In a double-publication, the first results of the PTED-study were published in the British Medical Journal and the British Journal of Sports Medicine.
In the meantime, more articles were published and more information from this study is available:
Body Image and Cosmesis after Percutaneous Transforaminal Endoscopic Discectomy versus Conventional Open Microdiscectomy for Sciatica
Infographic. Endoscopic versus open discectomy for sciatica? Which is more cost-effective?
Full-endoscopic lumbar disc surgery: the new gold standard? (PhD Academy Award)
All hospitals involved in this study used the MaxMoreSpine PTED Endoscopic System.