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Kow CY, Castle-Kirszbaum M, Kam JK, Goldschlager T. Advances in Surgery for Metastatic Disease of the Spine: An Update for Oncologists. Global Spine J 2024:21925682231155847. [PMID: 39069655 DOI: 10.1177/21925682231155847] [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] [Indexed: 07/30/2024] Open
Abstract
STUDY DESIGN Narrative review. OBJECTIVE Metastatic spine disease is an increasingly common clinical challenge that requires individualised multidisciplinary care from spine surgeons and oncologists. In this article, the authors describe the recent surgical advances in patients presenting with spinal metastases. METHODS We present an overview of the presentation, assessment, and management of spinal metastases from the perspective of the spine surgeon, highlighting advances in surgical technology and techniques, to facilitate multidisciplinary care for this complex patient group. Neither institutional review board approval nor patient consent was needed for this review. RESULTS Advances in radiotherapy delivery and systemic therapy (including immunotherapy and targeted therapy) have refined operative indications for decompression of neural structures and spinal stabilisation, while advances in surgical technology and technique enable these goals to be achieved with reduced morbidity. Formulating individualised management strategies that optimise outcome, while meeting patient goals and expectations, requires a comprehensive understanding of the factors important to patient management. CONCLUSION Spinal metastases require prompt diagnosis and expert management by a multidisciplinary team. Improvements in systemic, radiation, and surgical therapies have broadened operative indications and increased operative candidacy, and future advances are likely to continue this trend.
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Affiliation(s)
- Chien Yew Kow
- Department of Neurosurgery, Auckland City Hospital, Auckland, New Zealand
| | - Mendel Castle-Kirszbaum
- Department of Neurosurgery, Monash Health, Melbourne, AU-VIC, Australia
- Department of Surgery, Monash University, Melbourne, AU-VIC, Australia
| | - Jeremy Kt Kam
- Department of Neurosurgery, Monash Health, Melbourne, AU-VIC, Australia
- Department of Surgery, Monash University, Melbourne, AU-VIC, Australia
| | - Tony Goldschlager
- Department of Neurosurgery, Monash Health, Melbourne, AU-VIC, Australia
- Department of Surgery, Monash University, Melbourne, AU-VIC, Australia
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Rispoli R, Giorgiutti F, Veltri C, Copetti E, Imbruce’ P, Iacopino G, Cappelletto B. The Efficacy of a Multidisciplinary Approach and Diagnostic-Therapeutic Algorithm for Vertebral Metastases with Spinal Cord Compression. MEDICINA (KAUNAS, LITHUANIA) 2024; 60:1020. [PMID: 39064449 PMCID: PMC11279003 DOI: 10.3390/medicina60071020] [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: 04/22/2024] [Revised: 06/01/2024] [Accepted: 06/13/2024] [Indexed: 07/28/2024]
Abstract
Background and Objectives: Metastatic spinal cord compression represents a substantial risk to patients, given its potential for spinal cord and/or nerve root compression, which can result in severe morbidity. This study aims to evaluate the effectiveness of a diagnostic-therapeutic algorithm developed at our hospital to mitigate the devastating consequences of spinal cord compression in patients with vertebral metastases. Materials and Methods: The algorithm, implemented in our practice in January 2022, is based on collective clinical experience and involves collaboration between emergency room physicians, oncologists, spine surgeons, neuroradiologists, radiation oncologists, and oncologists. To minimize potential confounding effects from the COVID-19 pandemic, data from the years 2019 and 2021 (pre-protocol) were collected and compared with data from the years 2022 and 2023 (post-protocol), excluding the year 2020. Results: From January 2022 to December 2023, 488 oncological patients were assessed, with 45 presenting with urgency due to suspected spinal cord compression. Out of these, 44 patients underwent surgical procedures, with 25 performed in emergency settings and 19 cases in elective settings. Comparatively, in 2019 and 2021, 419 oncological patients were evaluated, with 28 presenting with urgency for suspected spinal cord compression. Of these, 17 underwent surgical procedures, with 10 performed in emergency scenarios and 7 in elective scenarios. Comparing the pre-protocol period (years 2019 and 2021) to the post-protocol period (years 2022 and 2023), intrahospital consultations (commonly patients neurologically compromised) for spine metastasis decreased (105 vs. 82), while outpatient consultations increased remarkably (59 vs. 124). Discussion: Accurate interpretation of symptoms within the context of metastatic involvement is crucial for patients with a history of malignancy, whether presenting in the emergency room or oncology department. Even in the absence of a cancer history, careful interpretation of pain characteristics and clinical signs is crucial for diagnosing vertebral metastasis with incipient or current spinal cord compression. Early surgical or radiation intervention is emphasized as it provides the best chance to prevent deficits or improve neurological status. Preliminary findings suggest a notable increase in both the number of patients diagnosed with suspected spinal cord compression and the proportion undergoing surgical intervention following the implementation of the multidisciplinary protocol. The reduced number of intrahospital consultations (commonly patients neurologically compromised) and the increased number of visits of outpatients with vertebral metastases indicate a heightened awareness of the issue, leading to earlier identification and intervention before neurological worsening necessitating hospitalization. Conclusions: A comprehensive treatment planning approach is essential, and our multidisciplinary algorithm is a valuable tool for optimizing patient outcomes. The protocol shows potential in improving timely management of spinal cord compression in oncological patients. Further analysis of the factors driving these changes is warranted. Limitations: This study has limitations, including potential biases from the retrospective nature of data collection and the exclusion of 2020 data due to COVID-19 impact. To enhance the robustness of our results, long-term studies are required. Moreover, the single-center study design may limit the validity of the findings. Further multicenter studies would be beneficial for validating our results and exploring underlying factors in detail.
