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MINI: We assessed 90-day readmission and evaluated risk factors associated with readmission after lumbar spinal fusion surgery in New York State. The overall 90-day readmission rate was 24.8%. Age, sex, race, insurance, procedure, number of operated spinal levels, health service area, and comorbidities are major risk factors for 90-day readmission.

Study Design: Retrospective cohort study.

Objective: The aim of this study was to assess 90-day readmission and evaluate risk factors associated with readmission after lumbar fusion in New York State.

Summary of Background Data: Readmission is becoming an important metric for quality and efficiency of health care. Readmission and its predictors following spine surgery are overall poorly understood and limited evidence is available specifically in lumbar fusion.

Methods: The New York Statewide Planning and Research Cooperative System (SPARCS) was utilized to capture patients undergoing lumbar fusion from 2005 to 2014. Temporal trend of 90-day readmission was assessed using Cochran-Armitage test. Logistic regression was used to examine predictors associated with 90-day readmission.

Results: There were 86,869 patients included in this cohort study. The overall 90-day readmission rate was 24.8%. On a multivariable analysis model, age (odds ratio [OR] comparing ≥75 versus <35 years: 1.24, 95% confidence interval [CI]: 1.13-1.35), sex (OR female to male: 1.19, 95% CI: 1.15-1.23), race (OR African-American to white: 1.60, 95% CI: 1.52-1.69), insurance (OR Medicaid to Medicare: 1.42, 95% CI: 1.33-1.53), procedure (OR comparing thoracolumbar fusion, combined [International Classification of Disease, Ninth Revision, ICD-9: 81.04] to posterior lumbar interbody fusion/transforaminal lumbar spinal fusion [ICD-9: 81.08]: 2.10, 95% CI: 1.49-2.97), number of operated spinal levels (OR comparing four to eight vertebrae to two to three vertebrae: 2.39, 95% CI: 2.07-2.77), health service area ([HSA]; OR comparing Finger Lakes to New York-Pennsylvania border: 0.67, 95% CI: 0.61-0.73), and comorbidity, i.e., coronary artery disease (OR: 1.26, 95% CI: 1.19-1.33) were significantly associated with 90-day readmission. Directions of the odds ratios for these factors were consistent after stratification by procedure type.

Conclusion: Age, sex, race, insurance, procedure, number of operated spinal levels, HSA, and comorbidities are major risk factors for 90-day readmission. Our study allows risk calculation to determine high-risk patients before undergoing spinal fusion surgery to prevent early readmission, improve quality of care, and reduce health care expenditures.

Level of Evidence: 3.

Titel:	90-day Readmission After Lumbar Spinal Fusion Surgery in New York State Between 2005 and 2014: A 10-year Analysis of a Statewide Cohort.
Autor/in / Beteiligte Person:	Baaj, AA ; Lang, G ; Hsu, WC ; Avila, MJ ; Mao, J ; Sedrakyan, A
Link:	Full Text Finder (Volltext)
Zeitschrift:	Spine, Jg. 42 (2017-11-15), Heft 22, S. 1706-1716
Veröffentlichung:	Hagerstown, MD : Lippincott Williams & Wilkins ; <i>Original Publication</i>: Hagerstown, Md., Medical Dept., Harper & Row., 2017
Medientyp:	academicJournal
ISSN:	1528-1159 (electronic)
DOI:	10.1097/BRS.0000000000002208
Schlagwort:	Adult Aged Cohort Studies Comorbidity Delivery of Health Care trends Female Humans Male Medicaid trends Medicare trends Middle Aged New York epidemiology Retrospective Studies Risk Factors Spinal Fusion adverse effects Time Factors United States epidemiology Data Analysis Lumbar Vertebrae surgery Patient Readmission trends Spinal Fusion trends
Sonstiges:	Nachgewiesen in: MEDLINE Sprachen: English Publication Type: Journal Article Language: English [Spine (Phila Pa 1976)] 2017 Nov 15; Vol. 42 (22), pp. 1706-1716. MeSH Terms: Data Analysis* ; Lumbar Vertebrae / surgery ; Patient Readmission / trends ; Spinal Fusion / *trends ; Adult ; Aged ; Cohort Studies ; Comorbidity ; Delivery of Health Care / trends ; Female ; Humans ; Male ; Medicaid / trends ; Medicare / trends ; Middle Aged ; New York / epidemiology ; Retrospective Studies ; Risk Factors ; Spinal Fusion / adverse effects ; Time Factors ; United States / epidemiology References: Weinstein JN, Lurie JD, Olson PR, et al. United States’ trends and regional variations in lumbar spine surgery: 1992–2003. Spine (Phila Pa 1976) 2006; 31:2707–2714. ; Rajaee SS, Bae HW, Kanim LE, et al. Spinal fusion in the United States: analysis of trends from 1998 to 2008. Spine (Phila Pa 1976) 2012; 37:67–76. ; Deyo RA, Ciol MA, Cherkin DC, et al. Lumbar spinal fusion. 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90-day Readmission After Lumbar Spinal Fusion Surgery in New York State Between 2005 and 2014: A 10-year Analysis of a Statewide Cohort.