Bone samples will be collected from bone tissue that would normally be discarded during the reconstructive surgery, so no additional procedures are needed to collect the bone samples. At the time of surgery one sample of tissue will be taken from bone. The investigator will review the results of the test/procedure that are part of the standard of care and results will become part of the research record. The investigators will continue to use and disclose identifiable medical information and keep tissue samples for seven years. After this seven year period, all identifying information will be removed. Bone marrow tissues will be collected from patients at the time of surgery without any additional dissection or incisions. Bone will be finely minced and then plated in tissue culture flasks as previously reported by other groups.