Patient History
28-year-old man with knee pain. Query meniscus tear.
Findings
Menisci:
Medial Meniscus: Intact.
Lateral Meniscus: Intact.
Ligaments:
Anterior Cruciate Ligament: Intact.
Posterior Cruciate Ligament: Intact. Mildly lax and slightly swollen proximally.
Medial Collateral Ligament: Intact.
Lateral Collateral Ligament: Intact.
Posterolateral Corner Structures: Intact.
Extensor Mechanism:
Patellar Tendon: Intact and unremarkable.
Distal Quadriceps Tendon: Intact quadriceps tendon. Extensive prepatellar plate delamination with surrounding high signal edema and thickened edematous prepatellar bursa. No bursal effusion.
Medial Patellofemoral Ligament: Intact.
Medial and Lateral Patellar Retinacula: Slightly thickened lateral patellar retinaculum. Slightly lax medial patellar retinaculum.
Hoffa Fat Pad: Mild edema within the superolateral aspect of Hoffa’s fat pad, suggesting a degree of lateral patellar impingement.
Articulations:
Patellofemoral Compartment: Wiberg type 2 patella. No trochlear dysplasia. Mild lateral patellar tilt. No patellar subluxation. Normal TT-TG distance mesuring 1.0cm. Preservation of the patellofemoral cartilage.
Medial Compartment: Normal.
Lateral Compartment: Normal.
General:
Bones: Normal.
Effusion: None.
Baker’s Cyst: None.
Neuovascular: Normal.
Loose Bodies: None.
Conclusions
1. Extensive prepatellar plate delamination with surrounding active inflammation and prepatellar bursitis.
2. Patellar tendon-lateral femoral condyle friction syndrome (Hoffa fat pad impingement syndrome) related to patellofemoral maltracking.
3. No meniscus tear.
