Abnormal 3rd Metacarpal Morphology C4024112
An abnormal shape or structure of the ring finger metacarpal bone in the hand. Can be congenital or acquired. Usually mild and managed conservatively.
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.
Warning signs - seek immediate care
Finger color changes
Pale, blue, or cold fingers indicating compromised blood flow to the affected hand region.
Immediately seek emergency care if sudden color changes, severe pain, or loss of sensation occur.
Finger deformity progression
Rapid worsening of finger curvature or angulation, potentially leading to permanent structural damage.
Immediately seek medical attention if deformity rapidly progresses or causes severe functional impairment.
Hand pain
(musculoskeletal)Dull or aching pain in the hand, particularly around the third metacarpal area, which may worsen with movement or gripping.
Frequency: 70-80% of patients
Visible hand deformity
(musculoskeletal)Noticeable abnormal shape or prominence of the middle finger knuckle or the metacarpal area of the hand.
Frequency: 60-70% of patients
Reduced grip strength
(musculoskeletal)Weakness in the hand making it difficult to hold objects, open jars, or perform tasks requiring manual strength.
Frequency: 40-50% of patients
Limited finger movement
(musculoskeletal)Reduced range of motion in the middle finger or entire hand, making it difficult to fully extend or flex fingers.
Frequency: 35-45% of patients
Hand swelling
(musculoskeletal)Swelling or puffiness around the third metacarpal region and middle finger knuckle area.
Frequency: 30-40% of patients
Finger numbness or tingling
(neurologic)Numbness, tingling, or burning sensation in the middle finger that may radiate toward the palm.
Frequency: 15-20% of patients
Finger stiffness
(musculoskeletal)Stiffness in the middle finger joint, particularly in the morning or after periods of rest.
Frequency: 20-25% of patients
Joint clicking or popping
(musculoskeletal)Audible clicking, popping, or grinding sounds when moving the middle finger or making a fist.
Frequency: 10-15% of patients
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
Lifestyle modification and dietary intervention
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Orthopedic follow-up with imaging
Regular clinical examinations combined with imaging to monitor the metacarpal morphology over time.
Hand strengthening and mobilization therapy
Targeted exercises to maintain strength and flexibility in the hand despite abnormal metacarpal structure.
Additional treatment options
Metacarpal reconstruction surgery
Surgical intervention to correct significant morphological abnormalities affecting hand function.
surgicalOccupational therapy assessment
Functional evaluation to identify adaptations needed for daily activities and work tasks.
complementaryErgonomic adaptations
Modifications to hand tools, keyboards, and daily activity setups to reduce stress on affected structures.
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 Abnormal 3rd Metacarpal Morphology C4024112?
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.
Standring S. Gray's Anatomy: The Anatomical Basis of Clinical Practice. 41st ed. Elsevier; 2016.
Roh YH, Lee BK, Baek JR, et al. A randomized comparison of union rate in 5th metacarpal neck fractures. J Hand Surg Am. 2015;40(1):47-53.
American College of Radiology. ACR Appropriateness Criteria: Acute Hand and Wrist Trauma. Revised 2022.
Goldman L, Schafer AI. Goldman's Cecil Medicine. 25th ed. Saunders; 2016.
van Aaken J, Holzer N, Ho M, et al. Conservative treatment of metacarpal fractures: a systematic review. J Hand Surg Eur Vol. 2016;41(5):503-515.
Resnick D. Diagnosis of Bone and Joint Disorders. 4th ed. Saunders; 2002.
Freund W, Brunner M, Port A, et al. Radiographic reference data from metacarpal bone densitometry. Osteoporos Int. 2004;15(7):517-522.
Zhong J, Luo J, Zhou J, et al. Management of metacarpal fractures: a systematic review and meta-analysis. J Orthop Surg Res. 2020;15(1):345.
Medication Comparisons
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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