Etujänne

Etujänne is a Finnish term referring to the anterior cruciate ligament, commonly known as the ACL. This crucial ligament is located within the knee joint and plays a vital role in stabilizing the knee, particularly during rotational movements and preventing the tibia from sliding forward relative to the femur. Tears of the ACL are a frequent sports-related injury, often occurring during activities that involve sudden changes in direction, jumping, and landing.

The mechanism of injury can vary, but typically involves hyperextension of the knee, a direct blow to the knee, or a non-contact pivot or twist. Symptoms of an ACL tear often include a popping sensation at the time of injury, immediate pain, swelling, and difficulty bearing weight on the affected leg. Instability of the knee is a hallmark symptom, making activities like walking or turning feel precarious.

Diagnosis is usually made through a physical examination, which includes specific orthopedic tests, and often confirmed with magnetic resonance imaging (MRI). Treatment options depend on the severity of the tear, the individual's activity level, and the presence of other knee injuries. Non-surgical management may involve rest, ice, compression, elevation (RICE), physical therapy to regain strength and range of motion, and bracing. Surgical reconstruction of the ACL is frequently recommended for athletes or individuals experiencing significant knee instability, involving replacing the torn ligament with a graft, typically taken from the patient's own hamstring or patellar tendon. Rehabilitation following surgery is extensive and crucial for a successful return to full function.