关键词: 羟基磷灰石, 粉碎性骨折, 纳米材料, Hydroxyapatite, comminuted fracture, nano-material.

Abstract: Objective To compare the therapeutic efficacy between nanometer material and auto-bone graft in the treatment of long bone comminuted. Methods From June 2006 and July 2008, 71 cases with long bone comminuted fracture received surgical operation were analyzed retrospectively. Among them, 37 cases were treated with auto-bone graft and internal fixation, and 34 cases were treated with nano-material graft and internal fixation.Results All cases were followed up respectively over 12months. In the cases of auto-bone graft, the healing rates were in 34.9%、69.8% and 97.7% within 3, 6 and 12 months, While in the cases of nano-material graft, the healing rates were in 32.4%、67.6% and 97.3%, respectively within 3, 6and 12 months. No significant differences in the bone healing and joint function were found between two groups. Conslusion:Nanometer hydroxyapatite would use in the treatment the long bone comminuted fracture and gained well bone healing.