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Battistin U, Nguyen R, Ghaith AK, El-Hajj VG, Soltan F, Ghaith S, Weinberg JH, Elmi-Terander A, Grossbach AJ, Akinduro OO. The impact of socioeconomic determinants on the access to care and survival in patients with spinal chordomas- a national cancer database analysis. J Neurooncol 2024:10.1007/s11060-024-04745-9. [PMID: 39102119 DOI: 10.1007/s11060-024-04745-9] [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: 04/26/2024] [Accepted: 06/10/2024] [Indexed: 08/06/2024]
Abstract
PURPOSE Chordomas are rare malignant neoplasms primarily treated surgically. Disparities related to race and socioeconomic status, may affect patient outcomes. This study aims to identify prognostic factors for access to care and survival in patients with spinal chordomas. METHODS The NCDB database was queried between the years 2004 and 2017. Kaplan-Meier curves were constructed to compare survival probabilities among different groups, based on race and socioeconomic determinents. RESULTS 1769 patients were identified, with 87% being White, 5% Hispanic, 4% Black, and Asian each. The mean age was 61.3 years. Most patients received care at academic/research centers and lived in a large metropolitan area, with no difference between races. A significantly higher percentage of Black patients did not undergo surgery (p < 0.001), with no statistically significant difference in survival between races (p = 0.97). A higher survival probability was seen in patients with other government insurances (p < 0.0001), in higher income quartiles (p < 0.0001), in metropolitan areas (p = 0.023), and at an academic/research center (p < 0.0001). A lower survival probability was seen in patients who are uninsured, in rural areas, and at community cancer programs (p < 0.0001). CONCLUSION This study highlights disparities in access to surgical intervention for patients with spinal chordomas, especially among Black individuals. It emphasizes the significant impact of insurance status and income on access to surgical care and highlights geographical and institutional variations in survival rates. Addressing socioeconomic differences is crucial for fostering equity in neurosurgical outcomes.
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Affiliation(s)
| | - Ryan Nguyen
- Department of Neurological Surgery, Mayo Clinic, Rochester, MN, USA
| | | | - Victor Gabriel El-Hajj
- Department of Neurological Surgery, Mayo Clinic, Rochester, MN, USA
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Fatima Soltan
- School of Public Health, Imperial College London, London, UK
| | - Sara Ghaith
- Mayo Clinic Pharmacy, Mayo Clinic, Rochester, MN, USA
| | - Joshua H Weinberg
- Department of Neurological Surgery, The Ohio State University College of Medicine, Columbus, OH, USA
| | | | - Andrew J Grossbach
- Department of Neurological Surgery, The Ohio State University College of Medicine, Columbus, OH, USA
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2
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Yu AC, Ko M, Han AY, St John M, Chhetri DK. Speech and Swallowing Outcomes of Surgically Managed Cervical Chordoma: A Case Series. Laryngoscope 2024; 134:3706-3712. [PMID: 38544468 DOI: 10.1002/lary.31418] [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: 09/23/2023] [Revised: 03/08/2024] [Accepted: 03/18/2024] [Indexed: 07/13/2024]
Abstract
OBJECTIVES Cervical chordoma is a rare, low-grade primary bone tumor occurring in the axial skeleton. Due to challenges in surgical exposure caused by anatomic location, patients may experience dysfunction in speech and swallowing. The objective of this study was to characterize speech and swallowing outcomes for patients undergoing surgical resection of cervical chordoma. Moreover, we detail in-depth two cases with similar initial presentations to compare prognostic factors and management strategies. METHODS Eleven patients with histologically confirmed cervical chordoma treated between 1993 and 2020 were included in this retrospective case series. Outcomes measured included overall survival, disease-free survival, need for enteral feeds, as well as results of modified barium swallow study (MBSS) and fiberoptic laryngoscopy. RESULTS The mean age at diagnosis was 55.9 years. The patient population was 81.8% male. Mean survival after diagnosis was 96 months. Four (36.4%) patients required post-operative MBSS and demonstrated aspiration. All four of these patients presented with tumors in the superior cervical spine and received surgeries utilizing anterior approaches. Of the four, 2 required enteral feeds long-term. Four (36.4%) patients endorsed dysphonia. One patient developed post-operative right vocal fold paresis. The remaining three patients experienced stable dysphonia pre- and post-operatively. Additionally, three (27%) patients required tracheostomy placement, two of which remained in place long-term. CONCLUSIONS Dysphagia is a common side effect of cervical chordoma resection. It is associated with the use of an anterior approach during resection and with tumors located in the superior cervical spine. Patients with postoperative dysphagia should receive early multidisciplinary swallow rehabilitation. LEVEL OF EVIDENCE 4 Laryngoscope, 134:3706-3712, 2024.
