Recurrence rates by Simpson Grading System for Removal of Meningiomas - Statistics

General Stats

Answer Stats

Grade	Answer	Definition	% Correct
2	19	macroscopically complete with endothermy coagulation (electrocauteryor laser) of dural attachment	100%
3	29	macroscopically complete without resection or coagulation of dural attachment or of its extradural extensions (e.g.,hyperostoticbone)	100%
4	44	partial removal leaving tumor insitu	100%
1	9	Complete removal with excision of dural attachment and abnormal bone (includingsinusresectionwheninvolved)	100%
5	n/a	simplede compression (±biopsy)	100%

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