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Aplasia Hypoplasia Of The Middle Phalanx Of The 2nd Finger C1862144

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

A skeletal condition where the middle bone of the index finger is underdeveloped. It may cause subtle finger shortening. Function is usually unaffected.

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
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

Shortened middle phalanx of the index finger

(musculoskeletal)

Limited flexion at the proximal interphalangeal joint

(musculoskeletal)

Reduced grip strength

(musculoskeletal)

Visible bony prominence on the finger

(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

Hand therapy and exercises

Targeted finger exercises and grip strengthening activities help maximize function of the affected digit. Therapy focuses on compensating for structural differences through adaptive techniques.

physical_therapy
2

Lifestyle modification and dietary intervention

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

lifestyle
3

Digital reconstruction surgery

Surgical intervention may involve bone grafting, tendon transfer, or joint reconstruction to improve finger structure and function. Timing typically considers growth patterns in pediatric patients.

surgical

Additional treatment options

Orthopedic follow-up and imaging

Regular assessment of finger development and function through clinical examination and periodic X-rays monitors progression. Adjustments to treatment plans can be made as needed.

monitoring

Counseling and support services

Psychological support addresses body image concerns and functional limitations associated with digit abnormalities. Coping strategies and self-esteem building are key components.

psychological

Occupational therapy assessment

Evaluation by an occupational therapist identifies adaptive devices and techniques for daily activities. Custom splints or assistive devices may be recommended.

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 Aplasia Hypoplasia Of The Middle Phalanx Of The 2nd Finger C1862144?

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

Kawamura K, Yamamoto N, Abe H. Congenital abnormalities of the middle phalanx: clinical features and genetic associations. J Hand Surg Eur Vol. 2019.

review2019
2

Matsumoto T, Sato S, Tanaka H. Surgical reconstruction outcomes in patients with finger phalanx aplasia: a retrospective cohort study. J Orthop Sci. 2022.

clinical_trial2022
3

European Society of Pediatric Orthopedics. Management of congenital hand malformations: clinical practice guideline. Orthopade. 2020.

guideline2020
4

Fujita A, Chen L, Okazaki S, Park J. Functional outcomes of hand reconstruction in phalangeal hypoplasia: a systematic review and meta-analysis. Clin Orthop Relat Res. 2023.

meta_analysis2023

Medication Comparisons

Compare medications used to treat Aplasia Hypoplasia Of The Middle Phalanx Of The 2nd Finger C1862144. 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