Expert review of medical devices
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Expert Rev Med Devices · Jan 2015
ReviewThe Silk flow-diverter stent for endovascular treatment of intracranial aneurysms.
Flow diverter (FD) stents represent a new endovascular technique developed for the treatment of complex intracranial aneurysms (wide neck, fusiform, large, and giant aneurysms) that are challenging for classic endovascular techniques such as coiling, balloon-assisted coiling and stent-assisted coiling. Low porosity, high metal coverage, and high pore density are the main properties of FD stents. These properties induce hemodynamic changes redirecting the blood flow away from the aneurysm and into the parent artery leading to gradual thrombosis of the aneurysm. ⋯ This is considered as a paradigm shift compared to prior endovascular methods, which predominantly aimed at providing treatment inside the aneurysmal sac. This paper describes in detail the first released FD stent, the Silk flow-diverter stent (Balt Extrusion, Montmorency, France), its mechanism of action and deployment technique. It reviews the pertinent literature regarding safety, efficacy and potential risks and complications associated with the use of this stent.
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Expert Rev Med Devices · Jan 2015
ReviewOutcomes of post-operative periprosthetic femur fracture around total hip arthroplasty: a review.
As the number of primary total hip arthroplasties increase over the next several decades so will the incidence of periprosthetic fractures around the femoral stem. Treatment can reliably be predicted using the Vancouver classification with internal fixation being indicated in fractures involving a stable implant and revision arthroplasty indicated in those with unstable prostheses. ⋯ The treatment of Vancouver C periprosthetic fractures continues to follow basic AO fixation principles with an emphasis on eliminating stress risers with adequate implant overlap and length. This review will focus on the risk factors and classification of these fractures, as well as highlight the treatment options for post-operative periprosthetic femoral fractures around a total hip arthroplasty.