Abstract: Objective  To explore the clinical effect of arthroscopic double-row anchored suture bridge technique in treating simple humeral greater tuberosity avulsion fractures.
Methods  From January 2015 to December 2018, 68 patients with avulsion fracture of greater tuberosity of humerus were treated in the Department of Orthopedics of our hospital,they were divided into two groups according to the treatment methods.38 patients who underwent arthroscopic double-row anchor suture bridge technique were included in the arthroscopy group,thirty patients who underwent locking plate internal fixation were included in the plate group.Compare the perioperative indicators of the two groups of patients,record the American shoulder and elbow surgeon(ASES) score,visual analog scale(VAS),and the University of California Los Angeles(UCLA) functional score before and after the operation(last follow-up),and count the patients Postoperative joint range of motion,postoperative complications and patient satisfaction with treatment.
Results  The operation time in the arthroscopic group was significantly longer than that in the steel plate group(P<0.05),the intraoperative blood loss was significantly less than that in the steel plate group(P<0.05),and the hospitalization time was significantly shorter than that in the steel plate group(P<0.05);there was no significant difference in fracture healing time between the two groups(P>0.05);the ASES score and UCLA score of the two groups were higher than those before operation,but the postoperative ASES score and UCLA evaluation between the two groups showed no statistically significant difference(P> 0.05);while the VAS score was significantly lower in the arthroscopic group than in the plate group(P<0.05);The range of motion of shoulder joint(90 ° internal rotation,abduction and forward flexion) in arthroscopy group was significantly higher than that in steel plate group(P<0.05);There were significant differences in the incidence of postoperative complications(5.26% vs 23.33%) and patient satisfaction(97.37% vs 80.00%) between the arthroscopic group and the plate group(P<0.05).
Conclusion  Arthroscopic double row anchor nail suture bridge technique for the treatment of simple humeral greater tuberosity avulsion fracture has satisfactory effect,can significantly improve the postoperative joint function of patients,postoperative pain degree is light,postoperative complications are less,and patient satisfaction is high.

Key words: arthroscopy, avulsion fracture of great tuberosity of humerus, pain, mini locking steel plate screw internal fixation, double-row anchor suture bridge technology