CAJ | 학술논문

背景:目前有关MRI评价前交叉韧带重建后移植物完整性的精确性仍存在争议,同时观察健康前交叉韧带移植物关节镜下表现及MRI有关信号强度改变的研究资料较少.目的:对经关节镜检查证实的健康前交叉韧带移植物进行磁共振成像评价,确定其主要表现.方法:对经关节镜下前交叉韧带重建术后效果优良的25例患者进行磁共振成像检查和关节镜再观察,自体骨-髌腱一骨移植14例,四股胭绳肌腱移植11例.对26例次的关节镜结果和28例次的磁共振成像结果进行分析.结果与结论:26例次关节镜再观察中,有22例次(84.6%)滑膜覆盖良好,前交叉韧带移植物张力正常的23例次(88.5%).随着时间的推移,重建术后健康的前交叉韧带移植物的主要磁共振成像表现为低信号束移植物,合并有纵向的信号增强的条纹状束,保持良好的连续性和紧张有力的走向,前交叉韧带移植物的信号强度基本都表现出逐渐降低的趋势,但差异没有显著性意义(P>0.05).前交叉韧带移植物矢状位直径均值表现为先减少后增加的趋势,总体上矢状位直径趋于增大,但差异无显著性意义(P>0.05).
배경:목전유관MRI평개전교차인대중건후이식물완정성적정학성잉존재쟁의,동시관찰건강전교차인대이식물관절경하표현급MRI유관신호강도개변적연구자료교소.목적:대경관절경검사증실적건강전교차인대이식물진행자공진성상평개,학정기주요표현.방법:대경관절경하전교차인대중건술후효과우량적25례환자진행자공진성상검사화관절경재관찰,자체골-빈건일골이식14례,사고연승기건이식11례.대26례차적관절경결과화28례차적자공진성상결과진행분석.결과여결론:26례차관절경재관찰중,유22례차(84.6%)활막복개량호,전교차인대이식물장력정상적23례차(88.5%).수착시간적추이,중건술후건강적전교차인대이식물적주요자공진성상표현위저신호속이식물,합병유종향적신호증강적조문상속,보지량호적련속성화긴장유력적주향,전교차인대이식물적신호강도기본도표현출축점강저적추세,단차이몰유현저성의의(P>0.05).전교차인대이식물시상위직경균치표현위선감소후증가적추세,총체상시상위직경추우증대,단차이무현저성의의(P>0.05).
BACKGROUND: It remains controversial about the accuracy of MRI evaluation on the graft integrity following anterior cruciate ligament (ACL) reconstruction. There are few data recording manifestations and MRI signal intensity changes of healthy surviving ACL grafts at different stages.OBJECTIVE: To evaluate the postoperative magnetic resonance (MR) findings of healthy ACL grafts confirmed by second arthroscopic examination.METHODS: A total of 25 patients underwent arthroscopic ACL reconstruction and had a good or excellent postoperative result, including 14 cases of autogenous bone-patellar tendon-bone rafts and 11 cases of autogenous double-loop hamstring grafts. A total of 26 second arthroscopy and 28 MRI were analyzed.RESULTS AND CONCLUSION: Among the 26 cases of second arthroscopic examinations, there were 22 cases (84.6%) of good synovialization, and the tension of the ACL grafts was normal in 23 cases (88.5%). The major postoperative MR findings of the healthy ACL autografts were low graft with longitudinal streak-increased signal intensity bands, well-preserved continuation, and taut orientation. The signal intensity of ACL grafts showed the same tendency of decrease with time after operation, but it was not statistically significant (P > 0.05). The mean value of sagittal diameter of the ACL graft decreased initially, and increased gradually; the sagittal diameter of the ACL graft tended to be thicker with time after reconstruction, but this result was not significant statistically (P > 0.05).