The variation in hip stability measurements between supine and standing radiographs of dysplastic hips

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dc.contributor.authorBhanushali, A.
dc.contributor.authorChimutengwende-Gordon, N.
dc.contributor.authorBeck, M.
dc.contributor.authorCallary, S.A.
dc.contributor.authorCosti, K.
dc.contributor.authorHowie, D.W.
dc.contributor.authorSolomon, L.B.
dc.date.issued2021
dc.description.abstractAIMS: The aims of this study were to compare clinically relevant measurements of hip dysplasia on radiographs taken in the supine and standing position, and to compare Hip2Norm software and Picture Archiving and Communication System (PACS)-derived digital radiological measurements. METHODS: Preoperative supine and standing radiographs of 36 consecutive patients (43 hips) who underwent periacetabular osteotomy surgery were retrospectively analyzed from a single-centre, two-surgeon cohort. Anterior coverage (AC), posterior coverage (PC), lateral centre-edge angle (LCEA), acetabular inclination (AI), sharp angle (SA), pelvic tilt (PT), retroversion index (RI), femoroepiphyseal acetabular roof (FEAR) index, femoroepiphyseal horizontal angle (FEHA), leg length discrepancy (LLD), and pelvic obliquity (PO) were analyzed using both Hip2Norm software and PACS-derived measurements where applicable. RESULTS: Analysis of supine and standing radiographs resulted in significant variation for measurements of PT (p < 0.001) and AC (p = 0.005). The variation in PT correlated with the variation in AC in a limited number of patients (R2 = 0.378; p = 0.012). CONCLUSION: The significant variation in PT and AC between supine and standing radiographs suggests that it may benefit surgeons to have both radiographs when planning surgical correction of hip dysplasia. We also recommend using PACS-derived measurements of AI and SA due to the poor interobserver error on Hip2Norm.
dc.description.statementofresponsibilityAmeya Bhanushali, Mukai Chimutengwende-Gordon, Martin Beck, Stuart Adam Callary, Kerry Costi, Donald W. Howie, Lucian Bogdan Solomon
dc.identifier.citationThe Bone & Joint Journal, 2021; 103-B(11):1662-1668
dc.identifier.doi10.1302/0301-620X.103B11.BJJ-2020-2519.R2
dc.identifier.issn2049-4394
dc.identifier.issn2049-4408
dc.identifier.orcidBhanushali, A. [0000-0002-9301-0405]
dc.identifier.orcidCallary, S.A. [0000-0002-2892-5238]
dc.identifier.orcidHowie, D.W. [0000-0003-1702-3279]
dc.identifier.orcidSolomon, L.B. [0000-0001-6254-2372]
dc.identifier.urihttps://hdl.handle.net/2440/135262
dc.language.isoen
dc.publisherBritish Editorial Society of Bone and Joint Surgery
dc.rights© 2021 The British Editorial Society of Bone & Joint Surgery
dc.source.urihttps://doi.org/10.1302/0301-620x.103b11.bjj-2020-2519.r2
dc.subjectDevelopmental dysplasia of the hip
dc.subjectperiacetabular osteotomy
dc.subjectStanding vs supine
dc.subjectHip dysplasia
dc.subjectHip2Norm
dc.subjectWeightbearing
dc.subjectRadiographs
dc.subjecthips
dc.subjectDevelopmental dysplasia of the hip (DDH)
dc.subjectlateral centre-edge angle (LCEA)
dc.subjectpelvic tilt
dc.subjectleg length discrepancy
dc.subjectpelvic obliquity
dc.subjectacetabular roof
dc.subjectfemoral heads
dc.subject.meshHumans
dc.subject.meshHip Dislocation
dc.subject.meshRadiography
dc.subject.meshRetrospective Studies
dc.subject.meshSupine Position
dc.subject.meshAdolescent
dc.subject.meshAdult
dc.subject.meshMiddle Aged
dc.subject.meshFemale
dc.subject.meshMale
dc.subject.meshYoung Adult
dc.subject.meshStanding Position
dc.titleThe variation in hip stability measurements between supine and standing radiographs of dysplastic hips
dc.typeJournal article
pubs.publication-statusPublished

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