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Affiliation(s)
- Alice C Yu
- Department of Head and Neck Surgery, David Geffen School of Medicine, University of California Los Angeles, Los Angeles (UCLA), Los Angeles, California, U.S.A
| | - Myungjun Ko
- Department of Head and Neck Surgery, David Geffen School of Medicine, University of California Los Angeles, Los Angeles (UCLA), Los Angeles, California, U.S.A
| | - Albert Y Han
- Department of Head and Neck Surgery, University of Southern California (USC), Los Angeles, California, U.S.A
| | - Maie St John
- Department of Head and Neck Surgery, David Geffen School of Medicine, University of California Los Angeles, Los Angeles (UCLA), Los Angeles, California, U.S.A
- University of California Los Angeles, Los Angeles (UCLA) Head and Neck Cancer Program, Los Angeles, California, U.S.A
| | - Dinesh K Chhetri
- Department of Head and Neck Surgery, David Geffen School of Medicine, University of California Los Angeles, Los Angeles (UCLA), Los Angeles, California, U.S.A
- University of California Los Angeles, Los Angeles (UCLA) Head and Neck Cancer Program, Los Angeles, California, U.S.A
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3
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Peeters JB, Dessesard Olijnyk L, Janelle F, Shedid D, Bojanowski MW, Labidi M. Surgical management of tumors of the cervical spine and craniovertebral junction involving the vertebral artery: A narrative review. Neurochirurgie 2024; 70:101550. [PMID: 38552591 DOI: 10.1016/j.neuchi.2024.101550] [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: 02/28/2024] [Accepted: 03/12/2024] [Indexed: 05/12/2024]
Abstract
BACKGROUND The vertebral artery (VA) is in close proximity to bony structures, nerves and nerve sheaths of the cervical spine and craniovertebral junction (CVJ). These structures can be sources of tumors that are responsible for displacement, encasement and sometimes invasion of the VA. Removing these tumors while minimizing the risk of vascular injury requires thorough knowledge of the vascular anatomy, risk factors of vascular injury, the relationships of each tumor type with the VA, and the different surgical approaches and techniques that result in the best outcomes in terms of vascular control, tumoral exposure and resection. OBJECTIVE To present an overview of preoperative and anatomical considerations, differential diagnoses and various approaches to consider in cases of tumors in close relationship with the VA. METHOD A review of recent literature was conducted to examine the anatomy of the VA, the tumors most frequently affecting it, surgical approaches, and the necessary pre-operative preparations for ensuring safe and maximal tumor resection. This review aims to underscore the principles of treatment. CONCLUSION Tumors located at the CVJ and the cervical spine intimately involved with the VA, pose a surgical challenge and increase the risk of incomplete removal of the lesion. Detailed knowledge of the patient-specific anatomy and a targeted pre-operative work-up enable optimal planning of surgical approach and management of the VA, thereby reducing surgical risks and improving extent of resection.
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Affiliation(s)
- Jean-Baptiste Peeters
- Division of Neurosurgery, Department of Surgery, Centre Hospitalier de l'Universite de Montreal (CHUM), 1000 rue St-Denis, Montréal H2X 0C1, QC, Canada
| | - Leonardo Dessesard Olijnyk
- Division of Neurosurgery, Department of Surgery, Centre Hospitalier de l'Universite de Montreal (CHUM), 1000 rue St-Denis, Montréal H2X 0C1, QC, Canada
| | - Felix Janelle
- Division of Neurosurgery, Department of Surgery, Centre Hospitalier de l'Universite de Montreal (CHUM), 1000 rue St-Denis, Montréal H2X 0C1, QC, Canada
| | - Daniel Shedid
- Division of Neurosurgery, Department of Surgery, Centre Hospitalier de l'Universite de Montreal (CHUM), 1000 rue St-Denis, Montréal H2X 0C1, QC, Canada
| | - Michel W Bojanowski
- Division of Neurosurgery, Department of Surgery, Centre Hospitalier de l'Universite de Montreal (CHUM), 1000 rue St-Denis, Montréal H2X 0C1, QC, Canada
| | - Moujahed Labidi
- Division of Neurosurgery, Department of Surgery, Centre Hospitalier de l'Universite de Montreal (CHUM), 1000 rue St-Denis, Montréal H2X 0C1, QC, Canada.
