*'''Ultrasonography of hip dysplasia''' is generally the investigation of choice at up to 4 months due to limited ossification of the skeleton.<ref name=acr/><ref group="notes" name=surveillance/>
*'''[[X-ray of hip dysplasia]]''' is generally the initial imaging of choice thereafter.<ref name=acr/><ref group="notes" name=surveillance/>
</ref> <noinclude>{{Bottom}}</noinclude>