raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:295028

Isolated tibio-fibular synostosis

Synonyms: Isolated congenital tibiofibular fusion

Type
Morphological anomaly
Group
Disorder
Status
active

Tibio-fibular synostosis is a rare, non-syndromic limb malformation characterized by fusion of the proximal or distal tibial and fibular metaphysis and/or diaphysis, frequently associated with distal positioning of the proximal tibiofibular joint, leg length discrepancy, bowing of the fibula, and valgus deformity of the knee.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enIsolated tibio-fibular synostosisIsolated congenital tibiofibular fusion
frSynostose tibio-fibulaire isoléeFusion tibio-fibulaire congénitale isolée · Fusion tibio-péronière congénitale isolée · Synostose tibio-péronière congénitale isolée
deTibiofibulare Synostose, isolierteIsolierte angeborene tibiofibulare Fusion
esSinostosis tibioperonea aisladaFusión congénita aislada de tibia-peroné
itSinostosi tibio-fibulare isolataFusione congenita isolata tibio-fibulare
nlGeïsoleerde tibiofibulaire synostoseGeïsoleerde congenitale tibiofibulaire fusie
ptSinostose tibio-peronial isoladaFusão tibio-peronial isolada congénita
plIzolowana synostoza piszczelowo-strzałkowaZrost piszczelowo-strzałkowy
csTibiofibulární synostózaTibiofibulární fúze
ukІзольований тибіо-фібулярний синостозІзольоване вроджене зрощення великогомілкової кістки
zh胫腓骨融合胫腓骨融合
trTibio-fibular sinostozTibio-fibular füzyon

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10Q74.2NTBTattributedvalidated
ICD-11LB90.6Especificvalidated
MONDO0017467Evalidated
UMLSC5925018Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (1):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

0 records

No prevalence record in this release.

6

HPO phenotypes

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card