PubMed Journals Articles About "Osseointegration Click Prosthesis Following Amputation" RSS

02:28 EST 14th November 2018 | BioPortfolio

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Showing "Osseointegration click prosthesis following amputation" PubMed Articles 1–25 of 644

Osseointegration click-on prosthesis following leg amputation.

Since its introduction in 2009, more than 150 people in the Netherlands have received an osseointegration prosthesis following leg amputation. Serious complications such as septic or aseptic loosening and breakage of the implant are rare. In this article we highlight the results so far, the indications and contra-indications, our first experiences with patients who have undergone amputation due to vascular disease, and the future of osseointegration treatment in the Netherlands.

Effects of activity intensity, time, and intermittent doffing on daily limb fluid volume change in people with transtibial amputation.

The volume of a prosthesis user's residual limb changes during the day and may affect the fit of the prosthesis. These changes must be managed by the user to prevent discomfort, skin breakdown, and falls.

Prosthesis use is associated with reduced physical self-disgust in limb amputees.

Self-disgust is an emotion schema negatively affecting people's body image and is triggered by bodily imperfections and deviations from the "normal" body envelope. In this study, we explore the idea that "normalising" the body in those with limb amputations via the prosthesis would be linked to reduced self-directed disgust. An international clinical community sample (N = 83) with mostly lower limb amputations completed measures about their demographics, prosthesis, adjustment, body image disturbance, p...

Does reconstruction preserving the first or first two rays benefit over full transmetatarsal amputation in diabetic foot?

The benefits of total transmetatarsal amputation (TMA) over higher level amputation are well known. However, there are no studies evaluating the effects of first or the first two ray sparing transmetatarsal amputation with flap coverage. We evaluated this approach in regards to functional outcome and to identify long-term complications.

CoreValve Double Jeopardy: Embolized Valve Capture With Subsequent Valve.

During transcatheter aortic valve replacement with a self-expanding prosthesis, prosthesis embolization represents a rare but severe complication. Etiologies of prosthesis embolization include improper sizing and malpositioning, specifically high deployment with respect to the aortic annulus. Treatment of embolization into the aorta relies upon repositioning of the prosthesis using endovascular snares or removal with open surgery. Patients with prosthesis embolization have a high risk of mortality and morbi...

Patient's own natural teeth as part of the interim prosthesis on immediately placed single implants in a staged surgical approach.

A technique is described where the tooth's natural crown is used as part of the interim implant supported prosthesis in clinical situations where a tooth with poor prognosis is extracted and an implant is placed immediately after tooth extraction. A preliminary impression is made before tooth extraction, and the exact tooth positioning is assessed in the laboratory as part of the treatment plan. An acrylic resin repositioning jig is fabricated that will guide the clinician in seating and orienting the crown...

Effects of Test Socket on Pain, Prosthesis Satisfaction, and Functionality in Patients with Transfemoral and Transtibial Amputations.

BACKGROUND The aim of this retrospective study was to investigate the frequency of admissions, reason for admissions, and test socket satisfaction in patients who received a lower-limb prosthesis with or without a test socket in our unit. MATERIAL AND METHODS A total of 88 patients (54 men, 34 women) were included in the study. Patients were divided into 2 groups: the group with test socket (Group I, 44 patients) and the group without test socket (Group II, 44 patients). Variables related to the functional ...

Heterogeneous modeling based prosthesis design with porosity and material variation.

The work proposes the development of heterogeneous bio-implants with the aim to minimize stress shielding effect and enhance bone ingrowth. Stress shielding in the implant can be minimized by reducing the overall stiffness of the implant, which is achieved here by varying the material based on stress distribution across the prosthesis. To increase overall stability of the implant by simultaneous enhancing osseointegration and reducing stress shielding, the work proposes the design of heterogeneous prosthesi...

Management of leaking tracheoesophageal puncture with hyaluronic acid injection.

Tracheoesophageal puncture (TEP) with voice prosthesis is a widely used technique for voice restoration in laryngectomy and pharyngolaryngectomy patients. Complications include leakage around the prosthesis or a persistent TEP postremoval of the prosthesis.

Recent trends in click chemistry as a promising technology for virus-related research.

Click chemistry involves reactions that were originally introduced and used in organic chemistry to generate substances by joining small units together with heteroatom linkages (C-X-C). Over the last few decades, click chemistry has been widely used in virus-related research. Using click chemistry, the virus particle as well as viral protein and nucleic acids can be labeled. Subsequently, the labeled virions or molecules can be tracked in real time. Here, we reviewed the recent applications of click reactio...


Preservation of femoral condyles in patients with knee disarticulation amputation (KDA) facilitates distal support inside the socket, compared to transfemoral amputation (TFA), and allows the direct transfer of weight-bearing loads toward residual limbs.

Bimodal ankle-foot prosthesis for enhanced standing stability.

Previous work suggests that to restore postural stability for individuals with lower-limb amputation, ankle-foot prostheses should be designed with a flat effective rocker shape for standing. However, most commercially available ankle-foot prostheses are designed with a curved effective rocker shape for walking. To address the demands of both standing and walking, we designed a novel bimodal ankle-foot prosthesis that can accommodate both functional modes using a rigid foot plate and an ankle that can lock ...

Transcatheter Aortic Valve Replacement for a Failed Mechanical Aortic Prosthesis.

