Introduction:
Injury to the anterior cruciate ligament (ACL) causes disorders in the functional capabilities of the limb, both in daily life and during the attempts to return to full physical activity, and in a later period it contributes to the development of degenerative disease.

Aim:
Determination of the level of quality of life of patients after ACL reconstruction using the LARS synthetic ligament or autogenous ST/GR.

Material and methods:
Into the study were qualified 96 patients who had undergone reconstruction due to injury to the anterior cruciate ligament. The patients were divided into 2 groups according to the type of material used for reconstruction. The study group included 44 patients (45.8%) who were operated on using the LARS synthetic ligament. The control group were 52 patients (54.2%), who were implanted with an autogenous graft from semitendinous or gracilis muscle. The study was conducted using the SF36v2 questionnaire for assessment of the quality of life.

Results and conclusions:
The patients expressed the most negative evaluations of quality of life in the domain of General Health (GH) ( =62.5 scores) and Mental Health (MH) ( =70.4 scores), whereas most positive evaluations concerned the domain related with role limitations – caused both by physical health (Role Physical - RP) and emotional problems (Role Emotional - RE) ( ˃ 95 scores). Conclusions The quality of life of patients within the period of 4 years after the ACL reconstruction procedure using the LARS method and autogenous graft was on a similar, high level.