What happened to the tibial tuberosity protrusion?

Tibial tuberosity is seen in adolescents during growth and development. When squatting and jumping frequently, it will pull the epiphysis of tibial tuberosity, so the formation of sterile inflammation in epiphysis stimulates tibial tuberosity to show obvious edema and protrusion. Moreover, it can be seen in the degeneration and hyperosteogeny of tibial tuberosity shown by middle-aged and elderly people, because tibial tuberosity is the stop point of patellar ligament, and long-term repeated leg weight-bearing activities will cause patellar ligament to repeatedly pull tibial tuberosity, resulting in local bone degeneration and hyperosteogeny, resulting in protrusion of tibial tuberosity.