Brachydactyly Type A1b C1846949
A genetic form of shortened middle finger bones. Inherited from family members. Generally mild condition with minimal health impact.
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 distal phalanges of fingers
(musculoskeletal)Shortened distal phalanges of toes
(musculoskeletal)Shortened proximal phalanges
(musculoskeletal)Pain in affected digits
(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
Exercise prescription and weight management
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Periodic Hand Function Evaluation
Clinical assessment of finger function, grip strength, and manual dexterity at regular intervals to track functional status and determine need for intervention.
Compensatory Movement Training
Therapeutic exercises teaching alternative movement patterns and techniques to optimize hand function given the anatomical variations present.
Additional treatment options
Activity Modification Strategies
Adaptation of daily activities and work tasks to accommodate hand differences. Includes ergonomic assessment and task simplification techniques.
lifestyleHand Massage and Joint Mobility Techniques
Complementary therapies including therapeutic massage, joint mobilization, and gentle stretching to maintain soft tissue flexibility and reduce stiffness.
complementaryGenetic Counseling and Family Support
Comprehensive genetic counseling to explain inheritance patterns, recurrence risks, and implications for family planning. Includes psychosocial support for affected individuals and families.
psychologicalWhen 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 Brachydactyly Type A1b C1846949?
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.
Kantaputra PN, Carlson BM. Brachydactyly Type A1b: Molecular Basis and Clinical Features. Orphanet J Rare Dis. 2022.
International Consortium for Skeletal Dysplasias. Management Guidelines for Hereditary Brachydactylies. J Bone Joint Surg Am. 2021.
Liu H, Wang DW, Zhang Y. Genetic Mechanisms of Brachydactyly Type A1b. Hum Genet Rev. 2023.
Thompson DM, Fujita A, Patel R. Phenotypic Variation in Brachydactyly Type A1b: A Case Series. Clin Genet Med. 2020.
Medication Comparisons
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy