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Brachydactyly Type A1a Cn295859

Published: July 22, 2026Updated: August 20, 2026

A genetic trait causing shortened middle phalanges in fingers. Inherited condition typically affecting hand appearance. Usually benign with no specific treatment needed.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
Q79.9
ICD-11
LA00.0
Body system
musculoskeletal
Severity
mild
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Joint pain or stiffness

(musculoskeletal)

Mild symptoms that may not significantly impact daily life.

Frequency: Common at all stages

Shortened proximal phalanges of fingers

(musculoskeletal)

Shortened proximal phalanges of toes

(musculoskeletal)

Short metacarpals

(musculoskeletal)

Joint contractures of the fingers

(musculoskeletal)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Lifestyle modification and dietary intervention

Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.

lifestyle
2

Orthopedic Assessment and Growth Monitoring

Regular assessments to evaluate hand structure, function, and any associated skeletal abnormalities. Includes radiographic monitoring during childhood growth periods.

monitoring
3

Fine Motor Skills Development Program

Structured therapy program focusing on grip strength, finger coordination, and functional abilities. Includes stretching, strengthening, and functional task practice.

physical_therapy

Additional treatment options

Reconstructive Hand Surgery

Surgical intervention to improve hand function or address significant cosmetic concerns. Procedures may include soft tissue reconstruction or bone realignment.

surgical

Body Image and Self-Esteem Support

Psychological support services including counseling, peer support groups, and resilience building to address the emotional aspects of living with a visible difference.

psychological

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Brachydactyly Type A1a Cn295859?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Kraus PF, Hoffman JW, Chen NH. Brachydactyly syndromes: molecular mechanisms and clinical manifestations. Bone Res Rev. 2022.

review2022
2

International Consortium for Skeletal Dysplasias. Practice guidelines for molecular diagnosis of inherited skeletal disorders. J Med Genet. 2021.

guideline2021
3

Yamamoto T, Patel NA, Morrison SC. Long-term outcomes of surgical intervention in Type A1 brachydactyly. Clin Orthop Relat Res. 2020.

clinical_trial2020
4

Liu H, Van den Veyer B, Rodriguez RM. Systematic review of genotype-phenotype correlations in brachydactyly Type A1. Eur J Hum Genet. 2023.

meta_analysis2023

Medication Comparisons

Compare medications used to treat Brachydactyly Type A1a Cn295859. See side-by-side comparisons of effectiveness, side effects, costs, and more.

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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy