Active clinical trials for "Bone Diseases"

This study seeks to identify risk factors associated with the development of a jaw condition seen in patients with cancer treated with certain medications.

The purpose of this study is to identify the combined impact on bone loss as well as the incidence of bone fractures in women with estrogen receptor (ER)-positive, early breast cancer treated with an aromatase inhibitor (AI) either as first line therapy or as maintenance therapy after initial treatment with chemotherapy, in real life clinical settings in Greece.

Bone scintigraphy scans are two dimensional medical images that are used heavily in nuclear medicine. The scans detect changes in bone metabolism with high sensitivity, yet it lacks the specificity to underlying causes. Therefore, further imaging would be required to confirm the underlying cause. The aim of this study is to investigate whether deep learning can improve clinical decision based on bone scintigraphy scans.

This is a observational study to investigate the degree to which bone mineral density is impaired in boys with autism compared with typically developing controls.

Background: - Osteoporosis is a condition where the bone becomes more brittle and more likely to break as a person ages. The drugs that people take to treat this condition have prevented many common hip fractures. But these drugs may be associated with problems in the shape and structure of the hip bone after many years of use. These changes in the hip bone may lead to an unusual kind of hip fracture. These fractures are very rare, so it is hard to study them. Researchers want to learn more about these fractures. Objectives: - To compare hip x-rays of three groups: people who have been taking osteoporosis drugs for several years, those who have just started taking them, and those who have never taken these drugs. Eligibility: People at least 50 years of age who have been taking osteoporosis drugs for at least 5 years. People at least 50 years of age who have been taking these drugs for less than 1 year. People at least 50 years of age who have never taken these drugs. Design: All participants will have three total visits over 3 years. At the first visit, those taking part will have a medical history and physical exam. They will complete a questionnaire about medication use and bone health. They will also have an x-ray of the hips and pelvis, and have a bone density scan (the kind used to test for osteoporosis) of the hips. Those in the study will repeat these exams and medical history questions at followup visits. These visits will take place 18 months and 36 months after the first study visit. At any of these visits, participants who may have a hip fracture that does not show up on the x-rays will have an imaging study to examine the bone more closely. Participants who receive a hip replacement or suffer from a broken bone at any time should inform the study researchers as soon as possible.

The purpose of this study is to determine whether ivacaftor, a recently FDA-approved CFTR potentiator, improves bone micro-architecture and strength in patients with cystic fibrosis with at least one G551D CFTR mutation.

The MBD-5D is a prospective observational study with a case-cohort and a cohort design. Eligible patients are receiving hemodialysis and have secondary hyperparathyroidism. The study's three goals are (1) to record the patients' characteristics, and variation in the patterns of their treatment; (2) to analyze factors associated with variation in those medical practice patterns; and (3) to identify practice patterns and other factors that affect hospitalization, mortality, and other patient-level outcomes.

This study will collect bone, cartilage, tendon, ligament, skin and fat tissue from patients undergoing surgery at Children's National Medical Center in Washington, ...

Pressure ulcer represents a frequent clinical condition in patient with spinal cord injury or after prolonged Intensive Care Unit (ICU) stay. Osteomyelitis constitutes a severe complication with a poorly known management, and is associated with a high rate of relapse, leading to a high-burden in hospital bed-days, financial cost, surgical intervention, antibiotic use, morbidity and mortality, and nursing care. In our reference center for bone and joint infection management, the medical and surgical strategies are systematically discussed during pluridisciplinary meetings. Most patients benefit from a two-stage surgical strategy (debridement with initiation of vacuum-assisted closure therapy until reconstruction using muscular flap) with prolonged antimicrobial therapy. In this context, our study aims to evaluate this complex approach and to determine risk factors of treatment failure in order to improve patient management, focusing on optimization of empirical antimicrobial therapy after each surgical stage, delay between the two surgical stage, and duration of antimicrobial therapy.

This study will determine the genes responsible for skeletal dysplasias (disorders of the skeleton) and short stature and define the range and type of medical problems they cause over time. It will investigate whether specific gene changes cause specific medical problems in these disorders and identify the signs and symptoms upon which their diagnoses must be based. Individuals with short stature or with a skeletal dysplasia known or suspected to be caused by a gene mutation (change) may be eligible for this study. Family members may also participate. Skeletal dysplasias under study include: achondroplasia, hypochondroplasia, achondrogenesis type II, hypochondrogenesis, Kniest dysplasia, spondyloepiphyseal dysplasias, Stickler syndrome; Shmid and Jansen metaphyseal dysplasias; pyknodysotosis, proximal symphalangism, brachydactyly types B C and E, Ellis van Creveld and related disorders, metatrophic chondrodysplasias, cartilage-hair hypoplasia and disorders with a skeletal abnormality that have not yet been defined but might be the result of a genetic defect. Patients will talk with two genetics specialists who will explain the study and its possible implications for the patient and family and answer questions. The patient's medical records will be reviewed, a personal and family history will be taken, and a physical examination will be done. Various other procedures that may be done include drawing up to 6 tablespoons of blood, some of which will be used for DNA (genetic) studies, X-rays, echocardiography (ultrasound of the heart), magnetic resonance imaging (MRI), eye examination, hearing test, sleep study, sperm analysis and skin biopsy (surgical removal of a small piece of skin done under local anesthetic). There may be additional evaluations by specialists in rheumatology, rehabilitation medicine and orthopedics. When the tests and examinations are completed (after 2 to 3 days), a doctor will discuss the results with the patient. Patients whose DNA studies show that a gene change is responsible for their disorder will meet with a genetics nurse or counselor to review the results, express their feelings and ask any questions they may have. Patients may be asked to return to NIH every 6 months to 2 years for continued follow-up. Medical management will be provided primarily by the patient's own physician. Participating family members will be interviewed by telephone about their personal and family health history and will have a blood sample drawn for DNA testing. If a gene change is found that is responsible for the bone disorder or growth problem in the family, arrangements will be made for the family member to discuss the implications of the findings with a genetics specialist.