Histological and biomechanical study of dura mater applied to the technique of dura splitting decompression in Chiari type I malformation.

Many techniques are described to treat Chiari type I malformation. One of them is a splitting of the dura, removing its outer layer only to reduce the risks of cerebrospinal fluid (CSF) leak. We try to show the effectiveness of this technique from histological and biomechanical observations of dura mater.

Mechanical properties of glenoid cancellous bone.

Background: Loosening of the glenoid component in total shoulder arthroplasty is the main late complication of this procedure; it may be assumed that it is highly dependent on the quality of the glenoid cancellous bone. Very little is known about the mechanical properties of this cancellous bone. The aim of this study was to determine these properties (Young's modulus and strength) as well as bone density in different parts of the glenoid cancellous bone to assess their variations.