関連する実験動画

Updated: Sep 10, 2025

Prone Lateral Minimally Invasive Retropleural Corpectomy Using a Rotatable Radiolucent Jackson Table
04:57

Prone Lateral Minimally Invasive Retropleural Corpectomy Using a Rotatable Radiolucent Jackson Table

Published on: July 3, 2025

449

トランク回転の角度と予測不可能なケースの特徴を使用して,X線なしでコブ角の推定

Takuma Fukuzawa1, Hiroki Oba2, Shota Ikegami1

  • 1Shinshu University School of Medicine, Matsumoto, Nagano, Japan.

European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society
|August 23, 2025
PubMed
まとめ

トランク・ローテーション・アングル (ATR) は,青少年のイディオパシー・スコリオシス (AIS) のコブ・アングルと強く相関する. 特定のATRの値は25°と45°以上の曲線を予測し,X線写真なしで治療決定を助けます.

キーワード:
青春期のイディオパシー・スコリオシストランク回転の角度コブ角スコリオメーターX線写真

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Design Example: Traverse Angle Computations01:25

Design Example: Traverse Angle Computations

Traverse angle computations are a critical component of surveying, used to compute the internal angles within a closed traverse. A traverse consists of a series of connected lines forming a closed loop, often used for land boundary delineation or mapping. Calculating the internal angles ensures accuracy in the traverse geometry and is essential for checking survey data integrity.The process begins with known azimuths and bearings of the traverse sides. Internal angles at each vertex are...
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Adjusting a Traverse01:12

Adjusting a Traverse

In the site survey of a four-sided traverse, internal angles are essential to ensure geometric accuracy. The survey revealed that the sum of the measured internal angles was 359 degrees and 48 minutes, which is 12 minutes less than the expected 360 degrees. This discrepancy signals an error likely arising from measurement inaccuracies during the fieldwork.To rectify this error, the adjustment process involved distributing the 12-minute shortfall equally across the four internal angles. By...
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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.
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Angle of Twist: Problem Solving01:13

Angle of Twist: Problem Solving

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Angle of Twist - Elastic Range01:13

Angle of Twist - Elastic Range

Consider a cylindrical shaft with a length denoted by L and a consistent cross-sectional radius referred to as r. This shaft undergoes a torque at the free end. The highest shearing strain within the shaft is directly proportional to the twist angle and the radial distance from the shaft axis. When the shaft behaves elastically, this shearing strain can be articulated using variables such as the applied torque, radial distance, the polar moment of inertia, and the modulus of rigidity. By...
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Unsymmetric Bending - Angle of Neutral Axis01:15

Unsymmetric Bending - Angle of Neutral Axis

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