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.
Each extra dollar of GDP buys less and less social progress, which means GDP is becoming less useful as a guide to our development.. The desire to boost GDP is a self-fulfilling prophecy that results in our societies becoming engines to create more GDP... but we know that GDP is flawed.It ignores the environment.he desire to boost GDP is a self-fulfilling prophecy that results in our societies becoming engines to create more GDP... but we know that GDP is flawed. It ignores the environment.