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Conference Paper: Selection of fusion levels in adolescent idiopathic scoliosis (AIS) using the fulcrum bending radiograph prediction: verification based on pedicle screw strategy

TitleSelection of fusion levels in adolescent idiopathic scoliosis (AIS) using the fulcrum bending radiograph prediction: verification based on pedicle screw strategy
Authors
KeywordsMedical sciences medical sciences
Computer applications
Issue Date2010
PublisherIOS Press. The Journal's web site is located at http://www.iospress.nl
Citation
The 8th Meeting of the International Research Society of Spinal Deformities (IRSSD 2010), Montreal, Canada, 1-3 July 2010. In Studies in Health Technology and Informatics, 2010, v. 158, p. 316 How to Cite?
AbstractINTRODUCTION: Selecting fusion levels based on the Luk et al (SPINE, 2008) criteria for operative management of thoracic AIS with hook and hybrid systems yields acceptable curve correction and balance parameters. However, it is unknown whether utilizing a purely pedicle screw strategy is safe and effective. MATERIALS AND METHODS: A prospective radiographic analyses (preoperative and postoperative 1 week and 1 year) of 25 operative thoracic AIS patients undergoing pedicle screw fixation. Radiographic measurement parameters entailed standing coronal/sagittal and FBR Cobb angles, FBR flexibility, fulcrum bending correction index (FBCI), truncal shift, radiographic shoulder height (RSH), and list. Fusion level selection was based on the Luk et al criteria and compared to conventional techniques. RESULTS: In the primary curve, the mean preoperative and final follow-up standing coronal Cobb angles were 60.6deg and 22.4deg, respectively (p<0.001). Mean immediate and final follow-up FBCIs were 124.2% and 111.3%, respectively. A mean 4.8deg loss of curve correction from immediate to final follow-up was observed (p<0.0001). Nineteen patients (76%) had distal levels saved (mean: 1.2 levels) in comparison to conventional techniques. A significant decrease in truncal shift was noted from preoperative to final follow-up (p<0.01). No statistically significant difference from preoperative to final follow-up was noted in RSH and list (p>0.05). CONCLUSIONS: This study suggests that pedicle screw fixation obtains greater deformity correction than hook and hybrid systems, and improves balance without compromising fusion levels.
DescriptionPoster Session - Treatment: no. 41
Persistent Identifierhttp://hdl.handle.net/10722/142872
ISSN
2015 SCImago Journal Rankings: 0.243
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorCheung, KMCen_US
dc.contributor.authorNatarajan, Den_US
dc.contributor.authorSamartzis, Den_US
dc.contributor.authorLeung, YLen_US
dc.contributor.authorCheung, WYen_US
dc.contributor.authorWong, YWen_US
dc.contributor.authorLuk, KDKen_US
dc.date.accessioned2011-10-28T02:57:56Z-
dc.date.available2011-10-28T02:57:56Z-
dc.date.issued2010en_US
dc.identifier.citationThe 8th Meeting of the International Research Society of Spinal Deformities (IRSSD 2010), Montreal, Canada, 1-3 July 2010. In Studies in Health Technology and Informatics, 2010, v. 158, p. 316en_US
dc.identifier.issn0926-9630-
dc.identifier.urihttp://hdl.handle.net/10722/142872-
dc.descriptionPoster Session - Treatment: no. 41-
dc.description.abstractINTRODUCTION: Selecting fusion levels based on the Luk et al (SPINE, 2008) criteria for operative management of thoracic AIS with hook and hybrid systems yields acceptable curve correction and balance parameters. However, it is unknown whether utilizing a purely pedicle screw strategy is safe and effective. MATERIALS AND METHODS: A prospective radiographic analyses (preoperative and postoperative 1 week and 1 year) of 25 operative thoracic AIS patients undergoing pedicle screw fixation. Radiographic measurement parameters entailed standing coronal/sagittal and FBR Cobb angles, FBR flexibility, fulcrum bending correction index (FBCI), truncal shift, radiographic shoulder height (RSH), and list. Fusion level selection was based on the Luk et al criteria and compared to conventional techniques. RESULTS: In the primary curve, the mean preoperative and final follow-up standing coronal Cobb angles were 60.6deg and 22.4deg, respectively (p<0.001). Mean immediate and final follow-up FBCIs were 124.2% and 111.3%, respectively. A mean 4.8deg loss of curve correction from immediate to final follow-up was observed (p<0.0001). Nineteen patients (76%) had distal levels saved (mean: 1.2 levels) in comparison to conventional techniques. A significant decrease in truncal shift was noted from preoperative to final follow-up (p<0.01). No statistically significant difference from preoperative to final follow-up was noted in RSH and list (p>0.05). CONCLUSIONS: This study suggests that pedicle screw fixation obtains greater deformity correction than hook and hybrid systems, and improves balance without compromising fusion levels.-
dc.languageengen_US
dc.publisherIOS Press. The Journal's web site is located at http://www.iospress.nl-
dc.relation.ispartofStudies in Health Technology and Informaticsen_US
dc.subjectMedical sciences medical sciences-
dc.subjectComputer applications-
dc.titleSelection of fusion levels in adolescent idiopathic scoliosis (AIS) using the fulcrum bending radiograph prediction: verification based on pedicle screw strategyen_US
dc.typeConference_Paperen_US
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0926-9630&volume=158&spage=316&epage=&date=2010&atitle=Selection+of+fusion+levels+in+adolescent+idiopathic+scoliosis+(AIS)+using+the+fulcrum+bending+radiograph+prediction:+verification+based+on+pedicle+screw+strategy-
dc.identifier.emailCheung, KMC: cheungmc@hku.hken_US
dc.identifier.emailNatarajan, D: hkdeepa@gmail.comen_US
dc.identifier.emailSamartzis, D: dspine@hku.hken_US
dc.identifier.emailLeung, YL: yleung1@hku.hken_US
dc.identifier.emailCheung, WY: lcheung@hkucc.hku.hken_US
dc.identifier.emailWong, YW: yatwa@hkucc.hku.hken_US
dc.identifier.emailLuk, KDK: hcm21000@hku.hk-
dc.identifier.authorityCheung, KMC=rp00387en_US
dc.identifier.authoritySamartzis, D=rp01430en_US
dc.identifier.authorityLuk, KDK=rp00333en_US
dc.identifier.doi10.3233/978-1-60750-573-0-316-
dc.identifier.hkuros173018en_US
dc.identifier.hkuros197064-
dc.identifier.hkuros197196-
dc.identifier.hkuros255961-
dc.identifier.volume158-
dc.identifier.spage316-
dc.identifier.epage316-
dc.identifier.isiWOS:000325662300132-
dc.description.otherThe 8th Meeting of the International Research Society of Spinal Deformities (IRSSD 2010), Montreal, Canada, 1-3 July 2010. In Studies in Health Technology and Informatics, 2010, v. 158, p. 316-

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