Experimental lumbar instability and artificial ligament

  • G. Voydeville
  • A. Diop
  • F. Lavaste
  • F. Girard
  • Ph. Hardy
Original articles


This biomechanical study investigates the efficiency of a new procedure of destabilization at the L4/L5 spinal unit, as well as the effect of a new system to stabilize it.

The instability is effective in backward-forward and in lateral bending (p < 0.05), and the neutral zone is increased in backward-forward and in axial rotation (p < 0.05).

The artificial ligament and its wedge stabilize the cut spine, and is effective in backward-forward and in lateral bending (p < 0.05).

Key words

Destabilization Stabilization Polyester Lumbar spine Ligament 


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Copyright information

© Springer-Verlag 2000

Authors and Affiliations

  • G. Voydeville
    • 1
  • A. Diop
    • 2
  • F. Lavaste
    • 2
  • F. Girard
    • 3
  • Ph. Hardy
    • 4
  1. 1.Clinique Ste-ThérèseVandoeuvre les NancyFrance
  2. 2.Laboratoire de BiomécaniqueENSAMParisFrance
  3. 3.SIMES, Centre d'Etudes StatistiquesHôpital MarinNancyFrance
  4. 4.Hôpital A. ParéCHUBoulogneFrance

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