Article Figures & Data
Figures
- Figure 1
New nucleus prosthesis made of knitted titanium filaments.
- Figure 2
(a) The new nucleus prosthesis was implanted after anterior fenestration of the annulus fibrosus. (b) Two lateral annulus flaps were created and sutured after implantation.
- Figure 3
Range of motion in flexion and extension in the intact condition, after implantation, and during and after cyclic loading. The border between the light and dark parts of each bar represents the median lordotic tilt caused by implantation and cyclic loading. Median with range is shown.
* P < 0.05 compared to the intact condition.
- Figure 4
Range of motion in flexion and extension in the intact condition, after implantation, and during and after cyclic loading. The border between the light and dark parts of each bar represents the median lordotic tilt caused by implantation and cyclic loading. Median with range is shown.
* P < 0.05 compared to the intact condition.
- Figure 5
Range of motion in axial rotation in axial rotation in the intact condition, after implantation, and during and after cyclic loading. Median with range is shown.
* P < 0.05 compared to the intact condition.
- Figure 6
(a)Lateral radiograph of one of the six specimens directly after implantation. (b)After complex cyclic loading the position of the prosthesis is almost the same as before, yet a slight migration in anterior direction is observable.
Tables
Axial deformation, mm Median Minimum Maximum Intact -0.4 -0.5 -0.2 After implantation -0.4 -0.4 -0.3 After 20,000 cycles -0.3 -0.4 -0.3 After 40,000 cycles -0.3 -0.4 -0.3 After 60,000 cycles -0.3 -0.4 -0.3 After 100,000 cycles -0.3 -0.4 -0.3 Height change, mm Median Minimum Maximum Intact 0 0 0 After implantation 0 1.2 -0.3 After 20,000 cycles -0.5 1.3 -1.3 After 40,000 cycles -0.6 1 -1.4 After 60,000 cycles -0.6 1.1 -1.4 After 100,000 cycles -0.7 0.9 -1.5
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