Title:Evaluation of Disease Severity and Health-Related Quality of Life in Patients with Rheumatoid Arthritis Undergoing Total Knee Arthroplasty
Volume: 17
Issue: 1
Author(s): Alireza Rahimnia, Gholamhossein Alishiri, Mohammad E. Bayatpoor, Mohammad A. Hosseini, Shahriar Najafizadeh-Sari, Habib Yaribeygi*Amirhossein Sahebkar*
Affiliation:
- Research Center of Physiology, Semnan University of Medical Sciences, Semnan,Iran
- Halal Research Center of IRI, FDA, Tehran,Iran
Keywords:
MOS SF-36, WOMAC, osteoarthritis, rheumatoid arthritis, quality of life, arthroplasty.
Abstract:
Background: The Total Knee Arthroplasty (TKA) is one of the most common surgical
intervention in patients with osteoarthritis (OA) and rheumatoid arthritis (RA). Previous studies
suggested a significant improvement in health status after TKA surgery. But we have little data
about the Iranian population undergone TKA. In the current clinical study, we evaluated postoperatively
health status using reliable tools of MOS SF-36 and WOMAC in OA and RA patients
undergoing TKA.
Methods: In this cohort study, patients with OA and/or RA who were candidates for TKA surgery
were included. Using two reliable questionnaires, i.e., WOMAC and SF-36, the quality of life of
patients was examined during a period of six months (three monthly intervals) after the surgery. All
data were analyzed using IBM SPSS Statistics. Kolmogrov-Smirnov, Kendall’s tau, chi-square test
and K-related Non-parametric tests were used.
Results: Of the 2126 patients who underwent TKA, there were 2024 diagnosed osteoarthritis and
102 validated RA over one year. The mean ± SD of age and the average BMI were 68.0 ± 7.0 BMI
28.5 kg/m2, respectively. Regarding comorbidities and concurrent disorders, about 14% of cases
were diabetic, 42% had cardiovascular diseases, 3% had respiratory diseases, and 12% involved
with gastrointestinal diseases. The result of SF-36 dramatically increased during follow up. The
central distributions of all domains in the SF-36 questionnaire indicated that most scores increased
during the time after surgery. As a consequence, WOMAC and MOS FS-36 indicated statistically
significant changes after TKA for those who are suffering from RA or OA.
Conclusion: TKA is an effective surgical process, which improves the quality of life in OA and/or
RA. In addition, WOMAC and SF-36 examining tools are likely reliable tools with similar results
to assess patients’ quality of life after TKA surgery.
