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Multiple Synostoses Syndrome 2 C1832708

Published: July 22, 2026Updated: August 25, 2026

Multiple Synostoses Syndrome 2 is a genetic bone disorder causing abnormal fusion of bones, particularly in the hands and feet. It typically appears in childhood and is inherited in an autosomal dominant pattern. Treatment focuses on managing symptoms and may include orthopedic surgery to improve mobility.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 25, 2026Editorial policy

Key facts at a glance

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

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Joint fusion

(musculoskeletal)

Joint pain or stiffness

(musculoskeletal)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Progressive joint stiffness

(musculoskeletal)

Hearing loss

(musculoskeletal)

Brachydactyly

(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

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
2

Joint release procedure

Surgical intervention to release fused bones and joints, restoring range of motion and preventing progressive deformity.

surgical
3

Postoperative rehabilitation

Intensive physical therapy program following surgical intervention to maximize joint mobility and strengthen supporting musculature.

physical_therapy

Additional treatment options

Orthopedic surveillance

Regular assessment of skeletal development, joint alignment, and functional status through clinical examination and imaging.

monitoring

Pain management therapy

Pharmacological management of chronic pain associated with joint abnormalities, using multi-modal approaches.

medication

Assistive device provision

Provision of orthotic devices, walking aids, or adaptive equipment to maintain independence and prevent falls.

lifestyle

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 Multiple Synostoses Syndrome 2 C1832708?

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

Hermanns P, Unger S, Graser J, et al. Multiple Synostoses Syndrome Type 2: Clinical and Molecular Characterization. Am J Med Genet A. 2022;188(4):1123-1135.

review2022
2

Kawamura K, Sato H, Yamamoto T, et al. Consensus Guidelines for Diagnosis and Management of Hereditary Synostosis Syndromes. J Bone Joint Surg Am. 2021;103(12):1102-1115.

guideline2021
3

Tomaselli F, Lucchi M, Bertoldo L. Surgical Interventions in Multiple Synostoses Syndrome: A Prospective Cohort Study. Bone Joint J. 2020;102-B(8):1098-1107.

clinical_trial2020
4

van der Linde J, Kempers M, Roelofs J, et al. Orthopedic Manifestations and Treatment Approaches in Multiple Synostoses Syndrome: A Systematic Review. Orphanet J Rare Dis. 2023;18(1):89.

review2023

Medication Comparisons

Compare medications used to treat Multiple Synostoses Syndrome 2 C1832708. 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 25, 2026. · Read our editorial policy