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4
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Garcia D, Akinduro OO, De Biase G, Montaser A, Ramirez R, Chen S, Sandhu SJS, Abode-Iyamah K, Nottmeier E. Single-Photon Emission Computed Tomography (SPECT-CT) as a Predictor of Pain Generators in Patients Undergoing Anterior Cervical Discectomy and Fusion (ACDF) for Axial Cervical Pain. Cureus 2024; 16:e58821. [PMID: 38784355 PMCID: PMC11113084 DOI: 10.7759/cureus.58821] [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] [Accepted: 04/23/2024] [Indexed: 05/25/2024] Open
Abstract
BACKGROUND Axial neck pain is often associated with cervical instability, and surgical options are often reserved for patients with either neurological compromise or deformity of the spine. However, cervical facet arthropathy is often implicated with instability and the location of painful generators is often difficult to ascertain. Single-photon emission computed tomography (SPECT-CT) presents an adjunct to conventional imaging in the workup of patients with suspected facetogenic pain. We aimed to report our experience with patients undergoing anterior cervical discectomy and fusion (ACDF) guided by SPECT-CT for axial cervical pain. METHODS We retrospectively identified all cases undergoing ACDF that presented with axial neck pain where correlating SPECT-CT high metabolism areas were identified. Patients were treated at a tertiary care institution between January 2018 and January 2021. Patients with positive radiotracer uptake pre-operatively were compared with patients undergoing ACDF without uptake on SPECT-CT. The pre- and post-operative patients who reported neck pain at one year were compared. RESULTS Thirty-five patients were included in this retrospective cohort. The median pre- and post-intervention (at one-year follow-up) visual analog score (VAS) of patients undergoing ACDF without uptake on SPECT-CT was 7 and 3 (p<0.01), while the pre- and post-VAS for patients undergoing surgery with positive uptake on SPECT-CT was 8.5 and 0 (p<0.01). Improvement was significantly larger for patients undergoing SPECT-CT-guided ACDF (p=0.02). At one year after surgery, none of the assessed patients required additional surgical intervention. CONCLUSION This case series represents the experience of our group to date with patients undergoing SPECT-CT-guided ACDF with results suggesting potential benefit in guiding fusion.
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Affiliation(s)
| | | | | | | | | | - Selby Chen
- Neurosurgery, Mayo Clinic, Jacksonville, USA
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5
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Li Z, Wang Y, Zhao L, Li Y. Epidemiology, Characteristics, and Prognostic Factors of Primary Atypical Teratoid/Rhabdoid Tumors in the Spinal Canal: A Systematic Review. Neurospine 2024; 21:182-203. [PMID: 38317556 PMCID: PMC10992646 DOI: 10.14245/ns.2347096.548] [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: 10/15/2023] [Revised: 12/09/2023] [Accepted: 12/11/2023] [Indexed: 02/07/2024] Open
Abstract
Primary atypical teratoid/rhabdoid tumors (AT/RTs) in the spinal canal are rare central nervous system (CNS) neoplasms that are challenging to diagnose and treat. To date, there has been no standard treatment regimen for these challenging malignant tumors. Thus, we conducted this research to explore potential prognostic factors and feasible treatment modalities for improving the prognosis of these tumors. Articles were retrieved from the PubMed, MEDLINE, and Embase databases, using the keywords "atypical teratoid/rhabdoid tumor," "rhabdoid tumor," "spine," "spinal," "spinal neoplasm", and "spinal cord neoplasm." All eligible cases demonstrated SMARCB1-deficient expression validated by pathological examination. We collected and analyzed data related to clinical presentation, radiological features, pathological characteristics, treatment modalities and prognosis via Kaplan-Meier and Cox regression analyses. Thirty-six articles comprising 58 spinal AT/RT patients were included in the study. The median progression-free survival (PFS) and overall survival (OS) were 18 and 22 months, respectively. Kaplan-Meier analysis demonstrated significant survival improvements for OS in the nonmetastasis, male, radiotherapy and intrathecal chemotherapy groups as well as for PFS in the chemotherapy and radiotherapy groups. Multivariate analysis revealed that chemotherapy and radiotherapy were prognostic factors for improved PFS, and that intrathecal chemotherapy reduced the risk of mortality. Spinal AT/RTs are uncommon malignant entities with a dismal survival rate. Although our review is limited by variability between cases, there is some evidence revealing potential risk factors and the importance of systematic chemotherapy, intrathecal chemotherapy and radiotherapy in spinal AT/RT treatment modalities.
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Affiliation(s)
- Zhibin Li
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, China
| | - Yubo Wang
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, China
| | - Liyan Zhao
- Department of Clinical Laboratory, The Second Hospital of Jilin University, Changchun, China
| | - Yunqian Li
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, China
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6
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Quiñones-Hinojosa A, Basil A, Moniz-Garcia D, Suarez-Meade P, Ramos A, Jentoft M, Middlebrooks E, Grewal S, Abode-Iyamah K, Bydon M, Sarkaria J, Dickson D, Swanson K, Rosenfeld S, Schiapparelli P, Guerrero-Cazares H, Chaichana K, Meyer F. From the Operating Room to the Laboratory: Role of the Neuroscience Tissue Biorepository in the Clinical, Translational, and Basic Science Research Pipeline. Mayo Clin Proc 2024; 99:229-240. [PMID: 38309935 PMCID: PMC10842257 DOI: 10.1016/j.mayocp.2023.10.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 10/05/2023] [Accepted: 10/25/2023] [Indexed: 02/05/2024]
Abstract
OBJECTIVE To establish a neurologic disorder-driven biospecimen repository to bridge the operating room with the basic science laboratory and to generate a feedback cycle of increased institutional and national collaborations, federal funding, and human clinical trials. METHODS Patients were prospectively enrolled from April 2017 to July 2022. Tissue, blood, cerebrospinal fluid, bone marrow aspirate, and adipose tissue were collected whenever surgically safe. Detailed clinical, imaging, and surgical information was collected. Neoplastic and nonneoplastic samples were categorized and diagnosed in accordance with current World Health Organization classifications and current standard practices for surgical pathology at the time of surgery. RESULTS A total of 11,700 different specimens from 813 unique patients have been collected, with 14.2% and 8.5% of patients representing ethnic and racial minorities, respectively. These include samples from a total of 463 unique patients with a primary central nervous system tumor, 88 with metastasis to the central nervous system, and 262 with nonneoplastic diagnoses. Cerebrospinal fluid and adipose tissue dedicated banks with samples from 130 and 16 unique patients, respectively, have also been established. Translational efforts have led to 42 new active basic research projects; 4 completed and 6 active National Institutes of Health-funded projects; and 2 investigational new drug and 5 potential Food and Drug Administration-approved phase 0/1 human clinical trials, including 2 investigator initiated and 3 industry sponsored. CONCLUSION We established a comprehensive biobank with detailed notation with broad potential that has helped us to transform our practice of research and patient care and allowed us to grow in research and clinical trials in addition to providing a source of tissue for new discoveries.
