title: Temporal trends in primary and revision total knee and hip replacement in Taiwan.
abstract: BACKGROUND
  Total joint replacement (TJR) accounts for a substantial proportion of the total expenditures for health care. Efficient utilization of health resources requires information regarding the trends of TJR. This study investigated the association of TJR with the demographic characteristics in Taiwan from 1998 to 2009. It also estimated the demand for total knee replacement (TKR) and total hip replacement (THR) in the next two decades.
  
  
  METHODS
  International Classification of Diseases-9 (ICD-9) procedure codes were used to identify the data for primary and revision TKRs and THRs between the years 1998 and 2009 from Taiwan's National Health Insurance Research Database. Age- and sex-specific rates of such procedures were calculated. The trend in TJR rate and its future estimation were studied with regression analyses.
  
  
  RESULTS
  From 1998 to 2009, the number of primary TKRs increased by 99.1% and that of primary THRs increased by 11.3%. The number of revision TKRs increased by 3.1% and that of revision THRs decreased by 13.2%. Compared with their respective rates in 2005, the rates of primary TKR and primary THR were projected to increase by 508.2% and 69.7%, respectively, in 2030. The rate of revision TKR was predicted to increase by 75.3% and that of revision THR to decrease by 36.1%.
  
  
  CONCLUSIONS
  This study gives an insight into the current status burden of TJR in Taiwan. TJR rate projection would be useful for future planning of budget and resources for TJR in Taiwan.
authors: IRCAD-Taiwan, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan, ROC; Department of Orthopedics, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan, ROC.
authors: Atul
authors: A
authors: Kumar
authors: Department of Health Services Administration, China Medical University, Taichung, Taiwan, ROC.
authors: Wen-Chen
authors: WC
authors: Tsai
authors: Department of Orthopedics, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan, ROC. Electronic address: tedtstan@ms74.hinet.net.
authors: Tai-Sheng
authors: TS
authors: Tan
authors: Department of Healthcare Administration, Asia University, Taichung, Taiwan, ROC.
authors: Pei-Tseng
authors: PT
authors: Kung
authors: Department of Health Services Administration, China Medical University, Taichung, Taiwan, ROC.
authors: Li-Ting
authors: LT
authors: Chiu
authors: IRCAD-Taiwan, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan, ROC; Department of Orthopedics, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan, ROC.
authors: Ming-Chou
authors: MC
authors: Ku
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000191:economics / Q000706:statistics & numerical data / Q000639:trends*; D019645:Arthroplasty, Replacement, Knee / Q000191:economics / Q000706:statistics & numerical data / Q000639:trends*; D017281:Cost of Illness; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013624:Taiwan / Q000453:epidemiology
keywords: Taiwan; total hip arthroplasty; total joint arthroplasty; total joint replacement; total knee arthroplasty; trends in arthroplasty