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A muscle tissue disease characterized by congenital joint contractures of hand and feet.
No HPO annotations are available for this condition.
Age of onset: at birth, newborn period, infancy.
Congenital contractural arachnodactyly (CCA) appears to comprise a broad phenotypic spectrum. Phenotypic expression is variable within and between families. At the mildest end, parents who are diagnosed retrospectively upon evaluation of their more severely affected child may show a lean body build, mild arachnodactyly, prominent anterior crus of the antihelix, and/or mild contractures without impairment. At the most severe end is "severe CCA with cardiovascular and/or gastrointestinal anomalies," a rare phenotype in infants with pronounced features of CCA (severe crumpling of the ears, arachnodactyly, contractures, congenital scoliosis, and/or hypotonia) and severe cardiovascular and/or gastrointestinal anomalies.
Formal diagnostic criteria for congenital contractural arachnodactyly (CCA) have not been established.
Classic CCA should be suspected in individuals with the following:
Arachnodactyly with positive wrist and thumb sign
Flexion contractures of multiple joints including elbows, knees, hips, ankles, and/or fingers
No approved treatments are currently available for distal arthrogryposis. The disease remains an area of unmet medical need.
Evaluations Following Initial Diagnosis To establish the extent of disease in an individual diagnosed with congenital contractural arachnodactyly (CCA), the evaluations summarized (if not performed as part of the evaluation that led to the diagnosis) are recommended. Table 5. Recommended Evaluations Following Initial Diagnosis in Individuals with Classic Congenital Contractural Arachnodactyly
Table 9. Recommended Surveillance for Individuals with Classic Congenital Contractural Arachnodactyly
System/Concern |
|---|
No clinical trials have been registered for distal arthrogryposis.
48 publications have been identified in PubMed for distal arthrogryposis. Research spans Case Report / Case Series (40%), Review / Meta-Analysis (13%), and Basic Science / Preclinical (13%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 19 | 40% |
Data assembled from 4 of 12 sources · Last updated Sep 20, 2026, 11:11 AM UTC
European rare disease database
Genetic and Rare Diseases Info Center
Source: GeneReviews — "Congenital Contractural Arachnodactyly"
Kyphoscoliosis (usually progressive)
Abnormal pinnae ("crumpled" outer helices)
A marfanoid habitus (a long and slender build, dolichostenomelia, pectus deformity, muscular hypoplasia, highly arched palate)
On rare occasions, infants were reported with the clinical findings of classic CCA as well as the following anomalies [, , , , ]:
Source: GeneReviews — "Congenital Contractural Arachnodactyly"
Disorders with features that overlap with those of congenital contractural arachnodactyly (CCA) are summarized in . Table 4. Disorders to Consider in the Differential Diagnosis of Congenital Contractural Arachnodactyly (CCA)
DifferentialDiagnosisDisorder | Gene | MOI | Clinical Features of Differential Diagnosis Disorder |
|---|---|---|---|
FBN1 | AD | Marfanoid habitus, dolichostenomelia; Arachnodactyly; Pectus deformity, kyphoscoliosis; Muscle hypoplasia; Severe Marfan syndrome1 may be mistaken for severe CCA as both may have crumpled ears, contractures, cardiovascular abnormalities.2 | Lens (sub)luxation; High myopia; Progressive aortic root dilatation; Neonates w/severe Marfan syndrome are usually very hypotonic have valvular anomalies ("floppy valves") /or aortic root dilatation, rather than the septal defects or interrupted aortic arch in severe CCA. |
TGFBR2 | AD | Arachnodactyly; Pectus deformity | Joint laxity; Thin skin; Hypertelorism, bifid uvula, cleft palate; Pectus deformity, scoliosis; (Progressive) aortic root dilatation – patent ductus arteriosus Stickler syndrome |
COL11A2 | ADAR4 | Marfanoid body habitus (in some affected individuals), but usually secondary to a shortened trunk, rather than long-bone overgrowth | Joint laxity; Early-onset rapidly progressive myopia w/ risk of cataract, retinal detachment; Hearing loss (both conductive sensorineural); Midfacial underdevelopment cleft palate; Mild spondyloepiphyseal dysplasia /or precocious arthritis Homocystinuria |
