Background: Chronic ruptures of the Achilles tendon may lead to symptomatic weakness, despite rehabilitation. Open reconstruction yields good outcome but has a high complication rate, notably wound problems. Endoscopically assisted free semitendinosus transfer restores ankle and preserves first metatarsophalangeal joint (MTPJ) function. Indications: The main indication for the procedure is symptomatic chronic rupture of the Achilles tendon with a palpable tendon gap. Technique Description: The procedure can be split into 4 stages: graft harvest, calcaneum and tunnel preparation, proximal graft attachment, and finally graft passage and screw insertion. Discussion/Conclusion: Following reconstruction, patients use a cast in full plantar flexion for 2 weeks, then a graduated walker for full weight-bearing.