Positioning of total knee arthroplasty with and without navigation support. A prospective, randomised study.

We conducted this prospective randomised and externally evaluated study to investigate whether the use of a navigation system during total knee arthroplasty leads to significantly better results than the hand-guided technique. A total of 240 patients was included in the study. All patients received a condylar knee prosthesis.

[Value of navigation and robot-guided surgery in total knee arthroplasty].

Up to now robotics play a minor role in orthopedic surgery because the financing and daily costs of these devices overburden the budgets of normal hospitals. The technical demands are time consuming and pose an additional cost factor. The trauma to the patients in the opinion of some authors is considerable.

Measurement of end-tidal carbon dioxide in spontaneously breathing patients in the pre-hospital setting. A prospective evaluation of 350 patients.

Objective: Monitoring of end-tidal carbon dioxide (EtCO(2)) is good clinical practice in the patient who is intubated and ventilated. This study investigated the EtCO(2) values in spontaneously breathing patients treated in a physician-staffed mobile intensive care unit (MICU). This article also discusses whether EtCO(2) monitoring may have an influence on therapeutic decisions by emergency physicians by providing additional information.