Active clinical trials for "Osteoarthritis, Hip"

80 patients eligible for a total hip replacement (THR) mainly due to primary osteoarthritis were recruited from the waiting list for hip arthroplasty at a university hospital in Sweden. The patients were randomized to either CFP or Corail stem, both groups received Delta cup from Lima. Randomisation was done using envelopes. Patients could only participate with one hip. Patients are evaluated with different questionnaires, radiographs and RSA analysis.

Ostearthritis is a great source of pain. In symptomatic hip the pain can lead the major disability and poor quality of life. Understand the musculoskeletal factores can lead to a better clinical management. The muscle strenghening of posterolateral complexo of hip is a important consideration. General Objective: Perform a Kinetic analysis 2D using na anterior wedge. Specific objective: Analyze the influence of posterolateral hip complex. Controlled clinical trial, composed by 30 individuals with and without osteoarthritis of hip e will be used a tools; Analogic Visual Scale, manual dynamometry to analyze force and kinetic analyze of gait through of Myovídeo analysis software.

The uncemented Symax hip stem is developed through optimization of the uncemented Omnifit hip stem. The Symax stem design combines an anatomical anteverted proximal geometry with a straight distal section. The proximal part is coated with a biomimetic hydroxyapatite (HA) coating for improved osseointegration to enhance load transfer and to minimize proximal bone loss. The distal part is treated with an anodization surface treatment in order to prevent distal bone apposition, which is expected to prevent distal loading and reduce proximal stress shielding. Aim of this study is to report mid-term clinical performance and evaluate whether the radiographic features are in line with the design principles of the Symax hip in an international clinical study with 5 years of follow-up.

Background Recently published studies confirm that preheating of femoral component enhances shear strength of implant-cement interface. Both Iesaka et al 2003 and Jafri et al 2004 showed reduction in cement porosity on cement-implant interface with preheated femur components. We will use the radiostereometry analysis (RSA) to investigate how the preheating of femur component influence on prosthesis survivorship. There are no clinical controlled studies performed to the date. The aim of the study Comparison of the migration rates between preheated and non-preheated femur components, analyzed with RSA. Methods Randomization of 80 patients into 2 groups with 40 in each. All patients will undergo standard hybrid total hip replacement. In group one the femur component (Bi-Metric, Interlock Biomet) will be preheated to 40 degrees of Celsius before cementation. In group two: the control group, the femur component will be of room temperature. We will measure the temperature at cement bone interface during the operation with use of thermocouple electrodes inserted through separate drill hole in the femur. The measurements will be recorded every 10 seconds. The patients will follow the standard postoperative rehabilitation program. The RSA analysis will be performed the first day after the operation and at 3, 12, 24 months postoperatively. The Dual-energy X-ray absorptiometry scanning (DEXA) of the femur will be performed at the first week after the operation and at 12 and 24 months postoperatively. The patients will be followed both clinically and radiologically at 1 and 2 years after the operation (Harris Hip Score). The results will be expressed as mean + SD (in mm). ANOVA statistical analysis will be used to confirm the differences between the groups.

Methods to reduce the revision rate of total hip arthroplasties (THAs) because of wear-related issues are important to examine, particularly because younger patients have a disproportionately high risk of revision. The investigators hoped to follow up patients and see if long-term Harris hip scores and WOMAC scores better in younger patients with a ceramic-on-ceramic (COC) THA compared with those with a ceramic-on-highly-cross-linked polyethylene (COP) THA.

Patients will be randomised to either operation with a Corail stem or a SP-CL stem. The groups are examined with RSA, conventional x-rays, PROM-data and DXA. First evaluation will be done at two years.

The purpose of this trial is to evaluate a new method of applying hydroxyapatite coatings on cement-less femoral stems.

The purpose of this randomised prospective multicenter longterm study is to evaluate the survival rate of the implant, wear and periprosthetic osteolysis of highly cross-linked polyethylene with and without addition of Vitamin E (UHMWPE-XE vs. UHMWPE-X) in Total Hip Arthroplasty.

The purpose of the present study is to examine whether an intervention plan based on exercise through remote rehabilitation system leads to improvement in characteristics of walking and balance among patients after hip replacement surgery compared to the current conventional way of exercise among these patients.

The purpose of this research is to determine if post-operative cognition will be better if the general anesthesia for surgery is done with an inhaled (gas through a breathing tube) or intravenous (medicine injected in the IV) general anesthetic technique.