genu varus (O-shaped leg) affects the beauty and movement, and the uneven stress on both sides of the knee joint will lead to osteoarthritis for a long time. Although the harm of O-leg is quite many, must surgery be done to correct it? Let's listen to the introduction of Guang Mei medical plastic surgery experts. First of all, genu varus (O-leg) is a common deformity of lower limbs. Most of the patients are children and teenagers, which may involve one or both lower limbs. Pathogenic causes include rickets, poliomyelitis, epiphyseal injury, osteomyelitis and other diseases that lead to abnormal development of femur or tibia. It can not only affect the appearance, but also cause the load-bearing line of lower limbs to shift, which can lead to tension-side ligament relaxation, degenerative arthritis, patellar dislocation and patellar chondromalacia for a long time, and cause various corresponding symptoms. It's all caused the day after tomorrow! Although the diagnosis is not difficult, we should find the cause, make clear the location, direction and severity of the deformity, and choose appropriate treatment. If the course of disease is long and contracture is serious, physical therapy is not very useful, and it may be partially corrected! It is best to use surgical osteotomy! It is still very helpful to use non-surgical therapy before and after operation! Preoperative traction can reduce the scale of operation; Postoperative fixation or traction can consolidate or expand the orthopedic effect! Of course, surgical treatment includes cutting or lengthening the contracture tendon, cutting and peeling the posterior joint capsule, and supracondylar osteotomy and orthopedic surgery of femur. There are several surgical methods: anterior cruciate ligament amputation, posterior joint capsulotomy and osteotomy. The specific operation depends on the doctor's preferences, your opinions and other factors! Physical therapy can be used when you are young, such as fixing your legs with a straight stick for external use.