Alpha Angle DDH 

The alpha angle is a measurement used in the ultrasonographic assessment of developmental dysplasia of the hip (DDH). The angle is formed by the acetabular roof to the vertical cortex of the ilium and thus reflects the depth of the bony acetabular roof. This is a similar measurement to the acetabular angle. The normal value […]


The radiographs show localized diffuse cortical thickening that is characteristic of melorheostosis.  The condition may be monostotic or it may involve many bones in one extremity (monomelic) in the distribution of a sclerotome.  Bone scans will show increased uptake at the site or sites of skeletal involvement.  Long tubular bones are most commonly involved.  Melorheostosis […]

Intercondylar Eminence Fractures 

Intercondylar eminence fractures in skeletally immature patients usually result from injuries that would cause ACL tears in skeletally mature patients.  Meyers and McKeever reported that a large number of bicycle falls produce this type of injury in children.  However, intercondylar eminence fractures can be caused by a spectrum of sporting activities and by motor vehicle […]

Bearing Surfaces 

#update #tusharmehta #THR  #BearingSurfaces Ceramic bearing surfaces, like other bearing surfaces, have their advantages and disadvantages. The biggest advantage of ceramic-on-ceramic bearing surfaces is that they have the best wear properties of all bearing surfaces due to their low coefficient of friction.  Additional advantages include inert wear particles and high biocompatibility.  Disadvantages of ceramic bearing surfaces […]