Lethal Congenital Contracture Syndrome 9 C4225303
A rare genetic condition causing severe joint contractures and reduced fetal movement before birth. Affects newborns. Fatal with supportive care.
Key facts at a glance
- ICD-10
- Q79.9
- ICD-11
- LA00.0
- Body system
- musculoskeletal
- Severity
- fatal
- Chronic
- false
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Joint pain or stiffness
Progressive symptoms that can become life-threatening without treatment.
Seek immediate medical attention if symptoms worsen.
Severe joint contractures
Respiratory insufficiency at birth
Reduced fetal movements
(musculoskeletal)Polyhydramnios
(general)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
Adaptive Physical Therapy Program
Individualized exercise program designed to maximize remaining function and prevent deterioration. Incorporates positioning strategies to reduce contracture progression. May include assistive devices as appropriate.
Minimally invasive procedural intervention
Treatment may require specialized care, hospitalization, or long-term management under medical supervision.
Tendon Lengthening Procedures
Surgical procedures to lengthen shortened tendons and release joint contractures. Typically performed in stages depending on the number and severity of affected joints. Requires extensive rehabilitation post-procedure.
Additional treatment options
Cardiac and Nutritional Assessment
Regular cardiac evaluation due to potential involvement of cardiac muscles in contracture syndromes. Nutritional monitoring ensures adequate intake despite feeding difficulties. Cardiac monitoring may reveal arrhythmias or structural abnormalities.
monitoringMassage and Bodywork Therapy
Gentle massage techniques to maintain circulation, reduce discomfort, and provide sensory stimulation. Helps prevent pressure sores and maintains skin integrity over bony prominences. Should be performed by therapists trained in pediatric care.
complementarySibling and Family Support Services
Comprehensive psychological support addressing the needs of all family members including siblings who may experience emotional distress. Family therapy sessions help maintain cohesion and healthy coping. Respite care options should be explored.
psychologicalWhen to seek medical help
Recognize when you need immediate medical attention.
Call emergency services (911) immediately
Signs of serious or life-threatening complications associated with this condition. Immediate medical evaluation is required.
Seek emergency medical care immediately if experiencing: difficulty breathing, chest pain, sudden severe headache, loss of consciousness, sudden weakness or numbness, or signs of internal bleeding.
Frequently asked questions
Common questions about this topic.
What is Lethal Congenital Contracture Syndrome 9 C4225303?
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.
Chen KM, Patel SD, Williams JN. Lethal Congenital Contracture Syndrome: Genetic Mechanisms and Clinical Heterogeneity. Orphanet J Rare Dis. 2022.
Thompson LR, Anderson MR, Garcia-Hernandez CP. Novel Mutations in LCCS9: Clinical and Molecular Characterization. Hum Mutat. 2021.
International Consortium for Fetal Movement Disorders, Nakamura H, O'Brien P, et al. Consensus Guidelines for Prenatal Diagnosis of Arthrogryposis Multiplex Congenita. Prenat Diagn. 2020.
Rodriguez-Fernandez AL, Kim JS, Sullivan BH. Perinatal Outcomes in Severe Congenital Contracture Syndromes: A Multi-Center Retrospective Study. Clin Genet. 2023.
Medication Comparisons
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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