膝关节前交叉韧带重建术后进行MRI-3D扫描的可行性

摘要

目的:分析膝关节前交叉韧带 (ACL) 重建术后进行MRI-3D扫描的可行性.方法:回顾性分析2015年1-12月膝关节ACL损伤患者24例的临床资料, 均行ACL重建术.均于术后12个月, 进行MRI-2D和MRI-3D检查, 比较患者手术前后的Lysholm评分、KT-1000测量的胫骨相对前移距离, 比较患者MRI-2D和MRI-3D重建图像上Blumensaat角.结果:术后12个月膝关节Lysholm评分高于术前, 且KT-1000测量结果小于术前, 比较差异均有统计学意义 (P＜0.05) ;MRI-3D和MRI-2D测量的患侧Blumensaat角比较差异有统计学意义 (P＜0.05), 健侧Blumensaat角比较差异无统计学意义 (P＞0.05), 且MRI-3D患侧与健侧Blumensaat角比较差异无统计学意义 (P＞0.05), 而MRI-2D患侧与健侧Blumensaat角比较差异有统计学意义 (P＜0.05) .结论:MRI-3D较MRI-2D更有利于准确测量Blumensaat角, 且ACL重建术后膝关节MRI-3D扫描可常规做术后复查的参考, 有助于指导术中定位及术后评估.%Objective:To analyze the feasibility of MRI-3D scan after anterior cruciate ligament (ACL) reconstruction of knee joint.Method:The clinical data of 24 patients with ACL injury of knee joint from January to December 2015 were retrospectively analyzed, all patients underwent ACL reconstruction.And all patients underwent MRI-2D and MRI-3D examinations 12 months after operation, the Lysholm score and the relative forward distance of tibia measured by KT-1000 before and after operation were compared, the Blumensaat angles on the reconstructed images of patients between MRI-2D and MRI-3D were compared.Result:The Lysholm score of knee joint after operation 12 months was higher than that of before operation, and the KT-1000 measurement results were lower than that of before operation, the differences were statistically significant (P＜0.05).The Blumensaat angles measured by MRI-3D and MRI-2D was compared, the difference was statistically significant (P＜0.05), and the Blumensaat angle of the contralateral side was compared, the difference was not statistically significant (P＞0.05).The Blumensaat angle between the affected side and the healthy side in MRI-3D was compared, the difference was not statistically significant (P＞0.05), the Blumensaat angle between the affected side and the healthy side in MRI-2D was compared, the difference was statistically significant (P＜0.05).Conclusion:Compared with MRI-2D, MRI-3D is more advantageous for accurate measurement of Blumensaat angle, and MRI-3D scan of knee joint after ACL reconstruction can be used as a routine reference for postoperative review, which is helpful for guiding intraoperative localization and post-operative evaluation.