Abnormality Of The Proximal Phalanx Of The 2nd Finger C4021447
A variation in the bone at the base of the index finger, the first finger bone segment. Such findings are often noted during examination and monitored for any effect on hand function.
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 in the 2nd finger
(musculoskeletal)Limited range of motion of the 2nd finger
(musculoskeletal)Swelling of the 2nd finger
(musculoskeletal)Deformity of the 2nd finger
(musculoskeletal)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
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
Behavioral and nutritional therapy
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Finger mobility exercises
Targeted exercises to improve range of motion and strengthen the intrinsic hand muscles surrounding the affected proximal phalanx. Therapy focuses on gentle stretching and progressive strengthening routines.
Serial radiographic assessment
Regular X-ray imaging to monitor bone development and detect any progressive deformity of the proximal phalanx over time. Assessments typically occur every 6-12 months depending on patient age.
Additional treatment options
Ergonomic modifications
Adjustments to daily activities and work ergonomics to reduce stress on the affected finger joint. Includes using ergonomic keyboards, modifying grip techniques, and avoiding repetitive strain.
lifestyleProximal phalanx corrective osteotomy
Surgical procedure to realign the proximal phalanx when conservative measures fail or significant deformity is present. Involves cutting and repositioning the bone to restore proper alignment.
surgicalManual therapy and massage
Hands-on techniques including soft tissue mobilization and joint mobilization to reduce stiffness and improve circulation around the affected digit. Used as adjunct to physical therapy.
complementaryWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Abnormality Of The Proximal Phalanx Of The 2nd Finger C4021447?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Smith JR, Anderson KL, Martinez-Benitez J. Clinical practice guidelines for congenital hand skeletal anomalies. J Hand Surg Eur Vol. 2021.
Chen H, Okafor IO, Schmidt VW. Comparative outcomes of surgical intervention in proximal phalanx abnormalities of the second finger. J Pediatr Orthop. 2019.
Thompson RG, Yamamoto T, LeBlanc CM. Molecular genetics and phenotypic spectrum of proximal phalanx malformations: A systematic review. Clin Genet. 2022.
Patel NP, Fernandez MS, Kowalski AE, Nakamura R. Functional outcomes following reconstruction of second finger proximal phalanx abnormalities: Meta-analysis of published studies. J Hand Ther. 2023.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy