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https://hdl.handle.net/2440/135262
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Type: | Journal article |
Title: | The variation in hip stability measurements between supine and standing radiographs of dysplastic hips |
Author: | Bhanushali, A. Chimutengwende-Gordon, N. Beck, M. Callary, S.A. Costi, K. Howie, D.W. Solomon, L.B. |
Citation: | Bone and Joint Journal, 2021; 103-B(11):1662-1668 |
Publisher: | British Editorial Society of Bone and Joint Surgery |
Issue Date: | 2021 |
ISSN: | 2049-4394 2049-4408 |
Statement of Responsibility: | Ameya Bhanushali, Mukai Chimutengwende-Gordon, Martin Beck, Stuart Adam Callary, Kerry Costi, Donald W. Howie, Lucian Bogdan Solomon |
Abstract: | AIMS: 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. |
Keywords: | Developmental dysplasia of the hip periacetabular osteotomy Standing vs supine Hip dysplasia Hip2Norm Weightbearing Radiographs hips Developmental dysplasia of the hip (DDH) lateral centre-edge angle (LCEA) pelvic tilt leg length discrepancy pelvic obliquity acetabular roof femoral heads |
Rights: | © 2021 The British Editorial Society of Bone & Joint Surgery |
DOI: | 10.1302/0301-620X.103B11.BJJ-2020-2519.R2 |
Published version: | http://dx.doi.org/10.1302/0301-620x.103b11.bjj-2020-2519.r2 |
Appears in Collections: | Orthopaedics and Trauma publications |
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