Abstract:

Objective To investigate the effectiveness and safety of knee joint lavage combined withpulsed radiofrequency for knee osteoarthritis. Methods A total of 49 patients with knee osteoarthritis were selectedin the Affiliated Hospital of Southwest Medical University from January 2019 to January 2021. According todifferent treatments，25 cases were assigned to knee lavage group（GX group）and 24 cases to knee lavage + pulsedradio frequency group（GX+PRF group）. The pain numerical rating scale（NRS），Western Ontario and McMaster University（WOMAC）osteoarthritis index were compared between the two groups before operation，1 week afteroperation，1 month after operation，3 months after operation，and 6 months after operation. The long⁃term efficacywas also evaluated. Results The NRS score and WOMAC index between the two groups were significantly decreasedafter treatment，and the decline in the GX+PRF group was more obvious. Compared with the GX group，the differ⁃ence was significant in 1 month after surgery（P < 0.05）. At 6 months postoperatively，the clinical efficacy of theGX+PRF group was better than that of the GX group. Conclusion Knee lavage combined with pulsed radiofrequencywas effective and safe for knee osteoarthritis. The medium and long⁃term effect was better than knee lavage alone，and it is worthy of clinical application and promotion.

Key words:

knee joint, osteoarthritis, knee lavage, pulsed radiofrequency