Functional and radiological outcomes in revision total knee arthroplasty

Background: Following a primary total knee arthroplasty, patients with rheumatoid arthritis and osteoarthritis are reported to have comparable clinical prognoses and overall failure rates. Information on revision techniques is limited, despite the fact that the causes of failure and survivorship for primary total knee arthroplasty (TKA) have been well investigated. This study, which investigated the radiological and functional outcomes of revision total knee arthroplasty, was conducted as a consequence of these factors. Methods: This observational study was conducted in the Department of Orthopedics in Sapthagiri institute of medical sciences and research centre among cases who underwent revision TKA during November 2022 to June 2023. A total of forty cases who underwent RTKA during the study period were included in the study. After taking the written informed consent, principal investigator assessed the detailed history of the participants and clinically examined the patients. Pre and post-operative functional and radiological outcomes were measured. The data was entered in excel sheet and analyzed using statistical package for the social sciences (SPSS) - version 19. Results: Pre op and post-operative HSS score, KS score including the sub-scales like objective knee score, patient satisfaction score, patient expectations core and functional activity score and radiological outcome scores were found to be statistically improved post-operatively. Also, pain was markedly reduced postoperatively based on VAS scale. However, only one case died who underwent two stages TKA, which was not statistically significant. Conclusions: We infer that further improvement in prevention and management of infection following TKA can helps to prevent the proportion of cases requiring RTKA and thus much attention is warranted on this dreaded complication.