View clinical trials related to Total Hip Arthroplasty.
Filter by:This study had four aims: 1. To evaluate the correlation between the planned preoperative cup size and the actual cup size that was implanted in surgery. 2. To examine the absolute difference between the implanted cup size diameter and the actual femoral head size diameter. 3. To examine the absolute difference between the planned cup size diameter and the actual femoral head size diameter 4. To suggest an additional online monitoring tool on the accuracy of the preoperative process and implant selection. We hypothesized that high accuracy rates will be found between the preoperative planned cup size and the actual implanted cup size. Furthermore, we hypothesized that strong correlations will be found between the planned and actual implanted cup size and the actual femoral head diameter size.
Clinical and radiological 2 years results of TRJ® Hip Stem.
The study aims at comparing the effect of hollow or solid centralizer designs on the long time fixation behaviour of hip prosthesis stems that are polished, tapered and collarless. In a prospective, controlled and randomized study comprising two groups of 30 patients/hips each, the patients will be followed up by RadioStereometric Analysis (RSA) for ten years. In completion general health questionnaires as well as hip specific scoring instruments will be used to evaluate patient satisfaction and outcome.The hypothesis of the study is that the different centralizers will result in different migration patterns of the stems, which might affect the risk for late aseptic loosening.
The purpose of this clinical study is to evaluate blood metal ion levels as a function of time of implantation for the ASR-XL MoM system.
Total Hip Arthroplasty (THA) is one of the most commonly performed orthopaedic operations worldwide. The main aim is overall improvement in levels of patient pain and mobility. Such surgery involves implantation of both an acetabular and femoral component. With the patient in the lateral decubitus position, the Orthopaedic Surgeon assumes that the pelvis is in a neutral position with respect to all three body planes at the time of acetabular component implantation. With regard to THA, the current orthopaedic literature demonstrates a clear relationship between acetabular component positioning, polyethylene wear and risk of dislocation. Problems with edge loading, stripe wear and squeaking are also associated with higher acetabular inclination angles, particularly in hard-on-hard bearing implants. The important parameters of acetabular component positioning are depth, height, version and inclination. Control of acetabular component inclination, particularly in the lateral decubitus position, is difficult and remains a challenge for the Orthopaedic Surgeon. Accurate implantation of the acetabular component within the 'safe zone' of radiological inclination is dependent on: - Operative version - Operative inclination - Pelvic position (Primarily, but not exclusively, abduction / adduction.) This study aims to investigate the effect of patient pelvic positioning and method of acetabular component insertion on acetabular component inclination during Total Hip Arthroplasty (THA).
The purpose of this clinical study is to evaluate blood metal ion levels as a function of time of implantation for the Pinnacle Acetabular MoM system.
To determine if patients who receive an 8 week, comprehensive, multi-component rehabilitation program (CMC) have better strength and functional performance compared to a control group (CON). The investigators hypothesize that functional performance and strength in the muscles surrounding the hip and the knee will be greater in the multi-component rehabilitation group compared to the control group.
Patients post total hip arthroplasty (THA) remain at high risk of developing Deep Vein Thrombosis (DVT) during the recovery period following surgery despite the availability of effective pharmacological and mechanical prophylactic methods. The use of calf muscle neuromuscular electrical stimulation (NMES) during the hospitalised recovery period on this patient group may be effective at preventing DVT. However, the haemodynamic effectiveness and comfort characteristics of NMES in post-THA patients immediately following surgery have yet to be established. The main objectives are: 1. To establish if patients in the early post-operative period have tolerance for NMES. 2. To determine if applying NMES to patients immediately post-THA increases venous outflow from the lower limb over resting conditions.
Follow up study of patients, who despite periacetabular osteotomy, need a total hip arthroplasty, to see outcome.
The effects of topical application of 3g tranexamic acid for 2 hours prior to opening of the suction drain following a total hip replacement