USMLE High-Yield Questions on Instagram: "Mandem started a civil war and sacrificed his knees for the cause 🧎‍♂️💀 ⸻ ✅ Explanation The correct answer is prepatellar bursitis. Repeated kneeling or friction inflames the bursa located directly over the patella, causing focal anterior swelling and pain with kneeling. Because the joint itself is not involved, range of motion remains preserved. ⸻ ❌ Why the others are wrong Patellofemoral pain syndrome Causes diffuse anterior knee pain that worsens wi