Video-assisted thoracoscopic surgery for correction of adolescent idiopatic scoliosis

Comparison of 4.5 mm versus 5.5 mm rod constructs

Hak Sun Kim, Jin Oh Park, Ankur Nanda, Phillip Anthony Kho, Jin Young Kim, Hwan Mo Lee, seonghwan moon, Jung Won Ha, Eun Kyoung Ahn, Dong Eun Shin, Sung Jun Kim, Eun Su Moon

Research output: Contribution to journalReview article

3 Citations (Scopus)

Abstract

Purpose: The purpose of this study is to report the comparative results of thoracoscopic correction achieved via cantilever technique using a 4.5 mm thin rod and the poly-axial reduction screw technique using a 5.5 mm thick rod in Lenke type 1 adolescent idiopathic scoliosis (AIS). Materials and Methods: Radiographic data, Scoliosis Research Society (SRS) patient-based outcome questionnaires, and operative records were reviewed for forty-nine patients undergoing surgical treatment of scoliosis. The study group was divided into a 4.5 mm thin rod group (n = 24) and a 5.5 mm thick rod group (n = 25). The radiographic parameters that were analyzed included coronal curve correction, the most caudal instrumented vertebra tilt angle correction, coronal balance, and thoracic kyphosis. Results: The major curve was corrected from 49.8° and 47.2° pre-operatively to 24.5° and 18.8° at the final follow-up for the thin and thick rod groups, respectively (50.8% vs. 60.2% correction). There were no significant differences between the two groups in terms of kyphosis, coronal balance, or tilt angle at the time of the final follow-up. The mean number of levels fused was 6.2 in the thin rod group, compared with 5.9 levels in the thick rod group. There were no major intraoperative complications in either group. Conclusion: Significant correction loss was observed in the thin rod system at the final follow-up though both groups had comparable correction immediately post-operative. Therefore, the thick rod with poly axial screw system helps to maintain post-operative correction.

Original languageEnglish
Pages (from-to)753-760
Number of pages8
JournalYonsei medical journal
Volume51
Issue number5
DOIs
Publication statusPublished - 2010 Jan 1

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Video-Assisted Thoracic Surgery
Scoliosis
Kyphosis
Intraoperative Complications
Spine
Thorax
Research
Therapeutics

All Science Journal Classification (ASJC) codes

  • Medicine(all)

Cite this

Kim, Hak Sun ; Park, Jin Oh ; Nanda, Ankur ; Kho, Phillip Anthony ; Kim, Jin Young ; Lee, Hwan Mo ; moon, seonghwan ; Ha, Jung Won ; Ahn, Eun Kyoung ; Shin, Dong Eun ; Kim, Sung Jun ; Moon, Eun Su. / Video-assisted thoracoscopic surgery for correction of adolescent idiopatic scoliosis : Comparison of 4.5 mm versus 5.5 mm rod constructs. In: Yonsei medical journal. 2010 ; Vol. 51, No. 5. pp. 753-760.
@article{f39826ce00d3425e86d44ff8906e1670,
title = "Video-assisted thoracoscopic surgery for correction of adolescent idiopatic scoliosis: Comparison of 4.5 mm versus 5.5 mm rod constructs",
abstract = "Purpose: The purpose of this study is to report the comparative results of thoracoscopic correction achieved via cantilever technique using a 4.5 mm thin rod and the poly-axial reduction screw technique using a 5.5 mm thick rod in Lenke type 1 adolescent idiopathic scoliosis (AIS). Materials and Methods: Radiographic data, Scoliosis Research Society (SRS) patient-based outcome questionnaires, and operative records were reviewed for forty-nine patients undergoing surgical treatment of scoliosis. The study group was divided into a 4.5 mm thin rod group (n = 24) and a 5.5 mm thick rod group (n = 25). The radiographic parameters that were analyzed included coronal curve correction, the most caudal instrumented vertebra tilt angle correction, coronal balance, and thoracic kyphosis. Results: The major curve was corrected from 49.8° and 47.2° pre-operatively to 24.5° and 18.8° at the final follow-up for the thin and thick rod groups, respectively (50.8{\%} vs. 60.2{\%} correction). There were no significant differences between the two groups in terms of kyphosis, coronal balance, or tilt angle at the time of the final follow-up. The mean number of levels fused was 6.2 in the thin rod group, compared with 5.9 levels in the thick rod group. There were no major intraoperative complications in either group. Conclusion: Significant correction loss was observed in the thin rod system at the final follow-up though both groups had comparable correction immediately post-operative. Therefore, the thick rod with poly axial screw system helps to maintain post-operative correction.",
author = "Kim, {Hak Sun} and Park, {Jin Oh} and Ankur Nanda and Kho, {Phillip Anthony} and Kim, {Jin Young} and Lee, {Hwan Mo} and seonghwan moon and Ha, {Jung Won} and Ahn, {Eun Kyoung} and Shin, {Dong Eun} and Kim, {Sung Jun} and Moon, {Eun Su}",
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month = "1",
day = "1",
doi = "10.3349/ymj.2010.51.5.753",
language = "English",
volume = "51",
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Kim, HS, Park, JO, Nanda, A, Kho, PA, Kim, JY, Lee, HM, moon, S, Ha, JW, Ahn, EK, Shin, DE, Kim, SJ & Moon, ES 2010, 'Video-assisted thoracoscopic surgery for correction of adolescent idiopatic scoliosis: Comparison of 4.5 mm versus 5.5 mm rod constructs', Yonsei medical journal, vol. 51, no. 5, pp. 753-760. https://doi.org/10.3349/ymj.2010.51.5.753

