Comparison of polymethylmethacrylate versus expandable cage in anterior vertebral column reconstruction after posterior extracavitary corpectomy in lumbar and thoraco-lumbar metastatic spine XXXX .

@entity1 @entity4625 @entity5 @entity190 @entity1513 @entity158 @entity85
Single-stage posterior corpectomy for the management of @entity5 has been well described. Anterior column reconstruction has been accomplished using polymethylmethacrylate ( @entity4625 ) or expandable cages (EC). The aim of this retrospective study was to compare @entity4625 versus ECs in anterior vertebral column reconstruction after posterior corpectomy for @entity5 in the lumbar and thoracolumbar spine. Between 2006 and 2009 we identified 32 @entity1 that underwent a single-stage posterior extracavitary @entity5 resection and anterior reconstruction, 16 with @entity4625 and 16 with EC. There were no baseline differences in regards to age (mean: 58.2  years) or performance status. Differences between groups in terms of survival, estimated @entity190 (EBL), @entity1513 reduction (decrease in Cobb's angle), @entity158 , functional outcomes, and performance status were evaluated. Mean overall survival and EBL were 17  months and 1165  ml, respectively. No differences were noted between the study groups in regards to survival (p  =  0.5) or EBL (p  =  0.8). There was a trend for better @entity1513 reduction in favor of the EC group (10.04 vs. 5.45, p  =  0.16). No difference in performance status or VAS improvements was observed (p  >  0.05). Seven @entity1 had complications that led to reoperation (5 infections). @entity4625 or ECs are viable options for reconstruction of the anterior vertebral column following @entity5 resection and corpectomy. Both approaches allow for correction of the @entity85 , and stabilization of the anterior vertebral column with similar functional and performance status outcomes in the lumbar and thoracolumbar area.