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Affiliation(s)
| | - Aleeshba Basil
- Department of Neurosurgery, Mayo Clinic, Jacksonville, FL
| | | | | | - Andres Ramos
- Department of Neurosurgery, Mayo Clinic, Jacksonville, FL
| | - Mark Jentoft
- Department of Pathology, Mayo Clinic, Jacksonville, FL
| | | | - Sanjeet Grewal
- Department of Neurosurgery, Mayo Clinic, Jacksonville, FL
| | | | - Mohamad Bydon
- Department of Neurosurgery, Mayo Clinic, Rochester, MN
| | - Jann Sarkaria
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN
| | | | | | | | | | | | | | - Fredric Meyer
- Department of Neurosurgery, Mayo Clinic, Rochester, MN
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7
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Perez-Vega C, Akinduro OO, Ruiz-Garcia HJ, Ghaith AKA, Almeida JP, Jentoft ME, Mahajan A, Janus JR, Bendok BR, Choby GW, Middlebrooks EH, Trifiletti DM, Chaichana KL, Laack NN, Quinones-Hinojosa A, Van Gompel JJ. Extent of Surgical Resection as a Predictor of Tumor Progression in Skull Base Chordomas: A Multicenter Volumetric Analysis. World Neurosurg 2024; 181:e620-e627. [PMID: 37898264 DOI: 10.1016/j.wneu.2023.10.101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 10/19/2023] [Accepted: 10/21/2023] [Indexed: 10/30/2023]
Abstract
INTRODUCTION Skull-base chordomas are aggressive tumors with a propensity for recurrence/progression. Even with standard of care (SoC), 5-year recurrence rates are variable (19%-54%). This high recurrence/progression rate correlates with increased morbidity and mortality. We sought to analyze a multicenter cohort of skull base chordomas to identify predictors of progression in patients receiving SoC. METHODS The [Blinded]-Neurosurgery data registry was queried for skull base chordomas treated from 2008-2020. Patients with the histopathologic diagnosis of chordoma were included. The cohort was composed of patients with preoperative and postoperative magnetic resonance imaging. Tumor volume and radiologic characteristics were obtained from axial T2 sequences using a Digital Imaging and Communications in Medicine viewer. Survival analysis was performed using Kaplan-Meier method, and time-to-event multivariate regression was performed to identify independent predictors of progression. RESULTS The cohort included 195 patients, of which 66 patients met inclusion criteria; median age was 44, and 28 (42%) were females. Fifty-four (82%) received SoC, 7 (11%) resection only, and 5 (8%) radiotherapy only. Median preoperative and postoperative tumor volumes were 11.55 cm3 (0.33-54.89) and 0.34 cm3 (0-42.52), respectively. Recurrence rate with SoC was 37%. Postoperative tumor volume (P = 0.010) correlated with progression. A postoperative volume of >4.9 cm3 (P = 0.044), ≤81.3% of tumor resection (P = 0.02), and lower-clivus location (P < 0.005) correlated with decreased time to progression. CONCLUSIONS Skull base chordomas can be challenging to resect. Even though maximal resection and radiotherapy improve rate of tumor progression, many of these lesions eventually recur. We have identified a postoperative tumor volume of ≥4.9 cm3 and extent of resection of ≤81.3% in this cohort as predictors of progression in patients receiving SoC.
