Determination of the in vivo posterior loading environment of the Coflex interlaminar-interspinous implant

Spine Journal

Volumn 10, Issue 3, 2010, Pages 244-251

  Trautwein, Frank T ^a   Lowery, Gary L ^b   Wharton, Nicholas D ^c   Hipp, John A ^c   Chomiak, Robert J ^a  

^a Paradigm Spine GmbH   (Germany)

^b Paradigm Spine LLC   (United States)

^c Medical Metrics Inc   (United States)

Author keywords

Coflex; FEA; In vivo load; Interlaminar interspinous; Strength

Indexed keywords

BIOMECHANICS; CLINICAL TRIAL; COFLEX INTERLAMINAR INTERSPINOUS IMPLANT; COMPRESSIVE STRENGTH; CONTROLLED STUDY; FINITE ELEMENT ANALYSIS; HUMAN; IMAGE ANALYSIS; IMPLANT; IMPLANTATION; IN VIVO STUDY; LUMBAR SPINE; MAJOR CLINICAL STUDY; MULTICENTER STUDY; NON INVASIVE PROCEDURE; PRIORITY JOURNAL; RETROSPECTIVE STUDY; REVIEW; SCOLIOSIS; SPINAL CORD DECOMPRESSION; SPINE RADIOGRAPHY; SPONDYLOLISTHESIS; SURGICAL TECHNIQUE; VERTEBRAL CANAL STENOSIS; WEIGHT BEARING;

DECOMPRESSION, SURGICAL; ELASTICITY; EQUIPMENT FAILURE ANALYSIS; FINITE ELEMENT ANALYSIS; HUMANS; INTERNAL FIXATORS; MULTICENTER STUDIES AS TOPIC; PROSTHESES AND IMPLANTS; RANGE OF MOTION, ARTICULAR; RETROSPECTIVE STUDIES; SPINE; STRESS, MECHANICAL; WEIGHT-BEARING;

EID: 77649190431     PISSN: 15299430     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.spinee.2009.10.010     Document Type: Review

References (22)

1. Arnoldi C.C., Brodsky A.E., Cauchoix J., et al. Lumbar spinal stenosis and nerve root entrapment syndrome. Definition and classification. Clin Orthop 115 (1976) 4-5
2. Yong-Hing K., and Kirkaldy-Willis W.H. The pathophysiology of degenerative disease of the lumbar spine. Orthop Clin North Am 14 (1983) 501-503
3. Delamarter R.B., and Howard M. Lumbar spinal stenosis. Rehabilitation of the spine, science and practice. In: Hochschuler S., Cotler H., and Guyer R. (Eds) (1993), Mosby, Chicago 443-456
4. Deyo R.A., Rainville J., and Kent D.L. What can the history of physical examination tell us about low back pain?. JAMA 268 (1992) 760-765
5. Treatment of degenerative lumbar spinal stenosis. Summary, evidence report/technology assessment: number 32. AHRQ Publication No. 01-E047 (2001), Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/clinic/epcsums/stenosum.htm Available at:http://www.ahrq.gov/clinic/epcsums/stenosum.htm. Accessed February 15, 2006
6. Wiseman C.M., Lindsey D.P., Fredrick A.D., and Yerby S.A. The effect of an interspinous process implant on facet loading during extension. Spine 30 (2005) 903-907
7. Prasad P., and King A.I. An experimentally validated dynamic model of the spine. J Appl Mech 41 (1974) 546-550
8. Yerby SA, Lindsey DP, Kreshak J. Failure load of the lumbar spinous process. Transactions of the 47th Annual Meeting of the Orthopaedic Research Society; February 25-28, 2001; San Francisco, CA.
9. Shepherd D.E.T., Leahy J.C., Mathias K.J., et al. Spinous process strength. Spine 25 (2000) 319-323
10. Wenger D., Miller S., and Wilkerson J. Evaluation of fixation sites for segmental instrumentation of the human vertebrae. Orthop Trans 6 (1982) 23-24
11. Ochia R., and Ching R. Internal pressure measurements during burst fracture formation in human lumbar vertebrae. Spine 27 (2002) 1160-1167
12. White A., and Panjabi M. Clinical biomechanics of the spine. 2nd ed (1990), Lippincott Williams and Wilkins, Philadelphia
13. Benzel E. Biomechanics of spine stabilization: principles and clinical practice (1995), McGraw-Hill, Health Professions Division, New York, NY 4
14. Ettinger C, Kaddick C. Static axial compression test report no. 107.041117.30.261. Rosenheim, Germany: Endolab Mechanical Engineering, GmbH, July 5, 2005.
15. Trautwein FT. Finite element analysis report no. 2005.0021. Load deflection analysis on coflex™ implants. ACES Ing.-GmbH, Filderstadt, Germany, December 19, 2005.
16. Zhao K., Yang C., Zhao C., and An K.-N. Assessment of non-invasive intervertebral motion measurements in the lumbar spine. J Biomech 38 (2005) 1943-1946
17. Trautwein FT. Coflex™ load bearing capability. Paradigm Spine, GmbH Internal Memorandum, March 8, 2006.
18. Bernhart M, Ettinger C. Static axial compression bending test report no. 107.060227.30.372. Rosenheim, Germany: Endolab Mechanical Engineering, GmbH, March 1, 2006.
19. Wilke HJ, Heuer F, Häussler K, et al. Strain gauge measurements on the interspinous "U" coflex™, report no. 493-01, Ulm, Germany. Strain Gauges, September 2005.
20. Ettinger C, Kaddick C. Lateral wing bending fatigue test report no. 107.041117.30.261. Rosenheim, Germany: Endolab Mechanical Engineering, GmbH, March 1, 2005.
21. Ettinger C, Bernhart M. Dynamic compression bending test report no. 107.051123.30.353. Rosenheim, Germany: Endolab Mechanical Engineering, GmbH, March 7, 2006.
22. Zioupos P., Gresle M., and Winwood K. Fatigue strength of human cortical bone: age, physical, and material heterogeneity effects. J Biomed Mater Res A 86 (2008) 627-636