FACET LOADS IN THE CANINE LUMBAR SPINE BEFORE AND AFTER DISK ALTERATION

被引：18

作者：

KAHMANN, RD

BUTTERMANN, GR

LEWIS, JL

BRADFORD, DS

机构：

[1] Biomechanics Laboratory, Department of Orthopaedic Surgery, University of Minnesota, Minneapolis, MN

来源：

SPINE | 1990年 / 15卷 / 09期

关键词：

Chymopapain; Contact; Disc; Facet; Load;

D O I：

10.1097/00007632-199009000-00025

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

The effect of externally applied spinal loads on facet mechanics before and after facet capsulectomy and disc alteration was investigated. Four control and four chymopapain- treated specimens were tested. Facet load and resultant load location were determined in the unaltered state, after facet capsulectomy, and after discectomy using a newly developed, noninvasive measurement technique. Resultant contact load locations shifted in a predictable manner. Caudal shift in contact locations occurred with chymopapain treatment or discectomy but was variable with capsulectomy. Facet load changed with applied load magnitude and direction; no significant change was noted after intradiscal chymopapain, discectomy, or capsulectomy. The significance of the lack of force change with disc narrowing is unknown. Perhaps, observed facet degeneration results from a change in the joint motion and contact location rather than change in facet load. © Lippincott-Raven Publishers.

引用

页码：971 / 978

页数：8

共 28 条

[1]

Adams M.A., Hutton W.C., The effect of posture on the role of the apophysial joints in resisting intervertebral compressive forces, J Bone Joint Surg, 62B, pp. 358-362, (1980)

[2]

Adams M.A., Hutton W.C., The mechanical function of the lumbar apophyseal joints, Spine, 8, pp. 327-330, (1983)

[3]

Badgley C.E., The articular facets in relation to low back pain and sciatic radiation, J Bone Joint Surg, 23, pp. 481-496, (1941)

[4]

Bradford D.S., Oegema T.R., Cooper K.M., Wakano K., Chao E.Y., Chymopapain, chemonucleolysis, and nucleus pulposus regeneration: A biochemical and biomechanical study, Spine, 9, pp. 135-147, (1984)

[5]

Bradford D.S., Swedenburg S.M., Carpenter R.J., HofmeisterF, Oegema TR Jr: Facet joint degeneration after surgical incision of the nucleus pulposus of mature dogs. Presented at the 33rd annual meeting of the Orthopaedic Research Society, San Francisco, California, January, pp. 19-22, (1987)

[6]

Buttermann G.R., Kahmann R.D., Lewis J.L., Bradford D.S., An experimental method for measuring force on the spinal facet joint: 1. Description and application of the method, J Biomechanical Engineering, (1989)

[7]

Cavanaugh J.M., El-Bohy A., Hardy W.N., Getchell T.V., Getchell M.L., Al K., Sensory innervation of soft tissues of the lumbar spine in the rat, J Orthop Res, 7, pp. 378-388, (1989)

[8]

Dunlop R.B., Adams M.A., Hutton W.C., Disc space narrowing and the lumbar facet joints, J Bone Joint Surg, 66B, pp. 706-710, (1984)

[9]

El-Bohy A.A., Al K., Intervertebral disc and facet contact pressure in axial torsion, Advances in Bioengineering, (1986)

[10]

Ghormley R.K., Low back pain with special reference to the articular facets with presentation of an operative procedure, JAMA, 101, pp. 1773-1777, (1983)

← 1 2 3 →