Clinical outcomes of arthroscopic three-point interlocking suture fixation technique for oblique radial tears of the lateral meniscus posterior root
10.3969/j.issn.1000-6710.2025.08.001
- VernacularTitle:关节镜下三点式套结法缝合治疗外侧半月板后根斜放射裂的临床疗效
- Author:
Qingyang MENG
1
;
Liankui YU
;
Yong MA
;
Weili SHI
;
Xiaoyue FU
Author Information
1. 北京大学第三医院运动医学科,北京大学运动医学研究所,运动医学关节伤病北京市重点实验室,运动创伤治疗技术与器械教育部工程研究中心(北京 100191)
- Publication Type:Journal Article
- Keywords:
lateral meniscus;
posterior root;
oblique radial tear;
extrusion;
arthroscopy
- From:
Chinese Journal of Sports Medicine
2025;44(8):603-608
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the clinical outcomes of arthroscopic three-point interlocking suture fixation technique for oblique radial tears of the lateral meniscus posterior root(LMPR).Methods A retrospective analysis was conducted on 23 patients who underwent arthroscopic three-point suture fixa-tion for oblique radial tears of the LMPR combined with anterior cruciate ligament(ACL)reconstruc-tion by the authors'team between August 2021 and October 2022.Data on operative duration,hospi-tal stay,time to initial postoperative weight-bearing exercise,and complications were recorded.Preoper-atively and at 6 months,1 year,and 2 years postoperatively,knee function was assessed using the In-ternational Knee Documentation Committee(IKDC)score and Lysholm score.Moreover,the anterior knee stability was evaluated via the Lachman test and anterior tibial translation distance.Meanwhile,LMPR healing and lateral meniscus extrusion(LME)values were assessed based on magnetic reso-nance imaging(MRI).Results All 23 patients were successfully followed up and their meniscofemoral ligaments were intact.The mean operative duration,hospital stay and time to initial postoperative weight-bearing exercise was 77.3±10.6 minutes,2.7±0.5 days,and 10.8±6.7 hours,respective-ly.Moreover,both the IKDC and Lysholm scores at 6 months,1 year,and 2 years postoperatively im-proved significantly compared to preoperative values(P<0.05).The IKDC score at 1 year postoperative-ly was significantly higher than that at 6 months(P<0.05),and both the IKDC and Lysholm scores at 2 years postoperatively were significantly higher than those at 6 months(P<0.05).Meanwhile,the Lachman tests were positive in all patients preoperatively and negative postoperatively.Postoperative an-terior tibial translation distance reduced significantly compared to preoperative measurements(P<0.05).Moreover,the clinical healing rate of the LMPR was 100%,while the radiographic healing rate was 91.3%.However,the postoperative LME value was significantly lower compared to the preoperative one(P<0.05).Conclusion Arthroscopic three-point interlocking suture fixation is effective and safe in treating oblique radial tears of the LMPR,improving knee function and healing rate,and significantly reducing LME values.
