In-Office Needle Arthroscopy for the Treatment of Anterior Ankle Impingement Yields High Patient Satisfaction With High Rates of Return to Work and Sport

Published:September 24, 2021DOI:


      To evaluate the clinical outcomes of in-office needle arthroscopy (IONA) for the treatment of anterior ankle impingement in the office setting and also evaluate patient experience of the IONA procedure.


      A prospectively collected database of 31 patients undergoing IONA for the treatment of anterior ankle impingement between January 2019 and January 2021 was retrospectively reviewed. Inclusion criteria for this study were patients ≥18 years of age, clinical history, physical examination, radiographic imaging, and magnetic resonance imaging findings consistent with anterior ankle impingement for which each patient underwent IONA and had a minimum of 12-month follow-up. Clinical outcomes were evaluated using the following methods preoperatively and at final follow-up: the Foot and Ankle Outcome Scores (FAOS) and Patient-Reported Outcomes Measurement Information System (PROMIS) Pain Interference and Pain Intensity domains. A 5-point Likert scale regarding patient satisfaction with their IONA procedure was evaluated at final follow-up. Wilcoxon signed-rank test was performed to compare preoperative and postoperative outcome scores.


      In total, 31 patients were included in this study, including 18 male and 13 female, with a mean age of 41.7 ± 15.5 years (range, 17-69 years) and mean body mass index of 27.3 ± 5.7 (range, 19.37-41.5). The mean follow-up time was 15.5 ± 4.9 months. The mean postoperative FAOS-reported symptoms, pain, daily activities, sports activities, and quality of life were 79.4 ± 11.9, 82.9 ± 15.3, 83.5 ± 15.4, 71.9 ± 18.5 and 64.3 ± 21.4 at final follow-up respectively. Minimal clinically important difference was achieved by 84% of patients for FAOS pain, 77% for FAOS symptoms, 75% for FAOS Quality of Life, 74% for FAOS sports, 65% for PROMIS Pain Interference, 61% for FAOS Activities of Daily Living, and 42% for PROMIS Pain Intensity. Lastly, 29 patients (94 %) expressed willingness to undergo the same procedure again.


      The current study demonstrates that IONA treatment of anterior ankle impingement results in significant pain reduction, a low complication rate and excellent patient reported outcomes with high rates of return to work/sport. Additionally, IONA for anterior ankle impingement leads to high patient satisfaction with a significant willingness to undergo the same procedure again.

      Level of Evidence

      IV, Case series study.
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