The Q angle is usually measured by looking at the axis of the thigh bone to the leg bone. This measurement helps in knowing if the patient has predisposition to patellar instability. If the patient has very high Q angle which can be collaborated with clinical and radiological findings, then they may need to undergo surgical correction to decrease the Q angle and prevent patellar instability and pain and prevent long-term complications in the form of early degeneration of the patellofemoral cartilage.