View clinical trials related to Avascular Necrosis.
Filter by:This post market clinical follow-up study is designed to confirm safety and performance of the Sidus Stem-Free Shoulder when used in hemi or total shoulder arthroplasty. The safety of the implant will be evaluated by monitoring the frequency and incidence of all kinds of adverse events. The performance will be determined by analyzing the implant survival, overall pain and functional performances (based on Constant & Murley score and ASES score), subject quality of life (EuroQol EQ5D) and radiographic parameters (e.g. radiolucencies, osteolysis, component migration) of study subjects who received the Sidus Stem-Free Shoulder. The Sidus Stem-Free Shoulder is not approved for use in the US.
This study is intended to gather medium (0-5 years) and long-term (6-10 years) information regarding the performance and safety of the commercially available Ceramax™ Ceramic on Ceramic Total Hip System. This is a two-phased study consisting of a clinical follow-up phase and a clinical outcomes phase. In Phase One (0-5 years), diagnostic, demographic and operative information will be gathered for each subject enrolled in this study. In addition, Harris Hip Evaluations, subjective evaluations and radiographs will be completed annually. In Phase Two (6 - 10 years), a subjective outcomes questionnaire and a SF-12 Health Survey will be mailed to subjects annually.
The purpose of this study is to monitor the performance of the DeltaMotion cup system in the treatment of patients with hip joint disease requiring a total hip replacement.Patients who enter the study will be evaluated at regular intervals following hip surgery using patient, clinical and x-ray assessments.
The objectives of this study are to obtain survival and outcome data on the Trabecular Metal Humeral Stem when used in primary, total or hemi shoulder arthroplasty.
The objectives of this study are to obtain survival and outcome data on the Trabecular Metal Reverse Shoulder System when used in primary or revision reverse total shoulder arthroplasty.
The investigators aim to measure the blood levels of certain metals in a group of patients all of whom have had a ceramic on metal total hip replacement. This new bearing surface (joint) is relatively new and the investigators are currently following up the largest cohort in the world. Clinical results are currently excellent at 2 years in all patients, however the investigators are mindful of the lessons learned from the high failure rate of several designs of metal on metal hip replacements as well as several in vitro reports and one in vivo case report of elevated metal levels in this particular implant. The investigators feel it is important to measure the metal ion levels in our group to ascertain and compare these with reference standards. Once performed the investigators can relate ion levels to function and x ray changes and provide useful longterm data to the patients and the wider medical community as to whether this bearing surface is safe in the long term or whether it's use should be abandoned. This is useful as there are numerous groups implanting this device in the UK and in addition it has just been awarded FDA approval in the USA - its use is likely to flourish.
This trial will evaluate the 36mm or greater metal head on metal hip system and compare it to the 32mm or 28mm metal head on polyethylene (liner) hip system in patients receiving a primary cementless total hip replacement.
This is a prospective, multi-center, non-randomized, non-controlled study designed to obtain survival and outcome data on the Continuum Metal on Polyethylene Acetabular System when used in primary total hip arthroplasty.
This is a monocentric, prospective, randomized clinical survey to verify if the periprosthetic remodelling brought about either the AMIStem or the Quadra femoral component is equivalent.
The purpose of this study is to monitor the performance of the DePuy PROXIMA™ hip in the treatment of patients with hip joint disease requiring a total hip replacement. Patients who enter the study will be evaluated at regular intervals following hip surgery using patient, clinical and x-ray assessments.