Articles tagged with Prosthetics
After TAVI, patients experience improved hemodynamic values, including reduced valve gradients and increased effective orifice area. The study also found sustained reduction in end-diastolic septal wall thickness and improvement in left ventricular ejection fraction at 12 months post-implantation.
Researchers develop a way to duplicate the neural mechanism of learning in rats, restoring memory function. The team's artificial hippocampal system can strengthen internal brain memory and enhance cognitive processes, paving the way for potential treatments for Alzheimer's disease and other neurological disorders.
Researchers recreated ancient Egyptian artificial toes and tested them on volunteers, finding they could help with walking. The toes date from before 600BC, predating the Roman Capula Leg as the earliest known practical prosthesis.
The researchers aim to understand how animals, including humans, quickly adjust to unexpected events. By studying the sea slug's ability to adjust its eating behavior, they hope to develop mathematical models that can predict how patterns of activity in the nervous system change over time.
A recent study published in the Journal of Bone and Joint Surgery found that gender-specific total knee prostheses provide no clinical benefits for women, unlike what was initially hoped. In fact, standard prostheses fit women's knees better, resulting in less bleeding and improved outcomes.
A 26-year study found that 18 months of combined antibiotic therapy with doxycycline and hydroxychloroquine is sufficient to make infection undetectable in most patients, but six patients experienced serological relapse after 15-24 months. The optimal treatment duration may be longer for prosthetic valve patients.
Experts will present on techniques using digital technology to separate conjoined twins, develop facial prostheses, and analyze anthropologic specimens. The symposium aims to enhance outcomes through the use of digital tools, such as radiographic data and tactile medical modeling.
Researchers at the University of Michigan developed an artificial foot that recycles energy wasted in between steps, reducing energy spent per step by 14% compared to conventional prosthetic feet. This innovation could significantly improve walking efficiency for individuals with lower limb amputations.
A study of 129 patients found high rates of infection and mechanical failure with inflatable prostheses; however, hydraulic devices remain the best option for achieving voiding while standing and sexual intercourse. The choice of device may favor two-piece over three-piece designs.
Developed by Arizona State University researchers, SPARKy is a smart, active, and energy-storing below-the-knee prosthetic that enables users to walk on various surfaces and navigate stairs. The device uses regenerative kinetics to store energy as the wearer walks, allowing for enhanced ankle motion and reduced fatigue.
Researchers at Caltech have developed a robot called CYCLOPS that simulates the visual experience of blind individuals with implanted visual prostheses, refining design and enhancing its effectiveness. The robot's camera system processes images, allowing scientists to test various enhancements without relying on actual blind users.
Researchers at the University of Michigan have developed an artificial neuromuscular junction that can relay motor and sensory electrical impulses, potentially improving fine motor control and restoring the sense of touch. The bioengineered interface was tested in laboratory rats and showed promising results.
Researchers found exceptionally low rates of complications and stable gradient release after one-year follow-up. Multiple vascular access sites are feasible, but periprocedural complications are considerable due to the high-risk patient population.
The study found that Pistorius' energy cost of running is similar to accomplished male distance runners but 17% lower than performance-matched sprinters. His ability to hold speed over longer sprint races is identical to intact-limb athletes, but his sprinting mechanics are dissimilar.
Scientists have developed a nano-sized agent that kills bacteria on implanted devices by penetrating their defensive wall and eliminating the threat. The discovery holds promise for treating infected implants with no effective antidote.
Medical students practice breast exams on a mixed reality human, improving their technical abilities and empathy towards patients. The system allows for unscripted interactions, teaching students to build their database of experience and respond to patient concerns.
Researchers at the SNM's 56th Annual Meeting found that PET scans can accurately diagnose infections in prosthetic knee joints, outperforming traditional methods. This breakthrough could lead to improved treatment outcomes for patients undergoing joint replacements.
Prosthetic ears have been shown to improve sound pickup by 8.1 decibels, benefiting patients with normal hearing who wear them.
The transapical aortic valve implantation (TA-AVI) technique offers a direct and antegrade approach to the aortic valve, minimizing manipulation in the aortic arch and reducing stroke risk. This method is performed as an off-pump procedure, utilizing high-quality imaging and fluoroscopic visualization.
A comprehensive study of hip and knee replacement surgeries in England found that one in seventy-five patients require revision after three years. The research suggests that different patterns may emerge over a longer follow-up period, emphasizing the need for further research to evaluate surgical procedures and types of implants.
Researchers at Washington University in St. Louis found that humans inspect objects more thoroughly when their hands are near them, indicating a new insight into brain wiring that could impact rehabilitative therapy techniques and prosthetic design.
