Effects of Cobalt and Chromium Levels Following Modular Hip Stem Total Hip Arthroplasty.

Due to the increased number of revision total hip arthroplasties (THAs) to correct pain secondary to fretting from modular hip stems, this study was conducted in an effort to correlate objective findings of serum cobalt (Co) levels, serum chromium (Cr) levels, and/or reactive tissue seen on metal artifact reduction sequence (MARS) magnetic resonance imaging (MRI) with a patient's need for revision THA. The study group comprised 66 patients, 18 of whom received MARS MRI. Serum Co levels, serum Cr levels, and standard numeric rating scale for pain were documented for all patients.

Cost Analysis and Surgical Site Infection Rates in Total Knee Arthroplasty Comparing Traditional vs. Single-Use Instrumentation.

Surgical site infections (SSIs) are a significant complications in total knee arthroplasty (TKA). The purpose of this study was to evaluate if traditional vs. single-use instrumentation had an effect on SSI's.

Concussions From 9 Youth Organized Sports: Results From NEISS Hospitals Over an 11-Year Time Frame, 2002-2012.

Background: Youth sports programs are extremely popular throughout the United States, with children starting formal sports participation as young as 4 years. This places children at greater risk for concussions and other trauma.

Purpose: To describe the epidemiology of concussions sustained during participation in 9 organized sports prior to participation in high school athletics.

Concussions From Youth Football: Results From NEISS Hospitals Over an 11-Year Time Frame, 2002-2012.

Background: Youth football programs across the United States represent an at-risk population of approximately 3.5 million athletes for sports-related concussions. The frequency of concussions in this population is not known.

Epidemiology of cheerleading injuries presenting to NEISS hospitals from 2002 to 2007.

Background: Cheerleading has developed into a complex sport utilizing aspects of dance, gymnastics/tumbling, single- and multiple-partner stunts, and tosses in complex displays. Stunting and tosses elevates one or multiple participants into the air supported by teammates putting all at significant injury risk.

Methods: We reviewed all cheerleading injuries captured by the US Consumer Product Safety Commission National Electronic Injury Surveillance System from 2002 to 2007 that presented to US Emergency Departments and used the new narrative feature added in 2002 to better differentiate injury context and severity.