Extradural Myxopapillary Ependymoma arising in the lower lumbar region

2010 ◽  
Vol 9 (1) ◽  
Author(s):  
A Agrawal ◽  
A Kakani ◽  
A Bhake ◽  
A Agrawa ◽  
N Meshram ◽  
...  
Keyword(s):  
Myxopapillary Ependymoma ◽  
Lumbar Region ◽  
Lower Lumbar

Sensitivity of Intersegmental Angles of the Spinal Column to Errors Due to Marker Misplacement

2015 ◽  
Vol 137 (7) ◽  
Author(s):  
Hossein Rouhani ◽  
Sara Mahallati ◽  
Richard Preuss ◽  
Kei Masani ◽  
Milos R. Popovic
Keyword(s):  
Relative Error ◽  
Sagittal Plane ◽  
Gaussian Function ◽  
Spinal Column ◽  
Transverse Plane ◽  
Lumbar Region ◽  
Experimental Errors ◽  
Rms Error ◽  
Lower Lumbar ◽  
Anterior Direction

The ranges of angular motion measured using multisegmented spinal column models are typically small, meaning that minor experimental errors can potentially affect the reliability of these measures. This study aimed to investigate the sensitivity of the 3D intersegmental angles, measured using a multisegmented spinal column model, to errors due to marker misplacement. Eleven healthy subjects performed trunk bending in five directions. Six cameras recorded the trajectory of 22 markers, representing seven spinal column segments. Misplacement error for each marker was modeled as a Gaussian function with a standard deviation of 6 mm, and constrained to a maximum value of 12 mm in each coordinate across the skin. The sensitivity of 3D intersegmental angles to these marker misplacement errors, added to the measured data, was evaluated. The errors in sagittal plane motions resulting from marker misplacement were small (RMS error less than 3.2 deg and relative error in the angular range less than 15%) during the five trunk bending direction. The errors in the frontal and transverse plane motions, induced by marker misplacement, however, were large (RMS error up to 10.2 deg and relative error in the range up to 58%), especially during trunk bending in anterior, anterior-left, and anterior-right directions, and were often comparable in size to the intersubject variability for those motions. The induced errors in the frontal and transverse plane motions tended to be the greatest at the intersegmental levels in the lower lumbar region. These observations questioned reliability of angle measures in the frontal and transverse planes particularly in the lower lumbar region during trunk bending in anterior direction, and thus did not recommend interpreting these measures for clinical evaluation and decision-making.

The volume of true heterotopies of the spinal cord

1902 ◽  
Vol 2 (11-12) ◽  
pp. 612-630
Author(s):  
V. Methodiev
Keyword(s):  
Spinal Cord ◽  
Lumbar Region ◽  
Normal Spine ◽  
Lower Lumbar

Here it is necessary to disassemble separately the doubling of the spinal cord in the normal spine and the doubling that sometimes accompanies the so-called. spinam bifidam (mainly in the lower lumbar region).

scholarly journals Measurement of the nerve root of the lower lumbar region using digital images

Medicine ◽  
2018 ◽  
Vol 97 (8) ◽  
pp. e9848 ◽  
Author(s):  
Xin Zhao ◽  
Jie Zhao ◽  
Jie Guan ◽  
Junkai Zeng ◽  
Chen Han ◽  
...  
Keyword(s):  
Nerve Root ◽  
Digital Images ◽  
Lumbar Region ◽  
Lower Lumbar

Design and Development of a Modular Medical Simulation Prototype for Pediatric Spinal Detethering Surgeries

2013 ◽  
Vol 7 (2) ◽  
Author(s):  
Joshua Bailey ◽  
Kalyani Nair ◽  
Alyssa Macuk ◽  
Christopher Frank ◽  
Ankit Patel ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Medical Students ◽  
Surgical Procedure ◽  
Pressure Sensors ◽  
Pressure Profile ◽  
Medical Simulation ◽  
Lumbar Region ◽  
Noise Elimination ◽  
Simulation Tools ◽  
Lower Lumbar

Medical simulation is a developing field used in the education of medical students, doctors, residents, and many other medical professionals. Despite emerging simulation tools, little has been done to address surgeries in congenital patients, specifically with regards to the spinal cord. The objective of this project was to design, fabricate, and functionally evaluate a medical simulator to address the challenge of teaching the spinal detethering surgical procedure to neurosurgery residents. This simulator was designed to mimic anatomical and physiological characteristics of the lower lumbar region. Pressure sensors were used to quantify the forces that were applied to the spinal cord during the surgical procedure and a LabVIEW program was developed to monitor the pressure profile. The simulator was functionally evaluated by six residents, one fellow, one doctor, and two medical students. A conclusive, quantitative method for scoring these surgeries has not yet been developed, however, the residents and medical students were able to compare their procedures with those of more experienced doctors and fellows via qualitative methods. Future developments will include incorporating quantitative scoring methods as well as noise elimination hardware into the design.

