Results 71 to 80 of about 166,166,003 (218)

Ossification of the posterior longitudinal ligament: pathogenesis, management, and current surgical approaches

, 2011
Ossification of the posterior longitudinal ligament (OPLL) is an important cause of cervical myelopathy that results from bony ossification of the cervical or thoracic posterior longitudinal ligament (PLL).
Dan Raphael, Zachary A. Smith, Larry T. Khoo, Colin C. Buchanan   +3 more
core   +1 more source

The coelurosaur theropods of the Romualdo formation, early Cretaceous (Aptian) of Brazil: Santanaraptor placidus meets Mirischia asymmetrica

The Anatomical Record, Volume 309, Issue 10, Page 2752-2789, October 2026.
Abstract The upper carbonate concretion levels of the Romualdo Formation (Aptian, Brazil) have yielded several theropod dinosaur remains, including spinosaurids and the coelurosaurs Santanaraptor placidus and Mirischia asymmetrica, the phylogenetic affinities of which are controversial.
Rafael Delcourt, Orlando Nelson Grillo, Christophe Hendrickx, Maximilian Kellermann, Max Cardoso Langer   +4 more
wiley   +1 more source

Bridging the cervicothoracic junction during posterior cervical laminectomy and fusion for the treatment of multilevel cervical ossification of the posterior longitudinal ligament: a retrospective case series

BMC Musculoskeletal Disorders, 2022
Background The purpose of this study was to investigate the surgical efficacy of crossing the cervicothoracic junction during posterior cervical laminectomy and fusion for the treatment of multilevel cervical ossification of the posterior longitudinal ...
Dong-Zhao Wu, Zhen-Fang Gu, De-Jing Meng, Shu-Bing Hou, Liang Ren, Xian-Ze Sun   +5 more
doaj   +1 more source

Re‐evaluation of a soft crested Edmontosaurin, with implications for hadrosaurid life appearance and diversity

The Anatomical Record, Volume 309, Issue 10, Page 2636-2655, October 2026.
Abstract Hadrosaurid dinosaurs are generally regarded as “crested” or “non‐crested” depending on the presence or absence of a bony cranial crest. At least one supposedly “non‐crested” hadrosaur is known to have possessed a soft tissue cranial crest (or comb), based on an exceptionally preserved “mummified” specimen. Here we redescribe this specimen and
Henry S. Sharpe, Phil R. Bell, Ian Baylatry, Robin Sissons, Corwin Sullivan   +4 more
wiley   +1 more source

Long-term follow-up of the progression of ossification of the posterior longitudinal ligament

, 2010
The authors report the case of a man with cervical ossification of the posterior longitudinal ligament (OPLL) who was observed for more than 26 years.
Atsushi Kimura, Kozo Nakamura, Hirotaka Chikuda, Atsushi Seichi, Motoaki Murakami, Katsushi Takeshita   +5 more
core   +1 more source

Integrative Transcriptomic Profiling Delineates LTBP4‐Driven Fibroblast Reprogramming Across the Ossification Continuum of the Ligamentum Flavum

The FASEB Journal, Volume 40, Issue 17, 15 September 2026.
This study delineates the dynamic transcriptomic landscape of OLF across normal, immature, and mature stages via RNA‐seq. LTBP4 shows progressive downregulation and is validated in external datasets. Single‐cell and spatial transcriptomics identify fibroblasts as the cellular source.
Xiao Zhang, Tengyao Niu, Yulong Zhao, Zhenguo Liu, Wenbo Gu, Donghui Cao, Yanrong Tian, Haifeng Yuan   +7 more
wiley   +1 more source

Ossification of the ligamentum flavum

Spine Surgery and Related Research, 2017
Ossification of the ligamentum flavum (OLF or OYL: ossification of the yellow ligament) usually occurs at the lower thoracic level and causes various types of neurological symptoms in accordance with the compression level of the spinal cord, the nerve ...
Shigeru Hirabayashi
doaj   +1 more source

Evolutionary Signal and Development of the Foramen Dorsum Sellae (Nov.) Across Primates

Journal of Morphology, Volume 287, Issue 9, September 2026.
The dorsum sellae of the sphenoid bone occasionally exhibits an accessory opening, though its significance is unknown. We scored its presence in humans (N = 114) and 30 non‐human primate genera (N = 1468) and combined histological, dissection‐based, and phylogenetic approaches to understand its function. The foramen occurred in 12% of humans and 33% of
Stephanie L. Canington, Zana R. Sims, Alexandria L. Sambrano, Christian A. Mastroianni, Michael L. Platt, Timothy D. Smith, Valerie B. DeLeon, Myra F. Laird   +7 more
wiley   +1 more source

Classification and management of the tandem ossification of the posterior longitudinal ligament and flaval ligament

, 2009
Objective: To provide appropriate guidelines for treatment of tandem ossification of the posterior longitudinal ligament (OPLL) and flaval ligament (OFL).
Yang, HL, Guo, JJ, Luk, KDK, Cheung, KMC, Tang, TS   +4 more
core   +1 more source

Quantifying Soft‐Surgery in Cochlear Implantation: Multimodal Data From 30 International Specialists

The Laryngoscope, Volume 136, Issue 9, Page 3990-3997, September 2026.
Objective data from 30 specialist cochlear implant surgeons showed that surgical handling strongly influences intracochlear mechanical stress during implantation. Surgeons with fewer than 50 lifetime insertions performed significantly worse than more experienced colleagues, while self‐assessment did not reflect objective performance in any group ...
Philipp Aebischer, Georgios Mantokoudis, Marco Caversaccio, Stefan Weder   +3 more
wiley   +1 more source