At 2 years, patients in the fusion group showed a small but significant advantage of 5.7 points on the SF-36, with a mean score of 15.2, compared with patients in the decompression-only group (mean score, 9.5). However, the ODI scores, a secondary outcome measure in this study, were not significantly different between the two study groups, Dr. Ghogawala and his associates reported (N Engl J Med. 2016 April 13. doi: 10.1056/NEJMoa1508788).Surgical complications, blood loss, and length of stay all were significantly greater with fusion than with decompression alone.
Dr. Försth’s study was supported by Uppsala University, Uppsala County Council, the Stockholm Spine Center, and Johnson & Johnson. Two of his associates reported ties to Medtronic and Quantify Research. Dr. Ghogawala’s study was supported by the Jean and David Wallace Foundation, the Greenwich Lumbar Stenosis SLIP Study Fund. His associates reported ties to numerous industry sources.