Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Primary |
LISA implant survival rate 2 years after surgery defined as successful LISA implantation without reoperation, revision, or removal/ ODI change between pre-operative assessment and 2 years follow-up (FU)/ 1ary endpoint will also be evaluated at 1-year FU |
|
24-months post surgery; 12-months post surgery |
|
Secondary |
LISA implant survival rate defined as successful LISA implantation without reoperation, revision, or removal |
|
3-months post surgery; 6-months post surgery; 48-months post surgery; 72-months post surgery |
|
Secondary |
Duration of the surgery |
|
Perioperative |
|
Secondary |
Duration of the implant placement |
|
Perioperative |
|
Secondary |
Amount of blood loss |
|
Perioperative |
|
Secondary |
Scoring of the surgical technique assessed by a 14-items question |
14 steps of the surgical technique are rated from 0 to 7; 0 being considered as very easy and 7 being considered as very difficult |
Perioperative |
|
Secondary |
Number of hospitalization days |
|
3-months post surgery |
|
Secondary |
Time to return to normal activity (working) depending on the patient's profession (blue collar, white collar) |
|
3-months post surgery |
|
Secondary |
Number of patients with reoperations/ revision or removal at the operative level or on adjacent levels relating to the device and not the pathology/ implant breakage (polyester band rupture) |
|
3-months post surgery; 6-months post surgery; 12-months post surgery; 24-months post surgery; 48-months post surgery; 72-months post surgery |
|
Secondary |
Number of patients with migration or rupture of any implant component (Polyester band loose)/ major unanticipated device related complications/ post-operative scapular pain/ recurrence of the initial symptoms/ degeneration of the adjacent segments |
|
3-months post surgery; 6-months post surgery; 12-months post surgery; 24-months post surgery; 48-months post surgery; 72-months post surgery |
|
Secondary |
Number of patients with superficial infection/ dural injury/ bone fracture or bone erosion anywhere implant is in contact with the anatomy/ Any other procedure or device related adverse events |
|
3-months post surgery; 6-months post surgery; 12-months post surgery; 24-months post surgery; 48-months post surgery; 72-months post surgery |
|
Secondary |
Oswestry Disability Index (ODI) to assess limitations of various activities of daily living. |
|
Pre-operative |
|
Secondary |
Change from baseline in Oswestry Disability Index at 3 months |
Oswestry Disability Index (ODI) is used to assess limitations of various activities of daily living. |
3-months post surgery |
|
Secondary |
Change from baseline in Oswestry Disability Index at 6 months |
Oswestry Disability Index (ODI) is used to assess limitations of various activities of daily living. |
6-months post surgery |
|
Secondary |
Change from baseline in Oswestry Disability Index at 48 months |
Oswestry Disability Index (ODI) is used to assess limitations of various activities of daily living. |
48-months post surgery |
|
Secondary |
Change from baseline in Oswestry Disability Index at 72 months |
Oswestry Disability Index (ODI) is used to assess limitations of various activities of daily living. |
72-months post surgery |
|
Secondary |
Visual Analogue Scale (VAS) to assess back pain |
Patients rate their back pain from 0 to 10, "0" meaning "No pain at all" and "10" meaning "the worst pain ever possible" |
Pre-operative |
|
Secondary |
Change from baseline in Visual Analogue Scale (VAS) for back pain at 3 months |
|
3-months post surgery |
|
Secondary |
Change from baseline in Visual Analogue Scale (VAS) for back pain at 6 months |
|
6-months post surgery |
|
Secondary |
Change from baseline in Visual Analogue Scale (VAS) for back pain at 12 months |
|
12-months post surgery |
|
Secondary |
Change from baseline in Visual Analogue Scale (VAS) for back pain at 24 months |
|
24-months post surgery |
|
Secondary |
Change from baseline in Visual Analogue Scale (VAS) for back pain at 48 months |
|
48-months post surgery |
|
Secondary |
Change from baseline in Visual Analogue Scale (VAS) for back pain at 72 months |
|
72-months post surgery |
|
Secondary |
Visual Analogue Scale (VAS) to assess right leg pain |
Patients rate their right leg pain from 0 to 10, "0" meaning "No pain at all" and "10" meaning "the worst pain ever possible" |
Pre-operative |
|
Secondary |
Change from baseline in Visual Analogue Scale (VAS) for right leg pain at 3 months |
|
3-months post surgery |
|
Secondary |
Change from baseline in Visual Analogue Scale (VAS) for right leg pain at 6 months |
|
6-months post surgery |
|
Secondary |
Change from baseline in Visual Analogue Scale (VAS) for right leg pain at 12 months |
|
12-months post surgery |
|
Secondary |
Change from baseline in Visual Analogue Scale (VAS) for right leg pain at 24 months |
|
24-months post surgery |
|
Secondary |
Change from baseline in Visual Analogue Scale (VAS) for right leg pain at 48 months |
|
48-months post surgery |
|
Secondary |
Change from baseline in Visual Analogue Scale (VAS) for right leg pain at 72 months |
|
72-months post surgery |
|
Secondary |
Visual Analogue Scale (VAS) to assess left leg pain |
Patients rate their left leg pain from 0 to 10, "0" meaning "No pain at all" and "10" meaning "the worst pain ever possible" |
Pre-operative |
|
Secondary |
Change from baseline in Visual Analogue Scale (VAS) for left leg pain at 3 months |
|
3-months post-surgery |
|
Secondary |
Change from baseline in Visual Analogue Scale (VAS) for left leg pain at 6 months |
|
6-months post-surgery |
|
Secondary |
Change from baseline in Visual Analogue Scale (VAS) for left leg pain at 12 months |
|
12-months post-surgery |
|
Secondary |
