Coughlin just said, "Jacob's is an MCL. That's all I know."
Definition:Medial collateral ligament (MCL) injury is a stretch, partial tear, or complete tear of the ligament on the inside of the knee. Alternative Names:Knee injury - medial collateral ligament (MCL); MCL injury Considerations:The medial collateral ligament (MCL) extends from the upper-inside surface of the shin bone to the bottom-inside surface of the thigh bone. The ligament stabilizes the joint on the inside of the knee.Causes:The MCL is usually injured by pressure placed on the knee joint from the outside. It is often injured at the same time as an anterior cruciate ligament (ACL) injury .
Symptoms of a medial collateral ligament injury tend to correlate with the extent of the injury. MCL injuries are graded on a scale of I to III. Grade I MCL TearThis is an incomplete tear of the MCL. The tendon is still in continuity, and the symptoms are usually minimal. Patients usually complain of pain with pressure on the MCL, and may be able to return to their sport very quickly. Most athletes miss 1-2 weeks of play. Grade II MCL TearGrade II injuries are also considered incomplete tears of the MCL. These patients may complain of instability when attempting to cut or pivot. The pain and swelling is more significant, and usually a period of 3-4 weeks of rest is necessary. Grade III MCL TearA grade III injury is a complete tear of the MCL. Patients have significant pain and swelling, and often have difficulty bending the knee. Instability, or giving out, is a common finding with grade III MCL tears. A knee brace or a knee immobilizer is usually needed for comfort, and healing may take 6 weeks or longer.