Radiographic evaluation of modern orthopedic fixation devices.

Laboratory evaluation of hip fracture fixation devices.

Radiographic Evaluation of Periapical Radiolucencies

Background and purpose: Periapical inflammatory lesions are localized periapical bone reactions that result from pulp necrosis and inflammation or periodontal diseases. Inappropriate treatments are often considered as one of the main factors associated with apical periodontitis. This study was done to evaluate periapical radiolucencies in panoramic radiographs. Materials and methods: In this c...

Biomechanical Evaluation of Anterior Cervical Spine Fixation Devices

The anterior cervical plate fixation systems have been widely used in treatment of complex spinal disorders such as traumatic lesion, disc hernination, tumor, spondylosis, arthritides, and others. Combined with bone graft or other fusion techniques the satisfactory outcomes were higher than 88% (Clements 1990, Naito 1993,Bose 1998, Schneeberger 1999). Among the screw plate fixation systems, Cas...

Synthetic biodegradable polymers as orthopedic devices.

Polymer scientists, working closely with those in the device and medical fields, have made tremendous advances over the past 30 years in the use of synthetic materials in the body. In this article we will focus on properties of biodegradable polymers which make them ideally suited for orthopedic applications where a permanent implant is not desired. The materials with the greatest history of us...

Pre-clinical Evaluation of the Biomechanical Behavior of Implantable Devices for Orthopedic and Spinal Surgery

The assessment of the suitability of the biomechanical performances of a medical device intended to replace either a function or tissue, is a primary issue in the pre-clinical evaluation of a new device. Such evaluation is usually performed by means of either experimental facilities or computational simulation or, better, by the interaction of both the methodologies. Difficulties arise when try...