Table 3

Change in segmental disc parameters

Region	Preop rim index	Preop rim area (mm²)	3 month rim area (mm²)	1 year rim area (mm²)	2 year rim area (mm²)	p Value at 2 years
Temporal	0.55	0.127 (0.073)	0.131 (0.073)	0.128 (0.072)	0.133 (0.079)	0.258
Superotemporal	0.53	0.097 (0.057)	0.103 (0.062)	0.104 (0.062)	0.105 (0.064)	0.007
Inferotemporal	0.48	0.099 (0.068)	0.101 (0.068)	0.101 (0.071)	0.106 (0.071)	0.131
Nasal	0.72	0.297 (0.119)	0.302 (0.116)	0.302 (0.118)	0.311 (0.122)	0.185
Superonasal	0.63	0.137 (0.054)	0.140 (0.058)	0.142 (0.061)	0.144 (0.063)	0.035
Inferonasal	0.66	0.145 (0.065)	0.149 (0.066)	0.151 (0.066)	0.154 (0.070)	0.024
Region	Preop rim index	Preop rim volume (mm³)	3 month rim volume (mm³)	1 year rim volume (mm³)	2 year rim volume (mm³)	p Value at 2 years
Temporal	0.55	0.009 (0.007)	0.010 (0.009)	0.010 (0.009)	0.013 (0.021)	0.218
Superotemporal	0.53	0.018 (0.014)	0.020 (0.016)	0.021 (0.017)	0.024 (0.023)	0.002
Inferotemporal	0.48	0.018 (0.016)	0.018 (0.018)	0.019 (0.020)	0.022 (0.023)	0.012
Nasal	0.72	0.064 (0.044)	0.069 (0.047)	0.069 (0.049)	0.079 (0.053)	<0.001^*
Superonasal	0.63	0.032 (0.019)	0.034 (0.020)	0.036 (0.022)	0.039 (0.025)	<0.001^*
Inferonasal	0.66	0.037 (0.030)	0.039 (0.030)	0.040 (0.032)	0.045 (0.032)	0.002
Region	Preop rim index	Preop max depth cup (mm)	3 month max depth cup (mm)	1 year max depth cup (mm)	2 year max depth cup (mm)	p Value at 2 years
Temporal	0.55	0.622 (0.212)	0.601 (0.198)	0.595 (0.195)	0.589 (0.203)	0.008
Superotemporal	0.53	0.690 (0.219)	0.669 (0.207)	0.665 (0.209)	0.666 (0.218)	0.064
Inferotemporal	0.48	0.620 (0.213)	0.596 (0.195)	0.594 (0.193)	0.602 (0.205)	0.225
Nasal	0.72	0.611 (0.242)	0.599 (0.230)	0.574 (0.234)	0.575 (0.238)	0.011
Superonasal	0.63	0.685 (0.230)	0.670 (0.220)	0.664 (0.229)	0.671 (0.237)	0.372
Inferonasal	0.66	0.607 (0.225)	0.582 (0.210)	0.570 (0.207)	0.575 (0.211)	0.087

Figures are means (SD). Asterisk represents difference significance to predefined level p<0.001(Wilcoxon ranks test).