The Interspinous Spacer: A New Posterior Dynamic Stabilization Concept for Prevention of Adjacent Segment Disease

Table 1

Number of cases in correlation with disease and sex.

Number of cases	Pathology	Male/female; ratio
36	Biforaminal stenosis	24/12
15	Ligamentum flavum hypertrophy	8/7
6	Suspended vertebrae	4/2
3	Facet syndrome	0/3
47	Adjacent syndrome	28/19
27	Adjacent syndrome prevention	12/15