Background Context As research tools, the American Society of Anesthesiologists (ASA)
physical status classification system, the modified Charlson Comorbidity Index (mCCI), and the …

Background Identifying patients at highest risk for a complex perioperative course following
total hip arthroplasty (THA) is more important than ever in order to educate patients, optimize …

Background There has been great interest in performing outpatient THA and TKA. Studies
have compared such procedures done as outpatients versus inpatients. However, stated “…

Objectives: The Charlson comorbidity index (CCI), Elixhauser comorbidity measure (ECM),
and modified frailty index (mFI) have been associated with mortality after hip fracture. The …

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 …

Background Context Venous thromboembolism (VTE) is a known complication after spine
surgery, but prophylaxis guidelines are ambiguous for patients undergoing elective spine …

Methods: Comorbidity indices and demographics from National Surgical Quality Improvement
Program THA patients were evaluated for discriminative ability in predicting adverse …

Background Context There has been growing interest in performing posterior lumbar fusions
(PLFs) in the outpatient setting to optimize patient satisfaction and reduce cost. Although …

Little is known about the impact of operative time, as an independent and interval variable,
on general health perioperative outcomes following anterior cervical diskectomy and fusion. …

Background Context The prevalence of dialysis-dependent patients in the United States is
growing. Prior studies evaluating the risk of perioperative adverse events for dialysis-…