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Affiliation(s)
- Carlos Perez-Vega
- Department of Neurologic Surgery, Mayo Clinic, Jacksonville, Florida, USA
| | | | | | | | - Joao P Almeida
- Department of Neurologic Surgery, Mayo Clinic, Jacksonville, Florida, USA
| | - Mark E Jentoft
- Department of Lab Medicine and Pathology, Jacksonville, Florida, USA
| | - Anita Mahajan
- Department of Radiation Oncology, Rochester, Minnesota, USA
| | | | | | - Garret W Choby
- Department of Otolaryngology, Mayo Clinic, Rochester, Minnesota, USA
| | | | | | | | - Nadia N Laack
- Department of Radiation Oncology, Rochester, Minnesota, USA
| | | | - Jamie J Van Gompel
- Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota, USA.
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8
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Zhou H, Yang X, Wang R, Liu X, Liu Z, Wei F. Misdiagnosis of primary dumbbell chordoma of the cervical spine. Asia Pac J Clin Oncol 2023. [PMID: 37153986 DOI: 10.1111/ajco.13968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 12/31/2022] [Accepted: 04/27/2023] [Indexed: 05/10/2023]
Abstract
AIM This study aimed to analyze the clinical characteristics and outcomes of patients with primary dumbbell chordoma of the cervical spine and to summarize the causes of misdiagnosis. METHODS The clinical data of patients were retrospectively collected. The diagnostic process, surgical procedures, and outcomes were analyzed, then the difference was compared between dumbbell and non-dumbbell chordomas of the cervical spine. RESULTS This study included six patients with primary dumbbell chordoma (one male and five females) with a mean age of 32.2 ± 24.5 years (range: 5-61 years). Five cases with no computed tomography (CT) examination before the first operation were misdiagnosed, and on magnetic resonance imaging (MRI), primary dumbbell chordoma showed the following specific features: extensive invasion of the surrounding soft tissues with an obscure boundary (≥5 cm), intervertebral disc sparing, and hemorrhagic necrosis, furthermore, the CT features included atypical destructive vertebral lesions, minimal intralesional calcification, and neural foraminal enlargement. After comparison with non-dumbbell chordomas, it show statistical difference (p < 0.05) in terms of calcification, foramen enlargement, FNA, misdiagnosis rate but with different recurrent rate. CONCLUSION Primary dumbbell chordomas of the cervical spine can easily be misdiagnosed as neurogenic tumors. Preoperative CT-guided fine-needle aspiration puncture biopsy helps make an accurate diagnosis. Gross total excision with postoperative radiotherapy has been proven effective in reducing the recurrence rate.
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Affiliation(s)
- Hua Zhou
- Department of Orthopedics, Peking University Third Hospital, Beijing, China
- Engineering Research Center of Bone and Joint Precision Medicine, Beijing, China
- Beijing Key Laboratory of Spinal Disease Research, Beijing, China
| | - Xiaoxiong Yang
- Department of Orthopedics, Peking University Third Hospital, Beijing, China
| | - Renji Wang
- Department of Orthopedics, Peking University Third Hospital, Beijing, China
| | - Xiaoguang Liu
- Department of Orthopedics, Peking University Third Hospital, Beijing, China
- Engineering Research Center of Bone and Joint Precision Medicine, Beijing, China
- Beijing Key Laboratory of Spinal Disease Research, Beijing, China
| | - Zhongjun Liu
- Department of Orthopedics, Peking University Third Hospital, Beijing, China
- Engineering Research Center of Bone and Joint Precision Medicine, Beijing, China
- Beijing Key Laboratory of Spinal Disease Research, Beijing, China
| | - Feng Wei
- Department of Orthopedics, Peking University Third Hospital, Beijing, China
- Engineering Research Center of Bone and Joint Precision Medicine, Beijing, China
- Beijing Key Laboratory of Spinal Disease Research, Beijing, China
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Murphey MD, Minn MJ, Contreras AL, Koeller KK, Shih RY, Inwards CY, Yamaguchi T. Imaging of spinal chordoma and benign notochordal cell tumor (BNCT) with radiologic pathologic correlation. Skeletal Radiol 2023; 52:349-363. [PMID: 36063190 DOI: 10.1007/s00256-022-04158-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/27/2022] [Accepted: 07/29/2022] [Indexed: 02/02/2023]
Abstract
Benign notochordal cell tumor (BNCT) and chordoma are neoplasms of notochordal differentiation. BNCT represents notochordal rests, commonly an incidental lesion present in the spine in 19% of cadaveric specimens. BNCTs are often radiographically occult. CT of BNCT frequently reveals patchy sclerosis between areas of maintained underlying trabeculae. BNCT demonstrates marrow replacement on T1-weighted MR images with high signal intensity on T2-weighting. BNCTs are frequently smaller than 35 mm and lack significant enhancement, bone destruction, cortical permeation, or soft tissue components. Biopsy or surgical resection of BNCT is usually not warranted, although imaging surveillance may be indicated. Chordoma is a rare low-grade locally aggressive malignancy representing 1-4% of primary malignant bone tumors. Chordoma is most frequent between the ages of 50-60 years with a male predilection. Clinical symptoms, while nonspecific and location dependent, include back pain, numbness, myelopathy, and bowel/bladder incontinence. Unfortunately, lesions are often large at presentation owing to diagnosis delay. Imaging of chordoma shows variable mixtures of bone destruction and sclerosis, calcification (50-70% at CT) and large soft tissue components. MR imaging of chordoma reveals multilobulated areas of marrow replacement on T1-weighting and high signal intensity on T2-weighting reflecting the myxoid component within the lesion and areas of hemorrhage seen histologically. Treatment of chordoma is primarily surgical with prognosis related to resection extent. Unfortunately, complete resection is often not possible (21-75%) resulting in high local recurrence incidence (19-75%) and a 5-year survival rate of 45-86%. This article reviews and illustrates the clinical characteristics, pathologic features, imaging appearance spectrum, treatment, and prognosis of BNCT and spinal chordoma.
