Study Design: Study analyses dimensions, angular orientations, and symmetry of articular facets at the L5-S1 junction associated with transitional anomalies comprising (1) L5-S1 accessory articulations; (2) complete sacralization of the L5 vertebrae; and (3) completely lumbarized S1 sacral segments. Data were compared with same parameters evaluated in normal sacrum.
Objective: Investigating probable morphologic differences in facet joints at the normal and transition affected lumbosacral junctions.
Summary Of Background Data: Facet joints at the L5-S1 play an important role in load sharing and imparting stability at this area as well as are involved in conditions such as isthmic spondylolysis, degenerative spondylolisthesis, and osteoarthritis, giving rise to low back pain situations. Several morphologic variations at the lumbosacral junction have been studied and inconsistently alluded to be associated with these painful conditions. Lumbosacral transitional anomalies, on the other hand, have also been linked to low back pain situations. L5-S1 transitions have been shown to be associated with altered L5-S1 articular morphology as well as load-sharing pattern at the region. The analysis of L5-S1 zygapophysial anatomy in context of transitional anomalies at this region has rarely been documented.
Methods: Both the superior articulating facets in the normal as well as in transition associated sacra were measured for (1) height, (2) width, (3) surface area, and (4) angulation of the articular surfaces with reference to the midsagittal plane. Data were also analyzed to find structural asymmetry between the two sides.
Results: Facets demonstrated smallest linear dimensions, surface areas, and maximum coronal orientation in lumbarized specimens. Facets areas associated with accessory articulations were also smaller and coronally oriented. Sacralization induced insignificant alteration in the facet morphology. Asymmetry (tropism) was observed in facets predominantly associated with accessory L5-S1 articulations.
Conclusions: L5-S1 transitions possess altered facet morphology. These alterations are possibly related to low back pain situations.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1097/BRS.0b013e3181f6ecb2 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Extracranial arteriovenous malformations (eAVMs) are complex vascular lesions characterized by anomalous arteriovenous connections, vascular instability, and disruptions in endothelial cell (EC)-to-mural cell (MC) interactions. This study sought to determine whether eAVM-MCs could induce endothelial-to-mesenchymal transition (EndMT), a process known to disrupt vascular integrity, in the eAVM microenvironment. eAVM and paired control tissues were analyzed using RT-PCR for EC (, , and ) and EndMT-specific markers (, , , /.
View Article and Find Full Text PDFEffect of Halogenation on the Optical, Electrical, and Thermal Properties of the Model Compound [Me(i-Pr)N][SnBr].
Inorg Chem
January 2025
School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, P. R. China.
Organic-inorganic hybrid lead halides have been extensively studied due to their outstanding physical properties and diverse compositional elements. However, environmentally benign tin-based hybrids with remarkable flexibility in bandgap engineering have been less investigated. Herein, we report the successful design and synthesis of three tin-based organic-inorganic hybrid compounds through precise molecular modification: [Me(i-Pr)N][SnBr] (), [MeCHCl(i-Pr)N][SnBr] (), and [MeCHBr(i-Pr-Br)N][SnBr] ().
View Article and Find Full Text PDFInvestigation of magnetic and transport properties of GdSbSe.
J Phys Condens Matter
January 2025
Department of Chemistry, Indian Institute of Technology Delhi, Indian Institute of Technology Delhi, Hauz Khas, New delhi, New Delhi, Delhi, 110016, INDIA.
We report the detailed investigation of the magnetic, transport, and magnetocaloric effects of GdS- bSe by magnetic susceptibility χ(T ), isothermal magnetization M (H), resistivity ρ(T, H), and heat capacity Cp(T ) measurements, crystallizing in the ZrSiS-type tetragonal crystal system with space group P 4/nmm. Temperature-dependent magnetic susceptibility measurements revealed long-range antiferromagnetic ordering with two additional magnetic anomalies below N´eel temperature (TN ≈ 8.6 K), corroborated through magnetocaloric and specific heat studies.
View Article and Find Full Text PDFHemodynamics in Left-Sided Cardiomyopathies.
Rev Cardiovasc Med
December 2024
IRCCS (Istituto di Ricerca e Cura a Carattere Scientifico) Humanitas Research Hospital, 20089 Rozzano-Milan, Italy.
Cardiomyopathies, historically regarded as rare, are increasingly recognized due to advances in imaging diagnostics and heightened clinical focus. These conditions, characterized by structural and functional abnormalities of the myocardium, pose significant challenges in both chronic and acute patient management. A thorough understanding of the hemodynamic properties, specifically the pressure-volume relationships, is essential.
View Article and Find Full Text PDFCultured human embryonic stem cells (hESCs) can develop genetic anomalies that increase their susceptibility to transformation. In this study, we characterized a variant hESC (vhESC) line and investigated the molecular mechanisms leading to the drift towards a transformed state. Our findings revealed that vhESCs up-regulate EMT-specific markers, accelerate wound healing, exhibit compromised lineage differentiation, and retain pluripotency gene expression in teratomas.
View Article and Find Full Text PDFWant 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!