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targeted disk decompression

Youngki Hong, Seunghan Yoo, Nack Hwan Kim, Yushin Kim, Sangho Sohn, Sung-Young Yoon, Sangheon Lee
OBJECTIVE:  To assess the procedural efficacy and safety of a Navigable Percutaneous Disk Decompressor (L'DISQ-C) for cervical disk herniation. METHODS:  We performed intradiskal decompression on cervical spine specimens from five human cadavers using the L'DISQ-C under C-arm fluoroscopic guidance. We evaluated our success for positioning the navigable wand tip into the target region and recorded temperature variation at various distances from the wand tip in the cervical nucleus pulposus...
May 2018: Journal of Neurological Surgery. Part A, Central European Neurosurgery
Florian Streitparth, Thula Walter, Uta Wonneberger, Bernhard Schnackenburg, Carsten M Philipp, Federico Collettini, Ulf K M Teichgräber, Bernhard Gebauer
PURPOSE: To assess the feasibility of guidance and thermometry by open 1.0 T magnetic resonance (MR) imaging during percutaneous laser disc decompression (PLDD). METHODS: A fluoroscopic proton-density-weighted turbo spin echo sequence was used for positioning a laser fiber and a reference thermosensor within the targeted spinal disc. In 30 lumbar discs from human donors, nonspoiled gradient-echo (GRE) sequences with different echo times (TE) were compared to monitor thermal laser effects (Nd:YAG laser, 1,064 nm)...
June 2014: Cardiovascular and Interventional Radiology
Christina Jerosch-Herold, Lee Shepstone, Leanne Miller, Peter Chapman
BACKGROUND: Several clinical measures of sensory and motor function are used alongside patient-rated questionnaires to assess outcomes of carpal tunnel decompression. However there is a lack of evidence regarding which clinical tests are most responsive to clinically important change over time. METHODS: In a prospective cohort study 63 patients undergoing carpal tunnel decompression were assessed using standardised clinician-derived and patient reported outcomes before surgery, at 4 and 8 months follow up...
October 27, 2011: BMC Musculoskeletal Disorders
Jason David Eubanks
Cervical radiculopathy is a disease process marked by nerve compression from herniated disk material or arthritic bone spurs. This impingement typically produces neck and radiating arm pain or numbness, sensory deficits, or motor dysfunction in the neck and upper extremities. Magnetic resonance imaging or computed tomographic myelography can confirm neurologic compression. The overall prognosis of persons with cervical radiculopathy is favorable. Most patients improve over time with a focused, nonoperative treatment course...
January 1, 2010: American Family Physician
John William Powell, Rick C Sasso, Newton H Metcalf, Paul A Anderson, John A Hipp
STUDY DESIGN: Kinematic study of a single site in an investigational device exemption trial. OBJECTIVE: Evaluate the center of rotation (COR) after Bryan cervical arthroplasty and compare adjacent segment motion after cervical disk arthroplasty and fusion using validated radiographic analysis. SUMMARY OF BACKGROUND DATA: The goal of cervical arthroplasty is to reestablish spinal kinematics after anterior decompression. Excellent maintenance of range of motion has been reported for a variety of the prostheses; however, the manner the prostheses perform this task is different...
April 2010: Journal of Spinal Disorders & Techniques
Yusuke Ishiwata, Hiroto Takada, Gakuji Gondo, Seiki Osano, Takuo Hashimoto, Isao Yamamoto
BACKGROUND: Magnetic resonance-guided PLDD has been performed for patients with single-level contained focal disk herniation. We investigated the clinical results of our PLDD practice in reference to the site of the needle tip. METHODS: Thirty-two patients (24 male patients and 8 female patients; mean age, 35 years) who presented with low back pain and signs of monoradiculopathy underwent MR-guided PLDD. The final location of the needle tip was plotted on a T(1)-weighted axial plane of the targeted disk...
August 2007: Surgical Neurology
Adiel Barak, Anat Kesler, Daniel Gold, Anat Loewenstein
PURPOSE: Surgical decompression of the vein in central retinal vein occlusion (CRVO) by radial optic neurotomy (RON) was recently proposed as being surgically feasible, safe, and beneficial. The effect of RON on the visual field has not been systematically reported, although possible visual field defects are expected due to iatrogenic cutting of the optic nerve fibers. The authors report the results of visual field testing in patients who underwent RON at the Tel Aviv Medical Center. METHODS: Twelve consecutive patients (8 men, mean age of all patients 68 years) with nonperfused or indeterminate CRVO whose initial visual acuity (VA) was < or =20/400 underwent RON...
May 2006: Retina
Ghassan Skaf, Carmel Bouclaous, Ali Alaraj, Roukoz Chamoun
BACKGROUND: Failed back surgery syndrome (FBSS) is a condition in which there is failure to improve satisfactorily after back surgery. It is characterized by intractable pain and various degrees of functional disability after lumbar spine surgery. It is estimated that this complication occurs in 5% to 10% of patients after spinal surgeries. The major causes of FBSS are fibrosis and adhesions, spinal instability, recurrent herniated disk, and inadequate decompression. The purpose of this study is to report on the postsurgical outcome after a redo spinal surgery...
December 2005: Surgical Neurology
H Gordon Deen, Thomas D Rizzo, Douglas S Fenton
Vertebral axial decompression (VAX-D) is a form of spinal traction that is widely promoted as an effective and safe treatment of degenerated and herniated lumbar intervertebral disks. Information targeted at the general public emphasizes that the treatment is completely risk-free. We describe a patient with a large lumbar disk protrusion who experienced sudden, severe exacerbation of radicular pain during a VAX-D therapy session. Follow-up magnetic resonance imaging of the lumbar region showed marked enlargement of the disk protrusion, and urgent microdiskectomy was required...
December 2003: Mayo Clinic Proceedings
J Harada, M Dohi, K Fukuda, H Nakazaki, T Koyama, T Abe
OBJECTIVE: Percutaneous laser disk decompression (PLDD) is an effective treatment for bulging or protruding disk. The aim of this study was to present a method of PLDD for cervical disk hernia under CT guidance and to evaluate the efficacy and safety of this procedure. MATERIALS AND METHODS: Seven patients with radiculalgia caused by cervical disk hernia were treated overnight by PLDD. A laser fiber was inserted through an 18 G needle into the target disk under CT guidance...
September 2001: Radiation Medicine
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