Hospital Militar D. Pedro V, Avenida da Boavista, 4050-113 Porto, Portugal.
Knee Surg Sports Traumatol Arthrosc. 2011 Feb;19(2):192-5. doi: 10.1007/s00167-010-1199-9. Epub 2010 Jun 22.
to describe agenesis of the anterior cruciate ligament (ACL) with an anterior lateral meniscofemoral ligament.
case report of a 13-year-old girl with an absent ACL and with an anterior lateral meniscofemoral ligament instead, as well as absence of the anterior insertion of the lateral meniscus in the tibia and a discoid ring-like lateral meniscus, with hypoplasia of the lateral femoral condyle. At arthroscopy, the anterior lateral meniscofemoral ligament was found to arise from the anterior horn of the lateral meniscus and insert into the posterolateral aspect of the intercondylar notch, mimicking the course of the native ACL on magnetic resonance imaging (MRI).
ACL agenesis may be associated with an anomalous anterior lateral meniscofemoral ligament that may mimic a normal ACL on MRI.
描述前交叉韧带（ACL）缺失伴前外侧半月板股骨韧带。
13 岁女孩病例报告，该女孩 ACL 缺失，代之以前外侧半月板股骨韧带，外侧半月板前附着于胫骨缺失，形成盘状环状外侧半月板，外侧股骨髁发育不良。关节镜检查发现前外侧半月板股骨韧带起自外侧半月板前角，插入髁间窝后外侧，在 MRI 上模拟正常 ACL 的走行。
ACL 缺失可能与异常的前外侧半月板股骨韧带相关，该韧带在 MRI 上可能模拟正常 ACL。
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