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Affiliation(s)
- Rossella Rispoli
- Spine and Spinal Cord Surgery Unit, ASUFC, University Hospital Santa Maria della Misericordia of Udine, 33100 Udine, Italy; (F.G.); (C.V.); (P.I.); (B.C.)
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Scaramuzzo L, Perna A, Velluto C, Borruto MI, Gorgoglione FL, Proietti L. Rethinking Strategies for Multi-Metastatic Patients: A Comprehensive Retrospective Analysis on Open Posterior Fusion Versus Percutaneous Osteosynthesis in the Treatment of Vertebral Metastases. J Clin Med 2024; 13:3343. [PMID: 38893054 PMCID: PMC11173164 DOI: 10.3390/jcm13113343] [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: 03/15/2024] [Revised: 05/16/2024] [Accepted: 06/04/2024] [Indexed: 06/21/2024] Open
Abstract
Background: Managing vertebral metastases (VM) is still challenging in oncology, necessitating the use of effective surgical strategies to preserve patient quality of life (QoL). Traditional open posterior fusion (OPF) and percutaneous osteosynthesis (PO) are well-documented approaches, but their comparative efficacy remains debated. Methods: This retrospective study compared short-term outcomes (6-12 months) between OPF and PO in 78 cancer patients with spinal metastases. This comprehensive evaluation included functional, clinical, and radiographic parameters. Statistical analysis utilized PRISM software (version 10), with significance set at p < 0.05. Results: PO demonstrated advantages over OPF, including shorter surgical durations, reduced blood loss, and hospital stay, along with lower perioperative complication rates. Patient quality of life and functional outcomes favored PO, particularly at the 6-month mark. The mortality rates at one year were significantly lower in the PO group. Conclusions: Minimally invasive techniques offer promising benefits in VM management, optimizing patient outcomes and QoL. Despite limitations, this study advocates for the adoption of minimally invasive approaches to enhance the care of multi-metastatic patients with symptomatic VM.
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Affiliation(s)
- Laura Scaramuzzo
- Department of Aging, Orthopaedic and Rheumatological Sciences, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy; (L.S.); (M.I.B.); (L.P.)
| | - Andrea Perna
- Department of Orthopaedics and Traumatology, Fondazione Casa Sollievo della Sofferenza IRCCS, 71013 San Giovanni Rotondo, Italy; (A.P.); (F.L.G.)
| | - Calogero Velluto
- Department of Aging, Orthopaedic and Rheumatological Sciences, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy; (L.S.); (M.I.B.); (L.P.)
| | - Maria Ilaria Borruto
- Department of Aging, Orthopaedic and Rheumatological Sciences, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy; (L.S.); (M.I.B.); (L.P.)
| | - Franco Lucio Gorgoglione
- Department of Orthopaedics and Traumatology, Fondazione Casa Sollievo della Sofferenza IRCCS, 71013 San Giovanni Rotondo, Italy; (A.P.); (F.L.G.)
| | - Luca Proietti
- Department of Aging, Orthopaedic and Rheumatological Sciences, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy; (L.S.); (M.I.B.); (L.P.)
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Kumar N, Lee EXY, Hui SJ, Kumar L, Jonathan Tan JH, Ashokka B. Does Patient Blood Management Affect Outcomes in Metastatic Spine Tumour Surgery? A Review of Current Concepts. Global Spine J 2024:21925682231167096. [PMID: 38453667 DOI: 10.1177/21925682231167096] [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] [Indexed: 03/09/2024] Open
Abstract
STUDY DESIGN Narrative review. OBJECTIVE The spine is the most common site of metastases, associated with decreased quality of life. Increase in metastatic spine tumour surgery (MSTS) has caused us to focus on the management of blood, as blood loss is a significant morbidity in these patients. However, blood transfusion is also not without its own risks, and hence this led to blood conservation strategies and implementation of a concept of patient blood management (PBM) in clinical practise focusing on these patients. METHODS A narrative review was conducted and all studies that were related to blood management in metastatic spine disease as well as PBM surrounding this condition were included. RESULTS A total of 64 studies were included in this review. We discussed a new concept of patient blood management in patients undergoing MSTS, with stratification to pre-operative and intra-operative factors, as well as anaesthesia and surgical considerations. The studies show that PBM and reduction in blood transfusion allows for reduced readmission rates, lower risks associated with blood transfusion, and lower morbidity for patients undergoing MSTS. CONCLUSION Through this review, we highlight various pre-operative and intra-operative methods in the surgical and anaesthesia domains that can help with PBM. It is an important concept with the significant amount of blood loss expected from MSTS. LEVEL OF EVIDENCE Not applicable.
