raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:2110

Hallux varus-preaxial polysyndactyly syndrome

historical

Synonyms: Kleiner-Holmes syndrome

Type
Malformation syndrome
Group
Disorder
Age of onset
Neonatal
Status
historical

Hallux varus-preaxial polysyndactyly syndrome is a rare, genetic, congenital limb malformation disorder characterized by bilateral medial displacement of the hallux and preaxial polysyndactyly of the first toes. Radiographs show broad, shortened, misshapen first metatarsals and may associate incomplete or complete duplication of proximal phalanges and duplication or triplication of distal phalanges. There have been no further descriptions in the literature since 1980.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enHallux varus-preaxial polysyndactyly syndromeKleiner-Holmes syndrome
frSyndrome d'hallux varus-polysyndactylie préaxialeSyndrome de Kleiner-Holmes
deHallux varus mit präaxialer PolysyndaktylieKleiner-Holmes-Syndrom
esSíndrome de hallux varus-polisindactilia preaxialSíndrome de Kleiner-Holmes
itSindrome da alluce varo e polisindattilia preassialeSindrome di Kleiner Holmes
nlHallux varus - preaxiale polysyndactylie-syndroomSyndroom van Kleiner-Holmes
ptSíndrome de hallux varus-polissindactilia pré-axialSíndrome Kleiner-Holmes
plPaluch koślawy - polisyndaktylia przedosiowaZespół Kleinera i Holmesa
csSyndrom zahrnující hallux varus a preaxiální polysyndaktyliiKleinerův-Holmesův syndrom · Kleiner-Holmesův syndrom
ukСиндром Hallux varus-преаксіальної полісиндактиліїСиндром Клейнера-Холмса
zh拇内翻-轴前多指(趾)综合征Kleiner-Holmes综合征
trHalluks varus-preaksiyal polisindaktili sendromKleiner-Holmes sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM234280Evalidated
ICD-10Q74.2NTBTattributedvalidated
MONDO0009321Evalidated
MeSHC536885Evalidated
UMLSC1856197Evalidated
GARD3118Evalidated

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

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families2 casesWorldwideCase(s)Validated6255798[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_6255798[PMID]

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

2 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0001852Sandal gap
Frequent (79-30%)
HP:0004209Clinodactyly of the 5th finger
7

Sources for this card