Active clinical trials for "Osteoarthritis"

This is a pilot diagnostic accuracy study conducted to assess the diagnostic ability of a novel APD for auricular point detection among patients with knee osteoarthritis (KOA), as compared with an already commercialized device.

This study is post-marketing surveillance of Invossa K injection in patients with osteoarthritis.

Osteoarthritis of the trapeziometacarpal joint (TMJ), also called rhizarthrosis is a common disease, mostly affecting post-menopausal women. Intra-articular therapy with hyaluronic acid (HA) was usually recommended as a second-line treatment after failure of non-pharmacological modalities, only in early stages of the disease .Aim of the present observational, retrospective, comparative study is the assessment of the efficacy and tolerability of i.a. injections of an hybrid HA formulation (Synovial H-L®) in comparison to triamcinolone in patients with TMJ Osteoarthritis (OA). We are analyzing the records collected in the departmental archives of outpatients affected by TMJ OA, according to the ACR criteria for the classification for hand OA and who were treated with i.a. Sinovial H-L or triamcinolone acetonide from December 1st, 2015 to December 1st 2016.The patient's assessment of spontaneous hand pain on a 0-100 mm VAS with 0 representing the absence of pain and the FIHOA score validated in Italian language were routinely recorded and documented in our centre prior to the injections (T0), at the time of the second i.a. administration (T1), after one month (T2) and after 3 (T3) and 6 months (T4) following the i.a. therapy. The primary outcome criteria of our study is the change of VAS and FIHOA from baseline to the end of treatment. Furthermore, we chose as secondary outcomes the duration of morning stiffness, the Italian version of Health Assessment Questionnaire (HAQ) and the validated Italian version of the Medical Outcomes Study 36-Item Short Form (SF-36) routinary registered in our medical record before the i.a. therapy, at the end of the treatment and after 1, 3 and 6 months. The chi square test, t test or Kruskal-Wallis test, as appropriated, will be used to evaluate differences between groups before i.a. treatment the clinical and demographical data. Mixed-effects linear regression models will be used to evaluate temporal trends and differences in the two groups for specific outcomes: VAS pain, VAS stiffness, FIHOA and PCS and MCS from SF-36 questionnaires. In these types of statistical models, the effects of the covariates and their standard errors are correctly estimated taking into account the hierarchical structure of the data (i.e., patients and visits). For the compute of SF-36s Z score will be used mean and SD of U.S. general population. Data analysis will be performed using Stata vers 13.0 software. Descriptive statistics will be used to summarize data as frequencies (categorical variables) or mean +/-SD (continuous variables) as appropriate. P values <0.05 is considered statistically significant.

Studies have reported that the patient's psychological state such as anxiety, depression and other emotion affect the therapeutic effect of osteoarthritis, also may be the important reason for the poor knee joint osteoarthritis efficacy. The aim of this study are firstly to investigate the depression status of patients with osteoarthritis. Secondly, the study will aim to assess whether osteoarthritis progression will affect depression status, ultimately, provide reference for clinical.

Total replacement of hip joint is one of the most important medical innovations of the twentieth century. More than 100,000 hip replacements are being laid each year in France. Improved fixation, reduced wear rates and reduced implant dislocation rates remain subjects of continuous improvement. Hip implants cemented and cementless are part of therapeutic arsenal of orthopedic surgeons for joint replacement of the defective hip. The anchor and friction torque are both essential to the survival of hip implants. Therefore acetabular implants without cement with ceramic insert or polyethylene in a metalback or full polyethylene coated with titanium grains without metalback are proposed, but they have their own complications (Squeaking, fractures, recovery difficulties, difficult radiographic analysis, high cost for ceramics, primary stability defects, instability of the instrument set, Titanium residues in absence of metalback. An alternative to these implants may be an acetabular component without cement with polyethylene insert with an end metalback to increase both polyethylene thickness and size of the head in order to expect a low complication rate with important longevity for a lower cost. This study was conducted to ensure the safety and effectiveness of the acetabular implant "POLYMAX"

Persistent pain and joint stiffness after surgery may interfere with recovery and adversely affect quality of life in up to 40% of patients who have undergone total knee arthroplasty. There is growing evidence that inflammation as well as other medical and psychological factors may be associated with osteoarthritis severity, progression, and associated pain severity. This study aims to identify clinical, biological, and psychological factors that contribute to and predict the development of these complications. Identification of such factors may allow us to target preventative measures to the patients at highest risk of persistent postoperative pain and joint stiffness.

This retrospective study will investigate the changes that occur in ultrahigh molecular weight polyethylene (UHMWPE) implants that have been retrieved from joint replacement patients. Analysis techniques will include Fourier Transform Infrared Spectroscopy (FTIR), Differential Scanning Calorimeter (DSC) and crosslink density measurements. Crosslink density measurements will be evaluated as a function of distance away from the articular surface and the rim of the implant. Gel and hydroperoxide contents will also be evaluated. The objective is to characterize the in vivo and ex vivo changes that occur with cross-linked and conventional polyethylene bearings sterilized by methods that do not involve radiation. The investigators hypothesize that polyethylene absorbs lipids in vivo but experiences negligible oxidation or reductions in polymer crosslinking until it is explanted and stored at room temperature with access to ambient air.

Post-operative pain following total knee replacement can be disabling and sometimes lead to the need for prolonged hospital stay. Therefore development of improved post-operative modalities for total knee replacement surgery pain control is important. High-resolution ultrasound (US) allows accurate visualization of nerves and surrounding structures and can lead to higher success rates of nerve block. The investigators aim at comparing the analgesic efficacy of ultrasound-guided nerve block catheter compared with epidural analgesia for patients with knee OA who underwent unilateral total knee replacement.

The objectives of the study are twofold: 1) Evaluate how intra-operative sensing may assist the surgeon with tibiofemoral rotational alignment by testing the precision and variability of setting tray rotation to the mid-third of the tibial tubercle. 2) Understand if patients with a combined axial rotation couple at the tibiofemoral joint and quantitative intercompartmental balance, achieved with the use of VERASENSE, exhibit less post-operative knee pain and improved clinical outcomes. Radiographic outcomes will also be assessed to measure post-operative alignment and to evaluate the prevalence and location of radiolucency and/or osteolysis.

Making the diagnosis underlying a painful, swollen joint currently involves aspiration followed by numerous microbiological and biochemical laboratory tests. This can be costly, time consuming and in the case of an acutely swollen joint, lead to a lengthy inpatient admission. There is an unmet need to provide a quick, easy, reliable dipstick like test to analyse joint fluid in the community, clinic, or emergency department setting. The investigators aim to use well established metabonomic techniques to: Analyse fluid from patients with swollen joints Identify potential biomarkers of inflammatory, infective and osteoarthritic causes of joint swelling Correlate this with lubrication and wear properties of the fluid The long term goal is to develop time saving, cost effective, non-invasive diagnostic tests to improve management of a swollen joint. The biomedical research centre at Imperial provides a unique and unparalleled clinical and scientific environment to conduct this research. The Imperial College division of Computational and Systems Medicine has an international reputation in metabonomics and this, together with the high volume of patients with swollen joints treated at Imperial National Health Service Trust (c1000/yr) ensures that the study can take place in an environment conductive to success.