▁secure ▁the ▁ro ds ▁onto ▁either ▁side ▁of ▁the ▁sp ine . ▁On ▁the ▁internal - f acing ▁side ▁of ▁the ▁sp ine , ▁lig aments ▁( which ▁can ▁be ▁too ▁short , ▁pulling ▁the ▁sp ine ▁into ▁its ▁ab normal ▁shape ) ▁must ▁be ▁surg ically ▁cut ▁or ▁released , ▁not ▁only ▁stopping ▁part ▁of ▁the ▁cause ▁of ▁the ▁k y ph osis , ▁but ▁also ▁allowing ▁the ▁tit an ium ▁ro ds ▁to ▁pull ▁the ▁sp ine ▁into ▁a ▁more ▁natural ▁position . ▁The ▁dam aged ▁disc s ▁between ▁the ▁trouble d ▁verte bra e ▁( wed ged ▁verte bra e ) ▁are ▁normally ▁removed ▁and ▁replaced ▁with ▁b one ▁gra ft ing ▁from ▁the ▁hip ▁or ▁other ▁parts ▁of ▁the ▁verte bra e , ▁which ▁once ▁he aled ▁or ▁" f used " ▁will ▁solid ify . ▁The ▁tit an ium ▁instrument ation ▁holds ▁everything ▁in ▁place ▁during ▁he aling . ▁The ▁patient ▁can ▁expect ▁to ▁remain ▁in ▁hospital ▁for ▁minimum ▁of ▁a ▁week , ▁and ▁possibly ▁longer . ▁They ▁may ▁then ▁be ▁required ▁to ▁wear ▁a ▁bra ce ▁for ▁several ▁months ▁more ▁to ▁ensure ▁the ▁sp ine ▁he als ▁appropri ately . ▁The ▁tit an ium ▁instrument ation ▁may ▁stay ▁in ▁the ▁body ▁perman ently , ▁or ▁be ▁removed ▁years ▁later . ▁Pat ients ▁who ▁have ▁under g one ▁such ▁surg ery ▁may ▁need ▁physical ▁ther apy ▁to ▁manage ▁pain ▁and ▁mob ility . ▁Rec overy ▁can ▁be ▁prolong ed : ▁typically ▁patients ▁are ▁not ▁allowed ▁to ▁lift ▁anything