MRI OF THE LEFT KNEE; TECHNIQUE AND SEQUENCES; 3.0T Sagittal obl; TSE PD, TSE T2W FS Axial; TSE PD FS Coronal; TSE T1W, TSE T2W FS, T2-FFE Coronal obl; TSE T2W FS
FINDINGS;
The study reveals mild anterior tibial subluxation. There is normal alignment of the patellofemoral joint. There is no gross fracture. There is bone bruise at lateral femoral condyle, lateral tibial plateau and minimally at medial tibial plateau. There is no other abnormal marrow SI.
The medial and lateral meniscus are of normal shape and SI.
ACL is absent in its normal course. There is PCL angulated with increased PDWT2W SI at tibial attachment.
There is thickened increased T2W SI of LCL. MCL and iliotibial band are of normal course and SI. There is increased T2W SI of soft tissue surrounding the MCL.
The quadriceps and patellar tendons are of normal course and SI.
There is thickening with increased T2W SI of the medial patellar retinacula. The lateral patellar retinacula is unremarkable.
There is small amount of joint effusion. There is moderate amount of fluid in supra-retropatellar bursae and medial-lateral gutters.
There is focal increased T2W SI of medial facet of the patellar cartilage.
The neurovascular structures are intact.
There is diffuse subcutaneous tissue swelling around the knee.
There is a small Baker’s cyst at posteromedial aspect of knee.
IMPRESSION;
- Mild anterior tibial subluxation.
- Bone contusion at lateral femoral condyle, lateral tibial plateau and minimally at medial tibial plateau.
- Complete tear of ACL.
- Partial tear of PCL, at tibial attachment.
- Partial tear of LCL.
- Increased T2W SI of soft tissue surrounding the MCL, possibly due to sprain.
- Partial tear of the medial patellar retinacula.
- Small amount of joint effusion.
- Moderate amount of fluid in supra-retropatellar bursae and medial-lateral gutters, representing bursitis.
- Gr. 2 chondromalacia patellae at medial patellar facet.
- Diffuse subcutaneous tissue swelling around the knee.
- A small Baker’s cyst at posteromedial aspect of knee.