CBS | AR | Limited joint mobility; Dolichostenomelia; Arachnodactyly; Kyphoscoliosis | Lens (sub)luxation; Osteoporosis; DD in some; Predisposition to thromboembolism Distal arthrogryposes(DA) (OMIM PS108120) |
TPM2 | ADAR5 | Medially overlapping fingers; Clenched fists; Ulnar deviation of fingers; Camptodactyly; Positional foot deformities; Clubfoot; Scoliosis | Absence of marfanoid habitus, arachnodactyly, contractures of knees elbows, crumpled ears; Additional features depending on DA subtype; Often pursed lips Bethlem myopathy (See Collagen Type VI-Related Disorders OMIM 616471.) |
COL12A1 | ADAR | Joint contractures; Muscular hypoplasia | Absence of marfanoid habitus, arachnodactyly, crumpled ears Van den Ende - Gupta syndrome (OMIM 600920) |
SCARF2 | AR | Contractures; Arachnodactyly; Pectus excavatum; Femoral bowing | ... |
Source: GeneReviews — "Congenital Contractural Arachnodactyly"
Biomarker and diagnostic research for distal arthrogryposis has been reported in the published literature.
System/Concern | Evaluation | Comment |
|---|---|---|
Musculoskeletal | Orthopedics: joint contractures, bowed long bones; kyphoscoliosis | Kyphoscoliosis may be congenital, is progressive, warrants early eval. Assessment by physiatrist, OT/PT of fine motor gross motor skills related to contractures muscular hypotonia |
Cardiovascular | Assessment for aortic root dilatation | The risk for aortic root dilatation is low progression uncommon; but assessing aortic root dilatation at an early stage is important for determining frequency of further cardiovascular follow up. |
Ophthalmologic | Flat cornea / keratoconus | Low risk |
Orthodontic | Highly arched palate, dental crowding | A highly arched palate is also assoc w/ incidence of middle ear infections. Miscellaneous/ |
Other | Consultation w/clinical geneticist /or genetic counselor | OT = occupational therapy; PT = physical therapy Table 6. |
Recommended Evaluations Following Initial Diagnosis in Infants with Severe Congenital Contractural Arachnodactyly System/Concern | Evaluation | Comment |
Constitutional | Assess nutritional status, growth. | — |
Musculoskeletal | Orthopedics: joint contractures, bowed long bones; kyphoscoliosis | Kyphoscoliosis is congenital, progressive, warrants early eval. Assessment by physiatrist, OT/PT of fine motor gross motor skills related to contractures muscular hypotonia |
Cardiovascular | Assess for congenital heart disease. | Commonly atrial or ventricular septal defect, interrupted aortic arch; rarely aortic root dilatation. Valvular insufficiency may occur. Gastrointestinal/ |
Feeding | Assess for GI malformation: a "double bubble" sign on abdominal ultrasound is indicative of a duodenal atresia/obstruction. | Duodenal or esophageal atresia intestinal malrotation |
Respiratory | Assess for respiratory insufficiency. | Most common cause of death, often resulting from tracheomalacia (due to pressure from vascular anomalies) respiratory infections. It is unclear if hypotonia, emphysema, /or left-sided congestive heart failure may contribute to the respiratory problems. |
Ophthalmologic | Flat cornea / keratoconus | Low risk Miscellaneous/ |
Other | Consultation w/clinical geneticist /or genetic counselor | OT = occupational therapy; PT = physical therapy Treatment of Manifestations Table 7. |
Treatment of Manifestations in Individuals with Classic Congenital Contractural Arachnodactyly Manifestation/Concern | Treatment | Considerations/Other |
Musculoskeletal | By orthopedist | Contractures may require surgical release.; Clubfeet may require casting. By physiatrist, OT/PT |
Cardiovascular | By cardiologist/cardiovascular surgeon | Aortic root dilatation is managed in a standard manner. See Marfan Syndrome (full text). |
Ophthalmologic | By ophthalmologist | Correction of refractive errors; Keratoconus can be treated by scleral contact lenses. It is currently unknown if corneal crosslinking is safe /or useful in CCA. |
Orthodontic | By orthodontist/dentist | Use of palatal expander may be indicated.; Dental crowding may necessitate extraction of molars. OT = occupational therapy; PT = physical therapy Table 8. |
Source: GeneReviews — "Congenital Contractural Arachnodactyly"
Avoid contact sports and activities that stress joints. Individuals should remain active but avoid high-intensity aerobic activities. LASIK eye surgery may increase the risk for keratoconus in individuals with predisposing ocular conditions.