Morphological Analysis of the Human Lumbar Spine Using Sagittal Magnetic Resonance Imaging

2021 ◽  
Vol 10 (1) ◽  
pp. 59-62
Author(s):  
Ge Wu ◽  
Yu Liu ◽  
Wen Wen ◽  
Yang Zhang ◽  
Ruoliang Tang ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Vertebral Body ◽  
Body Height ◽  
Lumbar Region ◽  
Low Back ◽  
Monthly Basis ◽  
Work Related ◽  
Two Samples ◽  
Lower Lumbar

Sagittal morphological dimensions of the human lower lumbar structures are critical inputs for the comprehensive biomechanical modeling of spinal motions and the risk assessment of work-related low back pain. In this new quantitative exploration of sagittal morphology across the lower lumbar region (i.e., from L3/L4 to L5/S1), intervertebral disc (IVD) height, vertebral body (VB) height, endplate concavity was measured from two samples of subjects, including 1) archived medical records (AMR) collected from 57 patients and 2) 43 asymptomatic subjects with no history of low back pain (ASYM), independently by four individuals on a monthly basis. First, the current study achieved good inter- and intra-rater reliabilities. In addition, the current results also revealed that AMR sample had greater anterior-to-posterior vertebral body height ratio in vertebra L3 and L5. On the other hand, ASYM sample had significantly greater endplate concavity.

scholarly journals Current Position of Sacral Neuromodulation in Treatment of Fecal Incontinence

2021 ◽  
Vol 34 (01) ◽  
pp. 022-027
Author(s):  
Binit Katuwal ◽  
Jasneet Bhullar
Keyword(s):  
Fecal Incontinence ◽  
Pulse Generator ◽  
Lumbar Region ◽  
Current Position ◽  
Beneficial Effects ◽  
Tined Lead ◽  
Neurologic Function ◽  
Complex Relationships ◽  
Limited Physical Activity ◽  
Lower Lumbar

AbstractFecal incontinence (FI) is defined as uncontrolled passage of feces or gas for at least 1-month duration in an individual who previously had control. FI is a common and debilitating condition affecting many individuals. Continence depends on complex relationships between anal sphincters, rectal curvatures, rectoanal sensation, rectal compliance, stool consistency, and neurologic function. Factors, such as pregnancy, chronic diarrhea, diabetes mellitus, previous anorectal surgery, urinary incontinence, smoking, obesity, limited physical activity, white race, and neurologic disease, are known to be the risk factors for FI. Conservative/medical management including biofeedback are recognized as the first-line treatment of the FI. Those who are suitable for surgical intervention and who have failed conservative management, sacral nerve stimulation (SNS) has emerged as the treatment of choice in many patients. The surgical technique involves placement of a tined lead with four electrodes through the S3 sacral foramen. The lead is attached to a battery, which acts as a pulse generator, and is placed under the patient's skin in the lower lumbar region. The use of SNS in the treatment of FI has increased over the years and the beneficial effects of this treatment have been substantiated by multiple studies. This review describes SNS as a modality of treatment for FI and its position in the current medical diaspora in patients with FI.

scholarly journals Spinous Process Osteochondroma as a Rare Cause of Lumbar Pain

2016 ◽  
Vol 2016 ◽  
pp. 1-4
Author(s):  
Bárbara Rosa ◽  
Pedro Campos ◽  
André Barros ◽  
Samir Karmali ◽  
Esperança Ussene ◽  
...  
Keyword(s):  
Ct Scan ◽  
Histological Study ◽  
Spinous Process ◽  
Rare Event ◽  
Lumbar Vertebra ◽  
Lumbar Pain ◽  
Lumbar Region ◽  
Palpable Mass ◽  
One Year ◽  
Lower Lumbar

We present a case of a 5th Lumbar Vertebra (L5) spinous process osteochondroma as a rare cause of lumbar pain in an old patient. A 70-year-old male presented with progressive and disabling lower lumbar pain. Tenderness over the central and left paraspinal area of the lower lumbar region and a palpable mass were evident. CT scan showed a mass arising from the spinous process of L5. Marginal resection of the tumor was performed through a posterior approach. The histological study revealed an osteochondroma. After surgery, pain was completely relieved. After one year there was no evidence of local recurrence or symptoms. Osteochondromas rarely involve the spine, but when they do symptoms like pain, radiculopathy/myelopathy, or cosmetic deformity may occur. The imagiologic exam of election for diagnosis is CT scan. When symptomatic the treatment of choice is surgical resection. The most concerning complication of osteochondromas is malignant transformation, a rare event.

scholarly journals Characterization of lumbar angle, pelvic sagittal balance and flexibility in preschoolers

2020 ◽  
pp. 1-5
Author(s):  
Camila Mayumi Beresoski ◽  
Mariana Zingari Camargo ◽  
Cláudia Patrícia Cardoso M. Siqueira ◽  
Débora Beckner de Almeida Leitão Prado Vieira ◽  
Fabíola Unbehaun Cibinello ◽  
...  
Keyword(s):  
Public Schools ◽  
Sagittal Balance ◽  
Pelvic Tilt ◽  
Sagittal Plane ◽  
Lumbar Region ◽  
Test Results ◽  
Balance Test ◽  
Hamstring Muscles ◽  
Lower Lumbar

Introduction: The alignment between anterior superior and inferior posterior iliac spine is related to the lumbar curvature in the sagittal plane. Objective: To characterize the flexibility and angulations of the lumbar spine and the relation with the pelvic tilt in sagittal plane of preschool children. Methods: Participated in the study 138 children with ages ranging from five to six years and enrolled in eight public schools. The evaluation was performed by photogrammetry, pelvic sagittal balance test and limb stretching by fleximeter and Thomas test. Results: There was no difference in the lumbar angle with relation to gender, body mass and age. With regard to pelvic sagittal balance, the majority of preschoolers presented pelvic retroversion (56.6%). Children with pelvic anteversion (4.3%) presented a lower lumbar angle, indicating hyperlordosis. Children with pelvic sagittal balance presented better flexibility of the hamstring muscles than those with the pelvis in retroversion and anteversion. Conclusion: Flexibility was greatest in girls and in five-year-old children. The angle of the lumbar was 24.07°. The pelvis was retroversed in most children, differing from expected for the age group. The lowest angle of the lumbar region corresponded to a pelvis in anteroversion and balanced.

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