Biomechanical Comparison of Perpendicular Versus Oblique In Situ Screw Fixation of Slipped Capital Femoral Epiphysis

@article{Merz2015BiomechanicalCO,
  title={Biomechanical Comparison of Perpendicular Versus Oblique In Situ Screw Fixation of Slipped Capital Femoral Epiphysis},
  author={Michael K. Merz and Farid Amirouche and Giovanni F. Solitro and Jeffrey A. Silverstein and Tyler Surma and Prasad V Gourineni},
  journal={Journal of Pediatric Orthopaedics},
  year={2015},
  volume={35},
  pages={816–820}
}
Background: Percutaneous in situ single screw fixation is the preferred treatment for stable and unstable slipped capital femoral epiphysis (SCFE). The recommended screw placement is in the center of the epiphysis and perpendicular to the physis, which necessitates an anterior starting point for most SCFEs. A recent clinical study has shown good clinical results with a laterally based screw for SCFE, which is oblique to the physis. We sought to biomechanically compare these 2 techniques for… Expand
3 Citations
The Universal Entry Point with oblique screw is superior to fixation perpendicular to the physis in moderate slipped capital femoral epiphysis
TLDR
This study model the biomechanical effect of two screw positions used for SCFE fixation and hypothesize that single screw fixation into the centre of the femoral head from the anterior intertrochanteric line (the Universal Entry Point or UEP) provides a more stable construct than single screws fixation perpendicular to the physis. Expand
The point of epiphyseal penetration affects rotational stability of screw fixation in slipped capital femoral epiphysis: A biomechanical study
  • W. Morris, A. Riccio, +5 authors E. Novais
  • Medicine
  • Journal of orthopaedic research : official publication of the Orthopaedic Research Society
  • 2020
TLDR
In a biomechanical model of single screw fixation of stable SCFE, a screw passing through the epiphyseal tubercle (the axis of rotation) would confer less rotational stability than a centrally placed screw and screw position through the tubercle was associated with equal or greater rotational stiffness and maximum torque during displacement as a centrallyplaced screw. Expand
Slipped Capital Femoral Epiphysis : Pathogenetic and Clinical aspects
Melinda Witbreuk Kroezeboom A Kroezeboom is a tree, usually an oak, which indicates a boundary or junction. In the east of the Netherlands stones or trees were often used as boundary determination ofExpand

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Oblique placement of the screw for in situ fixation in stable slipped capital femoral epiphysis did not cause any deleterious effects and offered several potential advantages. Expand
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TLDR
Although there were no differences between screw types in an in vitro model, bone healing around the fully threaded screw may eventually provide greater stability, and implant removal may be easier with such a system. Expand
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TLDR
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TLDR
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TLDR
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TLDR
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TLDR
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TLDR
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