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Article: Prediction of correction of scoliosis with use of the fulcrum bending radiograph

TitlePrediction of correction of scoliosis with use of the fulcrum bending radiograph
Authors
Issue Date1997
PublisherJournal of Bone and Joint Surgery. The Journal's web site is located at http://www.jbjs.org
Citation
Journal Of Bone And Joint Surgery - Series A, 1997, v. 79 n. 8, p. 1144-1150 How to Cite?
AbstractWe used a new method to assess spinal flexibility in thirty patients who were to be managed operatively for adolescent idiopathic scoliosis. The method involves placing the patient in the lateral decubitus position and bent over a fulcrum (a radiolucent padded cylinder) so that the spine is passively hinged open. For thoracic curves the fulcrum is centered under the rib corresponding to the apex of the curve, and for lumbar curves the fulcrum is placed directly under the apex. The preoperative workup for the thirty patients included an anteroposterior radiograph made with the patient standing, a lateral-bending radiograph made with the patient supine, and the new fulCrum bending radiograph. All patients were treated with posterior spinal arthrodesis with segmental spinal instrumentation. The degree of flexibility obtained with the traditional and new methods was compared with the degree of correction observed on the radiograph made, with the patient standing, one week after the operation. Preoperatively, the mean Cobb angle was 58 degrees on the anteroposterior radiograph made with the patient standing, 31 degrees on the lateral-bending radiograph made with the patient supine, and 24 degrees on the fulcrum bending radiograph. The mean angle was 25 degrees on the anteroposterior radiograph made one week postoperatively, so the mean correction was 57 per cent. The difference between the mean angle on the lateral-bending radiograph and that on the postoperative radiograph was significant (p < 0.001); however, the mean angle measured on the preoperative fulcrum bending radiograph and the postoperative angle were almost identical. We found the fulcrum bending radiograph to be more predictive of the degree of flexibility and correctability than the lateral- bending radiograph in this group of patients who had segmental spinal instrumentation for correction of idiopathic scoliosis.
Persistent Identifierhttp://hdl.handle.net/10722/170011
ISSN
2015 Impact Factor: 5.163
2015 SCImago Journal Rankings: 2.938
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorCheung, KMCen_US
dc.contributor.authorLuk, KDKen_US
dc.date.accessioned2012-10-30T06:04:43Z-
dc.date.available2012-10-30T06:04:43Z-
dc.date.issued1997en_US
dc.identifier.citationJournal Of Bone And Joint Surgery - Series A, 1997, v. 79 n. 8, p. 1144-1150en_US
dc.identifier.issn0021-9355en_US
dc.identifier.urihttp://hdl.handle.net/10722/170011-
dc.description.abstractWe used a new method to assess spinal flexibility in thirty patients who were to be managed operatively for adolescent idiopathic scoliosis. The method involves placing the patient in the lateral decubitus position and bent over a fulcrum (a radiolucent padded cylinder) so that the spine is passively hinged open. For thoracic curves the fulcrum is centered under the rib corresponding to the apex of the curve, and for lumbar curves the fulcrum is placed directly under the apex. The preoperative workup for the thirty patients included an anteroposterior radiograph made with the patient standing, a lateral-bending radiograph made with the patient supine, and the new fulCrum bending radiograph. All patients were treated with posterior spinal arthrodesis with segmental spinal instrumentation. The degree of flexibility obtained with the traditional and new methods was compared with the degree of correction observed on the radiograph made, with the patient standing, one week after the operation. Preoperatively, the mean Cobb angle was 58 degrees on the anteroposterior radiograph made with the patient standing, 31 degrees on the lateral-bending radiograph made with the patient supine, and 24 degrees on the fulcrum bending radiograph. The mean angle was 25 degrees on the anteroposterior radiograph made one week postoperatively, so the mean correction was 57 per cent. The difference between the mean angle on the lateral-bending radiograph and that on the postoperative radiograph was significant (p < 0.001); however, the mean angle measured on the preoperative fulcrum bending radiograph and the postoperative angle were almost identical. We found the fulcrum bending radiograph to be more predictive of the degree of flexibility and correctability than the lateral- bending radiograph in this group of patients who had segmental spinal instrumentation for correction of idiopathic scoliosis.en_US
dc.languageengen_US
dc.publisherJournal of Bone and Joint Surgery. The Journal's web site is located at http://www.jbjs.orgen_US
dc.relation.ispartofJournal of Bone and Joint Surgery - Series Aen_US
dc.subject.meshAdolescenten_US
dc.subject.meshAdulten_US
dc.subject.meshChilden_US
dc.subject.meshHumansen_US
dc.subject.meshPredictive Value Of Testsen_US
dc.subject.meshRadiography - Methodsen_US
dc.subject.meshScoliosis - Radiography - Surgeryen_US
dc.subject.meshSpinal Fusionen_US
dc.titlePrediction of correction of scoliosis with use of the fulcrum bending radiographen_US
dc.typeArticleen_US
dc.identifier.emailCheung, KMC:cheungmc@hku.hken_US
dc.identifier.emailLuk, KDK:hcm21000@hku.hken_US
dc.identifier.authorityCheung, KMC=rp00387en_US
dc.identifier.authorityLuk, KDK=rp00333en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.pmid9278073-
dc.identifier.scopuseid_2-s2.0-0030878173en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0030878173&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume79en_US
dc.identifier.issue8en_US
dc.identifier.spage1144en_US
dc.identifier.epage1150en_US
dc.identifier.isiWOS:A1997XT05600005-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridCheung, KMC=7402406754en_US
dc.identifier.scopusauthoridLuk, KDK=7201921573en_US

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