Results 101 to 110 of about 37,906 (184)

New information on Late Triassic sauropodomorph dinosaurs provides support for the independent acquisition of postcranial skeletal pneumaticity in avemetatarsalian lineages

open access: yesJournal of Anatomy, EarlyView.
PSP in early‐branching sauropodomorphs probably evolved first in the neural arches of the posterior cervical vertebrae, expanding anteriorly and posteriorly along the vertebral column. The distribution of PSP in Late Triassic early‐branching sauropodomorphs does not appear to be correlated with body size.
Samantha L. Beeston   +5 more
wiley   +1 more source

Variation in trabecular bone microarchitecture across rhesus macaque (Macaca mulatta) load‐bearing joints

open access: yesJournal of Anatomy, EarlyView.
Aging of bone density (BV/TV) is regional: Forelimb [left] elements gain bone sporadically (orange) but hind limb elements [right] lose bone globally (blue). Abstract Globally, human population structure is quickly trending older, increasing the prevalence and systemic burden of age‐related skeletal disorders such as osteoporosis.
Cassandra M. Turcotte   +16 more
wiley   +1 more source

The junction between the midgut and hindgut co‐localizes with the rectosigmoid junction

open access: yesJournal of Anatomy, EarlyView.
At 5 weeks of development, the midgut has formed its primary loop (left). It is well established that the midgut is bounded cranially by the caudal end of the ventral mesentery and the presence of the common bile duct, but its caudal boundary remains to be established.
Hui Gao   +5 more
wiley   +1 more source

Significance of fiber orientation in the interosseous sacroiliac ligament: An anatomical and histological study of the implications of its mechanical adaptation

open access: yesJournal of Anatomy, EarlyView.
Fiber structure of the interosseous sacroiliac ligament exhibits a distinct organization, with predominantly vertical fibers in the inferior region and predominantly horizontal fibers in the superior region. These fiber alignment patterns likely reflect mechanical adaptation to the sacroiliac joint motion and may support imaging‐based evaluation of its
Masahiro Tsutsumi   +5 more
wiley   +1 more source

Development of the abdominal musculature in the chicken embryo

open access: yesJournal of Anatomy, EarlyView.
In this study, we investigate anatomy, morphogenesis, segmental origin, and fiber formation of the abdominal musculature in the chicken embryo. We show that abdominal muscles arise from somites 24 to 28, and that the segmental identity of individual fibers in the abdominal muscle sheets is maintained.
Margarethe Draga   +6 more
wiley   +1 more source

Comparative Analysis of Three Vertebral Screw Placement Directions in Anterior Thoracolumbar Fracture Surgery: A Finite Element Study

open access: yesOrthopaedic Surgery, Volume 17, Issue 5, Page 1464-1477, May 2025.
This study compares the biomechanical effects of three anterior fixation systems in thoracolumbar surgery—HXTL, NHXTL, and Medtronic's CD Horizon ANTERIOR. Finite element analysis evaluates stress and displacement across vertebral bodies and support structures under varying load conditions. Results indicate the HXTL system minimizes nail–rod stress yet
Xuehai Jia   +7 more
wiley   +1 more source

Factors and Experiences Associated With Unscheduled Hospital Readmission After Lateral Lumbar Interbody Fusion: A Case–Controlled Study

open access: yesOrthopaedic Surgery, Volume 17, Issue 5, Page 1389-1396, May 2025.
The research utilized a case–control approach to contrast patients experiencing unscheduled readmissions with those undergoing planned readmissions due to staged surgery. Findings indicated a 3.88% rate of unscheduled readmissions, mainly linked to adjacent segment disease, with 3.35% necessitating reoperation.
Wangmi Liu   +5 more
wiley   +1 more source

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