Erratum to: Sex Differences in Cartilage Topography and Orientation of the Developing Acetabulum: Implications for Hip Preservation Surgery

Peterson, Jonathan B.; Doan, Josh; Bomar, James D.; Wenger, Dennis R.; Pennock, Andrew T.; Upasani, Vidyadhar V.

doi:10.1007/s11999-015-4372-0

Cited by 1 publication

(2 citation statements)

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“…However, multiple studies have demonstrated problems with the reliability of the LCEA angle as a single measure of dysplasia [ 20 – 22 ]. In particular, there has been an increased appreciation of the 3-dimensional complexity of the acetabulum, with the recognition that a single measure of coverage cannot adequately describe the precise acetabular morphology of a dysplastic hip [ 19 ].…”

Section: Discussionmentioning

confidence: 99%

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3D Characterization of Acetabular Deficiency in Children with Developmental Dysplasia of the Hip

Badrinath

Jeffords

Bomar

et al. 2021

JOIO

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Background The purpose of this study is to determine if a quantitative method can be used to identify differences in 3D morphology between normal and developmentally dysplastic hips and to identify specific areas of undercoverage in children with DDH compared to age- and sex-matched controls. Methods Subjects were included if they were typically developing children with no other underlying conditions affecting their musculoskeletal system and had an available pelvic CT scan (67 hips). Custom software was used to measure standard variables defining acetabular morphology (version, tilt, surface area). Acetabuli were divided into equal octants; coverage angles were measured for each octant of interest. Variables were compared with age- and sex-matched controls (128 hips) using analysis of variance or the Mann–Whitney test. Results Hips with DDH were more anteverted compared to normal hips (DDH: 22.6˚, Control: 16.4˚, p < 0.001). The surface area was similar between groups. 28% of hips had a global deficiency, 24% were anteriorly deficient, 19% were laterally deficient, 10% were anteverted (under covered anteriorly and over covered posteriorly), 3% were posteriorly deficient, and 15% of hips had borderline undercoverage. None of the hips in this cohort were found to be retroverted. Conclusions This is the first study to quantify the 3D acetabular deficiency in children with DDH compared to age- and sex-matched controls. We found wide variability in coverage patterns among dysplastic hips. It is imperative to define the specific acetabular deficiency for each individual patient prior to surgical correction. Level of evidence III – Case–control study.

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Section: Discussionmentioning

confidence: 99%

“…Previously published control values generated with this identical technique were utilized [ 19 ]. These control values were obtained from CT pelvis scans obtained in the emergency department (ED) for non-orthopedic conditions as part of the ED’s standard workup protocol.…”

Section: Methodsmentioning

confidence: 99%