Comparing Efficacy of Bone Marrow Aspirate Concentrate (BMAC) Combined With Allograft in Treatment of Calcaneus Fractures

Inclusion Criteria: * Closed displaced intra-articular fracture without any evidence of nerve or blood vessel injury, the fractures belonged to Sanders type III according to Sanders classification and amenable to open reduction internal fixation * Life expectancy of at least 1 year * Patient is willing to provide informed consent, is geographically stable and able to comply with the required follow up visits, testing schedule and medication regimen * Adequate soft tissue coverage at the fracture site through primary closure. * Unilateral or bilateral calcaneal fractures. Exclusion Criteria: * Pregnant or breastfeeding women or planning on becoming pregnant during the investigational period * Patient is currently participating in an investigational drug or other device study or previously enrolled in this study. * Uncontrolled diabetes mellitus (hemoglobin A1c levels \> 10%) * A current endocrine or metabolic disorder known to affect osteogenesis * Currently has untreated malignant neoplasm(s), or is currently undergoing radiation therapy or chemotherapy. * Inadequate neurovascular status in the involved limb that may jeopardize healing. * Patients who have a preexisting calcaneus deformity that cannot accommodate a reduction or a previous history of osteomyelitis in the index limb. * Other ipsilateral lower extremity fracture(s) if, in the opinion of the investigator, the treatment and/or rehabilitation of such fracture(s) will substantially interfere with the treatment, r…