View clinical trials related to Knee Prosthesis.
Filter by:The goal of this observational study is to learn about the frequency of ATTR amyloid, cardiac involvement and associated features, in 150 patients aged 50 or more years, and operated for an idiopathic carpal tunnel syndrome, lumbar spine stenosis or total hip or knee arthroplasty for primary osteoarthritis. The main questions to be answered are: 1. What is the frequency of ATTR deposits in samples retrieved during surgery? 2. What is the frequency of cardiac involvement in ATTR positive patients? 3. What are the preoperative predictors of ATTR deposits? Participants will - have operative samples stained by Congo red in search of amyloid, which will be typed by immunochemistry in positive samples, - undergo a multimodal imaging search for cardiac involvement, if ATTR is identified, - undergo a preoperative complete clinical examination, including collection of medical history, ECG, biochemical tests, and imaging (ultrasound scans of rotator cuff and hip capsule in all participating patients, of the carpal tunnel in patients operated at this site, and MRI + standing profile radiography of the lumbar spine, in patients operated for lumbar stenosis) - ATTR positive patients will be proposed to be followed-up by a reference center, with the aim of an early diagnosis of cardiac involvement, allowing efficient mamagement. Researchers will assess the frequency of ATTR deposits at each operated site, the frequency or ATTR cardiopathy in ATTR + patients, and will compare demographic, clinical, biochemical, and imaging features in patients with and without ATTR deposits, to guide the indications of pathological examination during these frequent orthopedic surgeries
Total knee prosthesis (TKP); It is a surgical treatment used in the management of functional limitations and severe pain occurring on the degenerated joint surface as a result of rheumatoid arthritis, osteoarthritis, posttraumatic arthritis and other nonspecific arthritis. Nursing care is of great importance in the success of TKP surgery. Reducing pain, preventing complications, increasing self-care ability, and improving the quality of life by improving postoperative knee functions are the main goals of postoperative nursing care. In order to achieve these goals, patients and their relatives need to receive training on home care in the post-operative period before discharge. With the increasing use of mobile technologies in daily life and the increasing adoption of e-health, the opportunity for people to improve their self-management skills through e-health is increasing. Mobile Health (m-Health) provides convenience in many areas such as educating the public, warning about potential diseases and disease risks, and communicating with messages, notifications and video when necessary. It also affects the way nursing services are delivered and provides great benefits in the delivery of nursing services. For all these reasons, it was aimed to examine the effect of mobile application-supported care given to patients with total knee prosthesis on functional status and self-care ability.
It will consist of a randomized clinical trial with a control group. The sample will be distributed as homogeneously as possible into two groups, which will be randomly divided into a control group, to which the usual general treatment will be applied, and an experimental group, which will be treated with the NESA XSignal device. During the procedure, the subjects will continue to receive the usual care routine.
This is a prospective multicenter cohort study to evaluate the prognostic value of new biological markers in predicting thrombotic events after orthopedic surgery. According to the inclusion and non-inclusion criteria below, the study will include 387 major subjects who will undergo first-line total knee replacement and will receive the same standard prophylactic treatment: anticoagulation with Lovenox® (enoxaparin) 4000 IU/d subcutaneously 6 to 8 hours postoperatively and then daily for 15 days in combination with compression stockings.
This study was conducted to examine the effects of pressurized cold applicatıon for patients total knee prosthesis surgery.
The numerical ratio between the value of the thrombin generation test performed without soluble thrombomodulin and the value of the thrombin generation test performed in the presence of soluble thrombomodulin, performed pre-surgically, could predict the risk of early venous thromboembolism after placement of total hip or knee prosthesis.
Evaluate the pharmacokinetic profile of tranexamic acid injected intra-articularly with or without adrenaline, in a population of patients undergoing knee replacement.
Unicompartmental knee replacements are performed to treat osteoarthritis or osteonecrosis of the knee especially when it affects only the medial femoro-tibial compartment. To place the prosthesis, bone removal is necessary. The orientations of the bony cuts directly influence the position of the different elements of the prosthesis and the limb alignment. It is known that good positioning of the prosthesis is the key of a good survival of the implants. To guide the blade of the saw, cutting guides are used. The position of these guides gives the final position of the cuts. At present, two main techniques are used to position the guides: the conventional one, not very costly but not very accurate, and the navigated procedure, which is more accurate but also more expensive and more invasive. Since few years, patient specific cutting guides are used in total knee replacement with encouraging results and more recently in uni compartmental knee replacement with no scientific proof of efficiency. This study aims to validate the procedure of patient specific cutting guides.
This study will compare the kinematics data collected from patients with implants created by different manufacturers to see which of these implants provides a more normal-like kinematic pattern compared to the normal knee.
Utilize previously developed mathematical model to determine in vivo knee mechanics (kinematics, forces, stresses, areas and sound) for subjects having a Sigma Posterior Stabilizing (PS) mobile bearing (MB) total knee arthroplasty (TKA). There are several hypotheses for this study, although the most prominent is: Subjects having a Sigma RP PS TKA will experience polyethylene bearing rotation at 10 years post-operative, similar to their previous evaluations at six months, two years and five years.