Primary Objective:

To evaluate the rate of re-operation during the first 5 years following the fitting of lumbar total disk replacement at the operated level and / or floors above and / or underlying, whatever the reasons

Secondary objectives:

The secondary objectives are:

• Describe the reasons for re-interventions operated floor and / or (x) level (s) adjacent (s)
• Describe the evolution of the function with the functional Oswestry score
• Describe the evolution of lumbar radicular pain by visual analog scale (VAS)
• Describe the evolution of the quality of life assessed by the SF12 score
• Describe the evolution of work status
• Describe patient satisfaction
• Describe the complications (intraoperative, early postoperative (within 3 months of surgery), late, death)

Inclusion Criteria:

• Patient who needs, according to his surgeon, a PTDL placement and has given his consent for the PTDL placement
• Patient who agrees to participate in the observational study after information by the surgeon
• Patient living in France and having the ability to respond alone to the questionnaire

Exclusion Criteria:

• None

Analysis of the first 600 patients implanted with a PTDL (first 200 prostheses implanted for each laboratory involved in the observational study): Medtronic, LDR Médical et Synthes SAS) during an estimated inclusion period from 6 to 18 months and a follow-up period of 5 years.

An additional follow-up from 3 to 5 years will be envisaged in a protocol amendment if requested by Authorities.