A comparison of three methods for measuring patella malalignment in children

This study compared the Insall-Salvati (IS), Blackburne-Peel (BP), and Koshino-Sugimoto (KS) methods for measuring patellar malalignment in children. The IS and BP methods were inaccurate because the traditional landmarks for measurement were absent in the incompletely ossified pediatric knee. The K...

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Bibliographic Details
Published inJournal of pediatric orthopaedics. B Vol. 7; no. 4; p. 303
Main Authors Shin, A Y, Loncarich, D P, Hennrikus, W L, Case, S R
Format Journal Article
LanguageEnglish
Published United States 01.10.1998
Subjects
Adolescent
Age Factors
Analysis of Variance
Anthropometry - methods
Bone Malalignment - diagnostic imaging
Bone Malalignment - pathology
Bone Malalignment - physiopathology
Child
Child, Preschool
Female
Humans
Male
Observer Variation
Patella
Patellar Ligament - physiopathology
Radiography
Range of Motion, Articular
Reproducibility of Results
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Summary:This study compared the Insall-Salvati (IS), Blackburne-Peel (BP), and Koshino-Sugimoto (KS) methods for measuring patellar malalignment in children. The IS and BP methods were inaccurate because the traditional landmarks for measurement were absent in the incompletely ossified pediatric knee. The KS method is based on the midpoint of the patella, the distal femoral physis, and the proximal tibial physis. The KS method applied to the extended knee was also inaccurate because of laxity in the patella ligament. However, the KS method applied to the flexed knee was the most accurate method for measuring patella malalignment in children.
ISSN:1060-152X
DOI:10.1097/01202412-199810000-00009