To evaluate the efficacy of fibula osteotomy and exercise therapy in treating knee osteoarthritis with internal knee turning.

From January 2016 to January 2018, used fibula osteotomy and exercise therapy to treat 30 patients with knee osteoarthritis in the Department of Osteoarthritis, Yueyang Central Hospital. Follow-up comparisons were performed after surgery. The visual analogue scale (VAS) andthe hospital forspecial surgery (HSS) kneescoreandthe gait changes of the knee jointwerecomparedinfollow-up.

All patients were follow-up, with HSS score increased from preoperative (50.2±7.8) to 4 months (78.2±6.3), 8 months (82.1±5.5) and VAS score from preoperative (6.8±1.2) to 4 months (3.2±1.1) and 8 months (2.5±0.8).HSS scores were significantly higher after two postoperative follow-up and VAS scores were significantly reduced (P<0.05). The joint angle parameters range from preoperative flexion and extension angle -5°-45°, internal and external flip angle -8°-18°, internal and external rotation angle -5°-20°, flexion and extension angle at 8 months -4°-58°, inside and outside turning angle -7°-13°. Inside and outside rotation angle -3°-10°. Postoperative follow-up gradually improved knee flexion and extension and rotation compared with normal (P<0.05).

The early efficacy of fibula osteotomy and exercise therapy in treating knee osteoarthritis with internal knee turning is satisfactory. The quantitative indicators obtained by applying gait analysis provide an objective basis for the diagnosis, treatment and evaluation of osteoarthritis, which is worthy of clinical application and reference.