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Affiliation(s)
- Naresh Kumar
- University Spine Centre, Department of Orthopaedic Surgery, National University Health System, Singapore
| | | | - Si Jian Hui
- University Spine Centre, Department of Orthopaedic Surgery, National University Health System, Singapore
| | - Laranya Kumar
- Royal College of Surgeons of Ireland, Dublin, Ireland
| | - Jiong Hao Jonathan Tan
- University Spine Centre, Department of Orthopaedic Surgery, National University Health System, Singapore
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Perna A, Franchini A, Gorgoglione FL, Barletta F, Moretti B, Piazzolla A, Bocchi MB, Velluto C, Tamburrelli F, Proietti L. Short-segment percutaneous fusion versus open posterior fusion with screw in the fractured vertebra for thoracolumbar junction burst vertebral fracture treatment. J Neurosci Rural Pract 2024; 15:34-41. [PMID: 38476412 PMCID: PMC10927060 DOI: 10.25259/jnrp_370_2023] [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: 07/07/2023] [Accepted: 08/11/2023] [Indexed: 03/14/2024] Open
Abstract
Objectives The treatment options for thoracolumbar junction burst fractures remain a topic of controversy. Short-segment percutaneous fixation (SSPF) and short-segment open fixation including the fractured level (SSOFIFL) are both viable procedures for managing these fractures. At present, there is a lack of evidence in the literature demonstrating the absolute superiority of one treatment over the other. This study aimed to compare these two surgical strategies with a focus on radiological and clinical outcomes. Materials and Methods This retrospective case-control multicenter analysis involved patients with A3 and A4 vertebral fractures at the thoracolumbar junction (T11-L2) who underwent surgical treatment with either SSPF or SSOFIFL in the participating centers. Clinical outcomes were measured using the Oswestry Disability Index and visual analogue scale (VAS) both pre- and postoperatively. Radiological outcomes included kyphotic deformity (KD), anterior vertebral body height (AVBH), segmental kyphosis, and sagittal alignment parameters. Results A total of 156 patients were enrolled in the study, with 81 patients in Group A (SSPF) and 75 patients in Group B (SSOFIFL). Group B demonstrated better correction of KD (Group B: 3.4 ± 2.7° vs. Group A: 8.3 ± 3.2°, P = 0.003), AVBH, and sagittal alignment. A minor loss of correction was observed in Group B with respect to Group A (0.9 ± 1.7° vs 4.3° ± 2.1°, P = 0.043). Blood losses were lower in Group A (78 ± 15 min vs. 118 ± 23 min, P = 0.021) as well as during surgery (121.3 ± 34 mL vs. 210.2 ± 52 mL, P = 0.031), but the post-operative hemoglobin levels were comparable between the two groups. Conclusion SSOFIFL appears to show a major amount of KD correction and prevent loss of correction. This technique should be the preferred choice whenever possible. However, SSPF can be considered a valid alternative for damage control in polytrauma patients and fractures with low KD.
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Affiliation(s)
- Andrea Perna
- Department of Orthopedics and Traumatology, Fondazione Casa Sollievo della Sofferenza IRCCS, San Giovanni Rotondo, Italy
| | - Andrea Franchini
- Department of Basic Medical Science, Neuroscience and Sensory Organs, University of Bari “Aldo Moro,”Bari, Italy
| | - Franco Lucio Gorgoglione
- Department of Orthopedics and Traumatology, Fondazione Casa Sollievo della Sofferenza IRCCS, San Giovanni Rotondo, Italy
| | - Felice Barletta
- Department of Orthopedics and Traumatology, Fondazione Casa Sollievo della Sofferenza IRCCS, San Giovanni Rotondo, Italy
| | - Biagio Moretti
- Department of Basic Medical Science, Neuroscience and Sensory Organs, University of Bari “Aldo Moro,”Bari, Italy
| | - Andrea Piazzolla
- Department of Basic Medical Science, Neuroscience and Sensory Organs, University of Bari “Aldo Moro,”Bari, Italy
| | - Maria Beatrice Bocchi
- Department of Orthopedics and Traumatology, Fondazione Policlinico Universitario A. Gemelli, IRCCS - Università Cattolica del Sacro Cuore, Roma, Italy
| | - Calogero Velluto
- Department of Orthopedics and Traumatology, Fondazione Policlinico Universitario A. Gemelli, IRCCS - Università Cattolica del Sacro Cuore, Roma, Italy
| | - Francesco Tamburrelli
- Department of Orthopedics and Traumatology, Fondazione Policlinico Universitario A. Gemelli, IRCCS - Università Cattolica del Sacro Cuore, Roma, Italy
| | - Luca Proietti
- Department of Orthopedics and Traumatology, Fondazione Policlinico Universitario A. Gemelli, IRCCS - Università Cattolica del Sacro Cuore, Roma, Italy
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Tsagkaris C, Calek AK, Fasser MR, Spirig JM, Caprara S, Farshad M, Widmer J. Bone density optimized pedicle screw insertion. Front Bioeng Biotechnol 2023; 11:1270522. [PMID: 37954015 PMCID: PMC10639121 DOI: 10.3389/fbioe.2023.1270522] [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: 07/31/2023] [Accepted: 09/19/2023] [Indexed: 11/14/2023] Open
Abstract
Background: Spinal fusion is the most common surgical treatment for the management of degenerative spinal disease. However, complications such as screw loosening lead to painful pseudoarthrosis, and are a common reason for revision. Optimization of screw trajectories to increase implant resistance to mechanical loading is essential. A recent optimization method has shown potential for determining optimal screw position and size based on areas of high bone elastic modulus (E-modulus). Aim: The aim of this biomechanical study was to verify the optimization algorithm for pedicle screw placement in a cadaveric study and to quantify the effect of optimization. The pull-out strength of pedicle screws with an optimized trajectory was compared to that of a traditional trajectory. Methods: Twenty-five lumbar vertebrae were instrumented with pedicle screws (on one side, the pedicle screws were inserted in the traditional way, on the other side, the screws were inserted using an optimized trajectory). Results: An improvement in pull-out strength and pull-out strain energy of the optimized screw trajectory compared to the traditional screw trajectory was only observed for E-modulus values greater than 3500 MPa cm3. For values of 3500 MPa cm3 or less, optimization showed no clear benefit. The median screw length of the optimized pedicle screws was significantly smaller than the median screw length of the traditionally inserted pedicle screws, p < 0.001. Discussion: Optimization of the pedicle screw trajectory is feasible, but seems to apply only to vertebrae with very high E-modulus values. This is likely because screw trajectory optimization resulted in a reduction in screw length and therefore a reduction in the implant-bone interface. Future efforts to predict the optimal pedicle screw trajectory should include screw length as a critical component of potential stability.
