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Radiofrequency ablation spine

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https://www.readbyqxmd.com/read/27649314/evaluation-of-the-rosa%C3%A2-spine-robot-for-minimally-invasive-surgical-procedures
#1
M Lefranc, J Peltier
The ROSA® robot (Medtech, Montpellier, France) is a new medical device designed to assist the surgeon during minimally invasive spine procedures. The device comprises a patient-side cart (bearing the robotic arm and a workstation) and an optical navigation camera. The ROSA® Spine robot enables accurate pedicle screw placement. Thanks to its robotic arm and navigation abilities, the robot monitors movements of the spine throughout the entire surgical procedure and thus enables accurate, safe arthrodesis for the treatment of degenerative lumbar disc diseases, exactly as planned by the surgeon...
October 2016: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/27389497/mathematical-3d-modelling-and-sensitivity-analysis-of-multipolar-radiofrequency-ablation-in-the-spine
#2
Janine Matschek, Eric Bullinger, Friedrich von Haeseler, Martin Skalej, Rolf Findeisen
Radiofrequency ablation is a valuable tool in the treatment of many diseases, especially cancer. However, controlled heating up to apoptosis of the desired target tissue in complex situations, for example close to the spinal cord, is challenging and requires experienced interventionalists. For such challenging situations a mathematical description of radiofrequency ablation in the spine can shade light on the often complex interactions between the involved tissue and allows to understand, improve and optimise the outcome of the medical therapy...
July 4, 2016: Mathematical Biosciences
https://www.readbyqxmd.com/read/27375396/novel-use-of-epidural-catheter-air-injection-for-neuroprotection-during-radiofrequency-ablation-of-spinal-osteoid-osteoma
#3
J R Doctor, S L Solanki, V P Patil, J V Divatia
Osteoid osteoma (OO) is a benign bone tumor, with a male-female ratio of approximately 2:1 and mainly affecting long bones. Ten percent of the lesions occur in the spine, mostly within the posterior elements. Treatment options for OO include surgical excision and percutaneous imaging-guided radiofrequency ablation (RFA). Lesions within the spine have an inherent risk of thermal damage to the vital structure because of proximity to the neural elements. We report a novel use of the epidural catheter for air injection for the neuroprotection of nerves close to the OO of the spine...
July 2016: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/27351162/radiofrequency-ablation-temperature-distribution-in-adjacent-tissues
#4
R Bornemann, S F Grötz, P H Pennekamp, K E Wilhelm, K Sander, D C Wirtz, R Pflugmacher
PURPOSE: This clinical study investigates the use of a radiofrequency ablation system specifically developed for the ablation of spinal metastases. The investigation examines possible temperature-associated risks for the adjacent tissues. MATERIAL AND METHODS: A tumour model was simulated for 8 lumbar and 8 thoracic vertebrae of a human cadaveric spine. The tumour mass was ablated with the SpineSTAR electrode (SpineSTAR, DFINE Inc., CA), which has been specifically developed for the ablation of spinal metastases...
June 2016: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/27343124/multicenter-prospective-clinical-series-evaluating-radiofrequency-ablation-in-the-treatment-of-painful-spine-metastases
#5
Sandeep Bagla, Dawood Sayed, John Smirniotopoulos, Jayson Brower, J Neal Rutledge, Bradley Dick, James Carlisle, Ilya Lekht, Bassem Georgy
BACKGROUND: Radiofrequency ablation (RFA) of vertebral body metastases (VBM) has been reported as safe and effective in retrospective studies. This single-arm prospective multicenter clinical study evaluates RFA in the treatment of painful VBM. METHODS: Fifty patients with VBM were prospectively enrolled during a 13-month period at eight US centers under an IRB-approved study. Percutaneous RFA was performed under imaging guidance with cement augmentation at the discretion of the operator...
