Short Stature: Raising a Child With the Most Common Form of Dwarfism-Achondroplasia

Understanding the Most Common Form of Dwarfism

Achondroplasia is the most common form of disproportionate short stature (dwarfism), affecting approximately 1 in 25,000 live births worldwide. It's caused by a specific mutation in the FGFR3 gene that slows bone growth in the long bones. The majority of cases (80%) are new (de novo) mutations — neither parent has achondroplasia. Intelligence is not affected.

Recognising Achondroplasia

• Short limbs (especially upper arms and thighs) with average-size trunk
• Enlarged head (macrocephaly) with prominent forehead
• Midface hypoplasia (flat nasal bridge)
• Average intelligence — achondroplasia does not affect cognitive development

Medical Issues to Monitor Actively

• Foramen magnum stenosis — the opening at the base of the skull can compress the brainstem; requires MRI screening in infancy. A neurosurgical emergency if compression is significant
• Sleep apnoea — extremely common due to midface anatomy; sleep study should be performed
• Middle ear dysfunction and hearing loss — recurrent otitis media is very common; hearing assessment needed
• Spinal stenosis — lumbar stenosis causes leg pain and weakness in adults

Support in Nigeria

FXMed can provide comprehensive developmental health monitoring, nutrition optimisation, sleep assessment, and coordination with neurosurgery, ENT, and orthopaedics for the specific complications of achondroplasia. Contact our services team for a personalised care pathway.

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