▁and ▁alignment . ▁ ▁E DF ▁diff ers ▁from ▁Ris ser ▁casting . ▁E DF ▁cast s ▁are ▁either ▁over ▁or ▁under ▁the ▁shoulder , ▁and ▁have ▁a ▁large ▁m ush room ▁opening ▁on ▁the ▁front ▁to ▁allow ▁for ▁proper ▁ch est ▁expansion . ▁On ▁the ▁back , ▁there ▁is ▁a ▁small ▁cut out ▁on ▁the ▁conc av ity ▁of ▁the ▁curve , ▁not ▁going ▁past ▁the ▁mid line . ▁It ▁was ▁found ▁that ▁the ▁sp ine ▁became ▁more ▁aligned ▁with ▁this ▁cut out ▁than ▁without , ▁and ▁that ▁it ▁helped ▁correct ▁rotation . ▁ ▁Sp ica ▁cast ▁A ▁cast ▁that ▁includes ▁the ▁tr unk ▁of ▁the ▁body ▁and ▁one ▁or ▁more ▁lim bs ▁is ▁a ▁sp ica ▁cast , ▁just ▁as ▁is ▁a ▁cast ▁that ▁includes ▁the ▁" tr unk " ▁of ▁the ▁arm ▁and ▁one ▁or ▁more ▁fingers ▁or ▁the ▁thumb . ▁For ▁example , ▁a ▁shoulder ▁sp ica ▁includes ▁the ▁tr unk ▁of ▁the ▁body ▁and ▁one ▁arm , ▁usually ▁to ▁the ▁w rist ▁or ▁hand . ▁Should er ▁sp icas ▁are ▁almost ▁never ▁seen ▁today , ▁having ▁been ▁replaced ▁with ▁special ized ▁spl ints ▁and ▁sl ings ▁that ▁provide ▁early ▁mob ility ▁of ▁the ▁injury ▁to ▁avoid ▁joint ▁st iff ness ▁after ▁he aling . ▁ ▁A ▁hip ▁sp ica ▁includes ▁the ▁tr unk ▁of ▁the ▁body ▁and ▁one ▁or ▁more ▁legs . ▁A ▁hip ▁sp ica ▁that ▁covers ▁only ▁one ▁leg ▁to ▁the ▁an k le ▁or ▁foot ▁is ▁called ▁a ▁single ▁hip ▁sp ica , ▁while ▁one