Leg deformity not only affects body shape and bodybuilding, but also harms human health. The harm to people's body shape and the great psychological pressure brought about by it. Influence on human health. Because the O-leg destroys the normal stress distribution of the knee joint, the biological stress on one side of the joint increases and the opposite side decreases relatively. Over time, it will also cause knee pain when walking, and joint activity will also be affected, which will easily lead to osteoarthritis. This operation is suitable for patients with very serious O-leg or already complicated with osteoarthritis and joint pain. The advantage of surgery is passive treatment and immediate correction, without perseverance and persistence. The defect is that the surgical techniques are different, and most of them need osteotomy, which is painful, risky and expensive. The advantages of this method mainly include: simple and safe osteotomy, fast bone healing, not easy to delay healing, easy to master the angle of plastic correction with external fixator, accurate bone healing angle and easy to adjust. Patients can move on the ground during the treatment, and the muscles of lower limbs will not atrophy.

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