Abstract:  distraction in the treatment of early and middle stages of osteonecrosis of the femoral head （ONFH）. Methods A retrospective analysis was conducted on 50 patients with early to mid stage ONFH from January 2020 to January 2021. Among them，25 patients received FVFG combined with hip joint external fixation were set up as the treatment group， while  the other 25 patients received simple FVFG transplantation were set up as the control group. The improvement of Harris  score， VAS score， and X-ray grading in each group were observed， and the relevant imaging indications were analyzed. Results Postoperative Harris scores and VAS scores of the two groups were significantly improved， and the difference was  statistically significant （P<0.001）. There were statistically significant differences in Harris scores and VAS scores between  the two groups after treatment （P<0.05）. X-ray grading showed that 96% of patients in the observation group were effective， while 84% of patients in the control group were effective， and the difference was statistically significant （P<0.05）. Conclusion FVFG combined with distraction of external frame of hip joint in the treatment of ONFH has a certain effect and  is worthy of clinical promotion.

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