View clinical trials related to Necrosis.
Filter by:To demonstrate the safety and efficacy of the Cormet Large Diameter Metal on Metal (LDMOM) Total Hip System using a composite clinical success (CCS) primary endpoint.
The purpose of the study is to assess the long-term performance of the NexGen LPS-Flex Mobile Bearing Knee in the treatment of patients with severe knee pain or degenerative knee disease.
Long-term follow-up of IDE patients for publication
Aseptic non traumatic osteonecrosis (ON) is a painful disorder of the hip which often leads, in its final stage, to femoral head collapse and subsequent total hip replacement. Core decompression of the hip is the most widespread procedure used to treat early stage ON of the femoral head. Notwithstanding the fact that this procedure has been employed for more than three decades (2), its efficacy remains controversial (3;4). Recently, one suggested that ON might be a disease of bone cells and/or of mesenchymal cells. The levels of activity and the number of mesenchymal stem cells in both the hematopoietic and in the stromal compartments of the bone marrow have been shown to be depressed in patients with ON of the femoral head (9). The investigators have showed previously that the capacity of osteoblastic cells to replicate was decreased in the proximal femur of patients with ON of the femoral head (10). This finding raised the possibility that bone marrow containing stromal cells which have many of the characteristics of stem cell for mesenchymal tissues including bone could be implanted into the necrotic lesion of the femoral head.
Evaluate the safety and efficacy of the CeramTec Acetabular Alumina Insert and CeramTec Alumina head when used with the Foundation Porous Coated Acetabular Shell and an Encore hip stem.
A clinical Evaluation to determine metal ion release from 4th generation metal-on-metal hip articulating surfaces in cementless total hip arthroplasty.
This study compares the posterior approach to the anterolateral approach using the ReCap® Total Hip Resurfacing System.
The primary objective of this study is to evaluate the performance of the Cormet Hip Resurfacing implant system in the post-approval environment.
primary endpoint of this Study is maintenance of "at least good clinical status" for a period of 10 years following initial implantation among Cormet procedures enrolled inthe pre-market IDE.
The primary purpose of this study is to compare the incidence of AVN in children with hematologic malignancies treated with prednisone versus dexamethasone during continuation.