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Table 3 Time schedule for collection of data for the NORDSTEN/DS trial

From: Decompression alone versus decompression with instrumental fusion the NORDSTEN degenerative spondylolisthesis trial (NORDSTEN-DS); study protocol for a randomized controlled trial

  Before operation Hospital stay 3 months 12 months 2 years 5 years 10 years
X-rays x   x   x x x
MRI scan x       
CT scan      x   
Demographics x       
Lifestyles x       
PROMs x   x x x x x
Operation data   x      
Data from hospital stay   x      
Complications, and reoperations   x x x x x x
  1. MRI Magnetic resonance imaging, CT Computed tomography, PROMs Patient reported outcome measures