Evaluation of Circulating Osteogenic Factors in Trauma Patients (BMP-9)
Bone fractures in traumatic brain-injured and spinal cord-injured patients often heal faster than in other patients. However, such patients are also occasionally prone to bone formation in soft tissues such as muscle. This process is called heterotopic ossification and tends to occur around joints. Patients with heterotopic ossification often suffer from complications such nerve compression, ankylosis, chronic pain, osteoporosis, and infections. Loss of movement can also interfere with function and the quality of life of patients already experiencing difficulties associated with their trauma. Positioning, transfers, and hygiene become difficult and even impossible, which worsens the loss of autonomy.
Previous research has suggested that an osteoinductive factor (which has the capacity to induce the formation of bone) may be released into the bloodstream following a head or spinal cord injury. The investigators laboratory has shown that a growth factor called BMP-9, when injected into a damaged mouse muscle, has the ability to cause strong ossification in damaged muscle. The investigators would like to find out whether the levels of BMP-9 and/or its receptor (which is called ALK1) increase after traumatic brain and spinal cord injuries that occur at the same time as serious orthopaedic traumas.
The main goal of the investigators study is thus to determine whether BMP-9 levels increase in the serum of trauma patients.
High Velocity Fracture
|Study Design:||Observational Model: Cohort
Time Perspective: Cross-Sectional
|Official Title:||Evaluation of Circulating Osteogenic Factors in Trauma Patients (BMP-9)|
|Study Start Date:||December 2010|
|Estimated Study Completion Date:||December 2017|
|Estimated Primary Completion Date:||December 2016 (Final data collection date for primary outcome measure)|
cranial trauma and fracture
Individuals presenting a cranial trauma that are classified at equal to or less than 8 on the Glasgow scale, combined with a fracture to the femur, tibia, or pelvis resulting from a high-velocity impact
Individuals presenting a cranial trauma that are classified at equal to or less than 8 on the Glasgow scale
spinal trauma with fracture
Individuals presenting a spinal fracture that are classified with an ASIA score of A, B, or C, combined with a fracture to the femur, tibia, or pelvis resulting from a high-velocity impact
Individuals presenting a spinal fracture that are classified with an ASIA score of A, B, or C
high velocity fracture, inferior limb
Individuals that present a fracture to the femur, tibia, or pelvis resulting from a high-velocity impact
Please refer to this study by its ClinicalTrials.gov identifier: NCT01433536
|Centre Hospitalier Universitaire de Sherbrooke|
|Sherbrooke, Quebec, Canada, J1H 5N4|
|Principal Investigator:||Guillaume Grenier, Ph.D.||Université de Sherbrooke|