Abstract: Objective To explore the efficacy of precise surface positioning method in percutaneous screw fixation for Jones fracture.Methods Data of 46 patients with Jones fractures admitted to our hospital from September 2021 to December 2023 were retrospectively analyzed.According to the different treatment methods,the patients were divided into screw groups (24 patients fixed by percutaneous screws) and tension band groups (22 patients fixed by incision and reset tension band).The general conditions,follow-up time,surgical time,hospitalization time,fracture reduction quality,postoperative complete weight-bearing time,fracture healing time,and complications in the two groups were recorded and compared.The American Association of Foot and Ankle Surgery (AOFAS) system was used to assess the recovery of foot function.Results There was no statistically significant difference in the general data before the operation between the two groups of patients (P>0.05).The follow-up time of the two groups was 6 to 24 months.Compared with the tension band group,the screw group had shorter operation time[(32.96±5.35)min vs.(47.27±9.42)min],shorter hospitalization time [(5.75±1.18)d vs.(7.68±2.05)d],earlier postoperative complete weight-bearing time[(6.47±0.73)w vs.(7.29±1.66)w],faster fracture healing time[ (3.31±0.68)months vs.(4.29±1.29)months ],higher AOFAS score[(89.13±2.62)vs.(79.59±4.49)](all P<0.05).The tension band group of fracture reduction quality was better than the screw group(P<0.05).The quality of fracture reduction during the operation in the tension band group was better than that in the screw group (P < 0.05).In terms of complications:no complications occurred in the screw group,one patient in the tension band group developed infection,and one patient had a loose Kirchner needle.Conclusion Precise surface positioning method in percutaneous screw fixation for Jones fracture is a safe and effective method with precise positioning,simple operation,small trauma,and rapid rehabilitation,which is worthy of clinical promotion,but the indications need to be strictly controlled according to the type of fracture.

Key words: Jones fracture, minimally invasive, screw, surface positioning, tension band