The National Neurosurgery Quality and Outcomes Database (N2QOD): A collaborative north American outcomes registry to advance value-based spine care

Anthony L. Asher, Ted Speroff, Robert S. Dittus, Scott L. Parker, Jason M. Davies, Nathan Selden, Hui Nian, Steven Glassman, Praveen Mummaneni, Christopher Shaffrey, Clarence Watridge, Joseph S. Cheng, Mathew J. McGirt

Research output: Contribution to journalArticlepeer-review

124 Scopus citations


Study Design. National Prospective Observational Registry Objective. Describe our preliminary experience with the National Neurosurgery Quality and Outcomes Database (N2QOD), a national collaborative registry of quality and outcomes reporting after low back surgery. Summary of Background Data. All major health care stakeholders are now requiring objective data regarding the value of medical services. Surgical therapies for spinal disorders have faced particular scrutiny in recent value-based discussions, in large part due to the dramatic growth in the cost and application of these procedures. Reliable data are fundamental to understanding the value of delivered health care. Clinical registries are increasingly used to provide such data. Methods. The N2QOD is a prospective observational registry designed to establish risk-adjusted expected morbidity and 1-year outcomes for the most common lumbar surgical procedures performed by spine surgeons; provide practice groups and hospitals immediate infrastructure for analyzing their 30-day morbidity and mortality and 3- and 12-month quality data in real-time; generate surgeon-, practice-, and specialty-specific quality and efficacy data; and generate nationwide quality and effectiveness data on specific surgical treatments. Results. In its first 2 years of operation, the N2QOD has proven to be a robust data collection platform that has helped demonstrate the objective quality of surgical interventions for medically refractory disorders of the lumbar spine. Lumbar spine surgery was found to be safe and effective at the group mean level in routine practice. Subgroups of patients did not report improvement using validated outcome measures. Substantial variation in treatment response was observed among individual patients. Conclusion. The N2QOD is now positioned to determine the combined contribution of patient variables to specific clinical and patient-reported outcomes. These analyses will ultimately facilitate shared decision making and encourage efficient allocation of health care resources, thus significantly advancing the value paradigm in spine care.

Original languageEnglish (US)
Pages (from-to)S106-S116
Issue number22
StatePublished - Oct 15 2014


  • NQOD
  • Registry
  • Spine
  • Value

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Clinical Neurology


Dive into the research topics of 'The National Neurosurgery Quality and Outcomes Database (N2QOD): A collaborative north American outcomes registry to advance value-based spine care'. Together they form a unique fingerprint.

Cite this