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Radial Ray Deficiency X Linked C1845717

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

A congenital limb malformation affecting the radius bone in the forearm, causing radial ray abnormalities. It may occur as an isolated finding or with other birth defects. Treatment includes surgical correction and physical therapy.

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

Key facts at a glance

ICD-10
Q89.9
ICD-11
LA00.0
Body system
congenital
Severity
severe
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Generalized symptoms

(congenital)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Radial ray deficiency

(musculoskeletal)

Thumb abnormalities

(musculoskeletal)

Upper limb contractures

(musculoskeletal)

Renal anomalies

(renal)

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

Medication management with follow-up care

Active treatment with regular monitoring by a healthcare provider is recommended.

medication
2

Upper limb reconstructive surgery

Surgical intervention to reconstruct or improve function of the radial ray deficiency, including possible tendon transfers, bone reconstruction, or prosthetic consideration. Multiple staged procedures may be required depending on severity.

surgical
3

Occupational therapy and hand function rehabilitation

Specialized therapy focusing on improving fine motor skills, grip strength, and functional use of affected limbs through targeted exercises and adaptive techniques. Long-term therapy helps maximize independence.

physical_therapy

Additional treatment options

Assistive device assessment and provision

Evaluation by occupational therapists to identify and provide appropriate assistive devices such as modified utensils, writing aids, or adaptive equipment to enhance daily functioning and independence.

complementary

Psychosocial support and counseling

Mental health support addressing body image concerns, self-esteem issues, and adaptation to living with a congenital limb difference. May include individual and family counseling.

psychological

Multidisciplinary long-term follow-up

Regular monitoring by orthopedic specialists, genetic counselors, and rehabilitation teams to assess functional outcomes, plan future interventions, and address emerging needs throughout the lifespan.

monitoring

When to seek medical help

Recognize when you need immediate medical attention.

See a doctor within 24 hours

Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.

Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Radial Ray Deficiency X Linked C1845717?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Medication Comparisons

Compare medications used to treat Radial Ray Deficiency X Linked C1845717. 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