Neurospine

THE KOREAN SPINAL NEUROSURGERY SOCIETY (대한척추신경외과학회)
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Comparison of Inpatient and Outpatient Preoperative Factors and Postoperative Outcomes in 2-Level Cervical Disc Arthroplasty

  • Hill, Patrick (Department of Orthopedic Surgery, Hospital for Special Surgery) ;
  • Vaishnav, Avani (Department of Orthopedic Surgery, Hospital for Special Surgery) ;
  • Kushwaha, Blake (Weill Cornell Medical School) ;
  • McAnany, Steven (Department of Orthopedic Surgery, Hospital for Special Surgery) ;
  • Albert, Todd (Department of Orthopedic Surgery, Hospital for Special Surgery) ;
  • Gang, Catherine Himo (Department of Orthopedic Surgery, Hospital for Special Surgery) ;
  • Qureshi, Sheeraz (Department of Orthopedic Surgery, Hospital for Special Surgery)
  • Received : 2018.04.04
  • Accepted : 2018.06.15
  • Published : 2018.12.31
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Abstract

Objective: The purpose of this study was to evaluate factors associated with inpatient admission following 2-level cervical disc arthroplasty (CDA). A secondary aim was to compare outcomes between those treated on an inpatient versus outpatient basis. Methods: Using data from the American College of Surgeons National Surgical Quality Improvement Program database, multivariate logistic regression analysis was used to assess the independent effect of each variable on inpatient or outpatient selection for surgery. Statistical significance was defined by p-values <0.05. The factors considered were age, sex, body mass index (BMI), smoking status, American Society of Anesthesiologists physical status classification, and comorbidities including hypertension, diabetes, history of dyspnea or chronic obstructive pulmonary disease, previous cardiac intervention or surgery, steroid usage, and history of bleeding. In addition, whether the operation was performed by an orthopedic or neurosurgical specialist was analyzed. Results: The number of 2-level CDA procedures increased from 6 cases reported in 2014 to 142 in 2016, although a statistically significant increase in the number of outpatient cases performed was not seen (p=0.2). The factors found to be significantly associated with inpatient status following surgery were BMI (p=0.019) and diabetes mellitus requiring insulin (p=0.043). There were no significant differences in complication and readmission rates between the inpatient and outpatient groups. Conclusion: Patients undergoing inpatient 2-level CDA had significantly higher rates of obesity and diabetes requiring insulin than did patients undergoing the same procedure in the outpatient setting. With no difference in complication or readmission rates, 2-level CDA may be considered safe in the outpatient setting in appropriately selected patients.

Keywords

References

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