Background: Considering the increasing importance of the new method of arthroplasty in the treatment of knee osteoarthritis and the possibility of its two-stage and one-stage process, as well as considering that each method has its own merits, this study examines these disadvantages and comparisons.
Methods: In this cross-sectional study, 119 patients undergoing bilateral knee arthroplasty surgery were enrolled in the study, in the first group with the simultaneous process (60) and the second group who were willing two stages (from a period of three months or more) 59 patients, Then the treatment outcomes were compared in both groups.
Results: The mean duration of hospitalization in the simultaneous group was significantly lower than that in the staged group (P < 0.05). The average surgery cost in the staged method was significantly higher than that of the same group (P < 0.05). The mean knee motion range and patients' satisfaction in the two groups did not significantly differ. In the short term, patients' satisfaction was higher in the stage method.
Conclusion: The simultaneous approach to hospitalization time and costs was better than the staged method, but in the long-term, there was a significant difference in other aspects.
Keywords: Arthroplasty; knee; osteoarthritis; surgery.
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