2014
DOI: 10.1097/bot.0b013e31829d19a4
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Complex Distal Humerus Fractures—Comparison of Polyaxial Locking and Nonlocking Screw Configurations—A Preliminary Biomechanical Study

Abstract: System stiffness increases with larger screw diameters and becomes significant with additional gap bridging screws in artificial bones. The use of polyaxial locking screws in anatomical adapted plates becomes more important in poor bone quality.

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Cited by 24 publications
(17 citation statements)
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References 28 publications
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“…Considering the fact that the elbow will only be loaded carefully during the first weeks of post-operative fracture care, the median fatigue limit appears to be sufficient for all plate configurations to endure the time for normal fracture healing. The values for stiffness and fatigue are in good agreement with results from previous studies on similar implant configurations [5,14]. The design of recent locked plating systems provides the opportunity for poly-axial screw placement.…”
Section: Discussionsupporting
confidence: 80%
See 1 more Smart Citation
“…Considering the fact that the elbow will only be loaded carefully during the first weeks of post-operative fracture care, the median fatigue limit appears to be sufficient for all plate configurations to endure the time for normal fracture healing. The values for stiffness and fatigue are in good agreement with results from previous studies on similar implant configurations [5,14]. The design of recent locked plating systems provides the opportunity for poly-axial screw placement.…”
Section: Discussionsupporting
confidence: 80%
“…The fixation methods evolved into the present third generation of locking plates which include anatomical plate design and poly-axial locking screws. These features aim at rigid stability to allow early mobilization as well as adequate stiffness to stimulate fracture healing [5]. The preferred plating techniques for comminuted distal humeral fractures include the Mayo clinic configuration (180°between plates) with parallel plate fixation and medial and lateral plate positioning as well as the AO/ASIF configuration (90°angle between plates) with perpendicular plate fixation and medial and postero-lateral plate positioning [3,[6][7][8][9].…”
Section: Introductionmentioning
confidence: 99%
“…Dual plate fixation might be indicated in cases of osteoporosis and comminution. We used locking constructs since they have been shown to provide better stability for distal humerus fractures compared to nonlocking constructs 7). Schwartz et al8) compared 180° versus 90° dual plate constructs for segmental intra-articular distal humerus fractures.…”
Section: Discussionmentioning
confidence: 99%
“…Each specimen was loaded with cylinder in an adjustable metal clamp with 15°flexion [19] for the axial compressive loading (Fig. 2a) and 75°flexion [18][19][20] for the anterior-posterior bending load application in sagittal plane (Fig. 2b), representing the extension and flexion loading of arm.…”
Section: Biomechanical Testing and Analysismentioning
confidence: 99%