September 2016: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/27188296/hepatic-resection-for-metastatic-neuroendocrine-cancer-in-patients-with-bone-metastases
#6
Kristopher P Croome, Justin M Burns, Florencia G Que, David M Nagorney
BACKGROUND: Hepatic resection (HR) of metastatic neuroendocrine cancer has been associated with prolonged survival and durable symptom control for selected patients with metastatic neuroendocrine tumor (NET). The present study investigates the outcomes of this operative approach in selected patients with known bone metastases. METHODS: All patients undergoing HR at Mayo Clinic Rochester and Mayo Clinic Florida for metastatic NET between January 1989 and August 2015 were identified, and were divided into two groups: those undergoing HR with a known diagnosis of bone metastases (HRmNET/LB) and those who had metastatic disease confined to the liver (HRmNET/L)...
October 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27163299/temperature-distribution-during-radiofrequency-ablation-of-spinal-metastases-in-a-human-cadaver-model-comparison-of-three-electrodes
#7
Rahel Bornemann, Robert Pflugmacher, Sönke P Frey, Philip P Roessler, Yorck Rommelspacher, Kai E Wilhelm, Kirsten Sander, Dieter C Wirtz, Simon F Grötz
BACKGROUND: Radiofrequency ablation (RFA) temperatures reaching 45°C in adjacent tissues are cytotoxic to the spinal cord, nerves and surrounding tissues. OBJECTIVE: This study compares different RFA electrodes with regard to the temperature distribution during ablation of spinal metastases. METHODS: In vitro experimental study in isolated lumbar vertebrae of a human cadaveric spine. The temperature distribution of RFA electrodes was measured during ablation in human cadaveric lumbar vertebrae containing a simulated vertebral body lesion...
September 14, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27019908/-therapy-progress-of-spinal-cord-compression-by-metastatic-spinal-tumor
#8
REVIEW
Yao-sheng Liu, Qi-zhen He, Shu-bin Liu, Wei-gang Jiang, Ming-xing Lei
Metastatic epidural compression of the spinal cord is a significant source of morbidity in patients with systemic cancer. With improvment of oncotheray, survival period in the patients is improving and metastatic cord compression is en- countered increasingly often. Surgical management performed for early circumferential decompression for the spinal cord com- pression with spine instability, and spine reconstruction performed. Patients with radiosensitive tumours without spine instabili- ty, radiotherapy is an effective therapy...
January 2016: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/27008289/radiofrequency-neurolysis-for-lumbar-pain-using-a-variation-of-the-original-technique
#9
Jorge F Ramirez Leon, Jose G Rugeles Ortiz, Enrique Osorio Fonseca, Carolina Ramirez Martinez, Gabriel Oswaldo Alonso Cuellar
BACKGROUND: Zygapophysial joint arthrosis is a pathology related with axial lumbar pain. The most accepted treatment, after failure of medical management, is the thermal denervation of the medial branch. Nonetheless, the placement of the heat probe remains a challenge to surgeons, even when using the fluoroscope. Using a variation of Shealy's and Bogduk's original techniques, which includes ablation of the medial branch and the nerves present in the joint capsule, we hypothesize that we can obtain similar outcomes to those found in the literature...
March 2016: Pain Physician
https://www.readbyqxmd.com/read/26911878/cement-leakage-and-complication-of-liposarcoma-spinal-metastasis-during-vertebral-augmentation-procedure-a-case-report
#10
Aykut Akpinar, Necati Ucler, Cem Seyho Yucetas, Uzay Erdogan, Mehmet Davut Ucar
BACKGROUND: Liposarcoma is a malignant tumor of soft tissue. Myxoid/round cell liposarcoma has a tendency to spread to extrapulmonary sites but the spine is an unusual location even for metastasis. Metastatic bone tumors in the spine are painful. The vertebral body augmentation procedures for treating painful metastatic spinal lesions are minimally invasive and are good alternatives to open surgery. CASE PRESENTATION: A 41-year-old Turkish man was treated with radiofrequency tumor ablation and percutaneous vertebral augmentation for spinal metastasis...
