Mechanical Properties of Lumbar Spinal Motion Segments as Affected by Partial Disc Removal

Vk, Goel; Nishiyama, Kazuo; Jn, Weinstein; Yk, Liu

doi:10.1097/00007632-198612000-00007

Cited by 129 publications

(47 citation statements)

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“…These results are similar to previous reports [15][16][17][18] Clinical improvement also is similar in both groups but is better in FE IL group and is nearly 90% of excellent clinical outcome, which exceeds the good results of the microscopic-assisted procedures reported between 75 and 100% of the cases. These results are also corresponding to the other studies [15,18], but with less resection of spinal canal structures [18][19][20][21][22][23][24][25]. Operation time, tissue traumatization and complications are low compared to conventional procedures [26][27][28][29][30][31][32][33][34].…”

Section: Discussionsupporting

confidence: 87%

Full-Endoscopic Interlaminar Versus Microsurgical Operations in Lumbar Compressive Lesions Surgery: Prospective Randomized Trial of Overall 570 Patients

Marković¹,

Živković²,

Ruetten³

et al. 2017

J Pain Relief

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Section: Discussionsupporting

confidence: 87%

Full-Endoscopic Interlaminar Versus Microsurgical Operations in Lumbar Compressive Lesions Surgery: Prospective Randomized Trial of Overall 570 Patients

Marković¹,

Živković²,

Ruetten³

et al. 2017

J Pain Relief

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“…These changes include decreased pressure, decreased disc height, increased deformation and flexibility, and increased annulus bulging. 6,15,21,29,42,46,49 However, the mechanical differences between limited and radical nucleotomy are not well established. Limited nucleotomy of a healthy disc is followed by swelling and redistribution of remaining tissue, which may restore mechanical behavior.…”

Section: Introductionmentioning

confidence: 99%

Trans-Endplate Nucleotomy Increases Deformation and Creep Response in Axial Loading

et al. 2006

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Knowledge of the functional role of the nucleus pulposus is critical for the development and evaluation of disc treatment strategies to restore mechanical function. While previous motion segment studies have shown that nucleotomy alters disc mechanics, disruption of the annulus fibrosus may have influenced these experiments. The objective of this study was to determine the mechanical role of the nucleus pulposus in support of axial loads via a trans-endplate nucleotomy procedure. Sheep motion segments were randomly assigned to three groups: control, limited nucleotomy, and radical nucleotomy. Mechanical testing consisted of 20 cycles of compression-tension, a 1-h creep, and a slow constant-rate compressive ramp test. Nucleotomy led to increased axial deformations, in particular an elongated neutral zone, a greater range of motion, and altered creep behavior. In general, the elastic properties exhibited a graded response with respect to the amount of nucleus material removed. This graded effect can be attributed to swelling of the nucleus pulposus in the limited nucleotomy group, whereas little swelling was observed in the radical group. The findings of the present study indicate that functional evaluation of nucleus pulposus replacements and disc implants should include range of motion measures (including neutral zone) and viscoelastic creep experiments in addition to considering compressive stiffness.

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“…5,18,19) And, in the case of recurrence in the same level-contralateral side as well, the weakening of the annulus fibrosus can result during a disc discectomy on the contralateral side of the operated side, and this can impact the stability of the segment. 16 …”

Section: Discussionmentioning

confidence: 99%

Clinical Results about More than 5 Years Follow-up after Open Discectomy

Soh

Lee

Goo

et al. 2011

J Korean Soc Spine Surg

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Mechanical Properties of Lumbar Spinal Motion Segments as Affected by Partial Disc Removal

Cited by 129 publications

References 0 publications

Full-Endoscopic Interlaminar Versus Microsurgical Operations in Lumbar Compressive Lesions Surgery: Prospective Randomized Trial of Overall 570 Patients

Full-Endoscopic Interlaminar Versus Microsurgical Operations in Lumbar Compressive Lesions Surgery: Prospective Randomized Trial of Overall 570 Patients

Trans-Endplate Nucleotomy Increases Deformation and Creep Response in Axial Loading

Clinical Results about More than 5 Years Follow-up after Open Discectomy

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