Evaluation of intraoperative lower limb alignment measurement in high tibial osteotomy
Objective:To evaluate whether the traditional lower limb alignment measurement is of guiding significance for the correction of lower limb alignment in medial open wedge high tibial osteotomy(MOWHTO).Methods:A retrospective analysis was performed on 54 patients with knee medial compartment osteoarthritis who were treated with MOWHTO from January 2020 to September 2021.The imaging data of intraoperative fluoroscopy in supine position and full-length positive radiographs of lower extremities in standing position were measured and evaluated.The difference and correlation of mechanical axis deviation(MAD)during and after operation were compared.The effects of sex,age,body mass index(BMI),preoperative hip-knee-ankle(HKA)angle and preoperative joint line convergence angle(JLCA)on this difference were analyzed.Results:Univariate linear regression analysis showed that there was a statistically significant linear relationship between intraoperative MAD and postoperative MAD(P＜0.05).Multivariate linear regression analysis showed that BMI and JLCA were positive factors affecting the difference of intraoperative MAD and postoperative MAD.Conclusions:In MOWHTO,the method of traditional force line markers to measure the mechanical axis of lower extremities has a good guiding significance for the correction of lower limb alignment.Surgeons can try to introduce an appropriate amount of correct deficiency during the operation,so that they may be able to obtain a more satisfactory mechanical axis of the lower extremities in the standing position after operation.
万方数据
维普
