Evidence map›Paper›PMID 40810859›Full record

ArticleJournal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology2025

High prevalence of borderline hip dysplasia in young patients with femoral head subchondral stress fractures.

Zhendong Zhang, Haigang Jia, Ningtao Ren, Hui Cheng, Dianzhong Luo, Yong Li, Wei Sun, Jun Fu, Hong Zhang

Abstract read
In one paragraph

Article in Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Zhendong Zhang *Senior department of orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, 51 Fucheng Road, Beijing, China.
Haigang Jia *Senior department of orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, 51 Fucheng Road, Beijing, China.
Ningtao RenSenior department of orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, 51 Fucheng Road, Beijing, China.
Hui ChengSenior department of orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, 51 Fucheng Road, Beijing, China.
Dianzhong LuoSenior department of orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, 51 Fucheng Road, Beijing, China.
Yong LiSenior department of orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, 51 Fucheng Road, Beijing, China.
Wei SunSenior department of orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, 51 Fucheng Road, Beijing, China.
Jun FuSenior department of orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, 51 Fucheng Road, Beijing, China.
Hong ZhangSenior department of orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, 51 Fucheng Road, Beijing, China. zhanghongmd@163.com.ORCID http://orcid.org/0000-0002-9201-6274

Funding

Beijing Natural Science Foundation L242137National Key R&D Program of China 2023YFB4705600
6 · The paper itself

Abstract

backgroundLimited research exists on young patients with femoral head subchondral stress fractures (SSF), especially regarding how hip anatomy may contribute to this condition. Few studies have explored the potential correlation between its pathogenesis and developmental dysplasia of the hip (DDH). We aimed to determine hip morphology in patients with femoral head SSF and analyze the distribution of various parameters reflecting hip coverage and stability. MATERIALS AND

methodsRadiographic data of all patients with femoral head SSF who met the inclusion criteria between January 2019 and November 2023 were retrospectively reviewed. These data included the lateral center-edge angle (LCEA), Tönnis angle, anterior center-edge angle (ACEA), femoral head extrusion index, acetabular arc, femoral head lateralization, upsloping lateral sourcil, cliff sign, crossover sign, posterior wall sign, and ischial spine sign. We determined the proportion of borderline DDH (BDDH) and the distribution of each parameter on the affected side. Additionally, we compared differences between patients with LCEA < 25° and LCEA > 25°.

resultsIn affected hips, 15 cases (57.7%) had BDDH, 3 cases (11.5%) had DDH, and only 8 cases (30.8%) had a normal LCEA. On the contralateral side, 8 cases (30.8%) had BDDH, 4 cases (15.4%) had DDH, and 14 cases (53.8%) had normal LCEA. Abnormalities were prominent in the extrusion index (50.0%), acetabular arc (65.4%), femoral head lateralization (46.2%), cliff sign (42.3%), and posterior wall sign (65.4%). Among patients with affected-side LCEA < 25°, more than 50% exhibited abnormalities in ACEA, extrusion index, acetabular arc, cliff sign, or posterior wall sign. Among patients with normal LCEA on the affected side, most had acetabular retroversion, with 75.0% showing a positive crossover sign and 75.0% showing a positive ischial spine sign.

conclusionsThis study revealed a notably high prevalence of BDDH in young patients with femoral head SSF. The various abnormalities observed in parameters reflecting coverage and stability in BDDH may explain the potential association between BDDH and femoral head SSF. LEVEL OF EVIDENCE IV: Retrospective case series.

Indexed as

Developmental Dysplasia of the HipFemur HeadFractures, StressAdolescentAdultFemaleHumansMalePrevalenceRadiographyRetrospective StudiesYoung AdultBorderline developmental dysplasia of the hipFemoral headRadiographic analysisSubchondral stress fractures

Identifiers

PMID40810859
PMCPMC12354419

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.