It is a common cause of knee pain in children and adolescents. It is caused by repeated stress of your large thigh muscle tendon where it attaches to the top of your kneecap and shin bone. This stress results in this area becoming inflamed and painful.
What are the common symptoms?
The most common symptoms of SLJ are:
- Knee pain either during or after participation in sports
- Swelling at the bottom of your kneecap which can be tender to touch
- Reduced knee strength
- Tightness of your leg muscles.
These symptoms usually appear gradually and often after you have had a growth spurt.
These symptoms can appear in one or both of your knees.