Abstract: Objective To  explore the effects of headless double compression screws and traditional open reduction and internal fixation on ankle joint function in patients with traumatic ankle fracture.Methods A total of 98 patients who were prospectively included in the study and were admitted to the Department of Orthopedics of our hospital from January 2017 to March 2020.They were divided into a study group and a control group by using the random number table,with 49 cases in each group.The patients in the control group were given the traditional open reduction and internal fixation treatment,while those in the research group were given the headless double compression screw internal fixation treatment.The differences of perioperative indicators,AOFAS score and GQOLI-74 score between the two groups were compared.Both groups were followed up for one year,and the differences in clinical effects were comprehensively analyzed by comparing the occurrence of postoperative complications between the two groups.Results The therapeutic efficacy rate of the study group was 93.88%,which was significantly higher than 71.43% in the control group P＜0.05).The mean operation time[(40.94±6.72)min],intraoperative blood loss[(41.77±8.26)ml] and fracture healing time[(10.72±1.66)weeks] in the study group were significantly lower than those in the control group[(57.93±13.18)min,(56.28±12.27)ml and (13.76±2.08) weeks,P＜0.05].The flexion[(28.19±5.23)°],extension[(8.89±1.52)°],pronation(19.09±2.69) and supination range of motion(16.81±2.83)°in the study group 12 months after surgery were greater than those in the control group[(24.87±4.75)°,(7.63±1.67)°,(17.28±2.45)° and (14.13±2.57)°,P<0.05].In addition,the improvement degrees of the scores of the QOL in each dimension in the research group[(72.55±8.83),(73.65±9.12),(68.69±7.01) and (73.18±9.23)] were significantly superior to those of the control group[(65.12±8.17),(68.35±8.73),(63.12±6.84) and (67.22±8.74)](P＜0.05).The incidence of postoperative complications in the research group was 2.04%,which was significantly lower than in the control group(16.33%,P<0.05).The VAS score of the research group was (0.83±0.23),which was significantly lower than that of the control group(2.14±0.71),and there was a statistical difference(P<0.05).Conclusion Headless double compression screw internal fixation has significant curative effect,which can effectively promote fracture healing of patients and improve ankle function and quality of life score.Moreover,it has less postoperative complications and good safety.

Key words: headless double compression screw, traditional open reduction and internal fixation, traumatic, ankle fracture, ankle joint function, improving effect