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Updated: Jun 4, 2026

The Third Channel-Assisted Unilateral Biportal Endoscopic Technique for Lumbar Spinal Stenosis Combined with Contralateral Disc Herniation
Published on: November 17, 2023
Three-level en bloc spondylectomy for chordoma
Michelle J Clarke1, Wesley Hsu, Ian Suk
1Department of Neurosurgery, Mayo Clinic, Rochester, MN 55905, USA.
Background:
En bloc resection of spinal and sacral chordomas may convey a survival benefit. However, these procedures often are complex and require the surgeon to plan a procedure that results in negative tumor margins, protects vital neurovascular structures, and concludes with a viable biomechanical reconstruction.
Objective:
We present a case of a 3-level en bloc lumbar spondylectomy and reconstruction.
Methods:
A case of a 45-year-old woman with biopsy-proven exophytic L4 chordoma is presented. The patient underwent successful L3-L5 en bloc spondylectomy and reconstruction over 3 stages.
Results:
The patient did well following the procedure, and was neurologically intact at 6-week follow-up.
Conclusion:
Three-level en bloc spondylectomy with lumbopelvic reconstruction is a challenging yet feasible procedure.