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

Table 4

The comparison of LL angles.

LL		TDR (𝑛=25)	PTDS (𝑛=25)	^a𝑃
Preop LL	Min–Max	25–65	34–72	0.948
	Mean ± SD	49.60±10.46	49.80±11.26
LL (3 months)	Min–Max	26–65	34–69	0.747
	Mean ± SD	49.52±9.51	48.60±10.52
LL (12 months)	Min–Max	24–64	30–67	0.764
	Mean ± SD	49.60±10.15	48.72±10.50
LL (24 months)	Min–Max	22–65	35–65	0.786
	Mean ± SD	49.56±10.38	48.80±9.30
	^b𝑃	0.998	0.890

^aStudent’s 𝑡-test, ^brepeated measures test.
LL: lumbar lordosis.