Q70.4

Clinical Causes: Genetic mutations or inherited factors Family history of limb malformations Genetic syndromes associated with limb abnormalities Environmental influences during pregnancy, such as exposure to certain drugs, chemicals, or infections Random developmental anomalies during limb formation in embryogenesis

Key Symptoms: Presence of extra fingers or toes (supernumerary digits) Webbing or skin fusion between fingers or toes Abnormal finger or toe shape or size Difficulty with gripping, grasping, or footwear, depending on severity Potential functional impairment or cosmetic concerns

Diagnosis Path: Diagnosis is primarily based on physical examination after birth. Sometimes imaging studies, such as X-rays, are used to assess the bony structures and extra digits more clearly. This helps distinguish between simple extra digits and more complex malformations involving bones and joints. Genetic counseling or testing may also be recommended to identify underlying syndromes or genetic patterns.

Treatment Protocols: Management of polysyndactyly typically involves surgical intervention aimed at removing extra digits and reconstructing the affected hand or foot for improved function and appearance. The timing of surgery varies depending on the child's age and the complexity of the malformation. Postoperative therapy may include physical therapy to enhance mobility and strength, as well as ongoing monitoring for any functional or cosmetic concerns.