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Affiliation(s)
- Christos Tsagkaris
- Department of Orthopedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Anna-Katharina Calek
- Department of Orthopedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
- Spine Biomechanics, Department of Orthopedic Surgery, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Marie-Rosa Fasser
- Spine Biomechanics, Department of Orthopedic Surgery, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
- Institute for Biomechanics, ETH Zurich, Zurich, Switzerland
| | - José Miguel Spirig
- University Spine Center Zurich, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Sebastiano Caprara
- Spine Biomechanics, Department of Orthopedic Surgery, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
- Institute for Biomechanics, ETH Zurich, Zurich, Switzerland
| | - Mazda Farshad
- Department of Orthopedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
- University Spine Center Zurich, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Jonas Widmer
- Spine Biomechanics, Department of Orthopedic Surgery, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
- Institute for Biomechanics, ETH Zurich, Zurich, Switzerland
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Perna A, Velluto C, Smakaj A, Tamburrelli F, Borruto MI, Santagada DA, Gorgoglione FL, Liuzza F, Proietti L. Positioning accuracy and facet joints violation after percutaneous pedicle screws placement with robot-assisted versus fluoroscopy-guided technique: Systematic review and meta-analysis. J Neurosci Rural Pract 2023; 14:406-412. [PMID: 37692811 PMCID: PMC10483214 DOI: 10.25259/jnrp_147_2023] [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: 03/15/2023] [Accepted: 06/19/2023] [Indexed: 09/12/2023] Open
Abstract
Introduction Minimally invasive spine surgery became the gold standard for the treatment of many spinal diseases. Only a few comparative studies were performed regarding the superiority of robotic-assisted (RA) surgery over fluoroscopic guidance (FG) surgery during percutaneous pedicle screws placement. Therefore, the aim of the present study was to conduct a systematic literature review and meta-analysis to evaluate the accuracy and potential advantages of RA compared with FG. Material and Methods This study is a systematic literature review conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines. The review questions were formulated following the PICO scheme. Measured outcomes were presented using Forest plots. Heterogeneity among the included studies was assessed using the χ2 test, and the I2 statistic was utilized to estimate the proportion of total variation among the studies. A value exceeding 50% was considered indicative of substantial heterogeneity. Results Seven studies that met inclusion criteria were finally included in this meta-analysis. These seven studies include: 447 patients, 228 patients (931 screws) treated with robotic guide, and 219 patients (767 pedicle screws) using fluoroscopic guide, with a mean age of 55.2. The percentages of clinically acceptable screws were 94.3% in the robot-assisted group and 89% in the fluoroscopic guided group. The percentages of non-acceptable screws were 5.7% in the robot-assisted group and 11% in the fluoroscopic-guided group. Discussion Significant differences were observed between the two groups in terms of radiographic and clinical outcomes, with the robotic-assisted pedicle screw group exhibiting longer operative times. Robot technology serves as a valuable tool for assisting surgeons in challenging scenarios such as anatomical variants or patients with spinal deformities, ensuring accurate screw placement. Conclusion The accuracy of pedicle screw placement with robotic technology is higher than with FG. In fact, the robotic approach allows significantly lower complication rates, fewer cases of violation of the proximal articular facet, less intraoperative exposure to radiation, even if it requires longer surgical times than the FG technique.
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Affiliation(s)
- Andrea Perna
- Department of Geriatrics and Orthopaedics Sciences, IRCCS Fondazione Policlinico Universitario Agostino Gemelli, Roma, Italy
| | - Calogero Velluto
- Department of Geriatrics and Orthopaedics Sciences, IRCCS Fondazione Policlinico Universitario Agostino Gemelli, Roma, Italy
| | - Amarildo Smakaj
- Department of Geriatrics and Orthopaedics Sciences, IRCCS Fondazione Policlinico Universitario Agostino Gemelli, Roma, Italy
| | - Francesco Tamburrelli
- Department of Geriatrics and Orthopaedics Sciences, IRCCS Fondazione Policlinico Universitario Agostino Gemelli, Roma, Italy
| | - Maria Ilaria Borruto
- Department of Geriatrics and Orthopaedics Sciences, IRCCS Fondazione Policlinico Universitario Agostino Gemelli, Roma, Italy
| | - Domenico Alessandro Santagada
- Department of Geriatrics and Orthopaedics Sciences, IRCCS Fondazione Policlinico Universitario Agostino Gemelli, Roma, Italy
| | - Franco Lucio Gorgoglione
- Department of Orthopedics and Trauma Surgery, Fondazione Casa Sollievo Della Sofferenza IRCCS, San Giovanni Rotondo, Italy
| | - Francesco Liuzza
- Department of Geriatrics and Orthopaedics Sciences, IRCCS Fondazione Policlinico Universitario Agostino Gemelli, Roma, Italy
| | - Luca Proietti
- Department of Geriatrics and Orthopaedics Sciences, IRCCS Fondazione Policlinico Universitario Agostino Gemelli, Roma, Italy
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Schwendner M, Liang R, Butenschön VM, Meyer B, Ille S, Krieg SM. The one-stop-shop approach: Navigating lumbar 360-degree instrumentation in a single position. Front Surg 2023; 10:1152316. [PMID: 37009623 PMCID: PMC10060549 DOI: 10.3389/fsurg.2023.1152316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 02/27/2023] [Indexed: 03/18/2023] Open
Abstract
