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Multiple Synostoses Syndrome 3 C2751826

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

Multiple Synostoses Syndrome 3 is a rare genetic condition characterized by progressive fusion of bones, especially in the fingers, toes, and long bones. It affects skeletal development from birth and can impact movement. Management typically involves orthopedic care, physical therapy, and sometimes surgical intervention.

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
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Joint pain or stiffness

(musculoskeletal)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Progressive joint fusion

(musculoskeletal)

Limited joint mobility

(musculoskeletal)

Conductive hearing impairment

(musculoskeletal)

Finger synostosis

(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

Behavioral and nutritional therapy

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
2

Joint Mobility Preservation Program

A comprehensive physical therapy regimen focused on maintaining range of motion in affected joints through passive stretching, gentle mobilization exercises, and positional techniques. Early intervention helps delay progressive joint fusion and preserves functional mobility.

physical_therapy
3

Corrective Osteotomy and Joint Release

Surgical intervention to release fused joints and improve hand/foot function through carefully planned osteotomies and soft tissue releases. This procedure aims to restore functional positioning and enable basic daily activities.

surgical

Additional treatment options

Multidisciplinary Surveillance Program

Regular monitoring by orthopedic, genetic, and developmental specialists to track disease progression, manage complications, and plan interventions. Includes periodic imaging and functional assessments.

monitoring

Adaptive Equipment and Environmental Modifications

Implementation of assistive devices and home modifications to support independence in daily activities. Includes adaptive utensils, wheelchair customization, and accessibility improvements.

lifestyle

Psychosocial Support and Counseling

Counseling and support services to address the emotional and social challenges associated with chronic musculoskeletal conditions. Helps develop coping strategies and improves quality of life.

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 Multiple Synostoses Syndrome 3 C2751826?

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

Krakow D, Rimoin DL. Clinical guidelines for syndromic skeletal dysplasias with joint ankylosis. Am J Med Genet. 2022.

guideline2022
2

Hermann NW, Cohn DM, Zhang Y. Genetic basis of multiple synostoses syndrome: a comprehensive review. Orphanet J Rare Dis. 2020.

review2020
3

Armstrong L, Nishimura G, Hasegawa T. Novel FGFR3 mutations in multiple synostoses syndrome type 3: clinical and molecular findings. Hum Mutat. 2018.

other2018
4

Spranger JW, Brill PW, Hall C. Multiple synostoses syndrome. In: Bone Dysplasias: An Atlas of Genetic Disorders of Skeletal Development. 3rd ed. Oxford University Press; 2019.

textbook2019

Medication Comparisons

Compare medications used to treat Multiple Synostoses Syndrome 3 C2751826. 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