Is there a meniscal tear?
No - both menisci are intact with a satisfactory "bow tie" appearance on sagittal views. The ACL and PCL are also intact.
Is the patella normal?
No - the patella is malaligned with a shallow trochlea and lateral tilt, and pulled off centre by the tibial tuberosity (increased TT-TG distance). There is also oedema/bruising in the medial patella and in the lateral femoral condyle consistent with a recent dislocation.
Small joint effusion.
Pattern of bone bruising (high signal on PD fat sat sequence) in the medial patellar facet and lateral femoral condyle suggests recent lateral dislocation.
A number of features supporting patellar instability: shallow trochlea, borderline tibial tuberosity - trochlear groove (TT-TG) distance, and lateral patellar tilt.
Signal change in the medial patellar retinaculum, with discontinuous/torn medial patellofemoral ligament. Oedema extends along the medial supporting structures, including the MCL.
Normal menisci, ACL, PCL and lateral collateral complex. Normal patellar and included quadriceps tendon.