1. I Department of Orthopaedic and Trauma Surgery, District Hospital of Orthopaedics and Trauma Surgery, Piekary Śląskie, Poland
2. Institute of Physical Education, Tourism and Physiotherapy, University of Jan Długosz in Częstochowa, Częstochowa, Poland
3. VI Department of Trauma and Orthopaedics, District Hospital of Orthopaedics and Trauma Surgery, Piekary Śląskie, Poland
4. VIII Department of Trauma and Orthopaedics, District Hospital of Orthopaedics and Trauma Surgery, Piekary Śląskie, Poland
5. Department of Biochemistry, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia in Katowice, Zabrze, Poland