Lumbar Prosthesis

The lumbar prosthesis

LP-ESP

The LP-ESP cervical disc prosthesis has been developped to mimic the natural lumbar disc and allow the spine to behave as if the replaced disc would be natural in all situations.

Specifics

  • Over 10 years of research and development
  • 10 years of follow up (since 2004)
  • 6° of freedom
  • Adaptive center of rotation
  • No surface bearing for an increased lifetime
  • Improved stability
  • shock absorbing
  • Designed to fit and restore patient lordosis
lp-esp

How the LP-ESP prosthesis has been engineered

Structure of the natural lumbar disc

  • Inner core (nucleus pulposus)
  • Outer core (annulus fibrosis)

Structure of the LP-ESP® lumbar prosthesis

  • Titanium endplates 
TA 6V ISO 583213 and hydroxyapatite coating
  • Inner core (Silicone nucleus)
  • Outer core (Polycarbonate urethane annulus)
lp-esp-gauche
lp-esp-droite
lp-rotation

Six degrees of freedom restore your “natural” mobility.

  • Lateral flexion
  • Vertical translation
  • Lateral translation
  • Flexion/extension
  • Anterior-posterior translation
  • Axial rotation

Indications for use

  • Lumbar discopathy that is resistant to medical treatment
  • Lumbar discopathy disease after treatment of a herniated disc
  • Radiculopathy due to a recurrenced of a disc hernia
(except for excluded hernias sequestered herniated disc)

Designed to reproduce natural properties

Natural Disc LP-ESP
Flexion(A/P) & Extension 2.6 to 4.7 Nm per degree 2Nm per degree
Lateral inclination 5 º 3.5 º
Translation YES YES
Axial rotation 4 to 6 Nm per degree 2 Nm per degree
Axial compression 1500 to 3000 N per mm 2 Nm per degree
Elastic return YES YES

LP-ESP Sizes

References Designations
255682 Inclination 7° height 10
255683 Inclination 7° height 12
255687 Inclination 9° height 10
255688 Inclination 9° height 12
255690 Inclination 11° height 10
255691 Inclination 11° height 12

Surgical procedure

The procedure is performed under general anesthesia. An x-ray is taken in order to precisely determine and mark the vertebral level of surgery and the site for accessing the lumbar spine. A midline (transperitoneal or retroperitoneal) approach is used to access the site.

Once the site has been accessed, the affected disc is removed and the disc compartment is prepared for the implantation of the LP-ESP®. The correct level of the spine is determined and then the implant is inserted.

Once the LP-ESP® has been implanted, another x-ray is performed in order to ensure that the prosthesis is seated properly and is at the right level in the disc compartment. The wound is then closed and after a short recovery period, you can start to resume your regular activities and return to your everyday routine.

Recovery and a relaxed life after the procedure.