[Arthroscopic Haglund deformity exostosis resection].

Objective: Treatment of symptomatic Achilles tendinopathy.

Indications: Impingement between the calcaneus and the Achilles tendon.

Contraindications: General contraindications. Active soft tissue infection.

Surgical technique: Incision medial and lateral to the distal portion of the Achilles tendon at the level of the lower ankle joint, if necessary under X‑ray control. Blunt preparation of the two portals (laterally, taking into account the course of the sural nerve) towards the posterior process of the calcaneus with a curved clamp. Insertion of the arthroscope into the lateral portal and the shaver into the medial portal. Resection of the bursa and visualization of the insertion area of the tendon. Insertion of the bone acromionizer or a burr to resect the offending bone; changing the portal and removing bone portions on the medial side of the calcaneus. If necessary, additional transachillary incision to remove the bone near the insertion. Wound closure.

Postoperative management: Immobilization of the foot in equinus position for 3-5 days in a dorsal splint. Retention in a walker for a further 2 weeks after the swelling has subsided. Weight bearing after 3 weeks.

Results: A total of 26 patients were retrospectively evaluated with a mean follow-up time of 25 ± 6 months. The Foot Function Index (FFI) improved from 62 preoperatively to 7 points at the last follow-up examination. The final visual analog scale foot and ankle (VAS-FA) score was recorded as 89. Residual symptoms were present in 15% of patients.