Recent studies at George Mason University found pregnant women face judgment and obstacles when applying for jobs, particularly in traditionally masculine fields. They experience overt hostility and patronizing behavior, hindering their success.
A rare case of ADF was reported, where the prosthesis was detached from the duodenal wall and a pediculated fragment of the greater omentum was placed to relieve mechanical bowel obstruction. The clinical suspicion for ADF is essential, with esophago-gastro-duodenoscopy and CT scans being the most commonly used diagnostic techniques.
Prof. Hugh Herr's groundbreaking work in biomechatronics has led to the development of new prosthetic innovations that enhance mobility and quality of life for thousands of people with physical challenges. His research focuses on human amplification and rehabilitation systems, enabling leg amputees to walk faster and more stably.
Mayo Clinic researchers have discovered a new diagnostic test to detect infection in prosthetic joints, which samples bacteria adhering to the prosthesis surface. The new method detected more infected cases (78.5%) than conventional tests (60.8%), offering improved treatment options and patient outcomes.
Researchers at ASU and Walter Reed Army Medical Center are creating a smart, active, and energy-storing transtibial prosthesis called SPARKy. The device has been shown to amplify motor power by three-fold in experiments with able-bodied subjects, enabling it to revolutionize prosthetics for military personnel and others.
Research reveals that athletes with acute lateral ankle sprains have significantly weaker balance ability when their eyes are closed. Wheelchair provision varies by demographic characteristics, with disparities found in the standard of care within the Veterans Health Administration. Near-infrared spectroscopy measures cerebral oxygenat...
Dr. Feine has made significant contributions to prosthodontics through her research on implant-supported prostheses and maxillary implant prostheses on speech. She is recognized for her outstanding research accomplishments in the field of prosthodontics with the Research in Prosthodontics and Implants Award.
Researchers have made significant advancements in managing chronic pain in spinal cord injury patients. Studies show that specific pain patterns are stable over time, while others can be improved through treatment. Additionally, virtual reality systems have been shown to provide natural movement control and flexibility for balance trai...
Scientists found that African and South American fish independently developed electric organs by altering sodium channel proteins, allowing them to generate and sense electric fields. This convergent evolution of molecules provides valuable insights into the role of genes in human health and disease.
Scientists at Vrije Universiteit in Amsterdam developed a new type of valve producing its own vocal sound by a small silicone rubber flap acting as an artificial vocal chord. Female patients with weak voices benefit from this prosthesis, regaining a natural female pitch.
USC researchers successfully implanted six blind patients with a retinal prosthesis, enabling them to detect light, identify objects, and perceive motion. The device shows promise for treating degenerative eye diseases like retinitis pigmentosa and age-related macular degeneration.
Regular exercise improves physical and psychological well-being among people with spinal cord injuries, as well as older adults and nursing home residents. Exercise also promotes stability and ease of movement for lower-limb amputees, while correcting visual impairments can improve rehabilitation effectiveness.
A study found that NICE guidelines on surgical procedures had no significant impact on the adoption of recommended practices. In contrast, an increase in non-cement prostheses for hip replacements was reported after the guidelines were issued. The researchers suggest using more active dissemination methods to promote effective uptake.
A study found that MDCT was more accurate than plain film in detecting bone loss near the prosthesis (100% vs 67%) and fractures (100% vs 94%). MDCT also showed improved detection of loose components (61% vs 54%). The study suggests MDCT should be performed for patients with questionable x-rays or those needing surgery.
Groundbreaking research has developed implantable microelectrode arrays that can record neural sensory responses from paralyzed individuals, allowing for accurate prediction of leg positions. A sterile surgical procedure implants the devices, which track the position of the leg using a digital camera and mathematical analysis.
The USC Biomimetic MicroElectronic Systems (BMES) center will develop biomimetic devices replacing damaged human body parts, with potential treatments for blindness, paralysis and memory loss. The $34 million grant enables industry partnerships and educational programs in Los Angeles-area schools.
Researchers have successfully completed the first phase of a clinical trial using a microelectronic retinal prosthesis, which is intended to restore vision in patients with severe eye diseases. The device, developed by Second Sight, LLC, has shown promising results, including the ability to detect light and distinguish between objects.
Researchers at USC's Doheny Retina Institute have made significant progress with a permanent retinal prosthesis, designed to restore vision to patients with retinitis pigmentosa and macular degeneration. The device has been implanted in the first patient as part of an FDA-approved trial.
A Harvard research team studied human running on various surface stiffnesses, finding a 12.5-fold decrease in surface stiffness led to a 12% decrease in metabolic rate and a 29% increase in leg stiffness, with support mechanics remaining unchanged.