Advances in Orthopedics

Review Article

Biomechanics of Disc Degeneration

Figure 10

Interspinous spacers. (a) Wallis system; (b) DIAM system; (c) X-stop; (d) Coflex [92].
726210.fig.0010a
(a)
726210.fig.0010b
(b)
726210.fig.0010c
(c)
726210.fig.0010d
(d)