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Optimizing the Eden-Hybinette Procedure With 3D-Printed Patient-Specific Instrumentation: A Technical Note.

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  • 1Orthopaedics and Traumatology, Laveran Military Hospital, Marseille, ATF.

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|December 2, 2025
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Summary
This summary is machine-generated.

This study introduces a 3D-printed guide for the Eden-Hybinette procedure, improving accuracy in shoulder stabilization for recurrent instability. The technique enhances graft placement and patient recovery without recurrence.

Keywords:
3d printing technologyanterior shoulder instabilityeden-hybinette procedureiliac crest bone graftpatient-specific instrumentation (psi)

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Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering
  • Radiology

Background:

  • Recurrent anterior shoulder instability with significant glenoid bone loss often requires complex reconstructive procedures.
  • The Eden-Hybinette procedure, utilizing an iliac crest bone graft, is indicated for severe cases, including coracoid dysplasia or failed prior stabilization.
  • Traditional methods face challenges in precise graft harvesting and positioning, potentially impacting outcomes.

Purpose of the Study:

  • To describe an enhanced open Eden-Hybinette technique using 3D-printed patient-specific cutting guides and a dedicated positioning device.
  • To evaluate the accuracy, reproducibility, and safety of this novel approach for shoulder stabilization.

Main Methods:

  • Preoperative CT scans were used for detailed planning, including glenoid bone loss assessment and graft dimension calculation.
  • A 3D-printed patient-specific guide facilitated reproducible tricortical iliac crest graft harvesting.
  • A dedicated positioning device (HyLa) ensured accurate intraoperative graft placement, preventing overhang or medialization.

Main Results:

  • Patient-specific instrumentation enabled precise graft sizing and accurate placement.
  • Postoperative imaging confirmed excellent graft congruency and stable fixation.
  • Patients achieved functional recovery within six months, reporting no recurrence of instability or donor-site morbidity.

Conclusions:

  • Combining 3D-printed guides with specialized instrumentation offers significant advantages for the Eden-Hybinette procedure in revision shoulder stabilization.
  • This technique improves accuracy, reproducibility, and safety by anticipating graft parameters and screw trajectories.
  • Further clinical validation is needed to compare outcomes against conventional methods.