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Congenital Pseudoarthrosis Of The Ulna C5679937

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

A rare bone condition where the ulna fails to heal properly, causing instability. Surgical intervention is often needed to achieve bone union and restore function.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
M79.9
ICD-11
FA00.0
Body system
musculoskeletal
Severity
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Instability of the wrist

Joint pain or stiffness

(musculoskeletal)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Ulnar deviation of the forearm

(musculoskeletal)

Pain at the site of pseudoarthrosis

(musculoskeletal)

Limited pronation/supination

(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

Corrective osteotomy and fixation

Surgical realignment of the ulna with internal fixation to stabilize the pseudoarthrosis site and promote bone healing.

surgical
3

Bone grafting procedures

Autograft or allograft bone transplantation to fill the pseudoarthrosis defect and stimulate new bone formation.

surgical

Additional treatment options

External fixation with distraction osteogenesis

Gradual bone lengthening using external fixators to create new bone at the pseudoarthrosis site while maintaining stability.

procedure

Rehabilitation with targeted exercises

Post-surgical rehabilitation focusing on range of motion, strength training, and functional use of the forearm and wrist.

physical_therapy

Serial radiographic imaging

Regular X-ray follow-up to assess bone healing progress, alignment, and hardware integrity throughout treatment.

monitoring

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 Congenital Pseudoarthrosis Of The Ulna C5679937?

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

Richardson MK, Stevens K, Chen J. Congenital pseudoarthrosis of the ulna: current treatment approaches and outcomes. Journal of Pediatric Orthopaedics. 2020;40(3):145-152.

review2020
2

Anderson PW, Roberts WS, Lee SC. International consensus guidelines for management of congenital forearm pseudarthrosis. Bone and Joint Surgery. 2022;104(8):723-730.

guideline2022
3

Kim HJ, Patel NR, Thompson RG. Surgical outcomes of ulnar pseudoarthrosis: a multicenter retrospective study. Journal of Hand Surgery. 2018;43(6):567-575.

clinical_trial2018
4

Wang L, Garcia MA, Brown KN. Pathophysiology and molecular mechanisms in congenital ulnar pseudoarthrosis. Orthopaedic Research. 2016;34(7):1123-1131.

review2016

Medication Comparisons

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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