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Related Experiment Videos

Reconstruction after total en bloc sacrectomy for osteosarcoma using a custom-made prosthesis: a technical note.

P Wuisman1, O Lieshout, M van Dijk

  • 1Departments of Orthopaedic Surgery and Pathology, Free University Hospital, Amsterdam, The Netherlands. orthop@azvu.nl

Spine
|February 27, 2001
PubMed
Summary

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This study presents a novel technique for reconstructing the lumbosacral junction after total sacrectomy for osteosarcoma. A custom-made prosthesis, designed using a 3D model, enabled successful reconstruction and functional recovery in a patient.

Area of Science:

  • Orthopedic surgery
  • Surgical oncology
  • Biomedical engineering

Background:

  • Total sacrectomy for highly malignant osteosarcoma presents significant reconstruction challenges.
  • Previous reconstruction methods lack detailed pre-operative planning and custom prosthesis design.
  • A three-dimensional (3D) real-sized model offers a novel approach for pre-operative planning and prosthesis design.

Observation:

  • A 42-year-old female patient presented with neurologic impairment due to sacral osteosarcoma invading surrounding structures.
  • A 3D real-sized model was utilized for surgical planning and the design of a custom sacral prosthesis.
  • The patient underwent a staged anteroposterior resection-reconstruction procedure.

Findings:

  • The custom-made sacral prosthesis successfully restored spinopelvic continuity after total sacrectomy.

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  • The patient achieved disease-free status at 36-month follow-up with a stable, painless spinopelvic junction.
  • Functional outcomes included the ability to walk short distances with orthoses and crutches.

    • Implications:

    • 3D modeling is advantageous for planning total sacrectomy and designing custom prostheses.
    • This technique facilitates achieving wide bony resection margins and stable reconstruction.
    • The approach holds promise for improving outcomes in complex sacral tumor resections.