ObjectiveTreatment strategies of patients suffering from pyogenic spondylodiscitis are a controverse topic. Percutaneous dorsal instrumentation followed by surgical debridement and fusion of the infectious vertebral disc spaces is a common approach for surgical treatment. Technical advances enable spinal navigation for dorsal and lateral instrumentation. This report investigates combined navigated dorsal and lateral instrumentation in a single surgery and positioning for lumbar spondylodiscitis in a pilot series.MethodsPatients diagnosed with 1- or 2-level discitis were prospectively enrolled. To enable posterior navigated pedicle screw placement and lateral interbody fusion (LLIF) patients were positioned semi-prone in 45-degree fashion. For spinal referencing, a registration array was attached to the pelvic or spinal process. 3D scans were acquired intraoperatively for registration and implant control.Results27 patients suffering from 1- or 2-level spondylodiscitis with a median ASA of 3 (1–4) and a mean BMI of 27.9 ± 4.9 kg/m2 were included. Mean duration of surgery was 146 ± 49 min. Mean blood loss was 367 ± 307 ml. A median of 4 (4–8) pedicle screws were placed for dorsal percutaneous instrumentation with an intraoperative revision rate of 4.0%. LLIF was performed on 31 levels with an intraoperative cage revision rate of 9.7%.ConclusionsNavigated lumbar dorsal and lateral instrumentation in a single operation and positioning is feasible and safe. It enables rapid 360-degree instrumentation in these critically ill patients and potentially reduces overall intraoperative radiation exposure for patient and staff. Compared to purely dorsal approaches it allows for optimal discectomy and fusion while overall incisions and wound size are minimized. Compared to prone LLIF procedures, semi-prone in 45-degree positioning allows for a steep learning curve due to minor changes of familiar anatomy.
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Affiliation(s)
- Maximilian Schwendner
- Department of Neurosurgery, School of Medicine, Technical University of Munich, Klinikum rechts der Isar, Munich, Germany
- TUM Neuroimaging Center, School of Medicine, Technical University of Munich, Klinikum rechts der Isar, Munich, Germany
| | - Raimunde Liang
- Department of Neurosurgery, School of Medicine, Technical University of Munich, Klinikum rechts der Isar, Munich, Germany
| | - Vicki M. Butenschön
- Department of Neurosurgery, School of Medicine, Technical University of Munich, Klinikum rechts der Isar, Munich, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, School of Medicine, Technical University of Munich, Klinikum rechts der Isar, Munich, Germany
| | - Sebastian Ille
- Department of Neurosurgery, School of Medicine, Technical University of Munich, Klinikum rechts der Isar, Munich, Germany
- TUM Neuroimaging Center, School of Medicine, Technical University of Munich, Klinikum rechts der Isar, Munich, Germany
| | - Sandro M. Krieg
- Department of Neurosurgery, School of Medicine, Technical University of Munich, Klinikum rechts der Isar, Munich, Germany
- TUM Neuroimaging Center, School of Medicine, Technical University of Munich, Klinikum rechts der Isar, Munich, Germany
- Correspondence: Sandro M. Krieg
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Morimoto M, Tamaki S, Ogawa T, Fujimoto S, Sugiura K, Takeuchi M, Manabe H, Tezuka F, Yamashita K, Fujitani J, Sairyo K. Advantages of Full-endoscopic Trans-Kambin's Triangle Lumbar Interbody Fusion for Degenerative Spondylolisthesis: Illustrative Cases. NMC Case Rep J 2023; 10:87-92. [PMID: 37131495 PMCID: PMC10149142 DOI: 10.2176/jns-nmc.2022-0287] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 11/28/2022] [Indexed: 05/04/2023] Open
Abstract
Various approaches to lumbar interbody fusion have been described. The usefulness of full-endoscopic trans-Kambin's triangle lumbar interbody fusion has recently been reported. This technique has several advantages in patients with degenerative spondylolisthesis, including the ability to improve symptoms without decompression surgery. Moreover, given that the entire procedure is performed percutaneously, it can be performed without increasing the operation time or surgical invasiveness, even in obese patients. In this article, we discuss these advantages and illustrate them with representative cases.
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Affiliation(s)
- Masatoshi Morimoto
- Department of Orthopedics, Tokushima University, Tokushima, Tokushima, Japan
| | - Shunsuke Tamaki
- Department of Orthopedics, Tokushima University, Tokushima, Tokushima, Japan
| | - Takayuki Ogawa
- Department of Orthopedics, Tokushima University, Tokushima, Tokushima, Japan
| | - Shutaro Fujimoto
- Department of Orthopedics, Tokushima University, Tokushima, Tokushima, Japan
| | - Kosuke Sugiura
- Department of Orthopedics, Tokushima University, Tokushima, Tokushima, Japan
| | - Makoto Takeuchi
- Department of Orthopedics, Tokushima University, Tokushima, Tokushima, Japan
| | - Hiroaki Manabe
- Department of Orthopedics, Tokushima University, Tokushima, Tokushima, Japan
| | - Fumitake Tezuka
- Department of Orthopedics, Tokushima University, Tokushima, Tokushima, Japan
| | - Kazuta Yamashita
- Department of Orthopedics, Tokushima University, Tokushima, Tokushima, Japan
| | - Junzo Fujitani
- Department of Orthopedics, Tokushima University, Tokushima, Tokushima, Japan
| | - Koichi Sairyo
- Department of Orthopedics, Tokushima University, Tokushima, Tokushima, Japan
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Kehayov I, Uchikov P, Davarski A, Kitov B. Letter to the Editor concerning "Evaluation of the relevance of surgery in a retrospective case series of patients who underwent the surgical treatment of a symptomatic spine metastasis from lung cancer" by Zairi F et al. (Eur Spine J [2016]; doi: 10.1007/s00586-016-4397-4). 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; 32:389-390. [PMID: 36436086 DOI: 10.1007/s00586-022-07474-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 06/12/2022] [Accepted: 11/20/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Ivo Kehayov
- Department of Neurosurgery, Faculty of Medicine, Medical University of Plovdiv, 15A Vassil Aprilov Blvd, 4000, Plovdiv, Bulgaria.
