Revision total hip arthroplasty in the United States: national trends and in-hospital outcomes.

Purpose: With the increasing number of primary total hip arthroplasties (THA) being performed, the frequency of revision surgery is also expected to increase. We analysed the immediate in-hospital complications and epidemiologic data of 3,469 revision and 18,186 primary THA cases.

Methods: The National Hospital Discharge Survey (NHDS) was evaluated between 2001 and 2010 for patients who underwent revision and primary THA.

National trends and in hospital outcomes for total hip arthroplasty in avascular necrosis in the United States.

Purpose: While a majority of total hip arthroplasty (THA) is performed for osteoarthritis (OA), a significant portion is performed in the setting of avascular necrosis (AVN). The purpose of this study is to evaluate recent trends, patient demographics, and in hospital outcomes for primary THA in the setting of AVN in the United States.

Methods: The National Hospital Discharge Survey database was searched for patients admitted to US hospitals after a primary THA for the years 2001-2010.