膝骨关节炎胫骨髁间棘增生与前交叉韧带信号异常的相关性研究

目的：探讨膝骨关节炎患者胫骨髁间棘的增生是否会引起前交叉韧带损伤。方法：自2009年2月至2012年10月中国中医科学院广安门医院骨科收集58例（70膝）无外伤史的膝骨关节炎病例，均行膝关节MRI检查，并对符合纳入标准的病例在冠状位上测量内外侧髁间棘的高度、矢状位上测量前交叉韧带异常信号的面积，分析髁间棘的高度与前交叉韧带的异常信号面积是否存在相关性。结果：58例（70膝）中5膝有膝关节内游离体，其余65膝均符合纳入标准。其中男10例，女48例，平均年龄61岁（39～79岁）。内侧髁间棘高度（10．02±1．46）mm，外侧髁间棘高度（8．92±1．69）mm，前交叉韧带异常信号范围（318．42＋130．10）mm。。内侧髁间棘高度与前交叉韧带异常信号的面积存在相关性（P=0．00），相关系数为0．60，二者呈正相关；外侧髁间棘高度与前交叉韧带异常信号的面积无相关性（P=0．10）。结论：内侧髁间棘高度与前交叉韧带的异常信号面积呈正相关，交叉韧带异常信号的临床意义需进一步研究．

Correlational on tibial intercondylar hyperplasia with the area of abnormal signalanterior cruciate ligament in patients with knee osteoarthritis

Objectives: To investigate whether tibial intercondylar hyperplasia can cause anterior cruciate ligament (ACL) injuries. Methods: From February 2009 to October 2012,58 cases(including 70 knees)with knee osteoarthritis (KOA) without trauma history were selected from the out-patient department of orthopaedics in Guang'anmen Hospital attached to China Academy of Chinese Medical Science. All cases were tested by MRI scanning,then vertical height of the medial and lateral intercondylar spine in coronal position and the area of abnormal signal of ACL in sagittal position were tested from patients. Correlation between the height of intercondylar spine and the area of abnormal signal of ACL were analyzed. Results: Fives cases of 58 cases(70 knees) were excluded from episome in knee joint,and other 65 knees were in accordance with the inclusion criteria. Among them,there were 10 males and 48 females aged from 39 to 79 years old with an average of 61 years old. The vertical height of the medial intercondylar spine was (10.02±1.46) mm and lateral was (8.92±1.69) mm. The area of abnormal signal ACL was(318.42±130.10) mm². There was positive correlation between the height of medial intercondylar spine and the area of abnormal signal of ACL(r=0.06,P=0.00). But there was no correlation between lateral intercondylar spine and the area of abnormal signal of ACL(P=0.10). Conclusion: The height of medial intercondylar spine and the area of abnormal signal of ACL is positively correlated. The clinical significance is in study,while the clinical meaning still need further study.