Common Conditions
Patellar Tendinitis
Symptoms, Common Causes and Treatments
Definition
Patellar tendinitis, also known as patellar tendinopathy, refers to the pain and dysfunction of the patellar tendon resulting from mechanical loading. This condition is a prevalent source of anterior knee pain, typically presenting as localized discomfort on the inferior aspect of the patella. It is commonly seen in young athletes engaged in sports involving repetitive jumping, such as basketball and volleyball. Research indicates that the prevalence of patellar tendinopathy can be as high as 40% among elite basketball and volleyball players. While factors such as gender, body weight, body mass index, and quadriceps strength are associated with this condition, training load is identified as the most significant risk factor.
Symptoms of Patellar Tendinitis
Individuals with patellar tendinitis often experience pain after prolonged sitting, squatting, stair climbing, and jumping. The pain typically intensifies with deeper squats but may improve following repetitive loading of the tendon. To distinguish patellar tendinitis from other causes of anterior knee pain, palpate the inferior pole of the patella. Tenderness at this site strongly suggests the presence of patellar tendinopathy.