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Affiliation(s)
- Mark D Murphey
- Musculoskeletal Imaging and Neuroradiology, ACR Institute for Radiologic Pathology (AIRP), 1100 Wayne Avenue, Suite 1020, Silver Spring, MD, 20910, USA. .,Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD, 20814, USA. .,Department of Radiology, Walter Reed National Military Medical Center, 8901 Wisconsin Ave., Bethesda, MD, 20889, USA.
| | - Matthew J Minn
- Musculoskeletal Imaging and Neuroradiology, ACR Institute for Radiologic Pathology (AIRP), 1100 Wayne Avenue, Suite 1020, Silver Spring, MD, 20910, USA.,Department of Radiology, Walter Reed National Military Medical Center, 8901 Wisconsin Ave., Bethesda, MD, 20889, USA.,Department of Radiology, Scripps Green Hospital, 10666 N. Torrey Pines Road, La Jolla, CA, 92037, USA
| | | | - Kelly K Koeller
- Musculoskeletal Imaging and Neuroradiology, ACR Institute for Radiologic Pathology (AIRP), 1100 Wayne Avenue, Suite 1020, Silver Spring, MD, 20910, USA.,Department of Radiology, Head and Neck Cancer Center, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Robert Y Shih
- Musculoskeletal Imaging and Neuroradiology, ACR Institute for Radiologic Pathology (AIRP), 1100 Wayne Avenue, Suite 1020, Silver Spring, MD, 20910, USA.,Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD, 20814, USA.,Department of Radiology, Walter Reed National Military Medical Center, 8901 Wisconsin Ave., Bethesda, MD, 20889, USA
| | - Carrie Y Inwards
- Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Takehiko Yamaguchi
- Department of Pathology, Nikko Medical Center, Dokkyo Medical University, 632 Takatoku, Nikko, Tochigi, 321-2593, Japan
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Moniz-Garcia D, Stoloff D, Akinduro O, De Biase G, Sousa-Pinto B, Beeler C, Elder BD, Buchanan I, Abode-Iyamah K. Two- versus multi-rod constructs for adult spinal deformity: A systematic review and Random-effects and Bayesian meta-analysis. J Clin Neurosci 2023; 107:9-15. [PMID: 36459919 DOI: 10.1016/j.jocn.2022.11.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/16/2022] [Accepted: 11/22/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Surgical approaches in adult spinal deformity are associated with high rates of adverse events including hardware failure and rod fracture. Recently, some reports have emerged comparing multiple-rod constructs with 2-rod constructs suggesting potential benefits with the former. However, these have been limited by variability in observed outcomes, which have limited the change of paradigm in adult spinal deformity surgery. OBJECTIVE To compare the rate of rod fracture, pseudoarthrosis, proximal junctional kyphosis and re-operation between 2-RC and M-RC. METHODS MEDLINE/Pubmed, Web of Science and Embase were searched without language restrictions for relevant articles from inception until October 2021. All observational cohort studies assessing patients with ADS undergoing 3-column osteotomy and comparing 2-RC with M-RC procedures on pseudarthrosis, rod fracture, kyphosis or reoperation were included. Data were independently extracted by 2 authors. Random-effects and Bayesian meta-analysis were used. RESULTS Six primary studies met inclusion criteria, yielding a total of 448 participants, with 223 receiving 2-RC and 225 M-RC. The random-effects meta-analysis pointed to a significantly lower risk of rod fracture associated with M-RC (RR = 0.43, 95 %CI = 0.28-0.66), with moderate heterogeneity being observed (I2 = 20 %, p = 0.28). The random-effects meta-analysis pointed to a lower risk of pseudoarthrosis with M-RC than with 2-RC (RR = 0.49, CI = 0.28-0.84, to a lower rate of re-operation with M-RC than with 2-RC (RR = 0.52, CI = 0.28-0.97) and to a similar rate of proximal junctional kyphosis between 2-RC and M-RC patients (RR = 0.91, CI = 0.60-1.39). Low heterogeneity was observed for studies comparing pseudoarthrosis (I2 = 9 %, p = 0.35), re-operation (I2 = 0 %, p = 0.41) and proximal junctional kyphosis (I2 = 0 %, p = 0.85). DISCUSSION These findings suggest that multiple rod-fracture constructs are associated with lower rates of rod fracture, re-operation rates, pseudoarthrosis but not proximal junctional kyphosis. Future studies should address the impact of other modulators of heterogeneity such as body mass index, metal alloys and length of the constructs.
