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Year : 2022  |  Volume : 9  |  Issue : 1  |  Page : 62-64

Sympathetic conjoined lumbosacral nerve root in kambin's triangle during transforaminal endoscopy

1 Indore Spine Centre, Indore, Madhya Pradesh, India
2 Indian Spine Injury Centre, New Delhi, India

Correspondence Address:
Kiran Dhole
Indore Spine Centre, Anup Nagar, Indore - 452 009, Madhya Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/joss.joss_24_21

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Kambin's triangle is a safe corridor for transforaminal endoscopic approach as it is devoid of any neurovascular structure. We came across an interesting case where we encountered a large conjoined lumbosacral nerve root (CNR) in Kambin's triangle during transforaminal endoscopic spine surgery. Patient had intraoperative sympathetic shock which recovered after administering atropine. A 50-year-old female presented with low back pain with bilateral lower limb radiculopathy for 3 years. Magnetic resonance imaging revealed left L4-5 foraminal annular fissure. Radiculopathy was in L5 dermatomal pattern which was confirmed by diagnostic discography and lateral recess block. Left-sided L4-5 transforaminal endoscopic lumbar discectomy was done where we encountered a large CNR in safe zone of Kambin's triangle. Transforaminal endoscopic spine surgery done under monitored anesthesia care with patient in awake and aware state allows identification, diagnosis, and prevention of injury to anomalous neural structure in Kambin's triangle to avoid incidence of failed back syndrome.

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