Clinical biomechanics
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Clinical biomechanics · Jul 2007
Comparative StudyDynamic biomechanical analysis of different olecranon fracture fixation devices--tension band wiring versus two intramedullary nail systems: an in-vitro cadaveric study.
The aim of this study was to develop a test-setup with continuous angle alteration to imitate joint motion for the evaluation of 3 different olecranon fracture fixation devices. ⋯ Other studies evaluating biomechanical properties of olecranon-osteosynthesis with joint-involvement did not change the force-direction dynamically. We introduce a test-setup with continuous angle alteration to imitate joint motion. This is an important step for accurate biomechanical evaluation of the treatment of different fixation methods in olecranon fractures. The tested nailing systems showed a higher stability in comparison to tension band wiring.
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Clinical biomechanics · Jul 2007
Comparative StudyOperative treatment of greater tuberosity fractures of the humerus--a biomechanical analysis.
Fractures of the greater tuberosity of the humerus present with increasing frequency. However, no biomechanical data about the optimal fixation technique of greater tuberosity fractures is available. This biomechanical cadaver study compares the stability of three standard fixation techniques used for the treatment of greater tuberosity fractures of the proximal humerus. ⋯ Tension banding and two cancellous screws provided the strongest fixation for isolated fractures of the greater tuberosity.