Evidence map›Paper›PMID 42650381›Full record

ArticleChildren (Basel, Switzerland)2026

Phenotypic Spectrum and Limb-Length Discrepancy in Congenital Lower Limb Deficiencies: A Tertiary Care Center Experience.

Fahad Alshayhan, Mishari Alanezi, Abdullah Addar, Abdulaziz S AlNahari, Fahad Alhuzaimi, Waleed Albishi

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Article in Children (Basel, Switzerland), 2026. 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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5 · Who and what money

Authors and funding

6 authors.

Fahad AlshayhanDepartment of Orthopedic Surgery, College of Medicine, King Saud University, Riyadh 11362, Saudi Arabia.ORCID 0000-0003-1217-4510
Mishari AlaneziCollege of Medicine, King Saud University, Riyadh 11362, Saudi Arabia.ORCID 0009-0006-8804-3743
Abdullah AddarDepartment of Orthopedic Surgery, College of Medicine, King Saud University, Riyadh 11362, Saudi Arabia.
Abdulaziz S AlNahariCollege of Medicine, King Saud University, Riyadh 11362, Saudi Arabia.ORCID 0009-0008-4861-733X
Fahad AlhuzaimiDepartment of Orthopedic Surgery, College of Medicine, King Saud University, Riyadh 11362, Saudi Arabia.
Waleed AlbishiDepartment of Orthopedic Surgery, College of Medicine, King Saud University, Riyadh 11362, Saudi Arabia.

Funding

King Saud University (ORFFT-2026-1774)
6 · The paper itself

Abstract

BACKGROUND/

objectivesCongenital lower-limb deficiencies, including proximal femoral focal deficiency (PFFD), fibular hemimelia (FH), and tibial hemimelia (TH), are rare, phenotypically heterogeneous disorders with important implications for reconstructive planning. However, phenotypic data remain limited. This study aimed to characterize the clinical and radiological spectrum of these deficiencies and evaluate associated anomalies and limb-length discrepancy (LLD) across diagnostic groups. MATERIALS AND

methodsA retrospective cohort study included all patients diagnosed with PFFD, FH, or TH at a tertiary referral center between January 2021 and December 2025. Demographic, clinical, and radiographic data were extracted from electronic medical records. Patients were classified using established systems, and associated anomalies, distal morphology, laterality, and LLD were evaluated. Descriptive statistics and exploratory non-parametric comparisons across diagnostic groups were performed.

resultsA total of 143 patients were included: 91 (63.6%) with PFFD, 23 (16.1%) with FH, 10 (7.0%) with TH, 18 (12.6%) with combined PFFD + FH, and 1 (0.7%) with combined PFFD + TH. Isolated PFFD was predominantly unilateral and clustered within the milder spectrum, most commonly Paley type 1a and Aitken type A. In contrast, FH was dominated by the severe Paley type 3b phenotype, whereas TH showed marked classification heterogeneity. Upper-limb anomalies were more common in FH and TH than in isolated PFFD. LLD differed significantly among diagnostic groups (

conclusionsCongenital lower-limb deficiencies are highly heterogeneous, with combined deficiencies exhibiting greater LLD and anomaly burden. These findings provide structured regional data to support classification and reconstructive planning.

Indexed as

deformitieshemimelialimb-length discrepancylower-limb deficiencypediatrics

Identifiers

PMID42650381
PMCPMC13511017

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