Abstract
Purpose:Our goal was to evaluate the effect of three dimensional model printing for treating complex acetabular fractures,especially focusing on duration of operation,blood loss,and quality of reduc-tion.Methods:From 2012 to 2015,sixty consecutive cases with complex acetabular fractures were sampled using stratified random sampling and equally divided into two groups,the non-3-D group using X-rays and computed tomography(CT)scans for pre-operative planning,and the 3-D group using X-rays,CT scans and three dimensional model printing for pre-operative planning and simulation surgery by surgeons.The nurse recorded the duration of the operation and blood loss.The quality of reduction was evaluated by one sur-geon who was not the treating physician.Results:All operations were completed by the same senior sur-geon.The mean operative time was longer in the non-3-D group as compared to the 3-D,the difference was statistically significant.Average blood loss was(447.7±48.3)ml and(404.3±63.2)ml,respectively for the non-3-D and 3-D groups,also was more in the non-3-D group and there is a statistically significant dif-ference.According to the Matta classification,radiographic grades were excellent in 10,good in 9,and poor in 11 of the non-3-D group and excellent in 18,good in 9,poor in 3 in the 3-D group,The quality of reduction was better in the 3-D group and the difference was statistically significant.Conclusions:Three dimensional printed models can be used in pre-operative planning and surgery simulation.The models are beneficial for reducing operating time and blood loss,increasing the quality of reduction.
维普
万方数据