Simpson grade
Updates to Article Attributes
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was changed:
The Simpson grade of meningioma resection was described in 1957 and correlated the degree of surgical resection completeness with with symptomatic recurrence 1.
Although the type of resection still plays a part in the likelihood of symptomatic recurrence, other factors (such as the MIB-1 index) are also important, particularly in grades I - III 2.
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Gradegrade I- complete removal including resection of underlying bone and associated dura
- 9% symptomatic recurrence at 10 years
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Gradegrade II- complete removal and coagulation of dural attachment
- 19% symptomatic recurrence at 10 years
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Gradegrade III- complete removal w/o resection of dura or coagulation
- 29% symptomatic recurrence at 10 years
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Gradegrade IV- subtotal resection
- 44% symptomatic recurrence at 10 years
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Gradegrade V- simple decompression with or without biopsy
- 100% symptomatic recurrence at 10 years (small sample in original paper)
-<strong>Grade I</strong><ul>- +<strong>grade I</strong><ul>
-<strong>Grade II</strong><ul>- +<strong>grade II</strong><ul>
-<strong>Grade III</strong><ul>- +<strong>grade III</strong><ul>
-<strong>Grade IV</strong><ul>- +<strong>grade IV</strong><ul>
-<strong>Grade V</strong><ul>- +<strong>grade V</strong><ul>
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