Manual therapy in the form of thrust and non-thrust manipulation to the lower extremity was found to be successful in restoring normal movement patterns and pain-free function in a 40-year-old patient with chronic anterior knee pain and ankle sprain symptoms. The patient had suffered for one year from patellofemoral pain syndrome, which is characterized by pain or discomfort originating from the contact of the posterior surface of the kneecap with the thighbone.
Journal of Manual Manipulative Therapies, May 2014