Excellent Clinical Outcomes and Rapid Return to Activity Following In-Office Needle Tendoscopy for Chronic Achilles Tendinopathy.

Purpose: To assess outcomes following Achilles in-office needle tendoscopy (IONT) for the treatment of chronic Achilles tendinopathy (cAT) at a minimum 12-month follow-up. Methods: A retrospective case series was conducted to evaluate patients who underwent Achilles IONT for cAT between January 2019 and December 2022. Inclusion criteria were patients ≥18 years of age and clinical history, physical history, and magnetic resonance imaging findings consistent with cAT who did not respond to a minimum of 3 months of conservative management for which each patient underwent Achilles IONT and had a minimum 12-month follow-up. Clinical outcomes were evaluated using the Victorian Institute of Sport Assessment-Achilles and visual analog scale scores. Patient satisfaction was measured at the final follow-up visit with a 5-point Likert scale. Results: Twelve patients (13 Achilles) with a mean age of 50.9 ± 14.6 years were included in the study. The mean follow-up time was 26.3 ± 6.3 months. The mean Victorian Institute of Sport Assessment-Achilles scores improved from a preoperative score of 35.6 ± 5.9 to a postoperative score of 83.6 ± 14.1 ( Conclusions: This retrospective review demonstrated that Achilles IONT for the treatment of cAT results in significant improvements in subjective clinical outcomes and a low complication rate together with high patient satisfaction scores at short-term follow-up. Level of Evidence: Level IV, therapeutic case series.