Chieng P U, Chan W P, Huang K M, Chang H, Djukic S, Genant H K, Tien R D
Department of Radiology, National Taiwan University, Medical College and Hospital, Taipei, R.O.C.
J Formos Med Assoc. 1991 Apr;90(4):388-91.
The magnetic resonance imaging (MRI) in 4 cases of subchondral cyst at the knee joint region, were acquired from a 1.5 Tesla imager. We found a high incidence of concomitant occurrence of subchondral cysts with a ruptured anterior cruciate ligament (ACL) in all of these cases. The 2 men and 2 women, had an average age of 35. Clinically, they complained of dull knee pain and mild instability. Conventional radiography detected subchondral cysts in 3 of them, while MRI disclosed that all of the subchondral cysts were at the tibial plateau, close to the intercondyloid eminence. To date, MRI is the only imaging modality which can depict the concomitant occurrence of a subchondral cyst and a ruptured anterior cruciate ligament at the knee joint. Whether these subchondral cysts were the consequences of the ruptured anterior cruciate ligaments as one of the causes in addition to synovial fluid intrusion and bony contusion, need further clinical observation and investigation.
对4例膝关节区域软骨下囊肿患者进行了磁共振成像（MRI）检查，图像由一台1.5特斯拉成像仪采集。我们发现，所有这些病例中软骨下囊肿与前交叉韧带（ACL）断裂同时出现的发生率很高。患者为2男2女，平均年龄35岁。临床上，他们主诉膝关节隐痛和轻度不稳。传统X线摄影在其中3例中检测到软骨下囊肿，而MRI显示所有软骨下囊肿均位于胫骨平台，靠近髁间隆起。迄今为止，MRI是唯一能够显示膝关节软骨下囊肿与前交叉韧带断裂同时出现情况的成像方式。这些软骨下囊肿是否是除滑液侵入和骨挫伤之外，前交叉韧带断裂的结果之一，还需要进一步的临床观察和研究。
