 The key variables in the assessment will be radiostereometric RSA measurements of the syndesmosis width, CT imaging of the ankle mortise and standard radiographic evaluation of the syndesmosis width and ankle mortise. Clinical outcome of the ankle fracture treatment will be measured using standardized outcome questionnaires RAND-36, AAOS Foot and Ankle Outcome Instrument, Olerud and Molander score, VAS pain scale. The follow-up of the patients will be 52 weeks. The metal screw will be removed 8 weeks after fracture surgery. The expected mechanical integrity of the bioabsorbable screw is 6 - 8 weeks, while the complete absorption time of the bioabsorbable screw in human body is expected to be approximately two years 