View clinical trials related to Bone Marrow.
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This study aims to evaluate the effect of bone marrow concentration on union of femoral shaft fracture by comparing clinical and imaging outcomes between patients receiving Intramedullary nail fixation with intraoperative bone marrow concentration and those receiving Intramedullary nail fixation only.
This study aims to evaluate the effect of bone marrow concentration on bone healing and spinal fusion by comparing clinical and imaging outcomes between patients receiving transforaminal lumbar intebody fusion with local bone graft and with intraoperative bone marrow concentration and those receiving transforaminal lumbar intebody fusion with local bone graft only.
This study aims to evaluate the effect of bone marrow concentration on healing of rotator cuff tear by comparing clinical and imaging outcomes between patients receiving arthroscopic repair with intraoperative bone marrow concentration and those receiving arthroscopic repair only.
This study aims to evaluate the effect of bone marrow concentration on avascular necrosis of femur head by comparing clinical and imaging outcomes between patients receiving core decompression surgery with intraoperative bone marrow concentration and those receiving core decompression surgery only.
Patients with osteoarthritis of the knee undergo visible joint changes in radiology and Magnetic resonance imaging (MRI) tests, but also clinically and histologically. The area of greatest change is at the subchondral/cartilage bone junction. Investigators will determine the association between preoperative clinical evaluation (IKDC and Womac scores), radiological classifications and histopathology. In addition, the role of inflammation in the pathogenesis of osteoarthritis is being given major interest, and inflammation is closely linked with vascularization. It was recently demonstrated that dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) could identify the subchondral bone marrow vascularization changes occurring in osteoarthritis in animals. These changes appeared before cartilage lesions were visible and were correlated with osteoarthritis severity. Thus the opportunity to obtain an objective assessment of bone vascularization in non-invasive conditions in humans might help better understanding osteoarthritis pathophysiology and finding new biomarkers. Investigators hypothesized that, as in animals, DCE-MRI has the ability to identify subchondral bone marrow vascularization changes in human osteoarthritis.
Bone marrow biopsy is a frequently performed procedure to diagnose and evaluate hematologic diseases. It is estimated that over 700,000 bone marrow procedures (BMP's) are performed annually in the U.S. Most of them are performed by practicing hematologists/oncologists in their offices or hospitals. However, a significant number are performed by hematologists-in-training (H-I-T's) in teaching hospitals. However, the incidences of complications associated with bone marrow biopsy are largely unknown. This study has two goals: 1. The first goal is to objectively determine by CT and clinical assessment, the actual risk to patients of the bone marrow biopsy and the rate of pelvic injury in an unselected group of hematology patients requiring a bone marrow biopsy, as performed by hematologist-in-training. 2. The second goal is to determine the quality of bone marrow biopsies obtained, using the lateral angulation technique.
DCE-MRI were performed in sixty adults (hips and lumbar spine). For each region of interest studied, the investigators determined the morphology of each time-concentration curve (TCC) and calculated semi-quantitative and pharmacokinetic parameters: initial slope (IS), area under the curve (AUC), time to peak (TTP), Ktrans, Kep and Ve. Clinical data were collected anamnestically.
The overall aim of the proposed project is to evaluate the impact of a health promotion intervention for children undergoing bone marrow or stem cell transplant (BMT). The intervention is complementary in nature, designed to increase the experience of positive affect and reduce somatic distress and mood disturbance, that is, to improve overall child well-being. The study will utilize a positive psychology model, exploring the hypothesis that improved outcomes will be mediated by the increased experience of positive affect states brought about by the intervention. The primary focus is on a child-targeted intervention that includes massage therapy and humor therapy. The study will also assess whether the addition of a similar parent-targeted intervention involving massage therapy and relaxation training will provide significant benefits beyond those provided by the child-targeted intervention alone. The study will utilize a 3-group design, with participants randomized to receive:1) a child-targeted intervention (HPI-C); 2) a child targeted intervention plus a parent-targeted intervention (HPI-CP); 3) standard care (SC). Primary outcomes include child positive affect, somatic distress and mood disturbance, as well as measures of parental positive affect and distress. Additional objectives of the study include examining the impact of the intervention on short-term medical outcomes, as well as measures of child health-related quality of life and parent and child post-traumatic stress symptoms (PTSS) at 6 months post-BMT. Analyses will explore hypotheses specific to the positive psychology model, testing the role of positive affect and dispositional optimism as mediators and moderators of the intervention on child and parent well-being. We will also obtain pilot data examining the effect of the interventions on neuroendocrine and neuroimmune markers of stress.
This study will examine growth factors that promote and inhibit mast cell proliferation resulting in mastocytosis, a disease of excessive mast cells in the body. These cells can release chemicals that cause itching, blisters, flushing, bone pain and abdominal pain. Patients up to 80 years of age with mastocytosis may be eligible for this 1-day study. Participants will have one visit at NIH lasting up to 8 hours, during which they will undergo the following tests and procedures: - Medical history and physical examination. - Laboratory studies, if medically indicated. - Blood tests to identify genetic changes important in the growth, development, and functioning of mast cells. - Bone marrow aspiration and biopsy. For the bone marrow procedure, the skin over the hipbone and the outer surface of the bone itself are numbed with local anesthesia. Then, a special needle is inserted into the hipbone and about 1 tablespoon of bone marrow is drawn into a syringe. Another needle is inserted into the same area to collect a small piece of the bone marrow. Additional procedures may include allergen testing, urinalysis, and 24-hour urine collection. Participants will receive an evaluation of their mastocytosis.