41 Cases Observation on the Effect of Modified Traction Osteogenesis Technique on Promoting Bone Mineralization in the Tibial Elongation Region
Objective:To observe the clinical efficacy and safety of improved distraction osteogenesis technique in promoting bone mineralization in tibia lengthening area.Methods:From January 2018 to February 2023,41 patients with open tibial defects were selected.All patients were treated with modified distraction osteogenesis,bone mineral density(BMD)and callus diameter rate(CDR)were measured and recorded every 4 weeks after bone transport.Bone healing index and relat-ed complications were recorded.Results:All the 41 patients were followed up for 12-18 months(mean 15.8 months).The bone transfer was completed successfully.After operation,there were a little swelling and exudation around the screw holes of the external fixator in 6 cases,the average healing time was(18.27±4.43)d,the bone healing index was(1.208±0.124)month/cm at 4,8,12 and 16 weeks after operation,the BMD increased continuously,and the CDR de-creased with the increase of BMD,but increased gradually in the solidified stage,the excellent and good rate was 90.24%and 85.37%according to Asami's evaluation of lower extremity function.Conclusion:The modified distraction oste-ogenesis technique can accelerate the speed of bone minerali-zation,improve the quality of bone mineralization,reduce the related complications and benefit the recovery of limb function.
fracturebone displacementtibial bone defectbone mineral density(BMD)