Question: My son (13) banged his knee running up the stairs. He limped for a couple of days and soon was able to do walking and running after a week. We began speed training and soccer workouts which were intense. After a training session 3 weeks ago he left to play basketball with friends. He came home in pain complaining his same knee he bumped hurt a lot after jumping for a shot. The pain is located an inch below the knee cap. A hard lump developed an the following day. He rested his knee for about a week then began biking and walking. Some discomfort was felt. After two weeks he was biking without pain and the bump turned to soft gel like feel instead of hard. It was less noticeable by sight. After the third week he tried some light soccer training at half speed with no discomfort until jumping over cones he mentioned that it felt weird, slight pain but only when jumping off the injured leg. What is your best guess for this injury. I considered Osgood-Schlatter or bursitis and maybe even an acute bruise contusion?? Any information you can provide would be greatly appreciated.

To answer your question, my son reports that it doesn’t feel wobbly walking down stairs. He mentioned it feels stronger now in comparison to when the impact first occurred on the stairs.

He indicates it only hurts while jumping. He also mentioned that he doesn’t appear to be able to flex his quadricep on the injured leg but when he try’s it doesn’t hurt.