Cortical Bone Trajectory With Patient Guide

Adult patients affected by degenerative disc disease, meeting all inclusion/exclusion criteria, will be proposed to take part to the current post-marketing surveillance study during their pre-operative visit. They will be provided with an information letter and, in case of acceptance to participate to the study, asked to sign a consent form.

After enrolment, each patient will be monitored for 13 months. Data concerning demography, preoperative clinical conditions, surgical details including device implanted and complications occurred, postoperative clinical and/or radiological assessments (as per standard routine at 5 weeks, 3, 7 and 13 months) will be prospectively collected. The level of bone fusion will be evaluated with a postoperative CT scan at 7 ±2 months follow-up

Inclusion criteria

• those affected by degenerative disc disease needing a surgical treatment one/two levels with posterior approach to screw fixation
• those who need a surgical procedure of lumbar spine stabilization according to Medacta device instruction for use from level L2 to level S1
• those who signed consent form to participate to the study
• Normal healthy patients or with mild systematic disease identified as patients with ASA score 1 or 2
• Patients with BMI ≤ 35 kg/m2
• non responsive or unsufficient resposive to non -invasive treatment such as analgesics

Exclusion criteria

• Patients affected by lytic lystesis and degenerative lystesis with grade≥2 will be excluded
• Patients <18 years
• Patient who is pregnant or intends to become pregnant during the study
• Known substance or alcohol abuse