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This
stage is characterised by partial or complete dislocation
upon the first metatarsal head.
This
example shows stage 4 hallux abducto valgus (complete dislocation)
despite an earlier attempt at reconstruction utilising joint
arthroplasty. The fractured remnants of silicon hemi implants
can be seen. Surgical resection of the lesser metatarsal
heads has also been performed
Note:
Given the substantial surgical interventions, these radiographs
are not
the best examples of the 4th stage of HAV.
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