Posterior Dynamic Stabilization with Limited Rediscectomy for Recurrent Lumbar Disc Herniation

Table 3

Radiographic outcomes.

	Preoperative	3 months	Last follow-up	F
Lordosis at instrumented segment (°)	8.0 ± 4.2	6.8 ± 2.4	7.0 ± 2.6	2.379	0.104
Disc height at instrumented segment (mm)	10.4 ± 1.9	9.3 ± 1.9	9.1 ± 1.8	57.562	0.001
ROM at instrumented segment (°)	6.4 ± 3.2	4.0 ± 0.9	4.2 ± 0.6	12.578	0.001
ROM at the 1^st proximal segment (°)	9.0 ± 3.9	9.5 ± 2.8	9.9 ± 2.6	1.969	0.151
ROM at L1-S1 (°)	34.1 ± 13.1	29.2 ± 6.8	34.8 ± 10.5	4.496	0.016