Family Nurse Practitioner Exam

Which condition is characterized by a bonelike growth below the kneecap in adolescents?

1. Chondromalacia patella

2. Osgood-Schlatter disease

3. Meniscal tear

4. Patellar tendinitis

The correct answer is: Osgood-Schlatter disease

Osgood-Schlatter disease is characterized by a bonelike growth below the kneecap, specifically at the tibial tuberosity, and is commonly seen in adolescents. This condition occurs due to repetitive strain and stress on the knee, particularly during periods of growth spurts when the bones are still maturing. The trauma or tension from the quadriceps muscle via the patellar tendon can lead to irritation and inflammation, causing pain and the formation of a bony prominence at the site. Given that adolescents are often involved in sports or activities that require running, jumping, or kneeling, they are particularly susceptible to this condition. The bony growth can be tender and may lead to discomfort during physical activities, but it typically resolves with time and conservative management, as growth plates close and the child matures. In contrast, conditions like chondromalacia patella primarily involve cartilage degeneration, while meniscal tears and patellar tendinitis are linked to soft tissue injuries rather than bony growths. Understanding these distinctions helps to clarify the unique nature of Osgood-Schlatter disease in the context of adolescent orthopedic conditions.