The dorsal wall of the sacrum presents various anatomical variations, while the dorsal bony wall of the sacral canal suffers more. We report a case of a sacrum with a series of variants in the midline due to abnormal ossification and a bizarre aperture on the sagittal plane between the 1st and the 2nd sacral spinous processes. A failure of the ossification patter during embryological life, or an ossification of the supraspinous ligament may result in such an aperture. Sacrum variety is of great importance for the daily proper medical practice.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.5603/FM.a2019.0057 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Analysis of the Cranial Aperture of the Optic Canal in Patients with Chiari Type-I Malformation.
Turk Neurosurg
November 2024
Istanbul Medipol University Faculty of Medicine, Department of Neurosurgery, Istanbul, Türkiye.
Aim: To examine the morphological properties of the cranial aperture of the optic canal (CAOC) in patients with a Chiari type-I malformation (CIM).
Material And Methods: Radiological images of 40 patients with CIM (24 females/16 males, mean age: 20.75 ± 14.
Clinical Outcomes of a Novel Hybrid Transtibial Technique for Femoral Tunnel Drilling in Anterior Cruciate Ligament Reconstruction: A Large Single-Center Case Series With a Minimum 2-Year Follow-up.
Orthop J Sports Med
June 2024
OrthoCarolina Sports Medicine Center, Charlotte, North Carolina, USA.
Background: A novel hybrid transtibial (HTT) approach to femoral tunnel drilling in anterior cruciate ligament reconstruction (ACLR) has been developed that circumvents the need for knee hyperflexion and orients the graft in the most anatomic position without sacrificing the tunnel length or aperture.
Hypothesis: Patients who underwent ACLR utilizing the HTT technique would achieve excellent patient-reported outcome scores and experience low rates of graft failure and reoperations.
Study Design: Case series; Level of evidence, 4.
Deep learning-based optimization of field geometry for total marrow irradiation delivered with volumetric modulated arc therapy.
Med Phys
June 2024
Radiotherapy and Radiosurgery Department, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy.
Background: Total marrow (lymphoid) irradiation (TMI/TMLI) is a radiotherapy treatment used to selectively target the bone marrow and lymph nodes in conditioning regimens for allogeneic hematopoietic stem cell transplantation. A complex field geometry is needed to cover the large planning target volume (PTV) of TMI/TMLI with volumetric modulated arc therapy (VMAT). Five isocenters and ten overlapping fields are needed for the upper body, while, for patients with large anatomical conformation, two specific isocenters are placed on the arms.
View Article and Find Full Text PDFFourier tools for the evaluation of refractive multifocal designs.
Sci Rep
December 2023
School of Optometry, University of Detroit Mercy, Novi, 48377, MI, USA.
This paper presents innovative tools and methodologies for the theoretical assessment of optical properties in refractive multifocal designs. Utilizing lens segmentation techniques and classical Fourier optics, these tools can be of help evaluating multifocal contact lenses, intraocular lenses, small aperture designs, and corneal inlays. As an example of their utility, this study presents the through-focus Visual Strehl ratios in the frequency domain of 12 multifocal contact lenses from four companies, derived from the sagittal power profiles obtained with a NIMO equipment (LAMBDA-X) for three base prescriptions (- 6.
View Article and Find Full Text PDFExperimental comparison of linear regression and LSTM motion prediction models for MLC-tracking on an MRI-linac.
Med Phys
November 2023
Image X Institute, University of Sydney Central Clinical School, Sydney, New South Wales, Australia.
Article Synopsis
- MRI-guided radiotherapy using MLC-tracking is examined for its effectiveness in managing motion without extending treatment duration, focusing on reducing system latency through prediction methods.
- The study compares the performance of different motion prediction models (linear regression vs. LSTM) on an MRI-linac, utilizing data from lung cancer patients' respiratory motions.
- Experiments on a motion phantom involved real-time adjustments of the MLC aperture, with performance measured by the RMSE between the predicted and actual target positions using various motion prediction techniques.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!