Publications by authors named "Andrew S Longenecker"

Introduction: Increasingly, unicompartmental knee arthroplasty (UKA) is being performed on an outpatient basis, with the growing utilization of ambulatory surgery centers (ASCs). The purpose of this study was to compare the costs of UKAs performed in an ASC to UKAs done in a hospital, either on an outpatient or inpatient basis.

Methods: This study involved three matched groups, each with 50 consecutive patients, undergoing UKA either on an outpatient basis in an ASC or a community hospital, or who were admitted overnight to the same community hospital.

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Background: Multiple studies have demonstrated that ketamine, a glutamate receptor blocker, may decrease postoperative pain in abdominal and orthopedic surgeries. However, its role with spinal anesthesia and total knee arthroplasty (TKA) remains unknown. The purpose of this study is to determine the efficacy of subanesthetic dosing of ketamine during TKA on postoperative pain and narcotic consumption.

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Background: Obtaining routine radiographs in the postanesthesia care unit (PACU) after primary uncomplicated partial knee arthroplasty (PKA) is a common practice with unclear utility. The objective of this study is to determine the rate at which immediate postoperative radiographs identify an actionable problem after primary uncomplicated PKA and to determine the potential cost savings associated with foregoing the routine acquisition of these radiographs.

Methods: This was a retrospective review that assessed a consecutive series of 1366 primary uncomplicated PKAs (including 873 unicondylar knee arthroplasties, 313 patellofemoral arthroplasties, and 180 bicompartmental knee arthroplasties) performed between January 2008 and March 2016.

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Early embryonic exposure to maternal glucocorticoids can broadly impact physiology and behaviour across phylogenetically diverse taxa. The transfer of maternal glucocorticoids to offspring may be an inevitable cost associated with poor environmental conditions, or serve as a maternal effect that alters offspring phenotype in preparation for a stressful environment. Regardless, maternal glucocorticoids are likely to have both costs and benefits that are paid and collected over different developmental time periods.

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Synopsis of recent research by authors named "Andrew S Longenecker"

  • - Andrew S Longenecker's research primarily focuses on orthopedic surgery, particularly knee arthroplasties, examining various aspects such as cost-effectiveness, postoperative pain management, and the necessity of imaging in specific surgical contexts.
  • - His recent study on unicompartmental knee arthroplasty (UKA) revealed that performing UKAs in outpatient ambulatory surgery centers is more cost-effective compared to inpatient settings, highlighting the push towards outpatient surgical options.
  • - Longenecker's work also addresses the efficacy of intraoperative ketamine in total knee arthroplasty, finding that it does not significantly reduce pain or narcotic usage, as well as questioning the necessity of routine radiographic imaging after partial knee arthroplasties, suggesting potential cost savings by omitting this practice.