Department of Diagnostic Radiology, Tan Tock Seng Hospital, Singapore.
The Orchard Imaging Centre, Singapore.
Singapore Med J. 2019 Feb;60(2):63-68. doi: 10.11622/smedj.2019017.
The anterior cruciate ligament (ACL) is an important stabiliser of the knee and is commonly torn in sports injuries. Common indications for imaging after ACL reconstruction include persistent symptoms, limitation of motion and re-injury. Important postoperative complications include graft failure, impingement, arthrofibrosis and graft degeneration. This article aimed to familiarise the radiologist with magnetic resonance (MR) imaging appearances of properly positioned intact ACL grafts and to provide a comprehensive review of MR imaging features of complications following ACL reconstruction.
前交叉韧带（ACL）是膝关节的重要稳定结构，在运动损伤中常被撕裂。ACL 重建术后的常见影像学检查指征包括持续性症状、运动受限和再损伤。重要的术后并发症包括移植物失败、撞击、关节纤维性强直和移植物退变。本文旨在使放射科医生熟悉正确定位的完整 ACL 移植物的磁共振成像（MR）表现，并全面回顾 ACL 重建术后并发症的 MR 成像特征。
