Objective To explore the application effect of arthroscopic knotless suture bridge technique in the treatment of patients with large rotator cuff tear.Methods Retrospective analysis of clinical data from 213 patients with large rotator cuff tear in first department of orthopedics of Qinhuangdao Military Hospital from January 2022 to October 2023.According to different treatment methods,they were divided into conventional knot group(n=77)and knotless group(n=136).The conventional knot group was treated with arthroscopic knot suture bridge technique,while the knotless group was given arthroscopic knotless suture bridge technique.The treatment effects were compared.Postoperative complications were recorded and the occurrence of rotator cuff re-tear was followed up.Results At 6 months after treatment,the SF-MPQ pain scores in conventional knot group and knotless group significantly reduced(P＜0.05),and the Constant score,UCLASS score and ASES shoulder joint score and the angles of shoulder anteflexion,abduction,internal rotation and external rotation in both groups were significantly improved at 6 months after treatment(P＜0.05).However,there was no significant difference in SF-MPO scores,Constant,UCLASS and ASES scores between the two groups compared with those before surgery(P＞0.05).The incidence of complications and retear were 4.41％and 1.47％in the no-nodule group,and 11.69％and 6.49％in the conventional nodule group,respectively,and there was statistical significance between the two groups(P＜0.05).Conclusion Arthroscopic knot and knotless suture bridge techniques can promote joint function recovery of large rotator cuff tear,and both have high minimally invasive value.However,knotless suture bridge technique has greater advantages in reducing complications and re-tear rate.

Objective To explore the application effect of arthroscopic knotless suture bridge technique in the treatment of patients with large rotator cuff tear.Methods Retrospective analysis of clinical data from 213 patients with large rotator cuff tear in first department of orthopedics of Qinhuangdao Military Hospital from January 2022 to October 2023.According to different treatment methods,they were divided into conventional knot group(n=77)and knotless group(n=136).The conventional knot group was treated with arthroscopic knot suture bridge technique,while the knotless group was given arthroscopic knotless suture bridge technique.The treatment effects were compared.Postoperative complications were recorded and the occurrence of rotator cuff re-tear was followed up.Results At 6 months after treatment,the SF-MPQ pain scores in conventional knot group and knotless group significantly reduced(P＜0.05),and the Constant score,UCLASS score and ASES shoulder joint score and the angles of shoulder anteflexion,abduction,internal rotation and external rotation in both groups were significantly improved at 6 months after treatment(P＜0.05).However,there was no significant difference in SF-MPO scores,Constant,UCLASS and ASES scores between the two groups compared with those before surgery(P＞0.05).The incidence of complications and retear were 4.41％and 1.47％in the no-nodule group,and 11.69％and 6.49％in the conventional nodule group,respectively,and there was statistical significance between the two groups(P＜0.05).Conclusion Arthroscopic knot and knotless suture bridge techniques can promote joint function recovery of large rotator cuff tear,and both have high minimally invasive value.However,knotless suture bridge technique has greater advantages in reducing complications and re-tear rate.

Objective To explore the clinical efficacy of the arthroscopic"Three Suture-Trident Star"technique in treating avulsion fractures of the distal point of the anterior cruciate ligament(ACL).Meth-ods A retrospective analysis was conducted on 46 patients undergoing the arthroscopic"Three Suture-Trident Star"technique for ACL distal point avulsion fractures between January 2019 and January 2022.The physical examinations(including stability and mobility),International Knee Documentation Committee(IKDC)scores,Tegner activity level scores,visual analogue scale(VAS)scores,postopera-tive satisfaction,complications,and return-to-sports time were compared among before the operation,as well as 6 and 12 months after the operation,respectively.Results The average age of the 46 pa-tients,26 male and 20 female,was 37.6±10.3 years.Their average follow-up period was 14.4±2.7 months.The IKDC scores before surgery and at 6 and 12 months postoperatively were 59.7±5.4,86.1±5.7,and 89.5±5.0(P<0.001),respectively,the corresponding Lysholm scores,Tegner scores and VAS scores were 56.7±5.0,84.8±4.4 and 90.6±4.2(P<0.001),0.5±0.3,4.6±1.7 and 6.6±2.1(P<0.001),as well as 7.1±1.1,1.7±1.0 and 0.7±0.8(P<0.001),respectively.Postoper-ative satisfaction was rated as excellent in 42 cases,good in 3 cases,and fair in 1,with a good-to-excellent rate of 97.8%.The physical examinations at 6 and 12 months postoperatively were of nega-tive results in the anterior drawer and Lachman tests,while the average return-to-sports time was 8.3±2.5 months.All patients had primary healing of the avulsion fractures without any postoperative com-plications such as infection,joint stiffness,displacement or loosening of the fracture block,or mal-union,and none required secondary surgery.Conclusion The arthroscopic"Three Suture-Trident Star"technique demonstrates significant clinical efficacy in treating patients with avulsion fractures of the ACL distal point,effectively restoring postoperative joint stability and function.