Studies should be of a prospective, cohort design to minimise the occurrence of errors associated with recall, which is a problem with retrospective study designs ... for each player must be recorded.

Like all retrospective studies, data collection procedures were discordant among the Groups, complicating the analyses; nevertheless, our study objective is to raise awareness of this very poor ...

However, a new retrospective study shows ... scoliosis continues to be defined, the data from this study supports the fact that this surgical procedure should be considered as a treatment option ...