Restoring Segmental Lordosis Via One Previous Posterior Approach After Failed Fusion at the Same Level for Degenerative Lumbar Disease
The restoration of lumbar lordosis is mandatory during lumbar fusion surgery for degenerative disc disease, since not restoring lumbar lordosis adequately may adversely affect surgical outcomes and the patient's quality of life in the follow-up. Revision surgery to restore segmental lordosis at the level of previous spinal fusion is extremely difficult to do and its performance is usually inferior to that of primary surgery. Need to provide a surgical technique to restore segmental lordosis via a posterior approach, which is especially important after failed previous fusion at the same lumbar level.
• 1\. Over 18 years' old;
• 2\. Lumbar back pain with / without radicular leg pain (with / without neurological deficit) with / without neurogenic claudication, symptoms persisting for at least 3 months prior to surgery;
• 3\. 1) Failed back lumbar fusion surgery at the same level or on an adjacent segment or 2) Symptomatic discopathy with loss of segmental lordosis at one of the levels L3-L4, L4-L5 or L5-S1, confirmed by MRI и Rg, with/without degenerative stenosis/spondylolisthesis
• 4\. Need for a planned surgical procedure with a major extent of segmental lordosis restoration (more than 10°);
• 5\. Given written informed consent;
• 6\. Able and agree to fully comply with the clinical protocol and willing to adhere to follow-up schedule and requirements