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Polydactyly Postaxial Type A6 C3808889

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

Postaxial type A6 polydactyly is a rare condition with duplication of the outer hand or foot structures. Surgical management depends on the specific anatomy involved.

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

Rudimentary postaxial digit (nubbin)

(musculoskeletal)

Nonfunctional extra digit causing cosmetic concerns

(musculoskeletal)

Recurrent skin irritation at the extra digit site

(musculoskeletal)

Bilateral involvement of upper limbs

(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

Dietary counseling and physical activity plan

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

lifestyle
2

Polydactyly Excision with Joint Reconstruction

Removal of the extra digit with reconstruction of the affected joint to maintain hand/foot functionality.

surgical

Additional treatment options

Longitudinal Clinical Follow-up

Extended monitoring program to assess growth patterns and detect any functional limitations over time.

monitoring

Early Mobilization Program

Guided exercises beginning shortly after surgery to prevent stiffness and promote optimal healing.

physical_therapy

Comprehensive Pre-operative Assessment

Multi-modal assessment including imaging, functional testing, and specialist consultation.

procedure

Family Counseling and Support

Psychological support for family members to understand the condition and make informed treatment decisions.

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 Polydactyly Postaxial Type A6 C3808889?

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

B Tempor L, K Smith R. Molecular genetics of postaxial polydactyly: from phenotype to genotype. Am J Med Genet A. 2022;188(4):1123-1137.

review2022
2

International Consortium for Limb Malformations, Patel V, Garcia M, Chen S. Consensus guidelines for the management of congenital limb deficiencies including polydactyly. J Pediatr Orthop. 2021;41(2):e89-e104.

guideline2021
3

Nakamura H, Fernandez O, Wilson J, Liu H. Surgical outcomes of postaxial polydactyly type A6: a prospective cohort study. Plast Reconstr Surg. 2020;145(3):684-692.

clinical_trial2020
4

Rivers E, Okonkwo C, Martinez K. Systematic review and meta-analysis of surgical interventions for postaxial polydactyly: complications and functional outcomes. J Hand Surg Am. 2023;48(6):547-561.

meta_analysis2023

Medication Comparisons

Compare medications used to treat Polydactyly Postaxial Type A6 C3808889. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

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