Clinical Outcomes of All-Inside Arthroscopic Lateral Ankle Ligament Reconstruction for Chronic Lateral Ankle Instability: A Prospective Series with Minimum 12 Month Outcomes

Category: Ankle; Sports Introduction/Purpose: Chronic lateral ankle instability (CAI) is a common condition that can be effectively treated with lateral ankle ligament reconstruction to restore ankle stability and function. The aim was to assess the functional outcomes of arthroscopic lateral ligament reconstruction using the Manchester-Oxford Foot Questionnaire (MOXFQ), Visual Analog Score (VAS) and Euroqol-5D-5L (EQ-5D) patient-reported outcome measures (PROMs). Methods: This prospective series included 36 consecutive patients who underwent isolated arthroscopic lateral ligament reconstruction for CAI between November 2020 and November 2022 with minimum 12-month follow up. All patients completed the MOXFQ, VAS, and EQ5D PROMs preoperatively, and 12 months postoperatively. The MOXFQ is a validated foot and ankle-specific PROM that assesses foot and ankle function, the VAS measures pain and the EQ5D evaluates general health-related quality of life Results: Patients were followed up for 12-25 months. In all patients, there was significant improvement in all post-operative PROMs (p < 0.05). The MOXFQ index decreased from 59.1±19.2 to 13.5±18.1 (p < 0.01), EQ-5D index increased from 0.607±0.224 to 0.854±0.175 (p < 0.01) and VAS pain decreased from 36.6±22.3 to 13.6±18.4 (p < 0.01). Conclusion: Arthroscopic lateral ankle ligament reconstruction is an effective treatment for chronic ankle instability, with significant improvements in clinical and health-related quality of life outcomes.