Pubofemoral distances correlate to acetabular morphology and sonological instability in screening for hip dysplasia.
Journal
Bone & joint open
ISSN: 2633-1462
Titre abrégé: Bone Jt Open
Pays: England
ID NLM: 101770336
Informations de publication
Date de publication:
02 Jan 2024
02 Jan 2024
Historique:
medline:
2
1
2024
pubmed:
2
1
2024
entrez:
2
1
2024
Statut:
epublish
Résumé
The present study seeks to investigate the correlation of pubofemoral distances (PFD) to α angles, and hip displaceability status, defined as femoral head coverage (FHC) or FHC during manual provocation of the newborn hip < 50%. We retrospectively included all newborns referred for ultrasound screening at our institution based on primary risk factor, clinical, and PFD screening. α angles, PFD, FHC, and FHC at follow-up ultrasound for referred newborns were measured and compared using scatter plots, linear regression, paired We included 2,735 newborns, of whom 754 received a follow-up hip ultrasound within six weeks of age. After exclusion, 1,500 hips were included for analysis. Sex distribution was 372 male and 380 female, and the mean age at examination was 36.6 days (4 to 87). We found a negative linear correlation of PFD to α angles (p < 0.001), FHC (p < 0.001), and FHC during provocation (p < 0.001) with a 1 mm increase in PFD corresponding to a -2.1° (95% confidence interval (CI) -2.3 to -1.9) change in α angle and a -3.4% (95% CI -3.7 to -3.0) change in FHC and a -6.0% (-6.6 to -5.5) change in FHC during provocation. The PFD was significantly higher with increasing Graf types and in displaceable hips (p < 0.001). PFD is strongly correlated to both α angles and hip displaceability, as measured by FHC and FHC during provocation, in ultrasound of newborn hips. The PFD increases as the hips become more dysplastic and/or displaceable.
Identifiants
pubmed: 38164740
doi: 10.1302/2633-1462.51.BJO-2023-0134
pii: BJO-2023-0134
doi:
Types de publication
Journal Article
Langues
eng
Pagination
3-8Informations de copyright
© 2024 Husum et al.
Déclaration de conflit d'intérêts
R. D. Maimburg is the programme leader for the PhD school at Aarhus University.
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