The options for reoperation for a dysfunctional mechanical aortic prosthesis in a small aortic root may be limited for high-risk patients. We report a case where transcatheter aortic valve replacement was used through the open aorta on cardiopulmonary bypass in order to minimize operative duration and reduce the risk of prosthesis-patient mismatch in a Jehovah's witness with a failed 17-mm mechanical aortic prosthesis.

Oral implant osseointegration model in C57Bl/6 mice: microtomographic, histological, histomorphometric and molecular characterization.

Despite the successful clinical application of titanium (Ti) as a biomaterial, the exact cellular and molecular mechanisms responsible for Ti osseointegration remains unclear, especially because of the limited methodological tools available in this field.

Development of a patient-specific temporomandibular joint prosthesis according to the Groningen principle through a cadaver test series.

Patients suffering from osteoarthritis, ankylosis (e.g. post-trauma or tumour) in the temporomandibular joint (TMJ) can present with symptoms such as severely restricted mouth opening, pain or other dynamic restrictions of the mandible. To alleviate the symptoms, a total joint prosthesis can be indicated, such as the Groningen TMJ prosthesis. This was developed as a stock device with a lowered centre of rotation for improved translational and opening capacity. This study aimed to improve the design of the p...

Effects of hyperbaric oxygen treatment on implant osseointegration in experimental diabetes mellitus.

To evaluate whether hyperbaric oxygen (HBO) treatment has a favorable effect on implant osseointegration in diabetic rabbits.

Do CTA measurements of annular diameter, perimeter and area result in different TAVI prosthesis sizes?

Incorrect prosthesis size has direct impact on patient outcome after transcatheter aortic valve implantation (TAVI) procedure. Currently, annular diameter, area or perimeter may be used for prosthesis size selection. The aim was to evaluate whether the use different annular dimensions would result in the selection of different prosthesis sizes, when assessed in the same TAVI-candidate during the same phase of a cardiac cycle. Fifty consecutive TAVI-candidates underwent retrospectively ECG-gated computed tom...

Targeted muscle reinnervation and prosthetic rehabilitation after limb loss.

Over one million amputations occur annually world-wide. Often, amputation of the neoplastic limb is regarded as a surgical failure and the end of surgical care for the patient. Here, we highlight the advancements in extremity prostheses and surgical techniques that should change that mindset. Myoelectric prostheses, osseointegration, and targeted muscle reinnervation allow for more intuitive and easy to use devices, reduced pain, and greater quality of life for amputees.

The Diabetic Foot Amputation Decision-Making Process.

Diabetes has been the fourth leading cause of death in Taiwan since 2002 and is one of the top four most prevalent chronic diseases worldwide. Patients who have diabetic foot, as well as their families, are faced with the burden of possible limb amputation. The aim of this study was to explore the amputation decision-making process with patients with diabetic foot and their families.

Frequency of technical complications in fixed implant prosthesis: the effect of prosthesis screw emergence correction by CAD-CAM.

CAD-CAM technology permits the angular correction of screw emergence into the prosthesis, however there is lack of controlled clinical studies that assess the frequency of technical complications in angled screw channel restorations. This controlled clinical study was designed to assess technical incidences in angled screw channel restorations. Patients having implant prosthesis placed between November, 2014 and December, 2015 were screened. The patients were selected if they received prosthesis with up to ...

Controversial case: Revascularization of a popliteal vascular injury of poor prognosis.

Popliteal injuries are significant health risk that could induce permanent functional impairment, limb loss, and in some cases death. Currently, there is a controversy about the required treatment between amputation and a limb salvage surgery, which in some cases could cause more prominent functional impairment than the amputation. Different indicators help to predict, in some extent, the risk of amputation, however most of them were described two decades ago.

The revenue from finger replantation and revision amputation: Is it cost-covering?

Finger amputation injuries are frequently treated conditions in occupational accident hospitals. They are either treated by replantation or revision amputation. The costs of these two treatment options differ significantly. This study aims to determine if the revenue generated from the treatment of finger amputation injuries in the German DRG system is cost-covering and if there are differences depending on the type of health insurance.

Complex treatment of vascular prostheses infections.

Infections after vascular reconstructions are very rare; however, when they occur, they are associated with a high risk of morbidity. In order to obtain the best results possible, the treatment needs to be initiated as early as possible, from the very first signs of infection, and it needs to be carried out in centers specializing in vascular surgery. The aim of the present study was to assess the incidence of infections in a single university center.This retrospective analysis over a 2-year period is based...

The Antidepressant Drug, Sertraline, Hinders Bone Healing and Osseointegration in Rats' Tibiae.

Selective Serotonin Reuptake Inhibitors (SSRIs) are one of the most common antidepressant drugs. SSRI use is associated with increased risk of bone fracture and titanium implant failure. The aim of this in vivo study was to investigate the effect of SSRIs on osseointegration and bone healing.

Safety Studies for a 44-Channel Suprachoroidal Retinal Prosthesis: A Chronic Passive Study.

Following successful clinical outcomes of the prototype suprachoroidal retinal prosthesis, Bionic Vision Australia has developed an upgraded 44-channel suprachoroidal retinal prosthesis to provide a wider field of view and more phosphenes. The aim was to evaluate the preclinical passive safety characteristics of the upgraded electrode array.

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