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Article: Evaluation of deformities and pulmonary function in adolescent idiopathic right thoracic scoliosis

TitleEvaluation of deformities and pulmonary function in adolescent idiopathic right thoracic scoliosis
Authors
KeywordsPrediction of lung function
Rib vertebral angle
Thoracic kyphosis
Vertebral rotational flexibility
Issue Date1995
PublisherSpringer. The Journal's web site is located at http://www.springer.com/medicine/orthopedics/journal/586
Citation
European Spine Journal, 1995, v. 4 n. 5, p. 274-279 How to Cite?
AbstractSeventy patients with adolescent idiopathic right thoracic scoliosis had full assessment of their pulmonary function using a computerised pulmonary function system. Their mean age at evaluation was 13.8 years. The following measurements were obtained from anteroposterior and lateral standing and antero-posterior supine bending radiographs: lateral curvature, vertebral rotation, kyphosis, maximum sterno-vertebral distance and apical rib-vertebral angles. Using the above measurements, the flexibility of curve, vertebral rotation and rib-vertebral angle asymmetry were calculated. Patients were classified into three groups on the basis of their predicted vital capacity, to determine whether radiological features of deformity can help identify patients with compromised pulmonary function. The mean Cobb angle and vertebral rotation for the 70 patients were 50° (range 35-100°) and 22° (range 1-44°) respectively. The mean flexibility of curve and vertebral rotation were 52% and 49% respectively. Mean thoracic kyphosis was 25°, ranging from -7 to 55°. Of the patients with Cobb angle less than 90°, 71% had vital capacity less than 80% of predicted values, and of these, 18% had marked compromise of vital capacity (less than 60% of predicted values). Mean values of Cobb angle, vertebral rotational flexibility, kyphosis, rib-vertebral angle asymmetry (in standing as well as supine bending radiographs) differed significantly between patients with more than 80% of predicted vital capacity and those with 60% or less of predicted values. Radiological features indicative of better pulmonary function were: rotational flexibility exceeding 55%, rib-vertebral angle asymmetry (standing) less than 25° and kyphosis greater than 15°. Two deformity parameters - that give a better prediction of pulmonary function than the widely used Cobb angle, vertebral rotational flexibility and rib-vertebral angle asymmetry - were identified in this study.
Persistent Identifierhttp://hdl.handle.net/10722/79654
ISSN
2015 Impact Factor: 2.132
2015 SCImago Journal Rankings: 0.972

 

DC FieldValueLanguage
dc.contributor.authorUpadhyay, SSen_HK
dc.contributor.authorMullaji, ABen_HK
dc.contributor.authorLuk, KDKen_HK
dc.contributor.authorLeong, JCYen_HK
dc.date.accessioned2010-09-06T07:57:05Z-
dc.date.available2010-09-06T07:57:05Z-
dc.date.issued1995en_HK
dc.identifier.citationEuropean Spine Journal, 1995, v. 4 n. 5, p. 274-279en_HK
dc.identifier.issn0940-6719en_HK
dc.identifier.urihttp://hdl.handle.net/10722/79654-
dc.description.abstractSeventy patients with adolescent idiopathic right thoracic scoliosis had full assessment of their pulmonary function using a computerised pulmonary function system. Their mean age at evaluation was 13.8 years. The following measurements were obtained from anteroposterior and lateral standing and antero-posterior supine bending radiographs: lateral curvature, vertebral rotation, kyphosis, maximum sterno-vertebral distance and apical rib-vertebral angles. Using the above measurements, the flexibility of curve, vertebral rotation and rib-vertebral angle asymmetry were calculated. Patients were classified into three groups on the basis of their predicted vital capacity, to determine whether radiological features of deformity can help identify patients with compromised pulmonary function. The mean Cobb angle and vertebral rotation for the 70 patients were 50° (range 35-100°) and 22° (range 1-44°) respectively. The mean flexibility of curve and vertebral rotation were 52% and 49% respectively. Mean thoracic kyphosis was 25°, ranging from -7 to 55°. Of the patients with Cobb angle less than 90°, 71% had vital capacity less than 80% of predicted values, and of these, 18% had marked compromise of vital capacity (less than 60% of predicted values). Mean values of Cobb angle, vertebral rotational flexibility, kyphosis, rib-vertebral angle asymmetry (in standing as well as supine bending radiographs) differed significantly between patients with more than 80% of predicted vital capacity and those with 60% or less of predicted values. Radiological features indicative of better pulmonary function were: rotational flexibility exceeding 55%, rib-vertebral angle asymmetry (standing) less than 25° and kyphosis greater than 15°. Two deformity parameters - that give a better prediction of pulmonary function than the widely used Cobb angle, vertebral rotational flexibility and rib-vertebral angle asymmetry - were identified in this study.en_HK
dc.languageengen_HK
dc.publisherSpringer. The Journal's web site is located at http://www.springer.com/medicine/orthopedics/journal/586en_HK
dc.relation.ispartofEuropean Spine Journalen_HK
dc.subjectPrediction of lung functionen_HK
dc.subjectRib vertebral angleen_HK
dc.subjectThoracic kyphosisen_HK
dc.subjectVertebral rotational flexibilityen_HK
dc.titleEvaluation of deformities and pulmonary function in adolescent idiopathic right thoracic scoliosisen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0940-6719&volume=4&spage=274&epage=279&date=1995&atitle=Evaluation+of+deformities+and+pulmonary+function+in+adolescent+idiopathic+right+thoracic+scoliosisen_HK
dc.identifier.emailLuk, KDK:hcm21000@hku.hken_HK
dc.identifier.authorityLuk, KDK=rp00333en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/BF00301033en_HK
dc.identifier.pmid8581527-
dc.identifier.scopuseid_2-s2.0-0028856634en_HK
dc.identifier.hkuros10892en_HK
dc.identifier.volume4en_HK
dc.identifier.issue5en_HK
dc.identifier.spage274en_HK
dc.identifier.epage279en_HK
dc.publisher.placeGermanyen_HK
dc.identifier.scopusauthoridUpadhyay, SS=7102460354en_HK
dc.identifier.scopusauthoridMullaji, AB=6602491240en_HK
dc.identifier.scopusauthoridLuk, KDK=7201921573en_HK
dc.identifier.scopusauthoridLeong, JCY=35560782200en_HK

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