Symphalangism Proximal 1b C3809104
A genetic condition where the joints closest to the fingers or toes are fused, which can limit hand or foot movement.
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.
Fusion of proximal interphalangeal joints
(musculoskeletal)Joint pain or stiffness
(musculoskeletal)Mild symptoms that may not significantly impact daily life.
Frequency: Common at all stages
Limited finger extension
(musculoskeletal)Foot deformities (e.g., toe fusion)
(musculoskeletal)Elbow joint fusion
(musculoskeletal)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
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
Hand therapy and range of motion exercises
Specialized physical therapy program focusing on maintaining flexibility, improving grip strength, and maximizing hand function through targeted exercises and stretches.
Healthy lifestyle changes and stress management
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Surgical release and reconstruction
Corrective surgery to separate fused digits and reconstruct soft tissues, performed by hand surgeons experienced in congenital conditions.
Additional treatment options
Assistive devices and adaptive equipment
Provision of specialized tools and devices designed to compensate for limited finger mobility and enhance independence in daily activities.
lifestyleRegular orthopedic follow-up
Ongoing assessment of hand function, digit development, and surgical outcomes through periodic examinations and imaging as needed.
monitoringWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Symphalangism Proximal 1b C3809104?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Kochhar A, Bhatt S, Patel MP. Symphalangism and carpal coalition: Clinical features and genetic basis. Orphanet J Rare Dis. 2022.
International Consortium on Skeletal Dysplasias. Management Guidelines for Hereditary Synostosis Disorders. J Bone Joint Surg Am. 2020.
Nakamura Y, Lopez-Morales M, Schmidt RJ. Surgical outcomes in proximal symphalangism: A prospective cohort study. J Hand Surg Eur Vol. 2021.
Ferreira JC, Russo RT, Al-Mufarrej H. Functional outcomes in symphalangism: Systematic review and meta-analysis. Clin Orthop Relat Res. 2023.
Medication Comparisons
Compare medications used to treat Symphalangism Proximal 1b C3809104. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
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