CAJ | 학술논문

背景:侧副韧带对膝关节的稳定性起着重要的作用,通过2D/3D图像配准技术可以实现膝关节的运动还原并获得前交叉韧带损伤后生理屈曲过程中内侧副韧带和外侧副韧带长度变化规律.目的:对前交叉韧带损伤膝关节侧副韧带长度变化进行运动还原体内稳定性研究.方法:选择单侧膝关节前交叉韧带断裂而对侧正常的8例患者,在生理负重屈曲采集0°,15°,30°,60°和90°时的相互垂直的2D图像,与CT(3D)图像在虚拟X射线投射系统进行2D/3D图像配准,还原膝关节不同角度时的股骨和胫骨相对3D位置关系,并通过韧带止点还原的方法对内侧副韧带、外侧副韧带进行韧带长度分析,并对比两侧.结果与结论:内侧副韧带损伤后在0°,15°和30°患膝内侧副韧带长度较健膝增加;内侧副韧带损伤后在0°、15°和30°患膝外侧副韧带长度较健膝减少,差异均有显著性意义(P＜0.05).结果提示,在0°、15°和30°,前交叉韧带损伤后患膝内侧副韧带长度较健膝增加,而外侧副韧带长度较健膝缩短.
배경:측부인대대슬관절적은정성기착중요적작용,통과2D/3D도상배준기술가이실현슬관절적운동환원병획득전교차인대손상후생리굴곡과정중내측부인대화외측부인대장도변화규률.목적:대전교차인대손상슬관절측부인대장도변화진행운동환원체내은정성연구.방법:선택단측슬관절전교차인대단렬이대측정상적8례환자,재생리부중굴곡채집0°,15°,30°,60°화90°시적상호수직적2D도상,여CT(3D)도상재허의X사선투사계통진행2D/3D도상배준,환원슬관절불동각도시적고골화경골상대3D위치관계,병통과인대지점환원적방법대내측부인대、외측부인대진행인대장도분석,병대비량측.결과여결론:내측부인대손상후재0°,15°화30°환슬내측부인대장도교건슬증가;내측부인대손상후재0°、15°화30°환슬외측부인대장도교건슬감소,차이균유현저성의의(P＜0.05).결과제시,재0°、15°화30°,전교차인대손상후환슬내측부인대장도교건슬증가,이외측부인대장도교건슬축단.
BACKGROUND: Lateral collateral ligaments play an important role in maintaining knee stability.Motion reduction of knee joint can be realized and the changes laws of medial and lateral collateral ligaments' length after anterior cruciate ligament(ACL)injury during weight-bearing flexion can be obtained via 2D/3D image registration technique.OBJECTIVE: To study in vivo stability of length changes of the medial and lateral collateral ligaments of ACL injury knee during weight-bearing flexion.METHODS: Eight volunteers with unilateral ACL rupture and contralateral normal knees,was captured CT images and 2orthogonal images of the knee at 0,15°,30°,60°,and 90° of weight-bearing flexion.These orthogonal images were used to recreate the in vivo knee positions at each of the targeted flexion angles by the method of 2D/3D image registration.Through the bone insertion of medial and lateral collateral ligaments,the elongation changes of medial and lateral collateral ligaments were obtained.RESULTS AND CONCLUSION: At 0°,15° and 30°,the length of medial collateral ligament of ACL injury knees was longer than normal knees,but the lateral collateral ligaments length of ACL injury knee was shorter than that of normal knees.All the differences have statistical significances(P < 0.05).The findings demonstrated that,at 0°,15° and 30°,the medial collateral ligament length of ACL injury knees was longer than normal knees,but lateral collateral ligaments length of ACL injury knees was shorter than normal knees.