Loop leg clinically also known as knee inversion, its causes are more, such as physiological bending, rickets, trauma, inflammation, etc., mainly can take conservative treatment and surgical treatment and other ways of treatment. 1. Conservative treatment: if the patient is a child under 3 years old, it can be corrected by itself during development; to correct the deformity such as epiphysis is not closed, you can try to apply the binding, exercise, the use of splints or orthopedic insoles and other methods to correct it, but the effect is slow, and need to be insisted on for a long time; to actively treat the primary disease such as rickets, and other primary diseases, it should be actively treated, and at the same time, should not walk on the ground. 2. Surgical treatment: mainly take tibia high osteotomy orthopedics, commonly used osteotomy method has two kinds of wedge and pestle and mortar shape; in serious cases, total knee replacement can be taken to prevent premature degeneration and wear of articular cartilage, alleviate knee pain, restore normal knee activities, and improve the appearance of the lower limbs. However, complications such as vascular embolism, peroneal nerve injury, and infection may occur after surgery. It should be noted that if the patient has the manifestation of knee inversion, he should go to the hospital in time to find out the cause of the disease and actively treat it, so as not to delay the condition.