Problem of research. Joints – important part of human movement apparatus. Therefore joint traumas are a serious problem both from medical and social point of view. In case of mechanical trauma very often knee joint is hurt. Most often young people suffer from traumas, particularly sportsmen when knee joint cruciate ligaments are hurt. In such situations as one of the most effective physioterapical treatment methods cryotherapy is applied. In 2004 in Lithuania particularly low temperature medical CO2 gas (-78 0C) was applied, sprinkled with 50 bar power. Dry bacteriostatic gas which during a very short time of application (30–60 sec) cause thermal shock in tissues – cool down tissues in a very short time from +5 to +2 0C. Theoretical background of cryotherapy and practical experience in Lithuania are not widely described that’s why it is necessary to make more intense research, to generalize its results, to seek for most effective methods of research stimulating faster rehabilitation of patients’ working capacity. Objective of study. Taking into consideration the fact that cryotherapy is very new and very live in Lithuania, it was selected as the theme for Master’s thesis, its objective is to estimate the influence of cryotherapic treatment on the functions of knee joint functions after cruciate ligament reconstruction. Task of study: to evaluate the dynamics of pain intensity experienced by patients, knee joint movement amplitude dynamics, knee joint oedema scope dynamics... [to full text]