Patellar tendinitis is an injury to the tendon connecting your kneecap (patella) to your shinbone, is a relatively common cause of pain in the inferior patellar region in athletes. It is common with frequent jumping and studies have shown it may be associated with stiff ankle movement and ankle sprains.
Anterior knee pain over the patella tendon, Pain made worse with jumping, landing or running activity and sometimes with prolonged sitting, Onset of pain is usually gradual and commonly related to an increase in sport activity, Localised tenderness over the patella tendon, Often the tendon feels very stiff first thing in the morning.
A physical therapist may also recommend specific exercises and stretches to strengthen the muscles and tendons. This may help relieve pain, Autologous blood injection, or platelet-rich plasma injection may be performed and is typically successful though not as successful as high volume saline injection.