Needleless graft preparation for anterior cruciate ligament reconstruction with 4-strand semitendinosus autograft: a biomechanical in vitro study using a porcine model.

Background: Ruptures of the anterior cruciate ligament (ACL) are common injuries. Reconstruction using autologous grafts is recommended to prevent further damage and functional impairment. Grafts are usually prepared with stabilizing sutures.

Risk of bacterial colonization by torniquet during arthroscopy of the knee joint.

Purpose: The following study investigated the risk of transmission or spread of potentially pathogenic bacteria via surgical gloves and/or with an elastic bandage to achieve a bloodless surgical site during arthroscopy.

Methods: This was a single-center, prospective study performed at a level-1 trauma center. The included patients were between 18 and 65 years of age and underwent arthroscopy of the knee joint.

Engineering, feasibility, and safety of force-controlled oropharyngeal swabs with a 3D-printed feedback system FCCSS (force controlled COVID-19 swab study) - a preliminary study.

Errors in laboratory diagnostics of viral infections primarily occur during the preanalytical phase, which is especially observed in sample collection. Hitherto, no efforts have been made to optimize oropharyngeal smears. An accurate method to analyze the necessary conditions for a valid oropharyngeal smear test is required, especially to avoid false negative results, which can lead to promotion of the spread of viruses such as SARS-CoV-2.

Minimal impacts of invasive on via pollinator competition in Puerto Rico.

Introduction: and co-occur on shorelines of the Caribbean. is introduced in this habitat and directly competes with native dune vegetation, including , a species listed as locally endangered and threatened in Caribbean locations. This study addresses whether the invasive also impacts the native indirectly by competing for pollinators and represents the first comparative study of insect visitation between these species.