| | - Petar Uchikov
- Department of Special Surgery, Faculty of Medicine, Medical University of Plovdiv, Plovdiv, Bulgaria
| | - Atanas Davarski
- Department of Neurosurgery, Faculty of Medicine, Medical University of Plovdiv, 15A Vassil Aprilov Blvd, 4000, Plovdiv, Bulgaria
| | - Borislav Kitov
- Clinic of Neurosurgery, Sv. Georgi University Hospital, Plovdiv, Bulgaria
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11
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Deng C, Feng H, Ma X, Chen C, Mei J, Sun L. Comparing oblique lumbar interbody fusion with lateral screw fixation and percutaneous endoscopic transforaminal discectomy (OLIF-PETD) and minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF) for the treatment of lumbar disc herniation complicated with lumbar instability. BMC Musculoskelet Disord 2022; 23:1104. [PMID: 36529717 PMCID: PMC9761955 DOI: 10.1186/s12891-022-06075-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 12/08/2022] [Indexed: 12/23/2022] Open
Abstract
OBJECTIVE To evaluate the early clinical effect of oblique lumbar interbody fusion with lateral screw fixation and percutaneous endoscopic transforaminal discectomy (OLIF-PETD) in the treatment of lumbar disc herniation with lumbar instability. METHODS A total of 22 patients with lumbar disc herniation and lumbar instability from August 2017 to August 2019 were enrolled in this retrospective study. The general information, perioperative indicators and complications were recorded. The clinical outcomes and radiological outcomes were evaluated before the operation, seven days after the operation, and at the last follow-up. Vertebral fusion and degree of multifidus muscle injury were evaluated at the last follow-up. RESULTS In this study, OLIF + PETD showed shorter incision length compared to the MIS-TLIF (P < 0.001). In the two groups, the clinical outcomes and radiological outcomes were significantly improved compared with the preoperative (P < 0.001). At the seven days after the operation and the last follow-up, the VAS of OLIF + PETD group was lower than that of MIS-TLIF group (P < 0.05). OLIF + PETD could give superior outcome in restoring disc height (P < 0.001), but the fusion segment angle of OLIF + PETD group was larger compared to the MIS-TLIF group seven days after the operation and at the last follow-up (P < 0.05). In addition, the fusion rate was not significantly different between the two groups (P > 0.05), but OLIF + PETD could avoid the multifidus injury (P < 0.001). CONCLUSION Compared to MIS-TLIF, OLIF-PETD can achieve satisfactory decompression effects and fusion rates with less multifidus injury and postoperative low back pain, which may be an alternative choice for the treatment of lumbar disc herniation combined with lumbar instability.
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Affiliation(s)
- Chen Deng
- grid.470966.aDepartment of Orthopedics, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, 030032 Taiyuan, China
| | - Haoyu Feng
- grid.470966.aDepartment of Orthopedics, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, 030032 Taiyuan, China ,grid.412793.a0000 0004 1799 5032Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Xun Ma
- grid.470966.aDepartment of Orthopedics, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, 030032 Taiyuan, China ,grid.412793.a0000 0004 1799 5032Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Chen Chen
- grid.470966.aDepartment of Orthopedics, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, 030032 Taiyuan, China ,grid.412793.a0000 0004 1799 5032Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Jun Mei
- grid.470966.aDepartment of Orthopedics, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, 030032 Taiyuan, China ,grid.412793.a0000 0004 1799 5032Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Lin Sun
- grid.470966.aDepartment of Orthopedics, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, 030032 Taiyuan, China ,grid.412793.a0000 0004 1799 5032Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
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12
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Tai CL, Chen WP, Liu MY, Li YD, Tsai TT, Lai PL, Hsieh MK. Biomechanical comparison of pedicle screw fixation strength among three different screw trajectories using single vertebrae and one-level functional spinal unit. Front Bioeng Biotechnol 2022; 10:1054738. [PMID: 36568298 PMCID: PMC9780459 DOI: 10.3389/fbioe.2022.1054738] [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: 09/27/2022] [Accepted: 11/29/2022] [Indexed: 12/14/2022] Open
Abstract
Three key factors are responsible for the biomechanical performance of pedicle screw fixation: screw mechanical characteristics, bone quality and insertion techniques. To the best of the authors' knowledge, no study has directly compared the biomechanical performance among three trajectories, i.e., the traditional trajectory (TT), modified trajectory (MT) and cortical bone trajectory (CBT), in a porcine model. This study compared the pullout strength and insertion torque of three trajectory methods in single vertebrae, the pullout strength and fixation stiffness including flexion, extension, and lateral bending in a one-level instrumented functional spinal unit (FSU) that mimics the in vivo configuration were clarified. A total of 18 single vertebrae and 18 FSUs were randomly assigned into three screw insertion methods (n = 6 in each trajectory group). In the TT group, the screw converged from its entry point, passed completely inside the pedicle, was parallel to the superior endplate, was located in the superior third of the vertebral body and reached to at least the anterior third of the vertebral body. In the MT group, the convergent angle was similar to that of the TT method but directed caudally to the anterior inferior margin of the vertebral body. The results of insertion torque and pullout strength in single vertebrae were analyzed; in addition, the stiffness and pullout strength in the one-level FSU were also investigated. This study demonstrated that, in single vertebrae, the insertion torque was significantly higher in CBT groups than in TT and MT groups (p < 0.05). The maximal pullout strength was significantly higher in MT groups than in TT and CBT groups (p < 0.05). There was no significant difference in stiffness in the three motions among all groups. The maximal pullout strength in FSUs of MT and CBT groups were significantly higher than the TT groups (p < 0.05). We concluded that either MT or CBT provides better biomechanical performance than TT in single vertebrae or FSUs. The lack of significance of stiffness in FSUs among three methods suggested that MT or CBT could be a reasonable alternative to TT if the traditional trajectory was not feasible.
