Active clinical trials for "Osteoarthritis, Knee"

Introduction: Total knee arthroplasty (TKA) is an effective intervention to relieve people with osteoarthritis (OA). Nevertheless, 15 to 30% of patients continue to experience severe pain following surgery. Recent data suggest that central nervous system (CNS) changes may play a role in OA pain and possibly explain why some patients have poorer clinical outcomes following TKA. Objectives: Our main objectives are to explore the relationship between OA pain and (1) the integrity of corticospinal system, (2) the efficacy of descending pain inhibition circuits. Methods: Fifty-two patients waiting for TKA will be recruited. The integrity of the corticospinal projections will be measured using transcranial magnetic stimulation (recruitment curve of the affected quadriceps femoris muscle) and the descending pain inhibition circuits (bulbospinal projections) will be assessed by a counter-irritation paradigm (i.e., conditioned pain modulation with immersion of the arm in painfully cold water). Diffuse tension imaging (DTI) will also be used to quantify the strength of these corticospinal and bulbospinal projections. Clinical outcomes will be evaluated before and after arthroplasty with a series of validated questionnaires such as the WOMAC Scale, the McGill Pain Questionnaire and the Brief Pain Inventory. These different neurophysiological and clinical measures will be taken before surgery, 6 months after surgery and 1 year post-surgery. Anticipated results: The investigators expect a moderate association between pain and the strength of the corticospinal and bulbospinal projections. Moreover, it is expected that there will be a moderate association between the strength of the corticospinal/bulbospinal projections and the clinical evolution of patients.

PURPOSE: To investigate the natural time course of patient-reported outcomes after meniscus surgery and identify factors associated with good and bad outcome after surgery.

Bone quality is an important factor influencing the outcome of total knee replacement (TKR) surgery. Therefore, assessing bone quality preoperatively could help the surgeon in the choice of the most appropriate prosthetic implant. The primary goal of this study is to measure serum and tissue levels of some proteins involved in bone remodelling.

The purpose of this study is to assess the differences in functional and patient reported outcomes between total knee replacement (TKA) implants. In addition, this work will examine the correlation between functional assessments and patient reported outcomes following surgery. All subjects will complete assessments preoperatively, 4-6 weeks following TKA and then one year following TKA. Subjects will complete a series of patient reported outcomes as well as a series of functional outcomes at each of the time points of interest. The analysis will include a repeated measures design to determine differences between groups across time as well as correlations between the functional and patient reported outcomes. This work will hopefully determine the importance of using objective functional outcomes following TKA as well as determining the need for patient assessments out to one year following surgery.

This project is a prospective observational study that will involve the participation of 25 volunteers that qualify for having knee osteoarthritis, are going to be having gastric bypass surgery and are willing to participate in this study which is designed to last up to two years. Potential candidates will be interviewed using a standard set of questions related to the study

The goal of viscosupplementation is to replenish synovial fluid, which will improve patient symptoms and mobility. Viscosupplementation of the knee with hyaluronic acid injections has been shown to improve symptoms in patients with osteoarthritis. Recent studies have shown that this improvement may be highly variable based on the time from treatment, especially in the first 12 weeks following treatment. The purpose of this study is to document the outcomes following a treatment protocol in which corticosteroid is used in addition to the initial Synvisc injection in the series of three injections.

This multi-site, observational, prospective study aims to investigate current practice and associated outcomes for patients scheduled for elective unilateral total hip or knee arthroplasty in South Africa.This information will provide baseline values, against which effects of implementing a multidisciplinary enhanced care protocol for arthroplasty patients will be compared (the subsequent study).

Patients undergoing total knee arthroplasty will follow two different rehabilitation protocols. In one of them, they will start walking the day of surgery and discharged on a 48 hours basis. On the other one, start walking 3 days after surgery and discharged on a 96 hours basis. Outcomes will be satisfaction, pain, range of movement, incidence of DVT and overall complications.

This study proposes to experimentally manipulate pain catastrophizing in order to investigate the neural mechanisms by which pain catastrophizing influences the experience of pain among non-Hispanic Blacks (NHBs) and non- Hispanic Whites (NHWs) with knee osteoarthritis (OA). Therefore, participants will be randomized to either a single session cognitive-behavioral intervention to reduce pain catastrophizing or a pain education control group.

Prospective observational study of 6 months of follow-up, of national and multicenter scope with medical device with CE marking and according to the usual clinical practice. In addition, due to the observational design of the clinical investigation, no assignment of the patients will be made to any specific study group, but will be carried out in accordance with the usual clinical practice, not applying any intervention other than the usual one in this type of care practice and always in accordance with current clinical guidelines and recommendations and with the indications authorized in Spain. Patients will be recruited by specialists and will be followed for 6 months under the conditions of usual clinical practice.