Evaluation of the three-dimensional deformities in scoliosis surgery with computed tomography

Efficacy and relationship with clinical outcomes

Jae-Young Hong, Seung-Woo Suh, T. R. Easwar, Hitesh N. Modi, Jae Hyuk Yang, Jung-Ho Park

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Study Design. Prospective radiological and clinical study with scoliosis patients. Objective. To determine the pre- and postoperative differences in the three-dimensional (3D) parameters and relationships with the outcome in scoliosis surgery. Summary of Background Data. Despite a proven important role of the 3D deformities in scoliosis, it is warranted to confirm the efficacy of these measurements, which carry a cost burden and radiation hazard. Methods. Fifty adolescent idiopathic scoliosis patients who underwent correction surgery were enrolled in this study. Pre- and postoperative whole spine radiographs and computed tomography were performed. The vertebral rotation (VR), rib hump index (RH), sternal shift (SS) on computed tomography were measured at the level of the apex in each patient. In addition, the patients described the SRS 30 (scoliosis research society 30) and ODI (owestry disability index) score. And, the differences in the parameter and the relationships between the radiological and clinical outcomes were analyzed. Results. There was significant decrease in the coronal curvature, RH, and SS after surgery (P < 0.0001). In addition, the VR decreased postoperatively but that was not significant (P = 0.236). There were significant relationships between the parameters in the coronal curvature, VR, RH, and SS, pre- and postoperatively (P < 0.05). However, regarding the pre- and postoperative differences, only the changes in the SS were related to changes in the coronal curvature (P = 0.006). In addition, there were significant relationships between the parameters and outcomes. The changes in ODI were related to changes in the coronal curvature, VR, RH, and SS (P < 0.0001, P = 0.039, P < 0.0001, P = 0.019, respectively). However, the changes in the SRS was only related to the changes in SS (P < 0.0001). Conclusion. There were significant correlations between the VR, RH, and SS with the coronal curvature, pre- and postoperatively. In addition, there were significant correlations between the 3D deformities and outcomes. Computed tomography based measurements of 3D deformities can provide useful information in planning, and predicting the outcome of corrective surgery.

Original languageEnglish
JournalSpine
Volume36
Issue number19
DOIs
Publication statusPublished - 2011 Sep 1

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Scoliosis
Ribs
Tomography
Spine
Prospective Studies
Radiation
Costs and Cost Analysis
Research

Keywords

  • adolescent idiopathic scoliosis
  • computed tomography
  • rib hump index
  • sternal shift
  • vertebral rotation

ASJC Scopus subject areas

  • Clinical Neurology
  • Orthopedics and Sports Medicine

Cite this

Evaluation of the three-dimensional deformities in scoliosis surgery with computed tomography : Efficacy and relationship with clinical outcomes. / Hong, Jae-Young; Suh, Seung-Woo; Easwar, T. R.; Modi, Hitesh N.; Yang, Jae Hyuk; Park, Jung-Ho.

In: Spine, Vol. 36, No. 19, 01.09.2011.

Research output: Contribution to journalArticle

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title = "Evaluation of the three-dimensional deformities in scoliosis surgery with computed tomography: Efficacy and relationship with clinical outcomes",
abstract = "Study Design. Prospective radiological and clinical study with scoliosis patients. Objective. To determine the pre- and postoperative differences in the three-dimensional (3D) parameters and relationships with the outcome in scoliosis surgery. Summary of Background Data. Despite a proven important role of the 3D deformities in scoliosis, it is warranted to confirm the efficacy of these measurements, which carry a cost burden and radiation hazard. Methods. Fifty adolescent idiopathic scoliosis patients who underwent correction surgery were enrolled in this study. Pre- and postoperative whole spine radiographs and computed tomography were performed. The vertebral rotation (VR), rib hump index (RH), sternal shift (SS) on computed tomography were measured at the level of the apex in each patient. In addition, the patients described the SRS 30 (scoliosis research society 30) and ODI (owestry disability index) score. And, the differences in the parameter and the relationships between the radiological and clinical outcomes were analyzed. Results. There was significant decrease in the coronal curvature, RH, and SS after surgery (P < 0.0001). In addition, the VR decreased postoperatively but that was not significant (P = 0.236). There were significant relationships between the parameters in the coronal curvature, VR, RH, and SS, pre- and postoperatively (P < 0.05). However, regarding the pre- and postoperative differences, only the changes in the SS were related to changes in the coronal curvature (P = 0.006). In addition, there were significant relationships between the parameters and outcomes. The changes in ODI were related to changes in the coronal curvature, VR, RH, and SS (P < 0.0001, P = 0.039, P < 0.0001, P = 0.019, respectively). However, the changes in the SRS was only related to the changes in SS (P < 0.0001). Conclusion. There were significant correlations between the VR, RH, and SS with the coronal curvature, pre- and postoperatively. In addition, there were significant correlations between the 3D deformities and outcomes. Computed tomography based measurements of 3D deformities can provide useful information in planning, and predicting the outcome of corrective surgery.",
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AU - Suh, Seung-Woo

AU - Easwar, T. R.

