Abstract
Objectives: The most important decision in distraction osteogenesis is the timing of fixator removal. Various methods have been tried, such as radiographic appearance of callus and bone mineral density (BMD) assessment, but none has acquired gold standard status. The purpose of this study was to develop another objective method of assessment of callus stiffness to help clinicians in taking the most important decision of when to remove the fixator. Materials and methods: We made a retrospective study of 70 patients to compare the BMD ratio and pixel value ratio. These ratios were calculated at the time of fixator removal, and Pearson's coefficient of correlation was used to show the comparability. Inter- and intra-observer variability of the new method was also tested. Results: Good correlation was found between BMD ratio and pixel value ratio, with a Pearson's coefficient of correlation of 0.79. The interobserver variability was also low, with high intra-observer reproducibility, suggesting that this test was simple to perform. Conclusion: Pixel value ratio is a good method for assessing callus stiffness, and it can be used to judge the timing of fixator removal.
| Original language | English |
|---|---|
| Pages (from-to) | 843-847 |
| Number of pages | 5 |
| Journal | Skeletal Radiology |
| Volume | 37 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2008 Sep 1 |
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Keywords
- BMD
- Callus stiffness
- Distraction osteogenesis
- Ilizarov
- Lengthening
- Pixel
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging
- Radiological and Ultrasound Technology
Cite this
Quantitative assessment of mineralization in distraction osteogenesis. / Hazra, Sunit; Song, Hae Ryong; Biswal, Sandeep; Lee, Suk Ha; Lee, Seok Hyun; Jang, Ki-Mo; Modi, Hitesh N.
In: Skeletal Radiology, Vol. 37, No. 9, 01.09.2008, p. 843-847.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Quantitative assessment of mineralization in distraction osteogenesis
AU - Hazra, Sunit
AU - Song, Hae Ryong
AU - Biswal, Sandeep
AU - Lee, Suk Ha
AU - Lee, Seok Hyun
AU - Jang, Ki-Mo
AU - Modi, Hitesh N.
PY - 2008/9/1
Y1 - 2008/9/1
N2 - Objectives: The most important decision in distraction osteogenesis is the timing of fixator removal. Various methods have been tried, such as radiographic appearance of callus and bone mineral density (BMD) assessment, but none has acquired gold standard status. The purpose of this study was to develop another objective method of assessment of callus stiffness to help clinicians in taking the most important decision of when to remove the fixator. Materials and methods: We made a retrospective study of 70 patients to compare the BMD ratio and pixel value ratio. These ratios were calculated at the time of fixator removal, and Pearson's coefficient of correlation was used to show the comparability. Inter- and intra-observer variability of the new method was also tested. Results: Good correlation was found between BMD ratio and pixel value ratio, with a Pearson's coefficient of correlation of 0.79. The interobserver variability was also low, with high intra-observer reproducibility, suggesting that this test was simple to perform. Conclusion: Pixel value ratio is a good method for assessing callus stiffness, and it can be used to judge the timing of fixator removal.
AB - Objectives: The most important decision in distraction osteogenesis is the timing of fixator removal. Various methods have been tried, such as radiographic appearance of callus and bone mineral density (BMD) assessment, but none has acquired gold standard status. The purpose of this study was to develop another objective method of assessment of callus stiffness to help clinicians in taking the most important decision of when to remove the fixator. Materials and methods: We made a retrospective study of 70 patients to compare the BMD ratio and pixel value ratio. These ratios were calculated at the time of fixator removal, and Pearson's coefficient of correlation was used to show the comparability. Inter- and intra-observer variability of the new method was also tested. Results: Good correlation was found between BMD ratio and pixel value ratio, with a Pearson's coefficient of correlation of 0.79. The interobserver variability was also low, with high intra-observer reproducibility, suggesting that this test was simple to perform. Conclusion: Pixel value ratio is a good method for assessing callus stiffness, and it can be used to judge the timing of fixator removal.
KW - BMD
KW - Callus stiffness
KW - Distraction osteogenesis
KW - Ilizarov
KW - Lengthening
KW - Pixel
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U2 - 10.1007/s00256-008-0495-7
DO - 10.1007/s00256-008-0495-7
M3 - Article
VL - 37
SP - 843
EP - 847
JO - Skeletal Radiology
JF - Skeletal Radiology
SN - 0364-2348
IS - 9
ER -