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Table 2 Bibliographic analysis of clinical outcome studies with x-stop insertion for spinal stenosis

From: Surgical treatment of lumbar spinal stenosis with microdecompression and interspinous distraction device insertion. A case series

Study # of pts Type ofsurgery f-u time(months) Mean outcomes improvementat last follow-up Patient satisfaction domainof ZCQ (% of pts)
Kondrashov et al (JSDT 2006) [14] 18 x-stop only 51 29 (ODI) not reported
Shidiqui et al (Spine 2007) [22] 24 x-stop only 12 11 (ODI) 71
Zucherman et al (Spine 2005) [8] 93 x-stop only 24 45.4% (ZCQ symptom severity domain) 73.1
Brussee et al (Eur Spine J 2008) [23] 65 x-stop only 12 48.4% (ZCQ walking ability) 74.2
Kuchta et al (Eur Spine J 2009) [20] 175 x-stop only 24 12 (ODI) not reported
Ploumis et al 22 x-stop plusdecompression 27.4 30 (ODI) 90.9