Preferred Label : Developmental dysplasia of the hip 1;
Symbol : DDH1;
CISMeF acronym : CDH; DDH; DDH1;
Type : Phenotype or locus, molecular basis unknown;
Alternative titles and symbols : Acetabular dysplasia; Hip dysplasia, congenital; DDH; Hip dysplasia, developmental; CDH;
Description : Congenital dysplasia of the hip (CDH) is an abnormality of the seating of the femoral
head in the acetabulum. Its severity ranges from mild instability of the femoral head
with slight capsular laxity, through moderate lateral displacement of the femoral
head, without loss of contact of the head with the acetabulum, up to complete dislocation
of the femoral head from the acetabulum. It is one of the most common skeletal congenital
anomalies (summary by Sollazzo et al., 2000). Acetabular dysplasia is an idiopathic,
localized developmental dysplasia of the hip that is characterized by a shallow hip
socket and decreased coverage of the femoral head. Its radiologic criteria include
the center-edge angle of Wiberg, the Sharp angle, and the acetabular roof obliquity.
Most patients with acetabular dysplasia develop osteoarthritis (165720) after midlife,
and even mild acetabular dysplasia can cause hip osteoarthritis (summary by Mabuchi
et al., 2006). CDH occurs as an isolated anomaly or with more general disorders represented
by several syndromes and with chromosomal abnormalities such as trisomy 18 (Wynne-Davies,
1970). - Genetic Heterogeneity of Developmental Dysplasia of the Hip One form of developmental
dysplasia of the hip (DDH1) maps to chromosome 13q22; DDH2 (615612) maps to chromosome
3p21; and Beukes familial hip dysplasia (142669) maps to chromosome 4q35 (Cilliers
and Beighton, 1990).;
Inheritance : Multifactorial;
Prefixed ID : %142700;
Origin ID : 142700;
UMLS CUI : C1306065;
Automatic exact mappings (from CISMeF team)
HPO term(s)
See also inter- (CISMeF)
Semantic type(s)
Validated automatic mappings to NTBT