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Adv Mater
January 2025
National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China.
3D printed titanium scaffold has promising applications in orthopedics. However, the bioinert titanium presents challenges for promoting vascularization and tissue growth within the porous scaffold for stable osteointegration. In this study, a modular porous titanium scaffold is created using 3D printing and a gradient-surface strategy to immobilize QK peptide on the surface with a bi-directional gradient distribution.
View Article and Find Full Text PDFBraz J Vet Med
January 2025
Veterinarian, Neurology Department, AniCura Istituto Veterinario di Novara, Granozzo con Monticello, Novara, Italy.
An 11-year-old male Bengal tiger () was referred for a 2-week history of ambulatory tetraparesis, generalized ataxia, and hypermetric gait, associated with mild right head tilt and spontaneous proprioceptive deficit on the right forelimb. Neuroanatomical localization was C1-C5 myelopathy; cerebellum-vestibular system involvement was also considered. Hematology and serum biochemistry were unremarkable, although serum vitamin A (0.
View Article and Find Full Text PDFGMS Ophthalmol Cases
December 2024
Department of Neuro-Ophthalmology, Aravind Eye Hospital and Postgraduate Institute, Coimbatore, India.
We present a case of a young woman who presented with blurring of vision in her right eye, worsening on near work. Detailed ophthalmic and neurological evaluation was done, which revealed light near dissociation, vermiform iris movements, constriction to diluted pilocarpine with absent deep tendon reflexes. Laboratory investigation indicated mild iron deficiency anemia and reduced vitamin D3 level.
View Article and Find Full Text PDFPenicillin is a frequently reported medication allergy. The beta-lactam ring shared between cephalosporins and penicillin often leads to the use of alternative antibiotics for surgical prophylaxis due to concern for cross-reactivity, despite a true IgE-mediated hypersensitivity being very rare. This misconception leads to the use of less effective second line antibiotics, such as clindamycin or vancomycin, for penicillin-allergic patients which has been shown to increase odds of postoperative infection in elective knee arthroplasty, shoulder arthroplasty and spine surgery.
View Article and Find Full Text PDFWearable Technol
December 2024
Department of Human Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands.
While active back-support exoskeletons can reduce mechanical loading of the spine, current designs include only one pair of actuated hip joints combined with a rigid structure between the pelvis and trunk attachments, restricting lumbar flexion and consequently intended lifting behavior. This study presents a novel active exoskeleton including actuated lumbar and hip joints as well as subject-specific exoskeleton control based on a real-time active low-back moment estimation. We evaluated the effect of exoskeleton support with different lumbar-to-hip (L/H) support ratios on spine loading, lumbar kinematics, and back muscle electromyography (EMG).
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