Epidemiology Of Total Knee Arthroplasty: A Retrospective Analysis Among 1146 Cases In Hefei City From 2008 To 2013

Background Knee osteoarthritis is prevalent among the middle-aged and senior people in Asian countries, however, the epidemiology survey of total knee arthroplasty is rarely reported in China. Objective To retrospectively analyze the data of patients undergoing total knee arthroplasty from 2008 to 2013 in Hefei City, and explore the distribution of age and gender of these patients. Methods A retrospective analysis among patients undergoing total knee arthroplasty from January 1st 2008 to December 31 st 2013 in Hefei City was performed. Data were extracted from the database of Medical Records Room of Relevant Hospitals in Hefei City, including the patient’s gender, age, disease duration, education level, body mass index and surgical site. In addition, more clinical information in one hospital were selected and analyzed, to compare the difference of clinical features between men and women. Results From 2008 to 2013, 1146 TKAs were performed in subjects due to OA. The rate of TKA has increased over the 6 yrs and was much higher in women than in men. The single-centre registry data revealed that there was no difference in age, disease duration and the body mass index at the time of surgery between men and women. Conclusions We found that the rate of TKA increased steadily from 2008 to 2013 in Hefei. The TKA rate in women was much higher than that in men. Risk factors that account for such disparity in TKA utilization need to be further investigated.