What is a common sign during the examination of a patient with Osgood-Schlatter disease?

In a patient with Osgood-Schlatter disease, a common sign observed during the examination is a palpable bony lump at the tibial tuberosity. This condition typically affects adolescents who are physically active and is characterized by inflammation of the patellar tendon at its insertion point onto the tibial tuberosity.

The bony lump represents a formed prominence due to irritation and potential ossification at the site where the tendon attaches to the tibia. This feature is particularly prominent in growing children and adolescents, who may exhibit tenderness to touch in this area, especially after physical activities such as running or jumping.

Other symptoms may include localized pain and swelling around the knee, but the definitive sign is the palpable bump itself. This lump can often be felt during a physical examination, making it a key indicator for clinicians diagnosing Osgood-Schlatter disease.

Understanding this characteristic allows healthcare providers to differentiate Osgood-Schlatter from other knee-related conditions.