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Multirod Constructs in Spine Surgery.

Dillon Benson1, Tony Da Lomba1, Michael Lee1

  • 1Department of Orthopaedic Surgery & Rehabilitation Medicine, University of Chicago, Chicago, Illinois.

The Journal of Bone and Joint Surgery. American Volume
|August 28, 2025
PubMed
Summary
This summary is machine-generated.

Multirod constructs (≥3 rods) are increasingly used in complex spine surgery, offering improved outcomes compared to traditional dual-rod methods. Standardized terminology is crucial for advancing research on these advanced spinal stabilization techniques.

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Area of Science:

  • Spine Surgery
  • Orthopedic Biomechanics
  • Surgical Instrumentation

Background:

  • The utilization of multirod constructs (≥3 rods) in complex spine surgery has significantly increased over the last decade.
  • Various rod configurations exist, each offering distinct advantages and specific clinical applications for supplemental rod function.

Purpose of the Study:

  • To review the growing use and benefits of multirod constructs in complex spine surgery.
  • To highlight the advantages of multirod constructs over traditional dual-rod constructs.
  • To emphasize the need for consistent nomenclature in multirod construct research.

Main Methods:

  • Literature review of studies comparing multirod constructs with dual-rod constructs.
  • Analysis of reported outcomes including pseudarthrosis, rod fracture, and reoperation rates.
  • Discussion of different multirod configurations and their indications.

Main Results:

  • Multirod constructs demonstrate a reduced incidence of pseudarthrosis, rod fracture, and reoperation compared to dual-rod constructs.
  • Specific rod configurations are associated with particular clinical benefits and indications.
  • Consistent nomenclature is identified as essential for future research.

Conclusions:

  • Multirod constructs represent an advancement in complex spine surgery, offering superior biomechanical stability and clinical outcomes.
  • Further research is needed to fully elucidate the potential of various multirod configurations.
  • Standardized terminology will facilitate more robust clinical and biomechanical investigations into multirod constructs.