Results 31 to 40 of about 96,159 (295)

Case report: Directional infusion of peripheral blood stem cells into the necrotic zone in femoral heads through the medial circumflex femoral artery: A tracing study

open access: yesFrontiers in Medicine, 2022
ObjectiveThis study aimed to explore whether peripheral blood stem cells (PBSCs) infused through the medial circumflex femoral artery to treat osteonecrosis of the femoral head (ONFH) could migrate into the necrotic area of femoral head.MethodsWe ...
Qiang Mao   +4 more
doaj   +1 more source

Apoptosis in the Osteonecrosis of the Femoral Head

open access: yesClinics in Orthopedic Surgery, 2010
Osteonecrosis of the femoral head is classified into idiopathic and secondary forms. A number of etiological factors in the development of osteonecrosis have been suggested but the biological mechanisms are still unclear. Recently, some reports suggested that the apoptosis is closely related to osteonecrosis of the femoral head.
Soo Ho Lee, Soo-Youn Lee, Yoon-Seok Youm
openaire   +2 more sources

A Vertically‐Stacked Optoelectronic Sensor for Localized Hemodynamics Monitoring

open access: yesAdvanced Functional Materials, EarlyView.
This work introduces a hemodynamics monitoring sensor that features vertically stacked microLEDs and a heterogeneously integrated photodetector. The vertically stacked microLEDs enable localized measurements, and by designing the interoptode distance according to the depth of the target region, this vertically stacked optoelectronic sensor is ...
Taeyeon Lee   +9 more
wiley   +1 more source

Research progress in the pathogenesis of hormone-induced femoral head necrosis based on microvessels: a systematic review

open access: yesJournal of Orthopaedic Surgery and Research
Hormonal necrosis of the femoral head is caused by long-term use of glucocorticoids and other causes of abnormal bone metabolism, lipid metabolism imbalance and blood microcirculation disorders in the femoral head, resulting in bone trabecular fracture ...
Tiancheng Ma   +5 more
doaj   +1 more source

Avascular Necrosis of the Femoral Head

open access: yesJournal of Investigative Surgery, 2017
About 250000 patients are operated on annually for hip arthroplasty in the USA alone. Of this number, about 10% the cause of their osteoarthritis is the avascular necrosis of the femoral head. But the causes of necrosis are multiple and many of them are still unknown.
Andrea Sallent   +3 more
openaire   +3 more sources

Engineering Anisotropic Mechanical Properties in Large‐Scale Fabricated Cartilage Constructs Using Microfiber Reinforcement

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents the development of large‐scale (15 cm2) cartilage constructs with anisotropic mechanical properties using melt electrowritten (MEW) microfiber reinforced cell‐laden gelatin methacryloyl (gelMA). These constructs mimic the mechanical behavior of native cartilage, providing a suitable environment for Articular Cartilage ...
Lennard Spauwen   +5 more
wiley   +1 more source

From Mechanoelectric Conversion to Tissue Regeneration: Translational Progress in Piezoelectric Materials

open access: yesAdvanced Materials, EarlyView.
This review highlights recent progress in piezoelectric materials for regenerative medicine, emphasizing their ability to convert mechanical stimuli into bioelectric signals that promote tissue repair. Key discussions cover the intrinsic piezoelectric properties of biological tissues, co‐stimulation cellular mechanisms for tissue regeneration, and ...
Xinyu Wang   +3 more
wiley   +1 more source

Cost Comparison of Femoral Head Banking versus Bone Substitutes

open access: yesJournal of Orthopaedic Surgery, 2010
Purpose. To compare the costs of femoral head banking versus bone substitutes. Methods. Records of femoral head banking from 1998 to 2008 were reviewed.
Hon-Bong Leung   +3 more
doaj   +1 more source

Modeling of femoral head aseptic necrosis in Wistar rats

open access: yesФундаментальная и клиническая медицина, 2022
Aim. To develop an animal model of femoral head aseptic necrosis for studying Legg–Calvé–Perthes disease.Materials and Methods. To induce the development of aseptic necrosis, we used Wistar rats (n = 8) which suffered from combined hypoperfusion of the ...
N. A. Shabaldin   +5 more
doaj   +1 more source

Upconversion Nanoparticle‐Covalent Organic Framework Core–shell Particles as Therapeutic Microrobots Trackable With Optoacoustic Imaging

open access: yesAdvanced Materials, EarlyView.
Upconversion nanoparticle‐covalent organic framework core–shell particles provide enhanced contrast for optoacoustic imaging by leveraging the optical absorption of upconversion luminescence within the covalent organic framework matrix. Beyond their role as contrast agents, these particles enable customizable therapeutic agent loading and release, as ...
Dong Wook Kim   +8 more
wiley   +1 more source

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