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Affiliation(s)
- Ching-Lung Tai
- Department of Biomedical Engineering, Chang Gung University, Taoyuan, Taiwan,Department of Orthopaedic Surgery, Spine Section, Bone and Joint Research Center, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Weng-Pin Chen
- Department of Mechanical Engineering, National Taipei University of Technology, Taipei, Taiwan
| | - Mu-Yi Liu
- Department of Biomedical Engineering, Chang Gung University, Taoyuan, Taiwan
| | - Yun-Da Li
- Department of Biomedical Engineering, Chang Gung University, Taoyuan, Taiwan,Department of Orthopaedic Surgery, Spine Section, Bone and Joint Research Center, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Tsung-Ting Tsai
- Department of Orthopaedic Surgery, Spine Section, Bone and Joint Research Center, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Po-Liang Lai
- Department of Orthopaedic Surgery, Spine Section, Bone and Joint Research Center, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Ming-Kai Hsieh
- Department of Orthopaedic Surgery, Spine Section, Bone and Joint Research Center, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taoyuan, Taiwan,*Correspondence: Ming-Kai Hsieh,
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Vitiello R, Matrangolo MR, El Motassime A, Perna A, Cianni L, Maccauro G, Ziranu A. Three-Dimension-Printed Custom-Made Prosthetic Reconstructions in Bone Tumors: A Single Center Experience. Curr Oncol 2022; 29:4566-4577. [PMID: 35877221 PMCID: PMC9322169 DOI: 10.3390/curroncol29070361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 06/19/2022] [Accepted: 06/24/2022] [Indexed: 11/17/2022] Open
Abstract
Bone can be affected by different neoplastic conditions. Limb salvage surgery has become the preferred treatment strategy for most malignant tumors of the extremities. Advanced 3D printing technology has transformed the conventional view of oncological surgery. These types of implants are produced by electron beam melting (EBM) technology by sintering titanium powder in a scaffold shape designed following a project designed from HRCT and MRI. The aim of our study was to evaluate the outcomes and the mid-term follow-up of a population treated with 3D-printed custom-made prosthesis implantation in major oncological bone resection or after failure of primary implants. The primary outcome was the general patient satisfaction one year after surgery. The secondary outcomes were: mortality rate, treatment related complication rate, functional and clinical outcomes (KPS, ADL and IADL). Eight patients were included, five females and two males, with a mean age of 50.3 (±23.72) years at the surgery. The enrolled patients reported a mean satisfaction rate after surgery of 7.38 (±2) where 10 was the maximum value. There were no changes between pre- and postoperative mean KPS (81.43 +/−10.69). Mean preoperative ADL and IADL score was in both cases 4.86 (±1.07), while postoperative was 5 (±0.82), with a delta of 0.13 (p > 0.05). Custom-made prosthesis permits reconstructing bone defects caused by large tumor resection, especially in anatomically complex areas, restoring articular function.
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Affiliation(s)
- Raffaele Vitiello
- Orthopedics & Traumatology Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCSS, 00168 Roma, Italy; (R.V.); (M.R.M.); (A.P.); (L.C.); (G.M.); (A.Z.)
- Orthopedics and Traumatology, Università Cattolica Del Sacro Cuore, 00168 Roma, Italy
| | - Maria Rosaria Matrangolo
- Orthopedics & Traumatology Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCSS, 00168 Roma, Italy; (R.V.); (M.R.M.); (A.P.); (L.C.); (G.M.); (A.Z.)
- Orthopedics and Traumatology, Università Cattolica Del Sacro Cuore, 00168 Roma, Italy
| | - Alessandro El Motassime
- Orthopedics & Traumatology Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCSS, 00168 Roma, Italy; (R.V.); (M.R.M.); (A.P.); (L.C.); (G.M.); (A.Z.)
- Orthopedics and Traumatology, Università Cattolica Del Sacro Cuore, 00168 Roma, Italy
- Correspondence: ; Fax: +39-06-305-1161
| | - Andrea Perna
- Orthopedics & Traumatology Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCSS, 00168 Roma, Italy; (R.V.); (M.R.M.); (A.P.); (L.C.); (G.M.); (A.Z.)
- Orthopedics and Traumatology, Università Cattolica Del Sacro Cuore, 00168 Roma, Italy
| | - Luigi Cianni
- Orthopedics & Traumatology Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCSS, 00168 Roma, Italy; (R.V.); (M.R.M.); (A.P.); (L.C.); (G.M.); (A.Z.)
