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Related Experiment Video

Updated: Oct 1, 2025

A Spine Robotic-Assisted Navigation System for Pedicle Screw Placement
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Navigated multiplanar osteotomies for spinal primary bone tumors.

Federico Landriel1, José Ignacio Albergo2, Germán Farfalli2

  • 1Department of Neurosurgical, Spine Unit, Hospital Italiano de Buenos Aires.

Surgical Neurology International
|March 4, 2022
PubMed
Summary

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A Century of Orthopaedic Excellence with Global Impact: Instituto de Ortopedia y Traumatología "Carlos E. Ottolenghi" at Hospital Italiano de Buenos Aires.

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Navigated multiplanar osteotomies precisely resected 14 spinal bone tumors. This technique improved safety and accuracy for both malignant and benign primary spinal bone tumors (SPBT).

Area of Science:

  • Spine Surgery
  • Oncology
  • Orthopedic Oncology

Background:

  • Spinal primary bone tumors (SPBT) require accurate diagnosis and treatment for cures.
  • Malignant or aggressive benign SPBT often necessitate en bloc resection.
  • Multiplanar osteotomies can help preserve critical structures and nerve function.

Purpose of the Study:

  • To report the planning and execution of navigated multiplanar osteotomies.
  • To achieve en bloc resection for 14 cases of SPBT.

Main Methods:

  • Retrospective analysis of 14 consecutive patients (2014-2019) with SPBT.
  • Utilized preoperative 3D planning and intraoperative navigation.
  • Performed en bloc resection using multiplanar osteotomies, with a minimum 12-month follow-up.
Keywords:
En bloc resectionMultiplanar osteotomiesNavigated osteotomiesSpinal primary bone tumorsSpine navigation

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Main Results:

  • Diagnoses included 11 primary sarcomas (6 chordomas, 5 chondrosarcomas) and 3 osteoblastomas.
  • Tumors were located in the sacrum (11) and thoracic spine (3).
  • En bloc margins were marginal (<1 cm) in 12 patients and wide (>1 cm) in 2. Forty osteotomies were performed using navigation.

Conclusions:

  • Navigated multiplanar osteotomies enhance precision and safety in en bloc resection of SPBT.
  • This technique is effective for both malignant and benign/locally aggressive spinal tumors.