How I do it? Full endoscopic transforaminal approach for lumbar disc herniation that migrated bilaterally to four corners



Despite of the evolution of endoscopic surgery, the literature on technique uniportal transforaminal endoscopic lumbar discectomy (TELD) for bilateral lesions is scarce.


Unilateral TELD was performed in a patient with bilateral superior and inferior migrated, broad-based disc herniation presenting with an impaired neurological state. The key surgical steps focus on free mobility in Kambin triangle with the mobile outside-in technique and accessibility to contralateral lesions with an extensive annular resection procedure.


TELD can be a surgical option for treating bilateral multiple direction migrated lumbar disc herniation with benefits of minimal neural retraction and facet joint preservation.

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Correspondence to Hyeun-Sung Kim.

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This article is part of the Topical Collection on Spine degenerative.

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Kim, J.Y., Choi, S.Y., Kim, HS. et al. How I do it? Full endoscopic transforaminal approach for lumbar disc herniation that migrated bilaterally to four corners. Acta Neurochir (2021).

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  • Lumbar
  • Disc herniation
  • Transforaminal
  • Endoscopy