3D-Printable Knee Arthrometer: Development and Validation.

Introduction The anterior cruciate ligament is the most commonly injured ligament in the knee. Its injury is often evaluated with orthopedic tests during physical examination, but this turns out to be a subjective assessment. A knee arthrometer is a mechanical device developed in the 1970s to improve the diagnostic accuracy of anterior cruciate ligament injury.

Evaluation of the surgical treatment of humeral shaft fractures and comparison between surgical fixation methods.

Objective: The objective of this study is to analyze the surgical results of humeral shaft fracture treatment and describe its epidemiology.

Methods: Retrospective study that identified all patients treated with surgical fixation of humeral shaft fractures between December of 2014 and June of 2016 in a trauma reference center. All medical records were reviewed in search of epidemiological data referent to the trauma and post-operative results, including radiographic healing of the fracture and related complications.