関連する実験動画

Updated: Sep 10, 2025

An Anesthesia, Surgery, and Harvest Method for the Evaluation of Transpedicular Screws Using an In Vivo Porcine Lumbar Spine Model
09:07

An Anesthesia, Surgery, and Harvest Method for the Evaluation of Transpedicular Screws Using an In Vivo Porcine Lumbar Spine Model

Published on: May 31, 2017

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重度不安定な腰椎モデルにおける周期的負荷下における皮質構造と従来のペディクル構造のペアリングされた生体力学的比較

Steven T Swinford1, Ezra T Yoseph, Tyler R Johnston

  • 1Department of Orthopedic Surgery, Stanford University, Stanford, CA, USA.

Spine
|August 26, 2025
PubMed
まとめ

皮質骨の軌跡 (CBT) と従来の足元螺旋 (TPS) の固定は,不安定な腰椎のモデルで同様の疲労抵抗を示した. CBTの螺旋は動きの範囲を減らしたが,硬さや生存において有意な利点を提供しなかった.

キーワード:
バイオメカニクス骨のミネラル密度死体研究皮質骨の軌跡サイクル疲労屈折圧力の負荷腰椎単一レベル脊髄固定脊椎の不安定さ伝統的足輪スクリュー

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関連する概念動画

Normal Strain under Axial Loading01:20

Normal Strain under Axial Loading

Normal strain under axial loading is an important concept in the field of mechanics of materials. Axial loading implies the application of a force along the axis of a material, like a column or bar. This force can either compress or stretch the material. In the context of axial loading, normal strain is the deformation experienced by the material in the direction of the loading force. It's calculated as the change in length divided by the original length of the material. This unitless ratio...
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General Case of Eccentric Axial Loading01:12

General Case of Eccentric Axial Loading

Unsymmetrical bending occurs when the bending moment applied to a structural member does not align with its principal axis. This misalignment leads to complex stress distributions and deflection patterns that differ from symmetrical bending, which are essential for designing structures to withstand different loading conditions.
Consider a member subjected to equal and opposite forces that are applied along a line that does not coincide with the member's neutral axis. In unsymmetrical...
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Eccentric Axial Loading in a Plane of Symmetry01:16

Eccentric Axial Loading in a Plane of Symmetry

Eccentric axial loading occurs when an axial load is applied away from the centroidal axis of a structural member. This scenario is common in engineering, where structural elements may not be directly aligned due to various design or functional requirements.
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