Change from baseline in Visual Analogue Scale (VAS) for left leg pain at 24 months |
|
24-months post-surgery |
|
Secondary |
Change from baseline in Visual Analogue Scale (VAS) for left leg pain at 48 months |
|
48-months post-surgery |
|
Secondary |
Change from baseline in Visual Analogue Scale (VAS) for left leg pain at 72 months |
|
72-months post-surgery |
|
Secondary |
Patient satisfaction with treatment assessed by a 4-items question |
Patients rate their satisfaction with treatment choosing one of the following options: Very satisfied/Somewhat satisfied/Somewhat dissatisfied/Very Dissatisfied |
3-months post surgery; 6-months post surgery; 12-months post surgery; 24-months post surgery; 48-months post surgery; 72-months post surgery |
|
Secondary |
Patient's recommendation for treatment assessed by a 4-items question |
Patient rate wether they would recommend the same treatment to a friend with the same condition, choosing one of the following options: Definitely YES/Probably YES/ Probably NO/ Definitely NOT |
3-months post surgery; 6-months post surgery; 12-months post surgery; 24-months post surgery; 48-months post surgery; 72-months post surgery |
|
Secondary |
Patient's opinion related to the treatment assessed by a 6-items question |
Patient rate how effective was the treatment in eliminating the symptoms choosing one of the following options: "very effective, relieved all the symptoms", "moderately effective", "somewhat effective", "somewhat ineffective", "moderately ineffective", "very ineffective, did not relieve or lessen the symptoms" |
3-months post surgery; 6-months post surgery; 12-months post surgery; 24-months post surgery; 48-months post surgery; 72-months post surgery |
|
Secondary |
Surgeon surgery outcome assessed by a 4-items question |
Surgeons rate the result of the surgery, choosing one of the following options: Excellent; Good; Fair; Poor |
3-months post surgery; 6-months post surgery; 12-months post surgery; 24-months post surgery; 48-months post surgery; 72-months post surgery |
|
Secondary |
Segmental joints condition assessed thanks to radiological results (if available) |
|
Pre-operative |
|
Secondary |
Change from baseline in segmental joints condition at 3-months |
Segmental joints condition are assessed thanks to radiological results (if available) |
3-months post surgery |
|
Secondary |
Change from baseline in segmental joints condition at 6-months |
Segmental joints condition are assessed thanks to radiological results (if available) |
6-months post surgery |
|
Secondary |
Change from baseline in segmental joints condition at 12-months |
Segmental joints condition are assessed thanks to radiological results (if available) |
12-months post surgery |
|
Secondary |
Change from baseline in segmental joints condition at 24-months |
Segmental joints condition are assessed thanks to radiological results (if available) |
24-months post surgery |
|
Secondary |
Change from baseline in segmental joints condition at 48-months |
Segmental joints condition are assessed thanks to radiological results (if available) |
48-months post surgery |
|
Secondary |
Change from baseline in segmental joints condition at 72-months |
Segmental joints condition are assessed thanks to radiological results (if available) |
72-months post surgery |
|
Secondary |
Narrowness of the spinal canal assessed thanks to radiological results (if available) |
|
Pre-operative |
|
Secondary |
Change from baseline in narrowness of the spinal canal at 3 months |
Narrowness of the spinal canal is assessed thanks to radiological results (if available) |
3-months post surgery |
|
Secondary |
Change from baseline in narrowness of the spinal canal at 6 months |
Narrowness of the spinal canal is assessed thanks to radiological results (if available) |
6-months post surgery |
|
Secondary |
Change from baseline in narrowness of the spinal canal at 12 months |
Narrowness of the spinal canal is assessed thanks to radiological results (if available) |
12-months post surgery |
|
Secondary |
Change from baseline in narrowness of the spinal canal at 24 months |
Narrowness of the spinal canal is assessed thanks to radiological results (if available) |
24-months post surgery |
|
Secondary |
Change from baseline in narrowness of the spinal canal at 48 months |
Narrowness of the spinal canal is assessed thanks to radiological results (if available) |
48-months post surgery |
|
Secondary |
Change from baseline in narrowness of the spinal canal at 72 months |
Narrowness of the spinal canal is assessed thanks to radiological results (if available) |
72-months post surgery |
|
Secondary |
Foraminal compression assessed thanks to radiological results (if available) |
|
Pre-operative |
|
Secondary |
Change from baseline in foraminal compression at 3 months |
Foraminal compression is assessed thanks to radiological results (if available) |
3-months post-surgery |
|
Secondary |
Change from baseline in foraminal compression at 6 months |
Foraminal compression is assessed thanks to radiological results (if available) |
6-months post-surgery |
|
Secondary |
Change from baseline in foraminal compression at 12 months |
Foraminal compression is assessed thanks to radiological results (if available) |
12-months post-surgery |
|
Secondary |
Change from baseline in foraminal compression at 24 months |
Foraminal compression is assessed thanks to radiological results (if available) |
24-months post-surgery |
|
Secondary |
Change from baseline in foraminal compression at 48 months |
Foraminal compression is assessed thanks to radiological results (if available) |
48-months post-surgery |
|
Secondary |
Change from baseline in foraminal compression at 72 months |
Foraminal compression is assessed thanks to radiological results (if available) |
72-months post-surgery |
|