Abd el Bagi developed a staging system for myectoma of the foot based on its extent in a radiograph. The author is from Military Hospital in Riyadh, Kingdom of Saudi Arabia.
Parameters:
(1) effect and pattern of spread
(2) bone involvement
Extent
Bone Involvement
Stage
limited to entry site with soft tissue swelling
none
0
expanding granuloma with displacement or scalloping
none
I
impending bone invasion
periosteal reaction or reactive sclerosis
II
NA
localized bone invasion involving a single bone with erosion or cavitation
III
variable joint involvement
longitudinal spread along a single ray
IV
invasion into adjacent structures with horizontal spread
localized to a foot region (fore, mid, hind)
V
multidirectional spread with total disruption
extensive involving multiple rays and rows
VI
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