When Madelyn began to have issues with her kneecaps dislocating, causing her to collapse to the ground, she met with pediatric orthopedic surgeon Johns Tis. Dr. Tis determined she had recurrent patellar dislocation that would likely require surgery. Madelyn, like many patients, was not ready to have surgery right away, so Dr. Tis worked with her to treat her dislocation with physical therapy until she felt ready for surgery. | Johns Hopkins Children's Center