Metal-Free Cerclage Method of Arthroscopic Latarjet Using a Printed Poly Lactic Acid Coracoid Protector to Prevent...

Area of Science:

• Orthopedic Surgery
• Biomaterials Engineering
• Sports Medicine

Background:

• The Latarjet procedure is a reliable treatment for shoulder instability with bone loss.
• Current fixation methods for the Latarjet procedure often use metal implants, risking bone damage and osteolysis.
• Metal-free fixation options are limited due to the coracoid's cancellous nature causing issues like 'cheese wiring' with soft implants.

Purpose of the Study:

• To introduce a novel, absorbable 3D-printed coracoid protector for metal-free Latarjet fixation.
• To evaluate the protective capabilities and strength of the novel coracoid protector.
• To facilitate secure and safe coracoid fixation in the Latarjet procedure without metal implants.

Main Methods:

• Development of an absorbable poly lactic acid 3D-printed coracoid protector (SJ Buckler).
• Laboratory testing to verify the protector's strength (withstand >120 N).
• Application of the protector during arthroscopic or open Latarjet procedures for metal-free fixation.

Main Results:

• The SJ Buckler effectively protects the coracoid process from cut-through during fixation.
• The protector demonstrated laboratory-verified strength exceeding 120 N.
• The device allows for secure, metal-free coracoid tensioning in the Latarjet procedure.

Conclusions:

• The SJ Buckler offers a viable solution for metal-free fixation in the Latarjet procedure.
• This absorbable implant protects the coracoid bone, mitigating risks associated with metal implants.
• The technology facilitates improved outcomes for patients undergoing surgical treatment for shoulder instability with bone loss.