Video-assisted thoracoscopic surgery for correction of adolescent idiopatic scoliosis : Comparison of 4.5 mm versus 5.5 mm rod constructs. / Kim, Hak Sun; Park, Jin Oh; Nanda, Ankur; Kho, Phillip Anthony; Kim, Jin Young; Lee, Hwan Mo; moon, seonghwan; Ha, Jung Won; Ahn, Eun Kyoung; Shin, Dong Eun; Kim, Sung Jun; Moon, Eun Su.

In: Yonsei medical journal, Vol. 51, No. 5, 01.01.2010, p. 753-760.

Research output: Contribution to journalReview article

TY - JOUR

T1 - Video-assisted thoracoscopic surgery for correction of adolescent idiopatic scoliosis

T2 - Comparison of 4.5 mm versus 5.5 mm rod constructs

AU - Kim, Hak Sun

AU - Park, Jin Oh

AU - Nanda, Ankur

AU - Kho, Phillip Anthony

AU - Kim, Jin Young

AU - Lee, Hwan Mo

AU - moon, seonghwan

AU - Ha, Jung Won

AU - Ahn, Eun Kyoung

AU - Shin, Dong Eun

AU - Kim, Sung Jun

AU - Moon, Eun Su

PY - 2010/1/1

Y1 - 2010/1/1

N2 - Purpose: The purpose of this study is to report the comparative results of thoracoscopic correction achieved via cantilever technique using a 4.5 mm thin rod and the poly-axial reduction screw technique using a 5.5 mm thick rod in Lenke type 1 adolescent idiopathic scoliosis (AIS). Materials and Methods: Radiographic data, Scoliosis Research Society (SRS) patient-based outcome questionnaires, and operative records were reviewed for forty-nine patients undergoing surgical treatment of scoliosis. The study group was divided into a 4.5 mm thin rod group (n = 24) and a 5.5 mm thick rod group (n = 25). The radiographic parameters that were analyzed included coronal curve correction, the most caudal instrumented vertebra tilt angle correction, coronal balance, and thoracic kyphosis. Results: The major curve was corrected from 49.8° and 47.2° pre-operatively to 24.5° and 18.8° at the final follow-up for the thin and thick rod groups, respectively (50.8% vs. 60.2% correction). There were no significant differences between the two groups in terms of kyphosis, coronal balance, or tilt angle at the time of the final follow-up. The mean number of levels fused was 6.2 in the thin rod group, compared with 5.9 levels in the thick rod group. There were no major intraoperative complications in either group. Conclusion: Significant correction loss was observed in the thin rod system at the final follow-up though both groups had comparable correction immediately post-operative. Therefore, the thick rod with poly axial screw system helps to maintain post-operative correction.

AB - Purpose: The purpose of this study is to report the comparative results of thoracoscopic correction achieved via cantilever technique using a 4.5 mm thin rod and the poly-axial reduction screw technique using a 5.5 mm thick rod in Lenke type 1 adolescent idiopathic scoliosis (AIS). Materials and Methods: Radiographic data, Scoliosis Research Society (SRS) patient-based outcome questionnaires, and operative records were reviewed for forty-nine patients undergoing surgical treatment of scoliosis. The study group was divided into a 4.5 mm thin rod group (n = 24) and a 5.5 mm thick rod group (n = 25). The radiographic parameters that were analyzed included coronal curve correction, the most caudal instrumented vertebra tilt angle correction, coronal balance, and thoracic kyphosis. Results: The major curve was corrected from 49.8° and 47.2° pre-operatively to 24.5° and 18.8° at the final follow-up for the thin and thick rod groups, respectively (50.8% vs. 60.2% correction). There were no significant differences between the two groups in terms of kyphosis, coronal balance, or tilt angle at the time of the final follow-up. The mean number of levels fused was 6.2 in the thin rod group, compared with 5.9 levels in the thick rod group. There were no major intraoperative complications in either group. Conclusion: Significant correction loss was observed in the thin rod system at the final follow-up though both groups had comparable correction immediately post-operative. Therefore, the thick rod with poly axial screw system helps to maintain post-operative correction.

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U2 - 10.3349/ymj.2010.51.5.753

DO - 10.3349/ymj.2010.51.5.753

M3 - Review article

VL - 51

SP - 753

EP - 760

JO - Yonsei Medical Journal

JF - Yonsei Medical Journal

SN - 0513-5796

IS - 5

ER -