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Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_21 | Pages 79 - 79
1 Dec 2016
O'Hara N Neufeld M Zhan M Zhai Y Broekhuyse H Lefaivre K Abzug J Slobogean G
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The effect of early surgery on hip fracture outcomes has received considerable study and although it has been suggested that early surgical treatment of these fractures leads to better patient outcomes, the findings are inconclusive. The American College of Surgeon's (ACS) National Surgical Quality Improvement Project (NSQIP) prospectively collects blinded, risk-adjusted patient-level data on surgical patients in over 600 participating hospitals worldwide. The primary objective of this study was to determine the proportion of ACS-NSQIP hospital patients that are currently being treated within the UK's National Institute for Health and Care Excellence (NICE) time to hip fracture surgery benchmark. The secondary objectives were to identify risk factors for missing the benchmark, and determine if the benchmark is associated with improved 30-day patient outcomes.

Patients that underwent hip fracture surgery between 2005–2013 and entered in the ACS-NSQIP database were included in the study. Counts and proportions were used to determine how frequently the NICE benchmark was met. Multivariate regression analysis was used to identify significant predictors of missing the NICE benchmark and determine if missing the benchmark was associated with 30-day mortality/complications rates.

26,006 patients met the study enrolment criteria. 71.4% of patients were treated within the NICE benchmark and 89.4% were treated by post-admission day two. Gender, dyspnea, infectious illness, bleeding disorders, preoperative hematocrit, preoperative platelet count, arthroplasty procedure type, race other than White, and hip fracture diagnosis were all statistically significant predictors of missing the benchmark (p<0.01). Meeting the NICE benchmark was not associated with reductions in major complications (OR=0.93, CI=0.83–1.05, p=0.23), nor a clinically significant difference in postoperative length of stay (LOS) (parameter estimate=0.77, p<0.01); however, it was associated with a decreased 30-day mortality (OR=0.88, CI=0.78–0.99, p=0.03) and the likelihood of minor complications (OR=0.92, CI=0.84–0.995, p=0.04).

ACS-NSQIP hospitals are currently compatible with the NICE benchmark. However, data from the ACS-NSQIP database suggests that surgical treatment within the NICE benchmark may be unnecessarily narrow. Extending the benchmark to post-operative day two did not significantly increase the risk of 30-day mortality and minor complications; nor did it extend the average LOS. Neither the NICE benchmark, nor the extended two-day standard, was associated with reductions in major complications. The findings highlight the importance of further prospective investigation to monitor the effect of time to surgery benchmarks.