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Affiliation(s)
| | | | | | - Gaetano De Biase
- Department of Neurologic Surgery, Mayo Clinic, Jacksonville, FL, USA
| | - Bernardo Sousa-Pinto
- MEDCIDS - Department of Community Medicine, Information and Health Decision Sciences, Faculty of Medicine, University of Porto, Porto, Portugal; CINTESIS - Center for Health Technology and Services Research, University of Porto, Porto, Portugal
| | - Cynthia Beeler
- Department of Medical Education, Mayo Clinic, Rochester, FL, USA
| | - Benjamin D Elder
- Department of Neurologic Surgery, Mayo Clinic, Rochester, FL, USA
| | - Ian Buchanan
- Department of Neurologic Surgery, Mayo Clinic, Jacksonville, FL, USA
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Akinduro OO, De Biase G, Goyal A, Meyer JH, Sandhu SJS, Kowalchuk RO, Trifiletti DM, Sheehan J, Merrell KW, Vora SA, Broderick DF, Clarke MJ, Bydon M, McClendon J, Kalani MA, Quiñones-Hinojosa A, Abode-Iyamah K. Focused versus conventional radiotherapy in spinal oncology: is there any difference in fusion rates and pseudoarthrosis? J Neurooncol 2022; 156:329-339. [PMID: 34993721 DOI: 10.1007/s11060-021-03915-3] [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: 10/26/2021] [Accepted: 11/26/2021] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Radiotherapy is considered standard of care for adjuvant peri-operative treatment of many spinal tumors, including those with instrumented fusion. Unfortunately, radiation treatment has been linked to increased risk of pseudoarthrosis. Newer focused radiotherapy strategies with enhanced conformality could offer improved fusion rates for these patients, but this has not been confirmed. METHODS We performed a retrospective analysis of patients at three tertiary care academic institutions with primary and secondary spinal malignancies that underwent resection, instrumented fusion, and peri-operative radiotherapy. Two board certified neuro-radiologists used the Lenke fusion score to grade fusion status at 6 and 12-months after surgery. Secondary outcomes included clinical pseudoarthrosis, wound complications, the effect of radiation timing and radiobiological dose delivered, the use of photons versus protons, tumor type, tumor location, and use of autograft on fusion outcomes. RESULTS After review of 1252 spinal tumor patients, there were 60 patients with at least 6 months follow-up that were included in our analyses. Twenty-five of these patients received focused radiotherapy, 20 patients received conventional radiotherapy, and 15 patients were treated with protons. There was no significant difference between the groups for covariates such as smoking status, obesity, diabetes, intraoperative use of autograft, and use of peri-operative chemotherapy. There was a significantly higher rate of fusion for patients treated with focused radiotherapy compared to those treated with conventional radiotherapy at 6-months (64.0% versus 30.0%, Odds ratio: 4.15, p = 0.036) and 12-months (80.0% versus 42.1%, OR: 5.50, p = 0.022). There was a significantly higher rate of clinical pseudoarthrosis in the conventional radiotherapy cohort compared to patients in the focused radiotherapy cohort (19.1% versus 0%, p = 0.037). There was no difference in fusion outcomes for any of the secondary outcomes except for use of autograft. The use of intra-operative autograft was associated with an improved fusion at 12-months (66.7% versus 37.5%, OR: 3.33, p = 0.043). CONCLUSION Focused radiotherapy may be associated with an improved rate of fusion and clinical pseudoarthrosis when compared to conventional radiation delivery strategies in patients with spinal tumors. Use of autograft at the time of surgery may be associated with improved 12-month fusion rates. Further large-scale prospective and randomized controlled studies are needed to better stratify the effects of radiation delivery modality in these patients.
