Anirudh K Gowd1, Joseph N Liu2, Daniel D Bohl3, Avinesh Agarwalla4, Brandon C Cabarcas5, Brandon J Manderle3, Grant H Garcia3, Brian Forsythe3, Nikhil N Verma6. 1. Wake Forest University Baptist Medical Center, Winston-Salem, North Carolina, U.S.A. 2. Loma Linda University Medical Center, Loma Linda, California, U.S.A. 3. Department of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois, U.S.A. 4. Westchester Medical Center, Valhalla, New York, U.S.A. 5. University of South Florida Health, Tampa, Florida, U.S.A. 6. Department of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois, U.S.A.. Electronic address: Nikhil.Verma@rushortho.com.
Abstract
PURPOSE: To determine whether operative time is an independent risk factor for 30-day complications after arthroscopic surgical procedures on the knee. METHODS: The American College of Surgeons National Surgical Quality Improvement Program database was queried between 2005 and 2016 for all arthroscopic knee procedures including lateral release, loose body removal, synovectomy, chondroplasty, microfracture, and meniscectomy. Cases with concomitant procedures were excluded. Correlations between operative time and adverse events were controlled for variables such as age, sex, body mass index, patient comorbidities, and procedure using a multivariate Poisson regression with robust error variance. RESULTS: A total of 78,864 procedures met our inclusion and exclusion criteria. The mean age of patients was 51.0 ± 14.3 years; mean operative time, 31.2 ± 18.1 minutes; and mean body mass index, 31.0 ± 7.8. Arthroscopic lateral release (coefficient, 5.8; 95% confidence interval [CI], 4.8-6.8; P < .001), removal of loose bodies (coefficient, 4.2; 95% CI, 3.2-5.3; P < .001), synovectomy (coefficient, 1.8; 95% CI, 1.2-2.3; P < .001), and microfracture (coefficient, 6.5; 95% CI, 5.8-7.2; P < .001) had significantly greater durations of surgery in comparison with meniscectomy. The overall rate of adverse events was 1.24%. After we adjusted for demographic characteristics and the procedure, a 15-minute increase in operative duration was associated with an increased risk of transfusion (relative risk [RR], 1.5; 95% CI, 1.3-1.8; P < .001), death (RR, 1.6; 95% CI, 1.2-2.1; P = .005), dehiscence (RR, 1.6; 95% CI, 1.2-2.2; P = .002), surgical-site infection (RR, 1.3; 95% CI, 1.2-1.3; P = .001), sepsis (RR, 1.3; 95% CI, 1.2-1.4; P < .001), readmission (RR, 1.1; 95% CI, 1.1-1.2; P < .001), and extended length of stay (RR, 1.4; 95% CI, 1.3-1.4; P < .001). CONCLUSIONS: Marginal increases in operative time are associated with an increased risk of adverse events such as surgical-site infection, sepsis, extended length of stay, and readmission. Efforts should be made to maximize surgical efficiency. LEVEL OF EVIDENCE: Level IV, retrospective database study.
PURPOSE: To determine whether operative time is an independent risk factor for 30-day complications after arthroscopic surgical procedures on the knee. METHODS: The American College of Surgeons National Surgical Quality Improvement Program database was queried between 2005 and 2016 for all arthroscopic knee procedures including lateral release, loose body removal, synovectomy, chondroplasty, microfracture, and meniscectomy. Cases with concomitant procedures were excluded. Correlations between operative time and adverse events were controlled for variables such as age, sex, body mass index, patient comorbidities, and procedure using a multivariate Poisson regression with robust error variance. RESULTS: A total of 78,864 procedures met our inclusion and exclusion criteria. The mean age of patients was 51.0 ± 14.3 years; mean operative time, 31.2 ± 18.1 minutes; and mean body mass index, 31.0 ± 7.8. Arthroscopic lateral release (coefficient, 5.8; 95% confidence interval [CI], 4.8-6.8; P < .001), removal of loose bodies (coefficient, 4.2; 95% CI, 3.2-5.3; P < .001), synovectomy (coefficient, 1.8; 95% CI, 1.2-2.3; P < .001), and microfracture (coefficient, 6.5; 95% CI, 5.8-7.2; P < .001) had significantly greater durations of surgery in comparison with meniscectomy. The overall rate of adverse events was 1.24%. After we adjusted for demographic characteristics and the procedure, a 15-minute increase in operative duration was associated with an increased risk of transfusion (relative risk [RR], 1.5; 95% CI, 1.3-1.8; P < .001), death (RR, 1.6; 95% CI, 1.2-2.1; P = .005), dehiscence (RR, 1.6; 95% CI, 1.2-2.2; P = .002), surgical-site infection (RR, 1.3; 95% CI, 1.2-1.3; P = .001), sepsis (RR, 1.3; 95% CI, 1.2-1.4; P < .001), readmission (RR, 1.1; 95% CI, 1.1-1.2; P < .001), and extended length of stay (RR, 1.4; 95% CI, 1.3-1.4; P < .001). CONCLUSIONS: Marginal increases in operative time are associated with an increased risk of adverse events such as surgical-site infection, sepsis, extended length of stay, and readmission. Efforts should be made to maximize surgical efficiency. LEVEL OF EVIDENCE: Level IV, retrospective database study.
Authors: P Niemeyer; M Hanus; J Belickas; T László; R Gudas; M Fiodorovas; A Cebatorius; M Pastucha; P Hoza; K Magos; K Izadpanah; L Paša; G Vásárhelyi; K Sisák; M Mohyla; C Farkas; O Kessler; S Kybal; R Spiro; A Köhler; A Kirner; S Trattnig; C Gaissmaier Journal: Cartilage Date: 2022 Jan-Mar Impact factor: 3.117
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