Association between provider volume and comorbidity on hospital utilization and outcomes of total hip arthroplasty among National Health Insurance enrollees.

Background/purpose: The impact of provider volume, comorbidity and adverse outcomes on hospital utilization of total hip arthroplasty (THA) has not yet been studied scientifically in Taiwan. This study aimed to examine the relationship between surgeon/hospital volume, perioperative complications, acute infections and hospital utilization for patients who underwent primary (THA).

Methods: We analyzed National Health Insurance (NHI) annual reimbursement data for all hospital admissions due to primary THA between January 2005 and December 2006.