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Pre-contoured Plate Fit Assessment for Acetabular Fractures.

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Title: Pre-contoured Plate Fit Assessment for Acetabular Fractures.
Authors: van Veldhuizen, Willemina A.1 (AUTHOR) w.a.van.veldhuizen@umcg.nl, Assink, Nick1,2 (AUTHOR), Schuurmann, Richte C. L.1,3 (AUTHOR), Firoozabadi, Reza4 (AUTHOR), ten Duis, Kaj1 (AUTHOR), de Vries, Jean-Paul P. M.1 (AUTHOR), Wolterink, Jelmer M.5 (AUTHOR), IJpma, Frank F. A.1 (AUTHOR)
Source: Annals of Biomedical Engineering. Sep2025, Vol. 53 Issue 9, p2299-2308. 10p.
Subjects: Pelvis, Bone plates (Orthopedics), Three-dimensional modeling, Anatomical variation, Operative surgery, Computed tomography, Hip fractures
Abstract: Purpose: Insufficient fitting of pre-contoured plates for acetabular fractures might lead to inadequate fracture reduction, but it is unclear in which patients pre-contoured plates fit adequately. The aims of this study were to assess plate fitting in sex- and height-specific anatomical variations of the hemipelvis, and categorizing the outcomes as moderate or good fit. Methods: 3D models from computed tomography (CT) scans were obtained from a dataset of 200 patients with an intact left hemipelvis. This dataset was divided into eight subgroups, based on sex and body height, and the plate was virtually fitted on each shape. Plate fitting was assessed by computing the iliopectineal line, the quadrilateral slope, and the root mean square distance (RMSD) between each coordinate of the plate and its closest coordinate on the hemipelvis. Results: The mean age was 56 ± 16 years, and the mean height was 173 ± 10 cm. All female pelves had a moderate fit, mainly because the plate length either exceeded the iliopectineal line length, or the plate's anterior aspect was directed too ventrally. Three out of four male pelves had a good fit. Only the small height subgroup (<175 cm) showed a moderate fit due to the plate length exceeding the iliopectineal line length and a relatively high median RMSD value (1.5 [0.8–2.0] mm) in mid-section of the plate. Conclusions: In acetabular fracture surgery, both visual and quantitative evaluation of suprapectineal plate fitting in sex- and body height-specific subgroups showed moderate fitting in female pelvic shapes, indicating a need for substantial intraoperative bending. This suggests the need for different sizes and contours of future suprapectineal plates in acetabular fracture surgery. [ABSTRACT FROM AUTHOR]
Copyright of Annals of Biomedical Engineering is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Pre-contoured Plate Fit Assessment for Acetabular Fractures.
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  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22van+Veldhuizen%2C+Willemina+A%2E%22&quot;&gt;van Veldhuizen, Willemina A.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;i&gt; w.a.van.veldhuizen@umcg.nl&lt;/i&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Assink%2C+Nick%22&quot;&gt;Assink, Nick&lt;/searchLink&gt;&lt;relatesTo&gt;1,2&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Schuurmann%2C+Richte+C%2E+L%2E%22&quot;&gt;Schuurmann, Richte C. L.&lt;/searchLink&gt;&lt;relatesTo&gt;1,3&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Firoozabadi%2C+Reza%22&quot;&gt;Firoozabadi, Reza&lt;/searchLink&gt;&lt;relatesTo&gt;4&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22ten+Duis%2C+Kaj%22&quot;&gt;ten Duis, Kaj&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22de+Vries%2C+Jean-Paul+P%2E+M%2E%22&quot;&gt;de Vries, Jean-Paul P. M.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Wolterink%2C+Jelmer+M%2E%22&quot;&gt;Wolterink, Jelmer M.&lt;/searchLink&gt;&lt;relatesTo&gt;5&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22IJpma%2C+Frank+F%2E+A%2E%22&quot;&gt;IJpma, Frank F. A.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)
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  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22Annals+of+Biomedical+Engineering%22&quot;&gt;Annals of Biomedical Engineering&lt;/searchLink&gt;. Sep2025, Vol. 53 Issue 9, p2299-2308. 10p.
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– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Purpose: Insufficient fitting of pre-contoured plates for acetabular fractures might lead to inadequate fracture reduction, but it is unclear in which patients pre-contoured plates fit adequately. The aims of this study were to assess plate fitting in sex- and height-specific anatomical variations of the hemipelvis, and categorizing the outcomes as moderate or good fit. Methods: 3D models from computed tomography (CT) scans were obtained from a dataset of 200 patients with an intact left hemipelvis. This dataset was divided into eight subgroups, based on sex and body height, and the plate was virtually fitted on each shape. Plate fitting was assessed by computing the iliopectineal line, the quadrilateral slope, and the root mean square distance (RMSD) between each coordinate of the plate and its closest coordinate on the hemipelvis. Results: The mean age was 56 &#177; 16 years, and the mean height was 173 &#177; 10 cm. All female pelves had a moderate fit, mainly because the plate length either exceeded the iliopectineal line length, or the plate&#39;s anterior aspect was directed too ventrally. Three out of four male pelves had a good fit. Only the small height subgroup (&lt;175 cm) showed a moderate fit due to the plate length exceeding the iliopectineal line length and a relatively high median RMSD value (1.5 [0.8–2.0] mm) in mid-section of the plate. Conclusions: In acetabular fracture surgery, both visual and quantitative evaluation of suprapectineal plate fitting in sex- and body height-specific subgroups showed moderate fitting in female pelvic shapes, indicating a need for substantial intraoperative bending. This suggests the need for different sizes and contours of future suprapectineal plates in acetabular fracture surgery. [ABSTRACT FROM AUTHOR]
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  Data: &lt;i&gt;Copyright of Annals of Biomedical Engineering is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
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        Value: 10.1007/s10439-025-03760-9
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      – SubjectFull: Pelvis
        Type: general
      – SubjectFull: Bone plates (Orthopedics)
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      – SubjectFull: Three-dimensional modeling
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      – SubjectFull: Computed tomography
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      – SubjectFull: Hip fractures
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              Text: Sep2025
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