2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/26635286/radiographic-local-control-of-spinal-metastases-with-percutaneous-radiofrequency-ablation-and-vertebral-augmentation
#11
A N Wallace, A Tomasian, D Vaswani, R Vyhmeister, R O Chang, J W Jennings
BACKGROUND AND PURPOSE: Combination radiofrequency ablation and vertebral augmentation is an emerging minimally invasive therapy for patients with metastatic spine disease who have not responded to or have contraindications to radiation therapy. The purpose of this study was to evaluate the rate of radiographic local control of spinal metastases treated with combination radiofrequency ablation and vertebral augmentation. MATERIALS AND METHODS: We retrospectively reviewed our tumor ablation database for all patients who underwent radiofrequency ablation and vertebral augmentation of spinal metastases between April 2012 and July 2014...
April 2016: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/26606009/combined-ablation-and-radiation-therapy-of-spinal-metastases-a-novel-multimodality-treatment-approach
#12
Taylor J Greenwood, Adam Wallace, Michael V Friedman, Travis J Hillen, Clifford G Robinson, Jack W Jennings
BACKGROUND: Radiation therapy (RT) is the current gold standard for palliation of painful vertebral metastases. However, other percutaneous modalities such as radiofrequency ablation (RFA), cryoablation, and vertebral augmentation have also been shown to be effective in alleviating symptoms. Combined RT and ablation may be more effective than either therapy alone in palliating painful metastatic disease to the spine. OBJECTIVE: To evaluate the safety and efficacy of combined ablation, either RFA or cryoablation, and RT in the treatment of spinal metastases...
November 2015: Pain Physician
https://www.readbyqxmd.com/read/26604113/treatment-of-osteoid-osteomas-using-a-navigational-bipolar-radiofrequency-ablation-system
#13
Adam N Wallace, Anderanik Tomasian, Randy O Chang, Jack W Jennings
BACKGROUND: Percutaneous CT-guided radiofrequency ablation is a safe and effective minimally invasive treatment for osteoid osteomas. This technical case series describes the use of a recently introduced ablation system with a probe that can be curved in multiple directions, embedded thermocouples for real-time monitoring of the ablation volume, and a bipolar design that obviates the need for a grounding pad. METHODS: Medical records of all patients who underwent radiofrequency ablation of an osteoid osteoma with the STAR Tumor Ablation System (DFINE; San Jose, CA) were reviewed...
May 2016: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/26334438/-interventions-on-facet-joints-techniques-of-facet-joint-injection-medial-branch-block-and-radiofrequency-ablation
#14
REVIEW
J Artner, S Klessinger
Fluoroscopy-guided interventions on facet joints have been used for decades for the symptomatic management of pain in spinal disorders. A large number of imaging techniques are used to achieve a precise and safe needle placement in interventional procedures. Pulsed fluoroscopy is one of the most widely used and well-accepted tools for these procedures. This article presents a technical overview of commonly used fluoroscopy-guided interventions on the facet joints of the cervical and lumbar spine, such as facet joint injection, blockade of the medial nerve branches and radiofrequency ablation...
October 2015: Der Radiologe
https://www.readbyqxmd.com/read/26316914/stereotactic-body-radiotherapy-for-the-treatment-of-medically-inoperable-primary-renal-cell-carcinoma-current-evidence-and-future-directions
#15
REVIEW
Anand Swaminath, William Chu
The incidence of renal cell carcinoma (RCC) is steadily rising due to an aging population and more frequent imaging of the abdomen for other medical conditions. While surgery remains the standard of care treatment for localized disease, many patients are unfit due to their advanced age and medical comorbidities. In these patients, an active surveillance strategy or ablative therapies, including radiofrequency/microwave ablation or cryotherapy, can be offered. Such options have limitations particularly with fast growing, or larger tumors...
