The relation between total joint arthroplasty and risk for serious cardiovascular events in patients with moderate-severe osteoarthritis: propensity score matched landmark analysis.

Abstract:

OBJECTIVE:To examine whether total joint arthroplasty of the hip and knee reduces the risk for serious cardiovascular events in patients with moderate-severe osteoarthritis. DESIGN:Propensity score matched landmark analysis. SETTING:Ontario, Canada. PARTICIPANTS:2200 adults with hip or knee osteoarthritis aged 55 or more at recruitment (1996-98) and followed prospectively until death or 2011. MAIN OUTCOME MEASURE:Rates of serious cardiovascular events for those who received a primary total joint arthroplasty compared with those did not within an exposure period of three years after baseline assessment. RESULTS:The propensity score matched cohort consisted of 153 matched pairs of participants with moderate-severe arthritis. Over a median follow-up period of seven years after the landmark date (start of the study), matched participants who underwent a total joint arthroplasty during the exposure period were significantly less likely than those who did not to experience a cardiovascular event (hazards ratio 0.56, 95% confidence interval 0.43 to 0.74, P<0.001). Within seven years of the exposure period the absolute risk reduction was 12.4% (95% confidence interval 1.7% to 23.1%) and number needed to treat was 8 (95% confidence interval 4 to 57 patients). CONCLUSIONS:Using a propensity matched landmark analysis in a population cohort with advanced hip or knee osteoarthritis, this study found a cardioprotective benefit of primary elective total joint arthroplasty.

journal_name

BMJ

authors

Ravi B,Croxford R,Austin PC,Lipscombe L,Bierman AS,Harvey PJ,Hawker GA

doi

10.1136/bmj.f6187

subject

Has Abstract

pub_date

2013-10-30 00:00:00

pages

f6187

eissn

0959-8138

issn

1756-1833

journal_volume

347

pub_type

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