Source: GeneReviews — "Congenital Contractural Arachnodactyly"
Search ClinicalTrials.gov in the US and EU Clinical Trials Register in Europe for access to information on clinical studies for a wide range of diseases and conditions. Note: There may not be clinical trials for this disorder.
Source: GeneReviews — "Congenital Contractural Arachnodactyly"
View trials for distal arthrogryposis
Evaluation
Frequency |
|---|
Musculoskeletal | If not present at initial eval: evaluate for kyphosis/scoliosis clinically. | At least annually If present at initial eval: monitor kyphosis/scoliosis (clinically /or radiologically). |
Cardiovascular | Measurement of aortic root diameter for evidence of aortic dilatation | Every 2 yrs until end of puberty; then every 3-5 yrs if aortic measurements are well below upper limit for age, sex, body surface area (z-score 2) no major valvular involvement (mitral valve prolapse) |
Ocular | Visual acuity assessment of refractive error | Upon clinical guidance (or at least every 2 yrs in young children) Keratometry |
Orthodontic | From age 8 yrs | Annually |
Source: GeneReviews — "Congenital Contractural Arachnodactyly"
6 |
13% |
Laboratory research | 6 | 13% |
Clinical study results | 5 | 10% |
Disease patterns and progression | 5 | 10% |
New treatment approaches | 4 | 8% |
Testing and diagnosis research | 3 | 6% |
Diodato D (2026). [PMID: 41780226](https://pubmed.ncbi.nlm.nih.gov/41780226/). *European journal of paediatric neurology : EJPN : official journal of the European Paediatric Neurology Society*. [Case Report / Case Series]
Adekeye TE (2026). [PMID: 42243126](https://pubmed.ncbi.nlm.nih.gov/42243126/). *Nat Commun*. [Basic Science / Preclinical]
Zgheib O (2026). [PMID: 41562327](https://pubmed.ncbi.nlm.nih.gov/41562327/). *Clinical genetics*. [Gene Therapy / Novel Therapeutics]
Meller LLT (2026). [PMID: 41499205](https://pubmed.ncbi.nlm.nih.gov/41499205/). *Endocrinology, diabetes & metabolism case reports*. [Gene Therapy / Novel Therapeutics]
Mom A (2026). [PMID: 42161899](https://pubmed.ncbi.nlm.nih.gov/42161899/). *Am J Med Genet C Semin Med Genet*. [Epidemiology / Natural History]
Velardo D (2026). [PMID: 42211024](https://pubmed.ncbi.nlm.nih.gov/42211024/). *Front Genet*. [Case Report / Case Series]
Battiston GS (2026). [PMID: 41572728](https://pubmed.ncbi.nlm.nih.gov/41572728/). *American journal of medical genetics. Part A*. [Case Report / Case Series]
Begum J (2025). [PMID: 39681016](https://pubmed.ncbi.nlm.nih.gov/39681016/). *European journal of obstetrics, gynecology, and reproductive biology*. [Case Report / Case Series]
Acharya R (2025). [PMID: 41212491](https://pubmed.ncbi.nlm.nih.gov/41212491/). *Indian journal of pediatrics*. [Gene Therapy / Novel Therapeutics]
Kidwai SM (2025). [PMID: 41480702](https://pubmed.ncbi.nlm.nih.gov/41480702/). *Prague medical report*. [Case Report / Case Series]
AI-curated news mentioning distal arthrogryposis
Updated Jul 24, 2026
A recent study refines the phenotypic landscape of PIEZO2-related disorders, expanding understanding beyond distal arthrogryposis. This research highlights the diverse clinical manifestations associated with mutations in the PIEZO2 gene.