July 2015: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/26206290/comparison-of-the-effect-of-two-different-bone-targeted-radiofrequency-ablation-rfa-systems-alone-and-in-combination-with-percutaneous-vertebroplasty-pvp-on-the-biomechanical-stability-of-the-metastatic-spine
#16
Padina S Pezeshki, Sean Davidson, Kieran Murphy, Claire McCann, Elzbieta Slodkowska, Michael Sherar, Albert Jm Yee, Cari M Whyne
INTRODUCTION: Radiofrequency ablation (RFA) and percutaneous vertebroplasty (PVP) are used independently and in combination to treat metastatically involved vertebrae with the aim of relieving pain, reducing tumour burden and providing bony mechanical stabilization. PURPOSE: The aim of this work was to characterize the effect of two bone-targeted RFA devices, alone and in combination with PVP, to improve strength and mechanical stability in vertebrae with osteolytic metastatic disease...
December 2016: European Spine Journal
https://www.readbyqxmd.com/read/26050823/computed-tomography-guided-radiofrequency-ablation-is-a-safe-and-effective-treatment-of-osteoid-osteoma-located-outside-the-spine
#17
Morten Knudsen, Andreas Riishede, Arne Lücke, John Gelineck, Johnny Keller, Thomas Baad-Hansen
INTRODUCTION: The aim of this study was to evaluate the long-term clinical outcome after computed tomography (CT)-guided radiofrequency ablation (RFA) in patients diagnosed with osteoid osteoma (OO) located in the upper and lower extremities. METHODS: The study population included 52 patients with a typical clinical history and radiologically confirmed OO who received CT-guided RFA treatment from 1998 to February 2014 at Aarhus University Hospital, Denmark. The clinical outcome was evaluated based on patient-reported outcome measures and medical record review...
May 2015: Danish Medical Journal
https://www.readbyqxmd.com/read/25819585/helical-coil-electrode-radiofrequency-ablation-designed-for-application-in-osteolytic-vertebral-tumors-initial-evaluation-in-a-porcine-model
#18
Padina S Pezeshki, Sean R Davidson, Margarete K Akens, Kieran Murphy, Claire McCann, Michael Sherar, Cari M Whyne, Albert J M Yee
BACKGROUND CONTEXT: Radiofrequency ablation (RFA) is emerging as a complementary treatment for vertebral metastases. Traditional RFA induces frictional heating leading to local tissue necrosis but often yields small, incomplete, and inhomogeneous zones of ablation in bone. We have developed a new bone-specific RFA electrode that uses a nontraditional frequency (27.12 MHz) and geometry (helical), exploiting a magnetic field and an electric field to generate larger and more comprehensive treatment zones...
August 1, 2015: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/25794199/systematic-review-of-radiofrequency-ablation-and-pulsed-radiofrequency-for-management-of-cervicogenic-headache
#19
REVIEW
Vittal R Nagar, Pravardhan Birthi, Jay S Grider, Amit Asopa
BACKGROUND: Cervicogenic headache is a secondary headache that has a source in the upper cervical spine. There is a small but growing body of evidence to establish effectiveness of radiofrequency (RF) neurotomy, and the pulsed RF (PRF) procedure for management of cervicogenic headache. OBJECTIVE: To investigate the clinical utility of RF neurotomy, and PRF ablation for the management of cervicogenic headache. STUDY DESIGN: Systematic review...
March 2015: Pain Physician
https://www.readbyqxmd.com/read/25785840/radiofrequency-ablation-near-the-bone-muscle-interface-alters-soft-tissue-lesion-dimensions
#20
Maxim S Eckmann, Marte A Martinez, Steven Lindauer, Asif Khan, Somayaji Ramamurthy
BACKGROUND AND OBJECTIVES: Radiofrequency (RF) lesions are safe and effective in the treatment of spine pain; however, models developed to study factors affecting lesion dimensions have been performed in homogeneous media that may not accurately simulate human anatomy and electrophysiology. We present a novel ex vivo porcine model for performing RF lesion studies and report the influence of bone on projection of RF ablation lesions into soft tissue. METHODS: Radiofrequency lesions were performed in porcine rib specimens using monopolar 18-gauge, 10-mm straight active tip cannula, with a lesion temperature of 80°C for 150 seconds...
May 2015: Regional Anesthesia and Pain Medicine
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