Staff View: Prediction of postoperative curve correction based on the supine radiographs for adult idiopathic scoliosis patients

Prediction of postoperative curve correction based on the supine radiographs for adult idiopathic scoliosis patients

BACKGROUND CONTEXT: Preoperative supine radiographs are mandatory in the new adult idiopathic scoliosis (AdIS) classification. Supine radiographs are easily reproducible and highly predictive of side bending radiographs. However, few studies evaluated the use of supine radiographs in predicting post...

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Main Authors:	Chan, Chris Yin Wei, Tan, Yee Wern Evonne, Chandren, Josephine Rebecca, Chandirasegaran, Saturveithan, Chung, Weng Hong, Chiu, Chee Kidd, Kwan, Mun Keong
Format:	Article
Published:	Elsevier 2024
Subjects:	R Medicine (General)
Online Access:	http://eprints.um.edu.my/46876/ https://doi.org/10.1016/j.spinee.2024.03.012
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spelling	my.um.eprints.468762025-01-16T02:38:36Z http://eprints.um.edu.my/46876/ Prediction of postoperative curve correction based on the supine radiographs for adult idiopathic scoliosis patients Chan, Chris Yin Wei Tan, Yee Wern Evonne Chandren, Josephine Rebecca Chandirasegaran, Saturveithan Chung, Weng Hong Chiu, Chee Kidd Kwan, Mun Keong R Medicine (General) BACKGROUND CONTEXT: Preoperative supine radiographs are mandatory in the new adult idiopathic scoliosis (AdIS) classification. Supine radiographs are easily reproducible and highly predictive of side bending radiographs. However, few studies evaluated the use of supine radiographs in predicting postoperative curve correction after posterior spinal fusion (PSF) in AdIS. PURPOSE: To investigate the use of supine and side bending (SB) radiographs in predicting postoperative curve correction in AdIS patients who underwent PSF. STUDY DESIGN: Retrospective study. PATIENT SAMPLE: A total of 93 AdIS patients who underwent PSF between 2022 and 2023 were included. OUTCOME MEASURES: Demographic data were age, gender, height, weight, body mass index (BMI), Risser grade, Lenke curve types and Cobb angles. Main outcome measures were preoperative and immediate postoperative Cobb angle (proximal thoracic PT], main thoracic MT] and thoracolumbar/lumbar TL/L] curves), Supine Cobb angle and Flexibility rate (PT, MT and TL/L), and Correction rate (PT, MT and TL/L). METHODS: Correlation study was performed between Supine Cobb angle vs postoperative Cobb angle for PT, MT and TL/L curves. A predictive formula was derived from the correlation plots. RESULTS: A total of 93 subjects were included in our study with a median age of 24.7 years and comprised of 80 females (86.0%). Preoperative Supine Cobb angle (r=0.835, r=0.881, r=0.767, p<.001) < .001) and preoperative SB Cobb angle (r=0.815, r=0.872, r=0.801, p<.001) < .001) showed similar strong positive correlation with postoperative PT, MT and TL/L Cobb angle, but preoperative Supine Cobb angle had slightly stronger correlation in PT and MT, whereas preoperative SB Cobb angle had stronger correlation in TL/L curve. Using the derived predictive formulae, there was a significant, strong, positive correlation between the predicted value and actual value of postoperative standing Cobb angle, (r=0.852, p<.001), < .001), with 71.0% of the patients had predicted postoperative Cobb angle from the supine radiographs within 5 & ring; of the actual value. CONCLUSION: Both supine radiographs and side bending radiographs had strong predictability of the postoperative Cobb angle for PT, MT and TL/L curves. In 71.0% of patients, the actual postoperative Cobb angle was within 5 & ring; of the predicted postoperative Cobb angle using the predictive formulae. (c) 2024 Elsevier Inc. All rights reserved. Elsevier 2024-07 Article PeerReviewed Chan, Chris Yin Wei and Tan, Yee Wern Evonne and Chandren, Josephine Rebecca and Chandirasegaran, Saturveithan and Chung, Weng Hong and Chiu, Chee Kidd and Kwan, Mun Keong (2024) Prediction of postoperative curve correction based on the supine radiographs for adult idiopathic scoliosis patients. Spine Journal, 24 (7). pp. 1272-1281. ISSN 1529-9430, DOI https://doi.org/10.1016/j.spinee.2024.03.012 <https://doi.org/10.1016/j.spinee.2024.03.012>. https://doi.org/10.1016/j.spinee.2024.03.012 10.1016/j.spinee.2024.03.012
institution	Universiti Malaya
