Right patella dislocation. what did i do wrong?

Accident: Did it occur as a result of an accident? Do you have loose joints. Has it happened before?

Not much: Patellar dislocations can occur due to joint laxity, anatomic orientation of the knees being a variant of normal, or a completely normal knee sustaining trauma leading to dislocation of the patella. In general, depending on patient age, athletic level etc, a first time patella dislocation is treated non-operatively with a brace and physical therapy. However, realize that there is a 50% chance of a recurrent dislocation. Surgery is indicated for those. Ligament reconstructions to ostoetomies (cutting bone to realign bones) can be done.