How to evaluate three dimensional angle error from plain radiographs

Chen Kun Liaw; Tai Yin Wu; Sheng Mou Hou; Rong Sen Yang; Chiou Shann Fuh

doi:10.1016/j.arth.2013.05.023

How to evaluate three dimensional angle error from plain radiographs

Chen Kun Liaw, Tai Yin Wu, Sheng Mou Hou, Rong Sen Yang, Chiou Shann Fuh

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Evaluating three-dimensional angle error is necessary because we cannot get every patient's CT or MRI at all times. Creating a method that can calculate angle error from plain radiographs is therefore important. Using vector and trigonometric mathematics, we gradually deduct our formula which can calculate angle error from goal angles (the angles we plan to achieve before operation) to result angles (the angles we get after operation) by two perpendicular radiographs. We also encode it into Micorsoft Excel (Redmond Campus, Redmond, Washington, U.S.) so that it becomes more user-friendly. We hope this tool can be used when evaluating TKR, corrective osteotomy, fracture fixation, and so on.

Original language	English
Pages (from-to)	1788-1790
Number of pages	3
Journal	Journal of Arthroplasty
Volume	28
Issue number	10
DOIs	https://doi.org/10.1016/j.arth.2013.05.023
Publication status	Published - Dec 1 2013
Externally published	Yes

Keywords

Plain radiograph
Three dimensional angle
Two dimensional angle

ASJC Scopus subject areas

Orthopedics and Sports Medicine

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10.1016/j.arth.2013.05.023

Cite this

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title = "How to evaluate three dimensional angle error from plain radiographs",

abstract = "Evaluating three-dimensional angle error is necessary because we cannot get every patient's CT or MRI at all times. Creating a method that can calculate angle error from plain radiographs is therefore important. Using vector and trigonometric mathematics, we gradually deduct our formula which can calculate angle error from goal angles (the angles we plan to achieve before operation) to result angles (the angles we get after operation) by two perpendicular radiographs. We also encode it into Micorsoft Excel (Redmond Campus, Redmond, Washington, U.S.) so that it becomes more user-friendly. We hope this tool can be used when evaluating TKR, corrective osteotomy, fracture fixation, and so on.",

keywords = "Plain radiograph, Three dimensional angle, Two dimensional angle",

author = "Liaw, {Chen Kun} and Wu, {Tai Yin} and Hou, {Sheng Mou} and Yang, {Rong Sen} and Fuh, {Chiou Shann}",

note = "Funding Information: This study was supported by the grant of National Science Council , NSC98-2314-B-087-001-MY2 , Taiwan, ROC.",

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doi = "10.1016/j.arth.2013.05.023",

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T1 - How to evaluate three dimensional angle error from plain radiographs

AU - Liaw, Chen Kun

AU - Wu, Tai Yin

AU - Hou, Sheng Mou

AU - Yang, Rong Sen

AU - Fuh, Chiou Shann

N1 - Funding Information: This study was supported by the grant of National Science Council , NSC98-2314-B-087-001-MY2 , Taiwan, ROC.

PY - 2013/12/1

Y1 - 2013/12/1

N2 - Evaluating three-dimensional angle error is necessary because we cannot get every patient's CT or MRI at all times. Creating a method that can calculate angle error from plain radiographs is therefore important. Using vector and trigonometric mathematics, we gradually deduct our formula which can calculate angle error from goal angles (the angles we plan to achieve before operation) to result angles (the angles we get after operation) by two perpendicular radiographs. We also encode it into Micorsoft Excel (Redmond Campus, Redmond, Washington, U.S.) so that it becomes more user-friendly. We hope this tool can be used when evaluating TKR, corrective osteotomy, fracture fixation, and so on.

AB - Evaluating three-dimensional angle error is necessary because we cannot get every patient's CT or MRI at all times. Creating a method that can calculate angle error from plain radiographs is therefore important. Using vector and trigonometric mathematics, we gradually deduct our formula which can calculate angle error from goal angles (the angles we plan to achieve before operation) to result angles (the angles we get after operation) by two perpendicular radiographs. We also encode it into Micorsoft Excel (Redmond Campus, Redmond, Washington, U.S.) so that it becomes more user-friendly. We hope this tool can be used when evaluating TKR, corrective osteotomy, fracture fixation, and so on.

KW - Plain radiograph

KW - Three dimensional angle

KW - Two dimensional angle

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How to evaluate three dimensional angle error from plain radiographs

Abstract

Keywords

ASJC Scopus subject areas

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