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Conference Paper: A practical classification of the distal radius and ulna radiograph for assessing skeletal maturity

TitleA practical classification of the distal radius and ulna radiograph for assessing skeletal maturity
Authors
Issue Date2009
Citation
The 6th SICOT/SIROT Annual International Conference, combined meeting with the Royal College of Orthopaedic Surgeons of Thailand (RCOST), Pattaya, Thailand, 29 October-1 November 2009. How to Cite?
AbstractAccurate prediction of the pubertal growth spurt is critical to the management of adolescent idiopathic scoliosis (AIS). Menarche onset and Risser sign could not demonstrate peak growth accurately. The authors have noted that morphological changes in the distal radius and ulna parallel peak growth and the cessation of growth. This study aims to substantiate these observations by correlation with growth parameters. METHOD: Using a cohort of 145 females followed from age 10 to maturity with growth measurements and yearly hand radiographs, morphological changes in the distal radius were classified into 11 stages (R1-11) and ulna into 9 (U1-9). The radius and ulna classifications were correlated with bone age, standing height, sitting height and arm span. RESULTS: Peak growth velocity, significantly correlated with the stage R7, when the medial side of radial epiphysis form a cap covering the radial metaphysis, and U5, when distal ulna epiphysis has taken the shape of ulna head. These were equivalent to a chronologic age of 11.4 years +/- one year. Growth was complete at R10, when the junction of the radial epiphysis and metaphysis became a single sclerotic line. This was equivalent to a chronologic age of 15.6 +/- 1.3 years. DISCUSSION: The stages of R7, R10 and U5 are easily identifiable stages in the distal radius and ulna. They are easier to use than full bone age measurements, and can predict both peak growth and cessation of growth. These are simple and useful tools for spinal surgeons managing AIS.
DescriptionPoster Presentations: Session: Paediatrics - Spine. Abstract no. 21897 - http://www.sicot.org/resources/File/Pattaya/abstract%20cdrom_posters.pdf
Persistent Identifierhttp://hdl.handle.net/10722/126569

 

DC FieldValueLanguage
dc.contributor.authorSaw, LBen_HK
dc.contributor.authorCheung, KMCen_HK
dc.contributor.authorGrozman, Sen_HK
dc.contributor.authorLuk, KDKen_HK
dc.date.accessioned2010-10-31T12:36:06Z-
dc.date.available2010-10-31T12:36:06Z-
dc.date.issued2009en_HK
dc.identifier.citationThe 6th SICOT/SIROT Annual International Conference, combined meeting with the Royal College of Orthopaedic Surgeons of Thailand (RCOST), Pattaya, Thailand, 29 October-1 November 2009.en_HK
dc.identifier.urihttp://hdl.handle.net/10722/126569-
dc.descriptionPoster Presentations: Session: Paediatrics - Spine. Abstract no. 21897 - http://www.sicot.org/resources/File/Pattaya/abstract%20cdrom_posters.pdf-
dc.description.abstractAccurate prediction of the pubertal growth spurt is critical to the management of adolescent idiopathic scoliosis (AIS). Menarche onset and Risser sign could not demonstrate peak growth accurately. The authors have noted that morphological changes in the distal radius and ulna parallel peak growth and the cessation of growth. This study aims to substantiate these observations by correlation with growth parameters. METHOD: Using a cohort of 145 females followed from age 10 to maturity with growth measurements and yearly hand radiographs, morphological changes in the distal radius were classified into 11 stages (R1-11) and ulna into 9 (U1-9). The radius and ulna classifications were correlated with bone age, standing height, sitting height and arm span. RESULTS: Peak growth velocity, significantly correlated with the stage R7, when the medial side of radial epiphysis form a cap covering the radial metaphysis, and U5, when distal ulna epiphysis has taken the shape of ulna head. These were equivalent to a chronologic age of 11.4 years +/- one year. Growth was complete at R10, when the junction of the radial epiphysis and metaphysis became a single sclerotic line. This was equivalent to a chronologic age of 15.6 +/- 1.3 years. DISCUSSION: The stages of R7, R10 and U5 are easily identifiable stages in the distal radius and ulna. They are easier to use than full bone age measurements, and can predict both peak growth and cessation of growth. These are simple and useful tools for spinal surgeons managing AIS.-
dc.languageengen_HK
dc.relation.ispartofCombined SICOT/RCOST Annual Meeting-
dc.titleA practical classification of the distal radius and ulna radiograph for assessing skeletal maturityen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailSaw, LB: saw_lb@yahoo.comen_HK
dc.identifier.emailCheung, KMC: cheungmc@hku.hken_HK
dc.identifier.emailGrozman, S: grozmanmd@yahoo.comen_HK
dc.identifier.emailLuk, KDK: hrmoldk@hkucc.hku.hken_HK
dc.identifier.authorityCheung, KMC=rp00387en_HK
dc.identifier.authorityLuk, KDK=rp00333en_HK
dc.identifier.hkuros180238en_HK
dc.description.otherThe 6th SICOT/SIROT Annual International Conference, combined meeting with the Royal College of Orthopaedic Surgeons of Thailand (RCOST), Pattaya, Thailand, 29 October-1 November 2009.-

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