Percutaneous laser discectomy guided with stereotactic computer‐assisted surgical navigation

Jako, Ronald A. von; Cselik, Zsolt

doi:10.1002/lsm.20728

Cited by 11 publications

(4 citation statements)

References 51 publications

(61 reference statements)

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“…Previous work by the authors evaluated the thermal‐induced changes by 980‐nm laser using standard magnetic resonance (MR) imaging 32. In the present study, we compared the 980‐nm wavelength diode laser effects with those of a 1,470‐nm wavelength diode laser using bovine spine cadavers ex vivo .…”

Section: Introductionmentioning

confidence: 99%

Marital Status and Outcome of Patients Presenting with Acute Coronary Syndrome: An Observational Report

Khafaji

Habib

Asaad

et al. 2012

Clinical Cardiology

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Background & hypothesis:Data on the clinical characteristics and outcome of patients presenting with acute coronary syndrome (ACS) according to their marital status is not clear.Methods:A total of 5334 patients presenting with ACS in 65 hospitals in 6 Middle East countries in the 2nd Gulf Registry of Acute Coronary Events (Gulf RACE‐2) were studied according to their marital status (5024 married, 100 single, and 210 widowed patients).Result:When compared to married patients, widowed patients were older and more likely to be female. Widowed patients were more likely to have diabetes mellitus, hypertension, history of heart failure, and peripheral vascular disease and were less likely to be tobacco users when compared to the other groups. Widowed patients were also more likely to present with atypical symptoms and have advanced Killip class. Widowed patients were more likely to present with non‐ST‐elevation myocardial infarction (NSTEMI) when compared to the other 2 groups. Widowed patients were more likely to have heart failure (P = 0.001), cardiogenic shock (P = 0.001), and major bleeding (P = 0.002) when compared to the other groups. No statistically significant difference was observed in regard to duration of hospital stay, door to needle time in STEMI patients, or cardiac arrhythmias between the various groups. Widowed patients had higher in‐hospital, 30‐day, and 1‐year mortality rates (P = 0.001). Marital status was an independent predictor for in‐hospital mortality.Conclusion:Widowed marital status was associated with worse cardiovascular risk profile, and worse in‐hospital and 1‐year outcome. Future work should be focused on whether the provision of psychosocial support will result in improved outcomes among this high‐risk group. Clin. Cardiol. 2011 DOI: 10.1002/clc.22034Gulf RACE is a Gulf Heart Association (GHA) project and was financially supported by the GHA, Sanofi Aventis, and the College of Medicine Research Center at King Khalid University Hospital, King Saud University, and Riyadh, Saudi Arabia.The authors have no other funding, financial relationships, or conflicts of interest to disclose.

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Section: Introductionmentioning

confidence: 99%

Marital Status and Outcome of Patients Presenting with Acute Coronary Syndrome: An Observational Report

Khafaji

Habib

Asaad

et al. 2012

Clinical Cardiology

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“…Computer-aided fluoroscopic techniques [6, 9, 27, 29, 34] are among the various methodologies devised to increase the accuracy of screw placement; however, widespread adoption has been slow because of the increased set-up and operative times and lack of perceived benefit [3]. Electromagnetic field (EMF) navigation-based systems eliminate cumbersome optical array receivers as well as line-of-sight issues that can interfere with the normal flow of the operative procedure [10, 25].…”

Section: Introductionmentioning

confidence: 99%

Minimally invasive percutaneous transpedicular screw fixation: increased accuracy and reduced radiation exposure by means of a novel electromagnetic navigation system

et al. 2010

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BackgroundMinimally invasive percutaneous pedicle screw instrumentation methods may increase the need for intraoperative fluoroscopy, resulting in excessive radiation exposure for the patient, surgeon, and support staff. Electromagnetic field (EMF)-based navigation may aid more accurate placement of percutaneous pedicle screws while reducing fluoroscopic exposure. We compared the accuracy, time of insertion, and radiation exposure of EMF with traditional fluoroscopic percutaneous pedicle screw placement.Methods Minimally invasive pedicle screw placement in T8 to S1 pedicles of eight fresh-frozen human cadaveric torsos was guided with EMF or standard fluoroscopy. Set-up, insertion, and fluoroscopic times and radiation exposure and accuracy (measured with post-procedural computed tomography) were analyzed in each group.ResultsSixty-two pedicle screws were placed under fluoroscopic guidance and 60 under EMF guidance. Ideal trajectories were achieved more frequently with EMF over all segments (62.7% vs. 40%; p = 0.01). Greatest EMF accuracy was achieved in the lumbar spine, with significant improvements in both ideal trajectory and reduction of pedicle breaches over fluoroscopically guided placement (64.9% vs. 40%, p = 0.03, and 16.2% vs. 42.5%, p = 0.01, respectively). Fluoroscopy time was reduced 77% with the use of EMF (22 s vs. 5 s per level; p < 0.0001) over all spinal segments. Radiation exposure at the hand and body was reduced 60% (p = 0.058) and 32% (p = 0.073), respectively. Time for insertion did not vary between the two techniques.ConclusionsMinimally invasive pedicle screw placement with the aid of EMF image guidance reduces fluoroscopy time and increases placement accuracy when compared with traditional fluoroscopic guidance while adding no additional time to the procedure.

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“…Sequeiros et al [24] reported on the use of MRI guidance to place a guidance needle to ablate osteoid osteomas. Von Jako and Cselik [25] described the use of a stereotactic computer-assisted surgical 16. Necrosis of the cranial portion of the L5 vertebra has been caused by the side-firing fiber system of the potassium triphosphide (KTP) laser.…”

Section: Radiologic Guidance For Needle Placementmentioning

confidence: 99%

Twenty-three years of percutaneous laser disc decompression (PLDD) – State of the art and future prospects

Choy

Tassi

Hellinger³

et al. 2009

Medical Laser Application

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Percutaneous laser discectomy guided with stereotactic computer‐assisted surgical navigation

Abstract: This preclinical study demonstrates the clinical utility of a 980-nm diode laser delivered through a fiber-optic waveguide trocar in which precise insertion was enabled by the use of surgical navigation. This in turn decreases the exposure to ionizing radiation during the procedure.

Cited by 11 publications

References 51 publications

Marital Status and Outcome of Patients Presenting with Acute Coronary Syndrome: An Observational Report

Marital Status and Outcome of Patients Presenting with Acute Coronary Syndrome: An Observational Report

Minimally invasive percutaneous transpedicular screw fixation: increased accuracy and reduced radiation exposure by means of a novel electromagnetic navigation system

Twenty-three years of percutaneous laser disc decompression (PLDD) – State of the art and future prospects

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