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The purpose of this study is to compare the biocompatibility and the effect in osteoblasts of polymethyl methacrylate alone, and mixed with hydroxyapatite in different concentrations of 5, 10, 15 and 20%, without exceeding 20%, as it can alter mechanical properties of the composite.Experimental study comparing osteoblast response to polymethyl methacrylate alone and with hydroxyapatite in different...
Distal humerus fractures in the elderly frequently associated with poor bone quality and comminution, making it harder to achieve proper osteosynthesis. Our aim is to evaluate the radiological and functional results of open reduction and internal fixation of these fractures.Retrospective study of 26 patients treated by open reduction and internal fixation between the years 2005 and 2010. Mean follow-up...
Persistent or recurrent glenohumeral instability after a previous operative stabilization can be a complex problem.Our aim is to establish the incidence of recurrence and its revision surgery, and to analyze the functional results of the revision instability surgery, as well as to determine surgical protocols to perform it.A retrospective analysis was conducted on 16 patients with recurrent instability...
A retrospective study was carried out of a series of grade I and II degenerative spondylolistheses subjected to a single-level fusion, comparing circumferential to posterolateral fusion.Our series comprises 33 patients (22 females and 11 males) operated between 1999 and 2002. In all cases a single-level fusion was performed through a posterior approach: a posterolateral fusion was conducted in 15...
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