osgood schlatter disease or osd is inflammation of the patellar ligament at the tibial tuberosity

graphic osgoodschlatter vector human science anatomical skeleton chronic sport cartilage pain injury leg body tendinitis kneecap fracture illustration anatomy medical growth medicine femur therapy plate hurt bone lesion patellar tendon tibia shinbone tibial tubercle quadriceps muscle patella osgood schlatter disease osd inflammation ligament tuberosity apophysitis painful bump knee