Posterior Transpedicular Dynamic Stabilization versus Total Disc Replacement in the Treatment of Lumbar Painful Degenerative Disc Disease: A Comparison of Clinical Results

Table 3

(a) The comparison of ODI scores. (b) The comparison of decrease % in follow-up OSW data.

(a)  

ODI		TDR (𝑛=25)	PTDS (𝑛=25)	^a𝑃
Preop ODI	Min–Max	40–100	46–98	0.847
	Mean ± SD	67.20±20.79	66.16±16.82
ODI (3 months)	Min–Max	12–56	12–38	0.069
	Mean ± SD	32.32±10.87^‡	27.16±8.63^‡
ODI (12 months)	Min–Max	4–34	2–26	0.010*
	Mean ± SD	18.00±7.64^‡	12.88±5.75^‡
ODI (24 months)	Min–Max	2–20	2–18	0.408
	Mean ± SD	9.12±4.28^‡	8.04±4.53^‡
	^b𝑃	0.001**	0.001**

^aStudent’s 𝑡-test, ^brepeated measures test.
^‡Adjustment for multiple comparisons: Bonferroni 𝑃<0.01.
^∗𝑃<0.05, ^∗∗𝑃<0.01.

(b)  

ODI (decrease %)	TDR (𝑛=25)	PTDS (𝑛=25)	𝑃
	Mean ± SD	Mean ± SD
Preop * ODI (3 months)	49.96±16.46	54.91±20.00	0.669
Preop * ODI (12 months)	72.80±9.33	78.22±11.68	0.093
Preop * ODI (24 months)	86.15±6.15	86.33±8.92	0.808

Mann-Whitney 𝑈 test.