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Table 3 Disc stresses at cephalic adjacent levels

From: Application of an interspinous process device after minimally invasive lumbar decompression could lead to stress redistribution at the pars interarticularis: a finite element analysis

Motion

Model

L2-L3 (KPa)

L3-L4 (KPa)

Flexion

INT

526.09 (100%)

460.33 (100%)

DEF

522.81 (99%)

661.07 (144%)

DIAMUNI

522.52 (99%)

586.25 (127%)

DIAMBIL

522.32 (99%)

586.73 (127%)

Extension

INT

286.53 (100%)

268.49 (100%)

DEF

278.51 (97%)

355.57 (132%)

DIAMUNI

291.74 (95%)

300.28 (112%)

DIAMBIL

297.33 (104%)

305.06 (114%)

Lateral Bending

INT

259.94 (100%)

252.93 (100%)

DEF

339.27 (131%)

269.63 (107%)

DIAMUNI

223.58 (86%)

266.84 (105%)

DIAMBIL

255.59 (98%)

306.49 (121%)

Torsion

INT

261.88 (100%)

262.09 (100%)

DEF

228.72 (87%)

313.92 (120%)

DIAMUNI

245.63 (94%)

324.00 (124%)

DIAMBIL

244.96 (94%)

323.05 (123%)

  1. The percentages indicate the disc stresses of all the models normalized by the corresponding disc stresses of the INT model