Background. Due to the increasing number of surgical knee constructions, there is a constant search for new solutions in surgical techniques and rehabilitation methods. The goal of rehabilitation is to enable the patient to return to normal activities of daily living and recover functional independence as soon as possible. Continuous passive motion (CPM) is one of the methods currently used for patients recovering from surgical reconstruction of the knee. Material and methods. Our research involved 60 patients who had received total endoprostheses due to degenerative changes in the knee, divided at random into two groups. Both groups received the same rehabilitation program except for CPM, which was applied only in group I. All patients were examined twice (before and after surgery) to measure body mass, range of movement in the knee joints (using a Sanders digital inclinometer), and muscle strength in the femoral quadriceps. Results. The outcome was more favorable in group I, where CPM was used, both in terms of the average range of movement and on the VAS scale. The patients in group I also reported greater satisfaction. CPM applied in early rehabilitation for this patients accelerates the recovery process. Conclusions. The introduction of CPM in the early post-surgery period contributes to shortening recover time, increases the range of movement in the operated knee, reduces pain and tension in soft tissues, facilitates healing, and accelerates the resorption of hematomas.