An Extreme Lateral Access for the Surgery of Lumbar Disc Herniations Inside the Spinal Canal Using the Full-Endoscopic Uniportal Transforaminal Approach–Technique and Prospective Results of 463 Patients

The technique presented is an adequate and safe alternative to conventional procedures, and has the advantages of a truly minimally invasive procedure. The extreme lateral access is required for the indications described. There are clear limitations outside these indications. The possibility of selecting an access from posterolateral to extreme lateral now enables surgery of lumbar disc herniations inside and outside the spinal canal.