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Minimally Invasive L5 Corpectomy with Navigated Expandable Vertebral Cage: A Technical Note.
Taro Yamauchi1, Ashish Jaiswal1, Masato Tanaka1
1Department of Orthopaedic Surgery, Okayama Rosai Hospital, Okayama 702-8055, Japan.
Brain Sciences
|September 28, 2021
Summary
Minimally invasive L5 corpectomy using a navigated expandable cage offers an effective alternative to traditional methods. This technique reduces surgical invasiveness and radiation exposure for both patients and staff.
Area of Science:
- Spinal surgery
- Minimally invasive procedures
- Vertebral reconstruction
Background:
- Conventional L5 corpectomy involves large incisions and significant intraoperative fluoroscopy.
- A minimally invasive approach is sought to mitigate these drawbacks.
Purpose of the Study:
- To describe a novel technique for minimally invasive L5 corpectomy.
- To evaluate its efficacy in a revision surgery setting.
Main Methods:
- A 79-year-old female patient with persistent L5 vertebral fracture pain underwent revision surgery.
- The procedure utilized minimally invasive L5 corpectomy with a navigated expandable cage, performed without fluoroscopy.
Main Results:
- The revision surgery was completed in 215 minutes with 750 mL estimated blood loss.
- The patient experienced significant improvement in mobility and pain, walking with a cane.
- Oswestry Disability Index improved from 66% to 24%; Visual Analog Scale for back pain decreased from 84 to 31 mm at 1-year follow-up.
Conclusions:
- Minimally invasive L5 corpectomy with a navigated expandable cage is effective and reduces surgical invasiveness.
- This technique minimizes the risk of cage misplacement and avoids intraoperative radiation exposure for surgical teams.

