View clinical trials related to Necrosis.
Filter by:This study aims to evaluate the return to activity in younger patients under 50 years old after undergoing either total hip replacement (THR) or hip resurfacing, as performed in everyday practice. This research will be observational, meaning patients will not be randomly assigned to different treatment groups. To objectively assess participents; return to everyday, professional, and sports activities, validated questionnaires will be sent to participents in addition to routine clinical practice. The study will be prospective and comparative based on the type of prostheses used. In order to capture the current practices of surgeons performing THR in participents under 50 years old in France, the study will be conducted at multiple centers across the country. Since hip resurfacing is performed only in certain centers, approximately half of the participating centers are experienced in this technique. Participents typically resume activity between 3 and 6 months after THR. One year of post-operative follow-up allows for an accurate assessment of participents; recovery, unaffected by the surgery. Participents ; physical activity levels will be evaluated using the UCLA Activity Scale developed by surgeons to assess the activity levels of patients undergoing hip and arthroplasty.
This is a Humanitarian Device Exemption (HDE) approved device. The purpose of this study is to evaluate the continued safety and probable benefit of the restor3d Total Talus Replacement device in commercial use.
Clinically compare the post-operative pain , incidences post-operative swelling , post-operative number of analgesic tablets taken by patient and amount of bacterial load reduction after using 50% Commiphora Myrrh Chemomechanical preparation , versus 2.5% NaOCl,in asymptomatic necrotic mandibular premolar treated in single visit.
Root canal preparation is one of the most important stages in root canal treatment. Nowadays, the use of Nickel-Titanium(Ni-Ti) rotary instrument systems for root canal expansion is becoming very popular. The force required to rotate the Ni-Ti file is defined as the torque force and is considered a parameter for the stress produced within the canal. Ni-Ti rotary instruments can be used with a wide speed scale between 150 rpm (rotary per minute) and 40,000 rpm in conventional endodontic engines. Low torque and speed values mean low pressure applied by the instruments in the root canal. With low forces and vibrations, motor noise is generally negligible, and the instruments can easily shape most root canals in a reasonable amount of time and with minimal mechanical stress (in medium-easy canals). The use of lower torque values has been shown to reduce cyclic fatigue of Ni-Ti rotary tools. With reduced cyclic fatigue, the risk of instrument breakage in complex root canal morphologies is minimized and complications that may occur during root canal treatment are reduced. However, with low torque and speed values, cutting efficiency decreases and the process time increases as the instrument advances in the canal and during possible treatment. Decreasing cutting efficiency may also result in the operator applying force to move through the canal. With the applied force, the friction resistance within the canal increases and the heat produced increases. For this reason, it is thought that the risk of post-operative pain may increase during or after the procedure. The aim of this study is to investigate the incidence of post-operative pain and procedure time using the visual analog scale (VAS) among groups where low torque and speed values were applied during the use of the Ni-Ti rotary instrument system.
The goal of this clinical trial is to learn about clinical usefulness of double pigtail plastic stents during endoscopic transmural drainage of post-inflammatory pancreatic and peripancreatic fluid collections with use of lumen-apposing metal stents (LAMS). The main question it aims to answer is: Does introduction of double pigtail plastic stents through the LAMS increases efficacy and safety of endoscopic transmural drainage of post-inflammatory pancreatic and peripancreatic fluid collections?
Osteonecrosis of the femoral head (ONFH) is a debilitating musculoskeletal disease that is characterized by localized death of bone cells and associated cellular elements within the subchondral bone. If it progresses, it results in the collapse of the femoral head (ball part of the hip) giving rise to secondary arthritis. This condition is associated with marked pain and loss of function, often necessitating a joint replacement. Due to the relatively young age of onset of ONFH (often in 20s and 30s), there is great interest in utilizing joint-preserving procedures prior to the need for joint replacement. Joint-preserving procedures include core decompression (CD) with and without bone grafts or cells, vascularized and non-vascularized bone grafting, as well as osteotomies. Inconsistent results for each of these procedures have been reported and there are no Clinical Practice Guidelines or medical community consensus opinions regarding the treatment of early-stage ONFH. The hypothesis to be tested is "Participants who have early-stage ONFH undergoing CD augmented with autogenous bone marrow aspirate concentrate will have better clinical and radiological outcomes than CD alone." This multi-center randomized controlled trial for early-stage ONFH is prospective and controlled for participant stage (only early-stage pre-collapse individuals) and surgical technique. Participants will be evaluated as per routine surgical follow-up, and at 6 months (telemedicine), 1- and 2- years using radiographs, MRIs, and questionnaires. This project will also explore the scientific basis for success vs. failure in individuals who have osteonecrosis, and have different demographics and bone marrow aspirate cell profiles.
The aim of this study is to assess the effect of V. nilotica extract solution versus 2.5% NaOCl on the intensity of postoperative pain and the amount of bacterial load reduction.
The purpose of this study is to discover the potential convenience and ease of using a Magnetic Resonance Imaging (MRI) technique, named Magnetic Resonance Fingerprinting (or MRF), to achieve high-quality images within a short scan time of 5 min for viewing the entire brain. This is an advanced quantitative assessment of brain tissues. This method is being applied with IVIM MRI to be able to tell the difference between a brain with radiation necrosis and a brain with tumor recurrence. Participants will consist of individuals who have received radiation therapy in the past and were diagnosed with radiation necrosis, individuals with recurrent tumors, and healthy individuals who have no brain diseases and have not had radiation treatment to the brain. Participants will undergo an MRI scan at a one-time research study visit; no extra tests or procedures will be required for this research study. The primary objectives of this study are: - To demonstrate the clinical feasibility of combining MRF with state-of-the-art parallel imaging techniques to achieve high-resolution quantitative imaging within a reasonable scan time of 5 min for whole brain coverage. - To apply the developed quantitative approach in combination with IVIM MRI for differentiation of tumor recurrence and radiation necrosis.
A total of 64 primary molars of 5-8 years old children will be randomly selected from Pediatric dental clinic at Faculty of Dentistry, Mansoura University. Children will have two bilateral carious primary molars indicated for pulpectomy ; One side will be treated in one visit and the other will be treated in two visits. Clinical and radiographic evaluation for 3 , 6, 12 months
A prospective, single-arm, intervention study of oral alendronate in adults with sickle cell disease and osteonecrosis