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A COMPARISON OF PULLOUT STRENGTH OF PEDICULAR SCREWS BETWEEN DIFFERENT METHODS OF SCREW INSERTION IN POSTERIOR FIXATION OF THORACIC SPINE
Pedicle screw spine thoracic intratransverse process pullout strength
2009/12/18
Pedicle screws provide rigid fixation for instabilities in the lumbar and lumbosacral spine. Anatomical consideration and potential risk of neurologic complications are the reasons to hesitate using p...
FEM analysis of compression screws used for small bone treatment
Numerical techniques Biomechanical analysis Biomaterials
2009/12/14
Purpose: The paper presents results of numerical analysis in metatarsal bone „I” - compression screws system. The aim of the work was determined stresses, strain and displacement in the inserted...
Stability of Mini-Screws Invading the Dental Roots and Their Impact on the Paradental Tissues in Beagles
Mini-screw Root damage Root healing
2010/3/5
Objective: To examine the stability of mini-screws that invade a dental root by measuring the retention period/failure rate, and to illustrate their effects on paradental tissues.
Materials and Met...
The role of Esmarch bandage and percutaneous cannulated cancellous screws in tibial condylar fracture
Tibial condyle fractures Schatzker′s classification Esmarch bandage Percutaneous cannulated cancellous screws Buttress screw Holh′s Criteria
2008/11/27
Background : Proximal tibial fractures involving the condyles are often a matter of debate with regards to surgical management. The purpose of this study was to evaluate the efficacy of using closed r...
Mechanical Characteristics of Various Orthodontic Mini-screws in Relation to Artificial Cortical Bone Thickness
Orthodontic mini-screw Insertion torque Removal torque
2008/11/10
Objective: To evaluate the effect of cortical bone thickness on the maximum insertion and removal torque of different types of self-drilling mini-screws and to determine if torque depends on the screw...
Investigation of load transfer and optimum pin configuration in the internal fixation, by Muller screws, of fractured femoral necks
load transfer and optimum pin configuration Muller screws fractured femoral necks
2010/1/7
Investigation of load transfer and optimum pin configuration in the internal fixation, by Muller screws, of fractured femoral necks.