View clinical trials related to Osteoarthritis, Knee.
Filter by:This study aimed to analyze the effect of platelet-rich plasma (PRP) on knee osteoarthritis. Eligible patients will undertake arthroscopic knee surgery plus intraoperative PRP and also receive second look surgery and intraoperative biopsy.
As many as 20% of patients are unhappy with the results of total knee replacement (TKR). Various changes to surgical technique have tried to address this but have not led to a significant improvement in the numbers of patients satisfied with their operation. Recently, attention has focussed on alignment of the leg. When viewed from the front, a number of people do not start with a straight, mechanically aligned leg. Traditionally, when implanting a knee replacement, the surgeon tries to put the shin bone half of the knee replacement perpendicular to the floor to equalise stresses on the in and outside of the joint. However, this may result in the alignment of the leg changing considerably, straining the soft tissues around the knee and contributing to dissatisfaction with TKR. There has been a move by some surgeons to change practice, and to implant the TKR in a way that replicates the alignment of the patient's own original knee- alternative alignment. Studies looking at alternative alignment have not shown any loss of satisfaction with results of TKR and indeed are showing some signs that in the short term, function of the knee may be better with the new technique. The research team are planning to run a study comparing the knee replacement used in Exeter- the Triathlon- when put in place using traditional alignment versus using the alternative alignment methods. The outcomes will be assessed in various ways including patient satisfaction questionnaires, measuring muscle strength, flexibility around the knee, and by assessments of alignment of the new knee on X-rays and Computerised Tomography scans. The research team will look at short term results for satisfaction and function of the knee, and in the long term look at wear and survivorship to see if patient satisfaction with TKR can be improved.
This is a multi-center, randomized, double-blind, parallel group, active comparator controlled trial to evaluate the efficacy and safety of a single injection of Cingal for the relief of joint pain in subjects with OA of the knee.
Primary Objective: -To evaluate the efficacy of a single 6-milliliter (mL) intra-articular (IA) injection of Hylan G-F 20 measured by Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Numerical Rating Scale (NRS) 3.1 A1 score, in comparison to an IA placebo injection over 26 weeks, in Chinese participants with symptomatic Osteoarthritis (OA) of the knee. Secondary Objectives: - To evaluate the efficacy of a single 6-mL IA injection of Hylan G-F 20 measured by 7-day average score of WOMAC A1 pain sub-score in comparison to an IA placebo injection over 26 weeks. - To evaluate the efficacy of a single 6-mL IA injection of Hylan G-F 20 measured by WOMAC A, patient global assessment (PTGA) and clinical observer global assessment (COGA) in comparison to an IA placebo injection over 26 weeks. - To evaluate the response rate of a single 6-mL IA injection of Hylan G-F 20 in comparison to an IA placebo injection over 26 weeks. Response was defined as WOMAC A1 greater than or equal to (>=) 2-point improvement from baseline on NRS. - To evaluate the safety of a single 6-mL IA injection of Hylan G-F 20, in comparison to an IA placebo injection over 26 weeks.
This study investigates the potential of the ultrasound imaging technique to diagnose the severity of knee osteoarthritis (OA). In parallel, measurements will also be conducted using Magnetic Resonance Imaging (MRI) and histology analysis as reference tools.
Prolonged wound drainage after total hip or knee arthroplasty is a very undesirable complication, both from medical as patients view. Wound drainage prolongs hospital admission and is associated with an increased risk of infection (1) post-operative wound drainage of more than 48 hours is associated with an increased infection risk of 42 percent a day in hip arthroplasty and 27 percent a day in knee arthroplasty. (2) Patient organizations report that wound drainage is considered as one of the most undesirable complications. In our hospital, patients undergoing hip or knee arthroplasty are treated according to a "fast track" protocol, in most cases resulting in a hospital admission of only two days. This increases the chance that patient's release from hospital will be delayed due to wound drainage. The fact that our department recently started to perform hip and knee arthroplasty in a daycare setting increases this chance substantially. In hemiarthroplasty of the knee, tissue adhesive was used in addition to conventional wound closure techniques with monocryl sutures. Resorbable monocryl sutures were used so that the usual visit to our outpatient department to remove the sutures was no longer necessary. However, we experienced an increase in wound drainage and complications using only monocryl. The addition of a tissue adhesive decreased the post-operative wound complication drastically. This in mind, we started to use tissue adhesive in regular hip and knee arthroplasty as well. With tissue adhesive in addition to conventional staples, we noticed good results. These results however, were subjective and not officially recorded. In a previous study, good results are reported in decreasing wound drainage with the use of a tissue adhesive in addition to staples. Clinical relevance was not reported and the study design lacked a cost-effectiveness analysis (3) The increase in cost for the use of the tissue adhesive involved was noted by our board of directors. Because lack of a clear medical of financial benefit, we were asked to minimize the use of tissue adhesive, resulting in usage of tissue adhesive solely in a day care setting, which comprises only 5 to 10 percent of our treated population. Previous study reported a decrease in post-operative wound drainage when tissue adhesive was used in addition to staples in knee arthroplasty. However, no financial benefit is known, therefore this treatment has not been accepted into daily practice. In our department, prolonged hospital admission due to wound drainage is not found to be uncommon. Our hypothesis is that the addition of tissue adhesive in wound closure after hip and knee arthroplasty will significantly decrease post-operative wound drainage, leading to a reduced number of admission days. In addition, we expect less patients to return to our outpatient clinic for non-regular visits due to wound complications. Expensive bandages are used in our standard treatment protocol. Less wound drainage would mean less bandages. All these things combined will lead to a reduction in overall health care costs
This is a phase 3 randomized study to confirm the efficacy of an intra-articular injection of Ampion™ in adults with pain due to severe osteoarthritis of the knee.
This is a two-phase multicenter, double-blind, randomized, prospective evaluation of intra-articular injection(s) comparing APS to intra-articular HA injection(s). The maximum study duration for each subject will be 62 months; 60 months from treatment to last follow-up, and two additional months if the maximum visit window is realized. A total of 246 patients will be enrolled. These patients will meet specific inclusion and exclusion criteria, but can be generally characterized as patients with painful unilateral knee OA who have been unable to achieve satisfactory pain relief with previous conservative OA treatment.
The aim of this study is the evaluation of new MRI tractography maps for early knee osteoarthritis assessment.
Osteoarthritis (Osteoarthritis) of the knee is a high prevalence in the population of people aged 60 years and over, when in some cases does not cause any discomfort or pain, and therefore not diagnosed. In addition, Radio graphic findings of the knee not fully compatible with the patient's symptoms, which resulted in errors in the interpretation and diagnosis. In this study, patients who suffer from two knees or unilateral pain, will take part. Participants will undergo a clinical examination, including evaluation of symptoms by an orthopedist and an X-ray imaging, which are part of the currently accepted medical diagnosis. Patients will perform PET-MRI test in order to assess whether PET MRI is a more efficient tool for active knee osteoarthritis diagnosis.