Active clinical trials for "Osteoarthritis, Knee"

Removal of meniscal tissue is described to result in poor knee function and a significant risk for future development of osteoarthritis. Different implants have been suggested to substitute a removed meniscus. Meniscal allograft transplantation is not widely available due to costs and availability. The semitendinosus tendon is a known graft with biological properties with potential to remodel and revascularize in an intraarticular environment such as anterior cruciate ligament reconstruction. The objective for this study was to investigate whether the semitendinosus tendon graft could function as a meniscal transplant.

Osteoarthritis (OA) is the most common type of arthritis, characterized by pain and physical disability. More than 10% of persons > 55 years have symptomatic OA, primarily involving the knees. Knee arthroplasty is considered a successful orthopaedic procedure in progressed knee OA (KOA) with severe pain and disability where non-surgical treatments have been tried. It has long been recognized that injury to the body, either from trauma or surgery causes an inflammatory response. As TKA is considered a more invasive procedure compared with UKA, TKA and UKA may not trigger inflammatory reactions of the same magnitude. Differences in inflammatory response between TKA and UKA could help explain why differences in outcome are present, despite both procedures being technically successful. Even though knee arthroplasty is a very common and successful procedure, there are no existing studies comparing the invasiveness of TKA and UKA. As morbidity and mortality rates differ between the groups, the aim of this prospective cohort study is to investigate whether the post-operative inflammatory responses differ between TKA and UKA, and secondarily whether this difference can explain the difference in outcome between the two procedures. The investigators hypothesize that TKA generates a larger postoperative systemic inflammatory response compared with UKA due to more extensive periarticular soft tissue and bone trauma. The study's primary outcome is C-reactive Protein (CRP) measured in blood 24 hours after surgery (22-26 hours after surgery ~ day 1). Participants which are candidates for either a TKA or a UKA will through serial blood test measurement have their postoperative systemic inflammatory response measured. This further will be correlated to the clinical and functional outcomes over a 2-years postoperative follow-up period.

This study aims to compare the femoral external rotation measured on CT and MRI to that measured intraoperatively to clarify the influence of residual cartilage on posterior condyle on the preoperative planning of total knee arthroplasty.

The aim of this study was to analyze the coronal alignment of a large population of patients undergoing total knee arthroplasty using a modern classification of the knee phenotypes found in a population of non-osteoarthritic patients.

The aim of this observational study is to investigate if there is any difference in survival rate, clinical and radiological results after total knee replacement with vitamin E-blended polyethylene in comparison to conventional polyethylene at minimum 7-year follow-up

Patients who are to benefit from an injection of SYNOVIUM HCS as part of their care will be offered to participate in this study. Patients will need to sign a consent form to participate. Prior to SYNOVIUM HCS injection, patients will be asked a series of questions regarding their pain and disability. Data collected during follow-up visits can be compared to pre-injection data.

The purpose of this study is to compare cemented and cementless versions of the Triathlon total knee arthroplasty/replacement (TKA) in terms of clinical outcomes, perioperative course, and outcome scores including function and patient satisfaction. Patients who present to the clinical practices of Dr. Ryan Nunley, Dr. Robert Barrack, or Dr. Denis Nam and are suitable candidates for primary TKA will be screened for eligibility and invited to participate. Once enrolled participants will be randomized (1:1) to either receive a cemented or cementless Triathlon TKA. Data collected for the study will include standard of care clinical and radiographic evaluations collected during office visits and surgery, as well as study-specific patient questionnaires. Clinical, radiographic and questionnaire data will be collected pre-operatively, at the time of surgery, and at 6 weeks, 6 months, 1 year and beyond, and 2 years and beyond post-operatively. Patients will complete the following outcomes questionnaires preoperatively: New Knee Society Score, Oxford Knee Score, UCLA Activity Score, SF-12, and EQ-5D. The following questionnaires will be collected at four to six weeks, six months, one year and beyond, and two years and beyond postoperatively: New Knee Society Score, Forgotten Joint Score, Washington University Knee Satisfaction and Function Questionnaire, Oxford Knee Score, UCLA Activity Score, SF-12, and EQ-5D, and a Pain Drawing. In addition, a Pain Diary with a pain Visual Analog Scale (VAS) will be assessed once daily at home for 6 weeks after surgery.

Patient-related outcomes were originally designed to measure outcomes in clinical studies. They were not developed to predict outcomes, however, different studies showed close association between values achieved preoperatively and postoperative outcomes. The aim of the present trial is to identify patients with satisfactory and unsatisfactory outcomes after joint replacement and to investigate whether there are any potential predicting potential in preoperative results of the patient-related outcomes and if there exist other predicting factors for functional recovery or treatment failure after joint replacement surgery.

To determine if robotically-assisted UKA results in more consistent and improved component positioning and better patient reported outcome scores compared to manual TKA and MAKO TKA.

The Covid-19 pandemic has led to the postponement and cancellation of elective orthopaedic surgeries worldwide. These delays to elective procedures combined with ongoing demand have led to increasingly longer waiting list times. This cross-sectional pilot study aims to investigate the change in patients' perceptions of knee pain and function since being waitlisted for surgery. A bespoke survey will be administered to eligible patients over the phone from Trafford General Hospital, Manchester. The survey will also investigate the coping mechanisms and the preventative measures patients are taking to manage symptoms during the pandemic, and question what kinds of communication and support patient would like to be offered whilst waiting for treatment. This study will improve clinicians' and researchers' understanding of how patients are coping with symptoms during this pandemic, and provide information on how to better support patients who are waiting for knee surgery. This information could be used to enhance orthopaedic care during, and in the aftermath, of this pandemic. The information gathered in this study may also be used to inform a larger multi-centre study.