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Synpolydactyly Type 2 C1842422

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

A form of synpolydactyly where fingers are webbed and extra digits are present, often with additional skeletal features. Surgical correction can improve function and appearance.

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.

Extra digit on the ulnar side of the hand

(musculoskeletal)

Joint pain or stiffness

(musculoskeletal)

Mild symptoms that may not significantly impact daily life.

Frequency: Common at all stages

Partial fusion of extra digit with adjacent finger

(musculoskeletal)

Impaired hand function due to extra digit

(musculoskeletal)

Mild pain at the base of the extra digit

(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

Exercise prescription and weight management

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

lifestyle
2

Polydactyly Excision

Surgical removal of supernumerary digits with careful attention to preserving functional structures and achieving optimal cosmetic outcomes.

surgical
3

Web Space Reconstruction

Specialized surgical technique to release intermetacarpal webbing while preserving vascular and neural structures essential for hand function.

surgical

Additional treatment options

Developmental Hand Assessment

Serial assessments of fine motor development, grip patterns, and hand utilization to guide timing of interventions and therapy needs.

monitoring

Post-Surgical Digit Mobilization

Structured rehabilitation program focusing on range of motion exercises, scar management, and strengthening to maximize surgical outcomes.

physical_therapy

Family Counseling

Support services addressing parental concerns about the condition, genetic implications, and strategies for supporting the child's emotional development.

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 Synpolydactyly Type 2 C1842422?

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

Biesecker LG, Everett J. Limb malformation syndromes: A clinical and molecular review. Am J Med Genet C Semin Med Genet. 2022;190(2):115-128.

review2022
2

Kumar A, Patel R, Williams N. International Consensus Guidelines for the Management of Congenital Limb Anomalies. J Hand Surg Eur. 2021;46(5):456-472.

guideline2021
3

Malik S, Goyal A, Sharma M. Clinical and Genetic Characterization of Synpolydactyly Type 2: A Case Series Study. Clin Genet. 2020;97(4):589-601.

other2020
4

Thompson K, Anderson J. Polydactyly and Syndactyly: Embryology, Genetics, and Surgical Management. Orthop Clin North Am. 2019;50(3):315-330.

review2019

Medication Comparisons

Compare medications used to treat Synpolydactyly Type 2 C1842422. 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