Endoscopic Flexor Hallucis Longus Transfer vs Minimally Invasive Repair in Acute Achilles Tendon Rupture

Inclusion Criteria: * Signed Consent Form * Age between 18-75 years * Acute Achilles Tendon Rupture (\<3 weeks) * Surgical Management with Endoscopic Flexor Hallucis Longus transfer or Minimally Invasive primary tendon repair * More than 12 months postoperative follow-up * Patients operated after 2015 Exclusion Criteria: * Inability or Unwillingness to cooperate * Medically unfit for examination (e.g. due to terminal illness) * Age less than 18 or more than 75 years * Non-operative Management as definitive treatment * Surgical Management other than the ones described in the inclusion criteria * Neglected Achilles Tendon Rupture (\>3 weeks) * Bilateral Achilles Tendon Rupture * Patients operated before 2015 * Comorbidities interfering with the secondary outcomes (e.g. Venous insufficiency resulting in lower limb excessive edema interferes with ankle and calf circumference, rheumatoid arthritis and/or previous foot and ankle surgery interferes with active and passive range of motion of the ankle, etc)