Background: There has been an increasing use of national databases to conduct
orthopaedic research. Questions regarding the validity and consistency of these studies …

Background National databases are increasingly being used for research in spine surgery;
however, one limitation of such databases that has received sparse mention is the frequency …

The use of nationwide databases to conduct orthopaedic research has expanded markedly
in recent years. Nationwide databases offer large sample sizes, sampling of patients who …

Study Design. Quality improvement with before and after evaluation of the intervention.
Objective. To improve lumbar spine postoperative care and quality outcomes through a …

Objective To identify factors that account for variation in complication rates across hospitals
and surgeons performing lumbar spinal fusion surgery. Data Sources Discharge registry …

While medical and technological advances continue to shape and advance health care,
there has been growing emphasis on translating these advances into improvement in …

Most clinicians have come to imagine that scientific evidence has levels, and at the top of the
pyramid are randomized clinical trials (RCTs) and meta-analyses [12]. But we all have read …

Background. Several quality assessment systems use administrative data to identify
postoperative complications, with uncertain validity. Objectives. To determine how …

Study Design. Retrospective cohort study of the American College of Surgeons National
Surgical Quality Improvement Program database from 2005 to 2010 that included 1861 …

Background National databases are being used with increasing frequency to conduct
orthopaedic research. However, there are important differences in these databases, which …