Search results for "lumbar"

Lumbar Disc Degeneration and Sagittal Flexibility

1996

It is uncertain whether intervertebral disc degeneration is associated with reduced or increased flexibility, although lumbar flexibility is known to reduce with advancing age. This cross-sectional study of 214 middle-aged men attempted to determine the influence on lumbar sagittal flexibility from intervertebral disc degeneration parameters measured from magnetic resonance images (disc height, signal intensity, bulging, osteophytes). Multivariate analyses showed that a reduced extent of lumbar flexibility could be accounted for by the combined effect of decreasing disc height together with increasing age, weight, and back pain frequency. Although it remains possible that single degenerate …

Comment on “Controversies about Interspinous Process Devices in the Treatment of Degenerative Lumbar Spine Diseases: Past, Present, and Future”

2017

Hematoma epidural lumbar crónico espontáneo

2005

Resumen Presentamos un caso excepcional de estenosis de canal lumbar con sindrome de cola de caballo por un hematoma cronico espontaneo en el espacio epidural L2-L3. Se trata de un varon de 53 anos que, sin ninguna clase de antecedente patologico relacionado con el problema actual (traumatismos, punciones lumbares, toma de antiagregantes o anticoagulantes), presenta una coleccion hematica epidural que va comprimiendo progresivamente la cola de caballo. Las pruebas de imagen mostraron una coleccion polilobulada, bien delimitada, que se interpreto como quiste sinovial. Tras la cirugia (laminectomia descompresiva y evacuacion) se confirmo el diagnostico con estudio histologico. Tras la operaci…

Prädiktoren der Lebensqualität nach orthopädischer Behandlung lumbaler "bandscheibenbedingter" Rückenschmerzen/ Predictors of quality of life after o…

2003

Zusammenssung Fragestellung: Untersuchung der pradiktiven Bedeutung organpathologischer, psychischer und psychosozialer Parameter fur die Lebensqualitat bei Katamnese von Patienten mit lumbalen "bandscheibenbedingten" Beschwerden. Methode: In dieser prospektiven Studie wurden 109 Patienten mit lumbaler "bandscheibenbedingter" Schmerzsymptomatik vor und ein Jahr nach stationarer orthopadischer Behandlung hinsichtlich ihrer Lebensqualitat und psychischen Belastung untersucht. Der Behandlungserfolg wurde mit Hilfe der deutschen Version des Short Form Health Survey (SF-36), die psychische Belastung mit Hilfe der Symptom-Checkliste 90 (SCL-90-R) und die Krankheitsbewaltigung mit Hilfe des Freibu…

Disability, Health-Related Quality of Life and Mortality in Lumbar Spine Fusion Patients—A 5-Year Follow-Up and Comparison With a Population Sample

2020

Study Design: Prospective follow-up study. Objectives: We aimed to assess the effect of lumbar spine fusion (LSF) on disability, health-related quality of life and mortality in a 5-year follow-up, and to compare these results with the general population. Methods: 523 consecutive LSF operations were included in a prospective follow-up. Disability was assessed by the Oswestry Disability Index (ODI), and HRQoL by the 36-item Short Form (SF-36) questionnaire using the physical and mental summary scores (PCS and MCS). The patients were compared with an age-, sex-, and residential area matched general population cohort. Results: The preoperative ODI in the patients was 46 (SD 16), and the change …

High Rate of Studies with Level 1 and 2 Evidence among the 100 Most Cited Articles in Lumbar Spinal Stenosis.

2021

Abstract Background To date, no study has used bibliometric analysis to review the most influential articles in lumbar spinal stenosis. The objective of this study was to identify and analyze the characteristics and the level of evidence of the 100 most cited articles on lumbar spinal stenosis Methods The Thomson Reuters Web of Science was accessed to find the 100 most cited articles on lumbar spinal stenosis. For each article, we recorded the number and density of citations, authors, country, journals and years, department, level of evidence, type of study, and if it was part of any multicenter studies. Results Until January 2017, the 100 most cited articles accumulated 11,136 citations (a…

3D interactive model of lumbar spinal structures of anesthetic interest

2014

A 3D model of lumbar structures of anesthetic interest was reconstructed from human magnetic resonance (MR) images and embedded in a Portable Document Format (PDF) file, which can be opened by freely available software and used offline. The MR images were analyzed using a specific 3D software platform for biomedical data. Models generated from manually delimited volumes of interest and selected MR images were exported to Virtual Reality Modeling Language format and were presented in a PDF document containing JavaScript-based functions. The 3D file and the corresponding instructions and license files can be downloaded freely at http://diposit.ub.edu/dspace/handle/2445/44844?locale=en. The 3D…

ICR in human cadaveric specimens: An essential parameter to consider in a new lumbar disc prosthesis design.

2020

[EN] Study design Biomechanical study in cadaveric specimens. Background The commercially available lumbar disc prostheses do not reproduce the intact disc's Instantaneous centre of Rotation (ICR), thus inducing an overload on adjacent anatomical structures, promoting secondary degeneration. Aim To examine biomechanical testing of cadaveric lumbar spine specimens in order to evaluate and define the ICR of intact lumbar discs. Material and Methods Twelve cold preserved fresh human cadaveric lumbosacral spine specimens were subjected to computerized tomography (CT), magnetic resonance imaging (MRI) and biomechanical testing. Kinematic studies were performed to analyse range of movements in or…

Technique and results of the retroperitoneoscopic adrenalectomy via a lumbar approach

1998

Introduction: Since 1992, endoscopic techniques have been used increasingly in adrenal-gland surgery. In the present paper, the technique of the retroperitoneoscopic adrenalectomy via a lumbar approach is described. Methods: The patient is placed in a lateral decubitus position. In the first step, a dilatation trocar is introduced in the retroperitoneal space to create an artificial cavity. The dilatation trocar is replaced by a blocking trocar to close off the operating field. After insufflation of CO2, two additional trocars are introduced in the area of the conventional flank incision. Adrenalectomy is performed via these ports. Once the adrenal gland is completely mobilized, it is inser…

Quantitative Analysis of Real-Time Infrared Thermography for the Assessment of Lumbar Sympathetic Blocks: A Preliminary Study

2021

Lumbar sympathetic blocks (LSBs) are commonly performed to treat pain ailments in the lower limbs. LSBs involve injecting local anesthetic around the nerves. The injection is guided by fluoroscopy which is sometimes considered to be insufficiently accurate. The main aim was to analyze the plantar foot skin temperature data acquired while performing LSBs in patients with complex regional pain syndrome (CRPS) affecting the lower limbs. Forty-four LSBs for treating lower limb CRPS in 13 patients were assessed. Pain medicine physicians visualized the infrared thermography (IRT) video in real time and classified the performance depending on the observed thermal changes within the first 4 min. Th…