Minimum 5year follow-up of XXXX treated with discectomy and the Wallis interspinous device.

@entity1 @entity1643 @entity1347 @entity179 @entity717
UNASSIGNED: We evaluate the clinical effects and radiological findings of the Wallis interspinous device (Zimmer, Warsaw, IN, USA) for the treatment of @entity179 after a minimum 5year follow-up period. A total of 26 adult @entity1 underwent a primary discectomy followed by fixation of the segment with the Wallis interspinous device between December 2007 and August 2008. Twelve @entity1 and 14 @entity1 with an age range of 43 to 56years (average: 47.6) were included. The visual analogue scale (VAS) for @entity1643 , @entity717 Index (ODI), foraminal height (FH), anterior disc height (aDH) and posterior disc height (pDH), range of motion (ROM) and Pfirrmann grades were obtained and compared before and after surgery. The VAS and ODI significantly decreased postoperatively (p<0.05). The postoperative FH and pDH values increased significantly compared with the preoperative levels (p<0.01) and the increase in the FH and pDH values remained statistically significant during the follow-up period. There were no statistically significant changes in the aDH values before and after surgery (p>0.05). Also, there were no statistically significant changes in the ROM and Pfirrmann grade at the instrumented level and at the cephalad-adjacent segment (p>0.05). In our study, no @entity1 underwent further surgery because of a re-prolapse or progression of index level degeneration or @entity1347 . The Wallis interspinous device was a useful alternative for treating @entity179 and it offered a significant minimum 5year symptom control.
