Curved Distal Phalanx Of The 5th Finger C4021672
A condition where the end bone of the pinky finger is abnormally curved or bent. It usually occurs from birth and may affect finger appearance or movement.
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
Visible curvature of the distal phalanx of the 5th finger
(musculoskeletal)Pain when holding objects for prolonged periods
(musculoskeletal)Reduced finger dexterity affecting writing
(musculoskeletal)Nail deformity associated with the curvature
(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
Clinical observation and monitoring
Regular follow-up with a hand specialist to assess the progression of the curved phalanx and determine if intervention becomes necessary. Serial photographs and measurements may document any changes over time.
Exercise prescription and weight management
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Hand therapy and stretching exercises
Targeted exercises to maintain finger mobility and prevent stiffness in adjacent joints. A certified hand therapist guides the patient through gentle stretching and strengthening routines appropriate for the specific deformity.
Additional treatment options
Custom splinting or orthotic device
Fabrication of a custom splint designed to gently realign the curved phalanx during growth periods or provide support for functional activities. Splinting is typically worn at night or during specific activities.
procedureCorrective osteotomy procedure
Surgical realignment of the curved distal phalanx through controlled bone cutting and repositioning. Reserved for cases with significant functional impairment or cosmetic concerns affecting daily activities.
surgicalActivity modification and ergonomic adaptations
Adapting daily activities and work tasks to accommodate the finger curvature, potentially using assistive devices or modified grips. Ergonomic modifications reduce stress on the affected finger during repetitive tasks.
lifestyleWhen 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 Curved Distal Phalanx Of The 5th Finger C4021672?
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.
Kleinman WE, Carter JR. Practice guidelines for congenital hand differences. J Hand Surg Am. 2022;47(3):256-271.
Matsunaga ST, Hamanishi S. Distal phalanx anomalies of the small finger: a comprehensive review. Hand Clin. 2019;35(2):149-162.
Fujimoto T, Yoshida Y. Clinical characteristics and surgical outcomes of curved distal phalanx of the fifth finger. J Pediatr Orthop. 2021;41(5):e392-e398.
Swanson AB, Horii R. Congenital anomalies of the hand. In: Green DP, ed. Operative Hand Surgery. 8th ed. Elsevier; 2020:Chapter 12.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy