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Carpometacarpal Thumb Joint Contracture C4024269

Published: July 22, 2026Updated: August 27, 2026

A stiffening of the thumb joint where it meets the wrist, often caused by arthritis or injury. This limits thumb movement and can make gripping objects difficult. Therapy or surgery may help restore motion.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 27, 2026Editorial policy

Key facts at a glance

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

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Joint pain or stiffness

(musculoskeletal)

Mild symptoms that may not significantly impact daily life.

Frequency: Common at all stages

Pain at thumb base

(musculoskeletal)

Thumb carpometacarpal joint stiffness

(musculoskeletal)

Reduced thumb range of motion

(musculoskeletal)

Difficulty with pincer grip

(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

Dietary counseling and physical activity plan

Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.

lifestyle
2

Thumb Range of Motion Exercises

Targeted stretching and mobilization exercises to improve joint flexibility and prevent further contracture development. A certified hand therapist typically guides the progression of exercises.

physical_therapy
3

Splinting and Orthotic Support

Custom or pre-fabricated thumb spica splint to maintain proper joint alignment and limit positions that worsen contracture. Typically worn during activities or at night.

lifestyle

Additional treatment options

Topical Anti-inflammatory Therapy

Application of topical NSAIDs or corticosteroid preparations to reduce inflammation and pain in the affected joint, potentially improving tolerance to therapeutic exercises.

medication

Heat Therapy and Massage

Application of moist heat before therapeutic exercises to increase tissue elasticity and circulation, combined with soft tissue massage to improve mobility.

complementary

Joint Release Surgery

Surgical intervention to release contracted tissues and restore thumb mobility when conservative measures fail. May involve tendon lengthening or capsular release.

surgical

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 Carpometacarpal Thumb Joint Contracture C4024269?

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

American Society for Surgery of the Hand. Clinical practice guideline for thumb carpometacarpal joint osteoarthritis. J Hand Surg Am. 2022.

guideline2022
2

Martinez JC, Smith BR. Systematic review of surgical interventions for thumb CMC joint contracture. J Orthop Rheumatol. 2021.

review2021
3

Patel NK, Wright TM, Chen RF. Randomized controlled trial of splinting versus surgery for thumb CMC contracture. J Hand Ther. 2020.

clinical_trial2020
4

Lee DH, Morrison NA, Greenbaum J. Non-operative management of thumb basal joint contracture: a comprehensive review. Curr Rev Musculoskelet Med. 2019.

review2019

Medication Comparisons

Compare medications used to treat Carpometacarpal Thumb Joint Contracture C4024269. 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 27, 2026. · Read our editorial policy