Which anatomical structure is primarily affected in Osgood-Schlatter disease?

• A Patellar tendon insertion at the inferior pole of patella
• B Anterior cruciate ligament origin
• C Tibial tuberosity apophysis ✓
• D Medial meniscus

Explanation

Osgood-Schlatter disease is a traction apophysitis affecting the tibial tuberosity apophysis. It occurs due to repetitive strain from the patellar tendon in adolescents. The patellar tendon inserts at the tibial tuberosity, not the inferior pole of the patella, which is involved in Sinding-Larsen-Johansson syndrome.

Reference: Maheshwari and Mhasker, Textbook of Orthopaedics, 6th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.