RESULTS: A total of 2144 patients were reviewed, and 74 were found to have dural tears occurring during or before surgery. Incidental durotomy occurred at the time of surgery in 66 patients (3.1% overall incidence).Incidence varied according to the specific procedure performed but was highest in the group that underwent revision surgery.ncidental durotomy occurred at the time of surgery in 66 patients (3.1% overall incidence). Incidence varied according to the specific procedure performed but was highest in the group that underwent revision surgery.
âGDP is a flawed measure of human welfareâ. GDP has always been a measure of output, not of welfare. Using current prices, it measures the value of goods and services produced for final consumption, private and public, present and future.n a recent paper submitted as evidence to the LSEâs Growth Commission, I consider three common criticisms of GDP as a target of policy and explain why I think they are wrong (Oulton, 2012a): 1  The first criticism is that GDP is hopelessly flawed as a measure of human welfare.
(Answer #1). GDP itself can't really tell us about the health and growth of the economy, but Real GDP can. Nominal GDP isn't that useful for telling us about the health of the economy because it cannot really be compared to the GDP of previous years.Changes in the price level make nominal GDP an inaccurate indicator of change.Answer #1). GDP itself can't really tell us about the health and growth of the economy, but Real GDP can. Nominal GDP isn't that useful for telling us about the health of the economy because it cannot really be compared to the GDP of previous years.