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Associations of timing of surgery with postoperative length of stay, complications, and functional outcomes 3-6 years after operative fixation of closed ankle fractures.
Injury 2017 July
AIMS: To evaluate the associations of timing of surgery with postoperative length of stay (LOS), complications, and functional outcomes 3-6 years after open reduction and internal fixation (ORIF) in closed ankle fractures.
PATIENTS AND METHODS: Historical cohort study by chart review of 1011 patients for postoperative LOS and complications; 959 individuals were invited to participate in a postal survey with functional outcomes questionnaires. Complications were classified as perioperative, early, or late. The associations with time from trauma to surgery (<8h, 8h to 6days, >6days) were assessed with (1) postoperative LOS using multivariable random-effects negative binomial regression, (2) complications using multivariable binary and multinomial logistic regression, and (3) three different functional outcomes using multivariable linear regression.
RESULTS: The mean patient age was 51.4 (range 18-94) years, 556 (55%) were female, and 567 individuals (59%) responded to the questionnaire. There were no statistically significant associations between time to surgery and either postoperative LOS or complications after adjusting for several patient and fracture characteristics. Patients operated on >6days after the trauma had significantly worse scores on the Olerud and Molander Ankle Score (OMAS) (p=0.039) and somewhat worse, but non-significant, scores on the Lower Extremity Functional Scale (LEFS; p=0.573) and the Self-Reported Foot and Ankle Score (SEFAS) scale (p=0.161) than those operated on <8h after trauma.
CONCLUSION: In ankle-fracture surgery, there was no apparent association between timing of surgery and postoperative LOS or complications. A delay of surgery for 8h to 6days resulted in similar functional outcomes after 3-6 years suggesting there may be a safe window of time for surgery of up to 6days after trauma that can be used to plan and perform the final ORIF.
PATIENTS AND METHODS: Historical cohort study by chart review of 1011 patients for postoperative LOS and complications; 959 individuals were invited to participate in a postal survey with functional outcomes questionnaires. Complications were classified as perioperative, early, or late. The associations with time from trauma to surgery (<8h, 8h to 6days, >6days) were assessed with (1) postoperative LOS using multivariable random-effects negative binomial regression, (2) complications using multivariable binary and multinomial logistic regression, and (3) three different functional outcomes using multivariable linear regression.
RESULTS: The mean patient age was 51.4 (range 18-94) years, 556 (55%) were female, and 567 individuals (59%) responded to the questionnaire. There were no statistically significant associations between time to surgery and either postoperative LOS or complications after adjusting for several patient and fracture characteristics. Patients operated on >6days after the trauma had significantly worse scores on the Olerud and Molander Ankle Score (OMAS) (p=0.039) and somewhat worse, but non-significant, scores on the Lower Extremity Functional Scale (LEFS; p=0.573) and the Self-Reported Foot and Ankle Score (SEFAS) scale (p=0.161) than those operated on <8h after trauma.
CONCLUSION: In ankle-fracture surgery, there was no apparent association between timing of surgery and postoperative LOS or complications. A delay of surgery for 8h to 6days resulted in similar functional outcomes after 3-6 years suggesting there may be a safe window of time for surgery of up to 6days after trauma that can be used to plan and perform the final ORIF.
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