26dkou476 10.3205/26dkou476 urn:nbn:de:0183-26dkou4763 Meeting Abstract Ferrera Ferrera Andrea A

Università degli Studi di Torino, Ospedale Mondovì, Mondovì, Italien

author German Medical Science GMS Publishing House

Düsseldorf

610 20261020 engl This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 License. Dieser Artikel ist ein Open-Access-Artikel und steht unter den Lizenzbedingungen der Creative Commons Attribution 4.0 License (Namensnennung). M0659 476 Deutsche Gesellschaft für Orthopädie und Unfallchirurgie Deutsche Gesellschaft für Orthopädie und Orthopädische Chirurgie Deutsche Gesellschaft für Unfallchirurgie Berufsverband für Orthopädie und Unfallchirurgie Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2026) Poster | Kniechirurgie, Sportorthopädie und Arthroskopie Berlin 20261020 20261023 DKOU26_Abs_2415 TextObjectives and questions: Low-grade posterolateral corner (PLC) injuries are frequently associated with lateral meniscus instability and may result in persistent pain and rotational symptoms, despite subtle imaging findings. The aim of this study was to evaluate the clinical outcomes of a standardized all-inside arthroscopic repair for isolated Grade I–II PLC injuries with lateral meniscus instability and to compare popliteus-including versus popliteus-sparing constructs.Material and methods: Patients with isolated low-grade PLC injury and arthroscopically confirmed lateral meniscus instability were retrospectively reviewed. All patients underwent a standardized all-inside arthroscopic repair stabilizing the lateral meniscus at the popliteus hiatus. Clinical assessment was performed preoperatively and postoperatively and included varus stress test, dial test, posterolateral drawer test, grinding maneuver, and McMurray test. Patient-reported outcomes included the International Knee Documentation Committee Subjective Knee Form (IKDC-SKF), Tegner Activity Scale, visual analog scale (VAS) for pain, and patient acceptable symptom state (PASS). Failure was defined as the combined occurrence of revision surgery and a negative PASS response. Minimum follow-up was 24 months. Patients were then stratified into two groups according to the repair construct: popliteus-including (P+) or popliteus-sparing (P–).Results: Ninety-two patients (mean age: 25.4±6.8 years) were included in this study. Significant improvements were observed in all patient-reported outcome measures and clinical stability tests at final follow-up: IKDC increased from 39±5 to 85±4 and Tegner Activity Scale increased from 3±1 to 7±2 (all p < 0.001). VAS score improved from 6±2 to 1±1, with a positive PASS reported by 97% of patients. Return to sport was achieved in 90% of cases. Failure occurred in 3 patients (3.9%) and was associated with reinjury or non-adherence to the rehabilitation protocol. No statistically significant differences were observed between popliteus-including and popliteus-sparing constructs in terms of clinical stability, patient-reported outcomes, return to sport, or failure rates.Discussion and conclusions: All-inside arthroscopic repair of lateral meniscus instability associated with isolated low-grade PLC injury provides reliable clinical improvement, high return-to-sport rates, and low revision rates at mid-term follow-up. Incorporation of the popliteus tendon did not confer additional clinical benefit compared with popliteus-sparing repair, supporting a tailored surgical strategy based on intraoperative findings. 0 0 0 0