Laryngeal masks are invasive devices for airway management placed in the supraglottic position. The Shiley™ laryngeal mask (Shiley™ LM) features an integrated inflation tube and airway shaft to facilitate product insertion and reduce the chance of tube occlusion when patients bite down. This study compared the Shiley LM to two other disposable laryngeal mask devices, the Ambu® AuraStraight™ and...

The purpose of this study is to report our experience with the treatment of femoral shaft fracture nonunion and to define poor prognostic indicators in the treatment of this complication. The records and available radiographs of 111 patients treated for nonunion of the femoral shaft in our institution were retrospectively reviewed. The mean duration of follow-up after establishment of nonunion ...

This paper proposes a nonlinear H∞ controller to control a single link rotary flexible joint robot which has dead zone problem. Dead zone properties are caused by dry friction and gearbox backlashes. The flexibility in setup robot is performed by means of a solenoid spring, which is connected between actuator shaft-out and joint shaft-input in a bilateral connection form. The effect of dead zon...

background:   although intramedullary nailing (imn) is an established and accepted operative treatment for femoral shaft fracture in patients younger than 60, there is a lack of data on the results of this treatment on those over 60. the purpose of this study was to determine if the outcome of imn for femoral shaft fracture in elderly patients is also acceptable. particular challenges in this g...

We report the outcome of 19 children aged 5.2 to 13.2 years with 20 fractures of the femoral shaft requiring surgery, who were randomly assigned to have external fixation (EF) or flexible intramedullary nailing (FIN) (10 fractures each). The duration of the operation averaged 56 minutes for the EF group with 1.4 minutes of fluoroscopy, compared with 74 minutes and 2.6 minutes, respectively, for...