Object To observe the effect of measurement and correction of the line of weight transmission of lower extremitis for patients with osteoarthritis and find a method of accurate measurement of the lower extremity and effective treatment of osteoarthritis.

• 目的对原发性膝骨关节炎患者行全下肢立位力线测量，并手术矫正，观察疗效，探讨一种精确测量下肢力线与治疗膝骨关节炎简便有效的方法。