INTRODUCTION Intramedullary nail distal locking screws make it possible to control length and rotation but include an increased risk of radiation exposure. A distal targeting device was recently developed for long Gamma(®) nails (Stryker(®)). The aim of this practical observational study was to evaluate the reliability of this system. Our hypothesis was that the targeting device would be system...

BACKGROUND Distal femoral fractures are usually complex and difficult to treat. The surgeon must demonstrate sound judgment in interpreting the fracture pattern and must possess a basic understanding of the principles of operative fracture management as well as knowledge of the mechanics of the implants. MATERIAL AND METHODS 1 70 patients with distal femoral fractures were operated by 10 diff...

BACKGROUND Nowadays, mini screws are used in orthodontic tooth movement to obtain maximum or absolute anchorage. They have gained popularity among orthodontists for en masse retraction of anterior teeth after first premolar extraction in maximum anchorage cases. The purpose of this study was to determine the type of anterior tooth movement during the time when force was applied from different m...

We describe a case of symptomatic focal femoral osteolysis around a screw hole distal to the hydroxyapatite-coated portion of a cannulated femoral component in a revision hip replacement. No locking screw had been inserted into this, the most proximal of the three distal holes for locking screws. The presence of polyethylene wear debris in the tissue excised from the lesion suggested that it ha...

The electronic wedge brake system (EWB) used in the automotive industry is a new structure designed for brake-by-wire systems. This paper proposes novel EWB which mainly composed of screw-driven wedged inner pad, fixed outer caliper-flexible rotor and hybrid stepper motor. proposed does not have planetary gear set or ball screw mechanism, it simplified existing to take advantage self-interlocki...

Avulsion injury of the flexor digitorum profundus (FDP) with concomitant fracture of the distal phalanx dorsal base is uncommon. Simultaneous avulsion fractures of the insertion of this tendon associated with rupture of the tendon from the bony fragment and combination with dorsal base fracture is very rare and also complicated. A 36- year- old man fell and injured his right little finger. FDP ...

Between 1993 and 2000 we treated 14 patients with nonunion of fractures of the distal humerus; 11 had already had previous fixation which had failed. The mean time to surgery was 21 months after injury. All the fractures were very low which made it difficult to obtain a firm hold of the small distal fragment. The problem of fixation was addressed by inserting a Coventry infant hip screw into th...