Minimally invasive l5 corpectomy with navigated expandable vertebral cage: A technical note

Taro Yamauchi, Ashish Jaiswal, Masato Tanaka, Yoshihiro Fujiwara, Yoshiaki Oda, Shinya Arataki, Haruo Misawa

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Background: Conventional L5 corpectomy requires a large incision and an extended pe-riod of intraoperative fluoroscopy. We describe herein a new L5 corpectomy technique. Methods: A 79-year-old woman was referred to our hospital for leg pain and lower back pain due to an L5 vertebral fracture. Her daily life had been affected by severe lower back pain and sciatica for more than 2 months. We initially performed simple decompression surgery, but this proved effective for only 10 months. Results: For revision surgery, the patient underwent minimally invasive L5 corpectomy with a navigated expandable cage without fluoroscopy. The second surgery took 215 min, and esti-mated blood loss was 750 milliliters. The revision surgery proved successful, and the patient could then walk using a cane. In terms of clinical outcomes, the Oswestry Disability Index improved from 66% to 24%, and the visual analog scale score for lower back pain improved from 84 to 31 mm at the 1-year follow-up. Conclusions: Minimally invasive L5 corpectomy with a navigated expandable vertebral cage is effective for reducing cage misplacement and surgical invasiveness. With this new technique, surgeons and operating room staff can avoid the risk of adverse events due to intraoper-ative radiation exposure.

Original languageEnglish
Article number1241
JournalBrain Sciences
Issue number9
Publication statusPublished - Sept 2021


  • C-arm free
  • L5 corpectomy
  • Minimally invasive surgery
  • Navigation
  • Single lateral position

ASJC Scopus subject areas

  • Neuroscience(all)


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