The effect of hot intermittent cupping on pain, stiffness and disability of patients with knee osteoarthritis

Objective: The aim of this study was to investigate the effect of hot intermittent cupping on pain, stiffness and inability of patients with knee osteoarthritis (KO). Methods: The present study was a clinical trial, which was performed on 38 patients with KO referring to Gonabad Rheumatology Specialty Clinic. Based on permutation block method, the research units were divided into cupping therapy and control groups. For the cupping therapy group, four sessions of cupping therapy were performed every four days. To collect data, the form of demographic information, Visual Analogue Scale (VAS) and the Western Ontario and McMaster (WOMAC) osteoarthritis scale were used, and the data were analyzed by SPSS software v. 16 using descriptive statistics and independent t-test, paired t-test, Chi-square test and Fishers exact test with a significance level of P < 0.05. Results: Findings showed that there was no significant difference between the cupping therapy and control groups in terms of demographic characteristics and they were homogeneous. Findings indicated that, based on VAS, the mean pain intensity in the left (P < 0.001) and the right knees (P < 0.001), as well as based on WOMAC, stiffness (P = 0.006), pain intensity (P < 0.001) and disability (P < 0.001) in the cupping therapy group significantly decreased compared to the control group. Conclusion: Findings showed that hot intermittent cupping therapy reduced the pain intensity, stiffness and disability in patients with KO.