What to know about Osgood-Schlatter disease in adolescents

Osgood-Schlatter disease is irritation where the patellar tendon attaches to the tibial tubercle, the bony area just below the kneecap. It commonly appears during growth when running, jumping, squatting and sport repeatedly load the tendon. The usual pattern is pain or tenderness over that bump, sometimes with local swelling, made worse by activity and eased by rest. One or both knees can be involved. The condition is not the same as a sudden ligament injury, although a new injury can occur at the same time.

A clinician can assess the knee and the child’s movement, strength and activity pattern. Imaging is not always needed when the symptoms and examination fit this pattern.

Reduce or pause the activity that clearly provokes pain, especially repeated jumping, sprinting or deep kneeling, while keeping comfortable low-impact movement. Ice wrapped in a cloth after activity may ease soreness. Gentle stretching of the thigh and strengthening of the hip and leg can be introduced with physiotherapy guidance. Support the adolescent in telling a coach when pain rises rather than hiding symptoms to remain in play. Return to sport gradually when walking, stairs, basic strength and sport-specific drills are comfortable.

Arrange assessment if pain persists despite sensible activity changes, interferes with sleep or school, or causes a limp. Prompt review is needed for major swelling, redness or warmth, fever, inability to bear weight, locking, giving way, or pain after a significant twist or impact. Sudden severe pain with a change in the bony area also warrants prompt attention. A clinician can distinguish this condition from other causes of knee pain.

Ask which activities are acceptable now, what pain level should stop training, and which exercises fit the adolescent’s growth and sport. Ask when to use support, how to plan a return to competition, and what symptoms mean the diagnosis should be reconsidered.