building	UM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaya
content_source	UM Research Repository
url_provider	http://eprints.um.edu.my/
topic	R Medicine (General)
spellingShingle	R Medicine (General) Chan, Chris Yin Wei Tan, Yee Wern Evonne Chandren, Josephine Rebecca Chandirasegaran, Saturveithan Chung, Weng Hong Chiu, Chee Kidd Kwan, Mun Keong Prediction of postoperative curve correction based on the supine radiographs for adult idiopathic scoliosis patients
description	BACKGROUND CONTEXT: Preoperative supine radiographs are mandatory in the new adult idiopathic scoliosis (AdIS) classification. Supine radiographs are easily reproducible and highly predictive of side bending radiographs. However, few studies evaluated the use of supine radiographs in predicting postoperative curve correction after posterior spinal fusion (PSF) in AdIS. PURPOSE: To investigate the use of supine and side bending (SB) radiographs in predicting postoperative curve correction in AdIS patients who underwent PSF. STUDY DESIGN: Retrospective study. PATIENT SAMPLE: A total of 93 AdIS patients who underwent PSF between 2022 and 2023 were included. OUTCOME MEASURES: Demographic data were age, gender, height, weight, body mass index (BMI), Risser grade, Lenke curve types and Cobb angles. Main outcome measures were preoperative and immediate postoperative Cobb angle (proximal thoracic PT], main thoracic MT] and thoracolumbar/lumbar TL/L] curves), Supine Cobb angle and Flexibility rate (PT, MT and TL/L), and Correction rate (PT, MT and TL/L). METHODS: Correlation study was performed between Supine Cobb angle vs postoperative Cobb angle for PT, MT and TL/L curves. A predictive formula was derived from the correlation plots. RESULTS: A total of 93 subjects were included in our study with a median age of 24.7 years and comprised of 80 females (86.0%). Preoperative Supine Cobb angle (r=0.835, r=0.881, r=0.767, p<.001) < .001) and preoperative SB Cobb angle (r=0.815, r=0.872, r=0.801, p<.001) < .001) showed similar strong positive correlation with postoperative PT, MT and TL/L Cobb angle, but preoperative Supine Cobb angle had slightly stronger correlation in PT and MT, whereas preoperative SB Cobb angle had stronger correlation in TL/L curve. Using the derived predictive formulae, there was a significant, strong, positive correlation between the predicted value and actual value of postoperative standing Cobb angle, (r=0.852, p<.001), < .001), with 71.0% of the patients had predicted postoperative Cobb angle from the supine radiographs within 5 & ring; of the actual value. CONCLUSION: Both supine radiographs and side bending radiographs had strong predictability of the postoperative Cobb angle for PT, MT and TL/L curves. In 71.0% of patients, the actual postoperative Cobb angle was within 5 & ring; of the predicted postoperative Cobb angle using the predictive formulae. (c) 2024 Elsevier Inc. All rights reserved.
format	Article
author	Chan, Chris Yin Wei Tan, Yee Wern Evonne Chandren, Josephine Rebecca Chandirasegaran, Saturveithan Chung, Weng Hong Chiu, Chee Kidd Kwan, Mun Keong
author_facet	Chan, Chris Yin Wei Tan, Yee Wern Evonne Chandren, Josephine Rebecca Chandirasegaran, Saturveithan Chung, Weng Hong Chiu, Chee Kidd Kwan, Mun Keong
author_sort	Chan, Chris Yin Wei
title	Prediction of postoperative curve correction based on the supine radiographs for adult idiopathic scoliosis patients
title_short	Prediction of postoperative curve correction based on the supine radiographs for adult idiopathic scoliosis patients
title_full	Prediction of postoperative curve correction based on the supine radiographs for adult idiopathic scoliosis patients
title_fullStr	Prediction of postoperative curve correction based on the supine radiographs for adult idiopathic scoliosis patients
title_full_unstemmed	Prediction of postoperative curve correction based on the supine radiographs for adult idiopathic scoliosis patients
title_sort	prediction of postoperative curve correction based on the supine radiographs for adult idiopathic scoliosis patients
publisher	Elsevier
publishDate	2024
url	http://eprints.um.edu.my/46876/ https://doi.org/10.1016/j.spinee.2024.03.012
_version_	1825160602098597888
score	13.239859

Prediction of postoperative curve correction based on the supine radiographs for adult idiopathic scoliosis patients

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