- Orthopedics and Traumatology, Università Cattolica Del Sacro Cuore, 00168 Roma, Italy
| | - Giulio Maccauro
- Orthopedics & Traumatology Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCSS, 00168 Roma, Italy; (R.V.); (M.R.M.); (A.P.); (L.C.); (G.M.); (A.Z.)
- Orthopedics and Traumatology, Università Cattolica Del Sacro Cuore, 00168 Roma, Italy
| | - Antonio Ziranu
- Orthopedics & Traumatology Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCSS, 00168 Roma, Italy; (R.V.); (M.R.M.); (A.P.); (L.C.); (G.M.); (A.Z.)
- Orthopedics and Traumatology, Università Cattolica Del Sacro Cuore, 00168 Roma, Italy
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Rispoli R, Reverberi C, Targato G, D'Agostini S, Fasola G, Trovò M, Calci M, Fanin R, Cappelletto B. Multidisciplinary Approach to Patients With Metastatic Spinal Cord Compression: A Diagnostic Therapeutic Algorithm to Improve the Neurological Outcome. Front Oncol 2022; 12:902928. [PMID: 35747823 PMCID: PMC9210572 DOI: 10.3389/fonc.2022.902928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 05/16/2022] [Indexed: 11/13/2022] Open
Abstract
Introduction The morbidity associated with metastatic spinal disease is significant because of spinal cord and/or nerve root compression. The purpose of this paper is to define a diagnostic-therapeutic path for patients with vertebral metastases and from this path to build an algorithm to reduce the devastating consequences of spinal cord compression. Materials and Methods The algorithm is born from the experience of a primary care center. A spine surgeon, an emergency room (ER) physician, a neuroradiologist, a radiation oncologist, and an oncologist form the multidisciplinary team. The ER physician or the oncologist intercept the patient with symptoms and signs of a metastatic spinal cord compression. Once the suspicion is confirmed, the following steps of the flow-chart must be triggered. The spine surgeon takes charge of the patient and, on the base of the anamnestic data and neurological examination, defines the appropriate timing for magnetic resonance imaging (MRI) in collaboration with the neuroradiologist. From the MRI outcome, the spine surgeon and the radiation oncologist consult each other to define further therapeutic alternatives. If indicated, surgical treatment should precede radiation therapy. The oncologist gets involved after surgery for systemic therapy. Results In 2021, the Spine and Spinal Cord Surgery department evaluated 257 patients with vertebral metastasis. Fifty-three patients presented with actual or incipient spinal cord compression. Among these, 27 were admitted due to rapid progression of symptoms, neurological deficits and/or spine instability signs. The level was thoracic in 21 cases, lumbar in 4 cases, cervical in 1 case, sacral in 1 case. Fifteen were operated on, 10 of these programmed and 5 in emergency. Discussion Patients with a history of malignancy can present to the ER or to the oncology department with symptoms that must be correctly framed in the context of a metastatic involvement. Even when there is no previous cancer history, the patient's pain characteristics and clinical signs must be interpreted to yield the correct diagnosis of vertebral metastasis with incipient or current spinal cord compression. The awareness of the alert symptoms and the application of an integrated paradigm consent to frame the patients with spinal cord compression, obtaining the benefits of a homogeneous step-by-step diagnostic and therapeutic path. Early surgical or radiation therapy treatment gives the best hope for preventing the worsening, or even improving, the deficits. Conclusions Metastatic spinal cord compression can cause neurological deficits compromising quality of life. Treatment strategies should be planned comprehensively. A multidisciplinary approach and the application of the proposed algorithm is of paramount importance to optimize the outcomes of these patients.
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Affiliation(s)
- Rossella Rispoli
- SOC Chirurgia Vertebro-Midollare, Azienda Sanitaria Universitaria Friuli Centrale, Presidio Ospedaliero Universitario "Santa Maria della Misericordia" di Udine, Udine, Italy
| | - Chiara Reverberi
- SOC Radioterapia, Azienda Sanitaria Universitaria Friuli Centrale, Presidio Ospedaliero Universitario "Santa Maria della Misericordia" di Udine, Udine, Italy
| | - Giada Targato
- SOC Oncologia, Azienda Sanitaria Universitaria Friuli Centrale, Presidio Ospedaliero Universitario "Santa Maria della Misericordia" di Udine, Udine, Italy
| | - Serena D'Agostini
- SOC Neuroradiologia, Azienda Sanitaria Universitaria Friuli Centrale, Presidio Ospedaliero Universitario "Santa Maria della Misericordia" di Udine, Udine, Italy
| | - Gianpiero Fasola
- SOC Oncologia, Azienda Sanitaria Universitaria Friuli Centrale, Presidio Ospedaliero Universitario "Santa Maria della Misericordia" di Udine, Udine, Italy
| | - Marco Trovò
- SOC Radioterapia, Azienda Sanitaria Universitaria Friuli Centrale, Presidio Ospedaliero Universitario "Santa Maria della Misericordia" di Udine, Udine, Italy
| | - Mario Calci
- SOC Pronto Soccorso e Medicina d'Urgenza, Azienda Sanitaria Universitaria Friuli Centrale, Presidio Ospedaliero Universitario "Santa Maria della Misericordia" di Udine, Udine, Italy
| | - Renato Fanin
- Clinica di Ematologia, Azienda Sanitaria Universitaria Friuli Centrale, Presidio Ospedaliero Universitario "Santa Maria della Misericordia" di Udine, Udine, Italy
| | - Barbara Cappelletto
- SOC Chirurgia Vertebro-Midollare, Azienda Sanitaria Universitaria Friuli Centrale, Presidio Ospedaliero Universitario "Santa Maria della Misericordia" di Udine, Udine, Italy
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