Polydactyly: Clinical and molecular manifestations.

Area of Science:

• Developmental biology
• Clinical genetics
• Orthopedic surgery

Background:

• Polydactyly is a congenital limb malformation characterized by supernumerary digits.
• It is a common inherited disorder, classified as non-syndromic or syndromic.
• Forms include pre-axial, post-axial, and mesoaxial, affecting upper limbs more than lower.

Purpose of the Study:

• To review the classification and genetic underpinnings of polydactyly.
• To highlight advancements in diagnostic technologies for limb malformations.
• To discuss current surgical treatment approaches for polydactyly.

Main Methods:

• Review of existing literature on polydactyly.
• Analysis of genetic mutation data associated with limb development.
• Correlation of genotype with phenotype in polydactyly cases.

Main Results:

• Non-syndromic polydactyly often follows autosomal dominant inheritance.
• Defects in anterior-posterior limb patterning are implicated in polydactyly.
• Next-generation sequencing facilitates early diagnosis and screening.

Conclusions:

• Surgical intervention is the standard treatment for polydactyly.
• Treatment strategies are tailored to the diverse clinical presentations.
• Genetic research is crucial for understanding and managing polydactyly.