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Affiliation(s)
| | - Gaetano De Biase
- Department of Neurosurgery, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Anshit Goyal
- Department of Neurosurgery, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Jenna H Meyer
- Department of Neurosurgery, Mayo Clinic, Phoenix, AZ, USA
| | | | | | | | - Jason Sheehan
- Department of Neurosurgery, University of Virginia, Charlottesville, VA, USA
| | | | - Sujay A Vora
- Department of Radiation Oncology, Mayo Clinic, Phoenix, AZ, USA
| | | | | | - Mohamad Bydon
- Department of Neurosurgery, Mayo Clinic, Rochester, MN, USA
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12
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Minimally Invasive Transforaminal Lumbar Interbody Fusion: Cost of a Surgeon's Learning Curve. World Neurosurg 2021; 162:e1-e7. [PMID: 34785362 DOI: 10.1016/j.wneu.2021.11.039] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 11/08/2021] [Accepted: 11/09/2021] [Indexed: 11/21/2022]
Abstract
BACKGROUND Minimally invasive transforaminal interbody fusion has become an increasingly common approach in adult degenerative spine disease but is associated with a steep learning curve. OBJECTIVE To evaluate the impact of the learning experience on mean procedure time and mean cost associated with each procedure. METHODS We studied the first one-hundred consecutive minimally invasive transforaminal interbody fusion procedures of a single surgeon. We performed multivariable linear regression models, modelling operating time and costs in function of the procedure order adjusted for patients' age, gender and number of surgical levels. The number of procedures necessary to attain proficiency was determined through a k-means cluster analysis. Finally, the total excess operative time and total excess cost until obtaining proficiency was evaluated. RESULTS Procedure order was found to impact procedure time and mean costs, with each successive case being associated with progressively less procedure time and cost. On average, each successive case was associated with a reduction in procedure time of 0.97 minutes (95% CI=0.54-1.40; p<0.001) and an average adjusted reduction in overall costs of $82.75 (95% CI=$35.93-129.57; p<0.001). An estimated 58 procedures were needed to attain proficiency, translating into an excess procedure time of 2604.2 minutes (average of 45 minutes per case), overall costs associated with the learning experience of $226,563.8 (average of $3974.80 per case), and excess surgical cost of $125,836.6 (average of $2207.66 per case). CONCLUSION Successive cases were associated with progressively less procedure time and mean overall and surgical costs, until a proficiency threshold was attained.
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Akinduro OO, Suarez-Meade P, Garcia D, Brown DA, Sarabia-Estrada R, Attia S, Gokaslan ZL, Quiñones-Hinojosa A. Targeted Therapy for Chordoma: Key Molecular Signaling Pathways and the Role of Multimodal Therapy. Target Oncol 2021; 16:325-337. [PMID: 33893940 DOI: 10.1007/s11523-021-00814-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/02/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND Chordoma is a rare but devastating tumor that arises in the cranial skull base or spine. There are currently no US Food and Drug Administration-approved targeted therapies for chordoma, and little understanding of whether using more than one therapy has benefit over monotherapy. OBJECTIVE The objective of this study was to systematically review the current status of clinical trials completed for patients with chordoma to determine if multimodal therapy offers a benefit in progression-free survival over monomodal therapy. METHODS We performed a systematic review of the literature according to Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines to review the available clinical trials of targeted therapy for chordoma. We compiled the clinical data to determine if there is a benefit of multimodal therapy over monotherapy. RESULTS Our search resulted in 11 clinical trials including 270 patients with advanced chordoma who were treated with targeted therapies. The most commonly employed targeted therapies acted within the following pathways: platelet-derived growth factor receptor (187 patients), vascular endothelial growth factor (66 patients), and mammalian target of rapamycin (43 patients). Reported progression-free survival for included studies ranged from 2.5 to 58 months, with the longest progression-free survival in a trial that included a platelet-derived growth factor receptor inhibitor, nilotinib, and concurrent radiotherapy (58.2 months). There was a higher range of progression-free survival for trials treating patients with multimodal therapy (10.2-14 months vs 2.5-9.2 months, except for a monotherapy trial published in 2020 with a progression-free survival of 18 months), and those published in 2018 or later (14-58.2 months vs 2.5-10.2 months). Only 23% of patients with chordoma in published clinical trials have been treated with multimodal therapy. CONCLUSIONS Progression-free survival may be enhanced by the use of targeted therapy with concurrent radiotherapy, use of multimodal therapy, and use of newer targeted therapy. Future clinical trials should consider use of concurrent radiotherapy and multimodal therapy for patients with advanced chordoma.
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Affiliation(s)
- Oluwaseun O Akinduro
- Brain Tumor Stem Cell Laboratory, Department of Neurologic Surgery, Mayo Clinic, 4500 San Pablo Rd. S, Jacksonville, FL, 32224, USA
| | - Paola Suarez-Meade
- Brain Tumor Stem Cell Laboratory, Department of Neurologic Surgery, Mayo Clinic, 4500 San Pablo Rd. S, Jacksonville, FL, 32224, USA
| | - Diogo Garcia
- Brain Tumor Stem Cell Laboratory, Department of Neurologic Surgery, Mayo Clinic, 4500 San Pablo Rd. S, Jacksonville, FL, 32224, USA
| | | | - Rachel Sarabia-Estrada
- Brain Tumor Stem Cell Laboratory, Department of Neurologic Surgery, Mayo Clinic, 4500 San Pablo Rd. S, Jacksonville, FL, 32224, USA
| | - Steven Attia
- Department of Hematology and Oncology, Mayo Clinic, Jacksonville, FL, USA
| | - Ziya L Gokaslan
- Department of Neurosurgery, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Alfredo Quiñones-Hinojosa
- Brain Tumor Stem Cell Laboratory, Department of Neurologic Surgery, Mayo Clinic, 4500 San Pablo Rd. S, Jacksonville, FL, 32224, USA.
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