3D-Planned Posterior Open-Wedge Glenoid Osteotomy Using a Patient-Specific Cutting Guide in Posterior Shoulder...

Area of Science:

• Orthopedic Surgery
• Biomechanical Engineering
• Radiology

Background:

• Posterior shoulder instability is often underdiagnosed due to subtle symptoms.
• Excessive glenoid retroversion is a primary cause of posterior humeral head subluxation.
• Surgical correction may be necessary when soft tissue repair is insufficient.

Purpose of the Study:

• To describe a novel technique for correcting excessive glenoid retroversion.
• To introduce a 3D-planned posterior open-wedge glenoid osteotomy using patient-specific guides.
• To enhance the accuracy and safety of surgical correction for posterior shoulder instability.

Main Methods:

• Preoperative 3D computed tomography (CT) planning was utilized for virtual correction.
• A patient-specific cutting guide (PSI) was designed based on 3D CT data.
• The PSI facilitated accurate osteotomy orientation and execution for posterior glenoid retroversion correction.

Main Results:

• The described technique allows for precise correction of excessive glenoid retroversion.
• Patient-specific guides ensure accurate orientation and safe osteotomy.
• The method enables faithful translation of the preoperative plan into surgical reality.

Conclusions:

• 3D-planned posterior open-wedge glenoid osteotomy with PSI is a viable technique.
• This approach offers improved accuracy and reproducibility for correcting glenoid retroversion.
• The technique facilitates safe osteotomy and allows for early patient mobilization.