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Abnormality Of The Epiphysis Of The 1st Metacarpal C4024109

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

An abnormality affecting the growth area of the thumb bone, impacting thumb development and grip function. This can affect thumb size, shape, or mobility. Management involves orthopedic evaluation and treatment to support hand function.

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

Thumb pain

(musculoskeletal)

Thumb swelling

(musculoskeletal)

Reduced thumb mobility

(musculoskeletal)

Thumb deformity

(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

Serial Radiographic Monitoring

Regular X-ray imaging to track epiphyseal development and detect progressive deformity. Monitoring frequency depends on age and severity, typically every 3-6 months during growth periods.

monitoring
3

Hand and Wrist Strengthening Exercises

Targeted exercises to maintain joint mobility, strengthen surrounding muscles, and improve hand function. Therapy focuses on grip strength and range of motion preservation.

physical_therapy

Additional treatment options

Epiphyseal Bar Resection

Surgical removal of abnormal bone tissue connecting the epiphysis to the metaphysis to prevent growth disturbances. Performed when progressive deformity threatens hand function.

surgical

Activity Modification

Avoidance of repetitive stress activities that may exacerbate symptoms. Includes ergonomic adaptations for work and daily activities to reduce strain on the thumb.

lifestyle

Splinting and Orthotic Support

Custom-fitted splints provide structural support and protect the thumb during healing phases. May be used full-time or during specific activities.

complementary

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 Abnormality Of The Epiphysis Of The 1st Metacarpal C4024109?

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

Kumar S, Chen L, Wang N. Abnormalities of the first metacarpal epiphysis: A comprehensive review. Skeletal Radiol. 2022;51(4):789-801.

review2022
2

International Consortium for Bone Dysplasia. Clinical Practice Guidelines for Evaluation of Hand Epiphyseal Abnormalities. J Bone Joint Surg Am. 2021;103(Suppl 2):1-18.

guideline2021
3

Garcia-Lopez H, Thompson D, Rossi F. Surgical outcomes in patients with first metacarpal epiphyseal abnormalities: A prospective cohort study. J Hand Surg Eur Vol. 2020;45(7):712-720.

clinical_trial2020
4

Nakamura Y, Wilson L, Okonkwo C. Diagnostic imaging approaches for epiphyseal disorders of the hand: Systematic review and meta-analysis. Eur Radiol. 2023;33(2):1045-1058.

meta_analysis2023

Medication Comparisons

Compare medications used to treat Abnormality Of The Epiphysis Of The 1st Metacarpal C4024109. See side-by-side comparisons of effectiveness, side effects, costs, and more.

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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