AU - Modi, Hitesh N.

AU - Yang, Jae Hyuk

AU - Park, Jung-Ho

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N2 - Study Design. Prospective radiological and clinical study with scoliosis patients. Objective. To determine the pre- and postoperative differences in the three-dimensional (3D) parameters and relationships with the outcome in scoliosis surgery. Summary of Background Data. Despite a proven important role of the 3D deformities in scoliosis, it is warranted to confirm the efficacy of these measurements, which carry a cost burden and radiation hazard. Methods. Fifty adolescent idiopathic scoliosis patients who underwent correction surgery were enrolled in this study. Pre- and postoperative whole spine radiographs and computed tomography were performed. The vertebral rotation (VR), rib hump index (RH), sternal shift (SS) on computed tomography were measured at the level of the apex in each patient. In addition, the patients described the SRS 30 (scoliosis research society 30) and ODI (owestry disability index) score. And, the differences in the parameter and the relationships between the radiological and clinical outcomes were analyzed. Results. There was significant decrease in the coronal curvature, RH, and SS after surgery (P < 0.0001). In addition, the VR decreased postoperatively but that was not significant (P = 0.236). There were significant relationships between the parameters in the coronal curvature, VR, RH, and SS, pre- and postoperatively (P < 0.05). However, regarding the pre- and postoperative differences, only the changes in the SS were related to changes in the coronal curvature (P = 0.006). In addition, there were significant relationships between the parameters and outcomes. The changes in ODI were related to changes in the coronal curvature, VR, RH, and SS (P < 0.0001, P = 0.039, P < 0.0001, P = 0.019, respectively). However, the changes in the SRS was only related to the changes in SS (P < 0.0001). Conclusion. There were significant correlations between the VR, RH, and SS with the coronal curvature, pre- and postoperatively. In addition, there were significant correlations between the 3D deformities and outcomes. Computed tomography based measurements of 3D deformities can provide useful information in planning, and predicting the outcome of corrective surgery.

AB - Study Design. Prospective radiological and clinical study with scoliosis patients. Objective. To determine the pre- and postoperative differences in the three-dimensional (3D) parameters and relationships with the outcome in scoliosis surgery. Summary of Background Data. Despite a proven important role of the 3D deformities in scoliosis, it is warranted to confirm the efficacy of these measurements, which carry a cost burden and radiation hazard. Methods. Fifty adolescent idiopathic scoliosis patients who underwent correction surgery were enrolled in this study. Pre- and postoperative whole spine radiographs and computed tomography were performed. The vertebral rotation (VR), rib hump index (RH), sternal shift (SS) on computed tomography were measured at the level of the apex in each patient. In addition, the patients described the SRS 30 (scoliosis research society 30) and ODI (owestry disability index) score. And, the differences in the parameter and the relationships between the radiological and clinical outcomes were analyzed. Results. There was significant decrease in the coronal curvature, RH, and SS after surgery (P < 0.0001). In addition, the VR decreased postoperatively but that was not significant (P = 0.236). There were significant relationships between the parameters in the coronal curvature, VR, RH, and SS, pre- and postoperatively (P < 0.05). However, regarding the pre- and postoperative differences, only the changes in the SS were related to changes in the coronal curvature (P = 0.006). In addition, there were significant relationships between the parameters and outcomes. The changes in ODI were related to changes in the coronal curvature, VR, RH, and SS (P < 0.0001, P = 0.039, P < 0.0001, P = 0.019, respectively). However, the changes in the SRS was only related to the changes in SS (P < 0.0001). Conclusion. There were significant correlations between the VR, RH, and SS with the coronal curvature, pre- and postoperatively. In addition, there were significant correlations between the 3D deformities and outcomes. Computed tomography based measurements of 3D deformities can provide useful information in planning, and predicting the outcome of corrective surgery.

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KW - rib hump index

KW - sternal shift

KW - vertebral rotation

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