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Use of 3D-Printed Patient-Specific Guide for Posterior Bone Block Procedure in Patients With Posterior Shoulder

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Summary

Patient-specific instrumentation and a novel ancillary device optimize posterior shoulder bone grafting for instability. This technique ensures precise iliac graft placement in open or arthroscopic surgery, reducing risks like impingement.

Keywords:
patient specific 3d-printed guidepatient-specific instrumentation (psi)posterior bone blockposterior shoulder instabilityshoulder injuries in young athletes

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Area of Science:

  • Orthopedic Surgery
  • Biomechanical Engineering
  • Medical Device Innovation

Background:

  • Posterior glenohumeral instability often requires bone grafting, typically using iliac crest grafts.
  • Standard open or arthroscopic techniques carry risks such as graft protrusion and impingement, potentially leading to osteoarthritis.
  • Optimizing surgical precision is crucial for improving outcomes and minimizing complications.

Purpose of the Study:

  • To introduce a novel technique for posterior shoulder bone grafting using patient-specific instrumentation (PSI) and an ancillary device.
  • To evaluate the potential of PSI and the HyLa (Latarjet Hybrid, NEWCLIP®) ancillary device to enhance surgical accuracy and safety.
  • To describe the first-time application of this combined approach for posterior shoulder instability.

Main Methods:

  • Development and application of a customized cutting guide for precise iliac graft harvesting and preparation.
  • Utilization of the HyLa (Latarjet Hybrid, NEWCLIP®) placement ancillary device for accurate graft positioning.
  • Implementation of the technique in both open and arthroscopic surgical settings.

Main Results:

  • The described technique enables precise installation of posterior shoulder bone blocks with iliac crest grafts.
  • The combination of PSI and the HyLa ancillary device facilitates accurate graft placement, mitigating risks associated with standard procedures.
  • This method is applicable to both open and arthroscopic surgical approaches.

Conclusions:

  • Patient-specific instrumentation combined with the HyLa ancillary device offers a promising advancement for posterior shoulder bone grafting.
  • This technique enhances surgical precision and potentially reduces the risk of complications like protrusion and impingement.
  • The described method provides a reproducible and accurate solution for managing posterior glenohumeral instability.