The earliest efforts to predict the risk of an impending fracture in the presence of tumor dates to the 1960s [1–3, 10, 11]. Although some of the earlier studies made positive contributions, they lacked supportive statistical evidence. Later, several larger and well-documented studies were designed to identify the features of an impending pathologic fracture [4, 7, 8]. Although the statistical ...

Some reported bearing fractures are due to entrapment of the bearing between the femoral component and posterior edge of the tibial base plate in unstable meniscal –bearing design TKA. However, so far no cases of bearing fracture has been reported for the rotating platform or anteroposterior gliding designs of mobile bearing TKA. The authors describe two cases of polyethylene stress fracture af...

Toughness is a complex material characteristic that is viewed from multiple aspects and is influenced by numerous factors. It is very important to have ability to assess toughness, i.e. to determine ductile or brittle material behaviour at any specific time. Beside total impact energy obtained at Charpy instrumented pendulum, the use of additional parameters such as lateral extension measuremen...

Cases of cerebrospinal fluid (CSF) rhinorrhea due to clival fracture are rare. We present a case of bacterial meningitis with CSF rhinorrhea after a clival fracture. Heavily T2-weighted images showed a bone flap in the thinned clivus and fluid collection in the sphenoid sinus. CSF rhinorrhea developed at 1 month after mild trauma. The fracture may have been caused by the trauma and/or by the pr...

In this article, failure and fracture mechanisms in an aluminum alloy (which has been used in diesel internal combustion engines), with and without ceramic thermal barrier coatings, have been investigated under isothermal and non-isothermal fatigue loadings. In this research, the base material is an aluminum-silicon-magnesium alloy and the thermal barrier coating includes a metallic bond coat l...

A 72-year-old male patient underwent mobile-bearing posterior-stabilized total knee arthroplasty for osteoarthritis. He experienced a nontraumatic polyethylene tibial insert cone fracture 27 months after surgery. Scanning electron microscopy of the fracture surface of the tibial insert cone suggested progress of ductile breaking from the posterior toward the anterior of the cone due to repeated...

London’s Air Ambulance, London, UK Full list of author information is available at the end of the article Figure 1 A) Displaced fracture causeing sagittal sinus thrombosis; B) Periosteal haematoma compressing right transverse sinus; C) Right Sigmoid Sinus thrombus forming under undisplaced right occipital / base of skull fracture. Hendrickson et al. Scandinavian Journal of Trauma, Resuscitation...

Fractures may be unilateral or bilateral. Classically, fractures of the temporal bone are classified into longitudinal or transverse according to its long axis which passes from its base posterolaterally to the petrous apex anteromedially. The direction of a single trauma force may cause a longitudinal fracture on one side and a transverse on the other. Any combination of all fracture types is ...

the purpose of this article was to review the biocompatibility, physical, and mechanical properties of the polyamide denture base materials. an electronic search of scientific papers from 1990-2014 was carried out using pubmed, scopus and wiley inter science engines using the search terms “nylon denture base” and “polyamide denture base”. searching the key words yielded a total of 82 articles. ...

Older adults and vitamin D hip fracture connections-what is the 2022 research base indicating?