We report a case of primary clear cell sarcoma occurring in the humerus. A 20 year old girl was referred to our hospital two years ago with painless swelling of the soft tissue surrounding the proximal right humerus. The conventional radiographic image showed an ill-defined, aggressive, osteolytic lesion associated with a partial cortical defect of the proximal right humerus. Magnetic resonance...

Background & Aims: supracondylar humerus fracture is one of the most common pediatric elbow fractures accounting for about 16% of the pediatric fractures. Loss of reduction is one of the complications after closed and percutaneous fixation. This research is aimed to investigate the factors involved in the loss of reduction. Method: In this descriptive study, the children with supracondylar hum...

Two arrow-shaped micro-mixers, obtained from the classical T-shaped geometry by tilting downward inlet channels, are considered herein. The two configurations, having different angle values, have been chosen since they show significantly flow topologies and mixing performances at low Reynolds numbers. In present paper, we use both experimental visualizations direct numerical simulations to shed...

ABSTRACT BACKGROUND Proximal humeral fractures are considered the last unsolved fractures in orthopaedics. The treatment is controversial and various operative modalities have been reported in the literature. The aim of the present study was to evaluate functional outcome and complication rate after open reduction and internal fixation of displaced proximal humerus fractures by proximal hume...

anatomically precontoured locking plates are intended to facilitate the fixation of articular fractures and particularly those associated with osteoporosis. fractures of the distal humerus are relatively uncommon injuries where operative intervention can be exceptionally challenging. the distal humeral trochlea provides a very narrow anatomical window through which to pass a fixed-angle locking...

conclusions the functional outcome 22 months post injury showed that although primary treatment method uses locked imn in humeral shaft fractures, unlocked imn can be used in appropriate cases. less injury risk to the axillary and radial nerve, short period of surgery, and less radiation can be considered as advantages of this technique. introduction although intramedullary nailing (imn) is use...

background: supracondylar fracture of the humerus is the second most common fracture in children. for most cases closed reduction and percutaneous crossed pinning is recommended. those patients who had previously undergone an unsuccessful closed reduction trial need open reduction and pin fixation, but the best surgical approach is questionable. most surgeons apply the technique of posterior or...