送交者: 大胖星 于 2005-11-10, 14:54:03:
回答: Now I see. Thanks. 由 Latino2 于 2005-11-10, 14:37:21:
he can't show that the recovery did not happen spontaneously independent of the operation.
"As discussed in Chapter 1, a small number of patients with incomplete injuries and paraplegia recover some function, particularly bowel and bladder function, usually within the first year after the injury (Maynard et al., 1979; Ditunno et al., 2000). Thus, the potential for the recovery of function that is not due to the intervention complicates the interpretation of clinical trial results and necessitates careful attention to the matching of a control group and the population receiving the intervention".
In addition to that, there may also be other aspects of the operation which produce the recovery, such as the effect of training and even placebo.