH, USA
| | - Roberto Colasanti
- The Dardinger Skull Base Laboratory, Department of Neurological Surgery, Wexner Medical Center, The Ohio State University, Columbus, OH, USA
- Department of Neurosurgery, Umberto I General Hospital, Università Politecnica delle Marche, Ancona, Italy
- Department of Neurosurgery, Ospedali Riuniti Marche Nord, Pesaro, Italy
| | - Jungshun Lee
- The Dardinger Skull Base Laboratory, Department of Neurological Surgery, Wexner Medical Center, The Ohio State University, Columbus, OH, USA
- Section of Neurosurgery, Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Alba Scerrati
- The Dardinger Skull Base Laboratory, Department of Neurological Surgery, Wexner Medical Center, The Ohio State University, Columbus, OH, USA
- Institute of Neurosurgery, Catholic University, Rome, Italy
| | - Serdar Ercan
- The Dardinger Skull Base Laboratory, Department of Neurological Surgery, Wexner Medical Center, The Ohio State University, Columbus, OH, USA
| | - Jun Zhang
- Department of Radiology and Wright Center of Innovation in Biomedical Imaging, Wexner Medical Center, The Ohio State University, Columbus, OH, USA
| | - Mario Ammirati
- The Dardinger Skull Base Laboratory, Department of Neurological Surgery, Wexner Medical Center, The Ohio State University, Columbus, OH, USA.
- Department of Neurosurgery, Mercy Health/St. Rita Medical Center, 770 W High Street, Suite 220, Lima, OH, 45806, USA.
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