Association of BMI and risk of revision or 90 day mortality following total hip replacement

The Association of Body Mass Index with Risk of Long-Term Revision and 90-Day Mortality Following Primary Total Hip Replacement: Findings from the National Joint Registry for England, Wales, Northern Ireland and the Isle of Man.
J Bone Joint Surg Am.100(24):2140-2152. 19 Dec  2018

• A population-based, longitudinal cohort study of the National Joint Registry for England, Wales, Northern Ireland and the Isle of Man, to assess the influence of BMI on the risk of primary total hip replacement revision and 90-day mortality. 38% of the patients were classified as obese. 
• The authors conclude that, although long-term revision rates following total hip replacement were higher among obese patients, they believe that the rates remained acceptable by contemporary standards and were balanced by a lower risk of 90-day mortality.