Our patient was a recreational midfielder in an over-30 league he had played in for nearly a decade. He came to the LAOSS Glendale office the morning after an ER visit. The history was as classic as ACL histories get — a planted right foot, a twisting torso, a noise everyone in the area heard, and a knee that swelled visibly within an hour. The ER had taken plain films (negative for fracture), put him in a brace, and told him to follow up with sports medicine.
In clinic we saw a moderate effusion, a positive Lachman with a soft endpoint, and tenderness along the medial joint line. We ordered an MRI through our same-week imaging partner. It came back with a complete mid-substance ACL tear, a non-displaced longitudinal tear of the medial meniscus in the red-red zone, and a small bone bruise pattern on the lateral femoral condyle and posterior tibial plateau — the classic 'kissing contusions' that almost every ACL injury leaves behind. The exam, the story, and the scan all agreed. He needed reconstruction.