The Development of Leg Length Difference and Influence on Persistent Dysplasia in Patients with Developmental Dysplasia of the Hip.
Developmental dysplasia of the hip
Hip dysplasia
Leg length difference
Leg length discrepancy
Long leg dysplasia
Residual dysplasia
Journal
Indian journal of orthopaedics
ISSN: 0019-5413
Titre abrégé: Indian J Orthop
Pays: Switzerland
ID NLM: 0137736
Informations de publication
Date de publication:
Dec 2021
Dec 2021
Historique:
received:
08
07
2021
accepted:
13
08
2021
entrez:
10
1
2022
pubmed:
11
1
2022
medline:
11
1
2022
Statut:
epublish
Résumé
Leg-length difference (LLD) is common in patients with developmental dysplasia of the hip (DDH). LLD of > 1 cm at skeletal maturity is reported in > 40% of patients, with the majority related to ipsilateral overgrowth. A longer DDH leg might lead to excessive mechanical loading at the acetabular margin, resulting in compromised acetabular development. We hypothesised that the LLD would negatively influence acetabular development. If so, it would be advantageous to identify such patients early in the course of follow-up, and address this if necessary. A retrospective study was conducted on a consecutive series of DDH patients managed surgically at the Royal National Orthopaedic Hospital, Stanmore, United Kingdom. We included patients with adequate long-leg radiographs at the age of 4-8 years (early-FU) and skeletal maturity (final-FU). Bilateral cases and those who underwent surgical procedures for hip dysplasia during the follow-up period were excluded. Measurements including leg length and centre-edge-angle (CE-angle) were obtained at the 2 time points. Twenty-seven patients were included, mean age at early-FU 5.7 (± 0.9) years, and 13.9 (± 1.0) years at final-FU. Mean LLD at early-FU was 9.5 (± 7.6) mm and 10.9 (± 9.4) mm at final-FU, Most leg-length differences can be identified early in the follow-up period, nevertheless, considerable individual changes in LLD are observed on continued follow-up. Furthermore, a trend was observed towards impaired acetabular improvement in patients with more LLD. These findings justify careful clinical and radiological monitoring of LLD from an early stage in the follow-up period. The online version contains supplementary material available at 10.1007/s43465-021-00492-5.
Identifiants
pubmed: 35003543
doi: 10.1007/s43465-021-00492-5
pii: 492
pmc: PMC8688656
doi:
Types de publication
Journal Article
Langues
eng
Pagination
1568-1575Informations de copyright
© Crown 2021.
Déclaration de conflit d'intérêts
Conflict of interestThe authors declare that they have no conflict of interest.
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