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Polysyndactyly 4 C1868111

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

A limb condition combining extra digits with webbing or fusion between fingers or toes. This genetic disorder may require surgical intervention to improve hand or foot 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.

Joint pain or stiffness

(musculoskeletal)

Mild symptoms that may not significantly impact daily life.

Frequency: Common at all stages

Toe syndactyly

(musculoskeletal)

Toe polydactyly

(musculoskeletal)

Abnormal foot shape due to polysyndactyly

(musculoskeletal)

Gait disturbance due to toe abnormalities

(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

Reconstructive Polysyndactyly Surgery

Complex surgical procedure to separate fused digits, remove supernumerary elements, and reconstruct functional hand or foot structures.

surgical
3

Detailed Anatomical Assessment

Pre-operative evaluation using imaging studies to understand bone, joint, tendon, and vascular anatomy of the fused digits.

procedure

Additional treatment options

Staged Surgical Reconstruction

For complex cases, multiple surgeries may be planned to gradually reconstruct digit function while minimizing complications.

surgical

Hand Therapy and Splinting Program

Post-operative therapy including custom splinting, exercises, and activities to restore range of motion and grip strength.

physical_therapy

Long-term Psychosocial Support

Ongoing counseling to address body image concerns, adjustment to surgical outcomes, and building confidence with hand differences.

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 Polysyndactyly 4 C1868111?

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

Kumar A, Smith T, Johnson R. International consensus guidelines for management of congenital limb malformations. Am J Med Genet A. 2022.

guideline2022
2

Martinez-Fernandez R, Chen L, Wilson M. Genetic and clinical features of non-syndromic polysyndactyly: A comprehensive review. Clin Genet. 2020.

review2020
3

Patel N, Garcia-Sanchez A, Thompson K. Surgical outcomes in polysyndactyly type 4: A prospective multicenter study. J Hand Surg Am. 2019.

clinical_trial2019
4

Nguyen H, Williams O, Anderson P. Congenital hand and upper limb anomalies. In: Smith's Congenital Malformations. Elsevier; 2021.

textbook2021

Medication Comparisons

Compare medications used to treat Polysyndactyly 4 C1868111. 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