Introduction: Three-dimensional (3D) preoperative planning and patient-specific instrumentation (PSI) improve accuracy of glenoid component implantation in reverse shoulder arthroplasty.
Step 1 preoperative virtual 3d planning video 1: Use a 3D software tool for virtual preoperative planning of glenoid component implantation.
Step 2 patient positioning and surgical approach video 2: Place the patient in a semi-beach-chair position and perform a standard deltopectoral approach.
Step 3 humeral preparation video 3: Prepare the humeral side for implantation of the humeral component using standard instrumentation.
Step 4 glenoid exposure and preparation video 4: Expose the glenoid and prepare the glenoid surface for component implantation.
Step 5 glenoid preparation and implantation of the glenoid baseplate using 4 psi guides video 5: Use the 4 PSI guides to prepare the glenoid for component implantation according to the preoperative plan.
Step 6 definitive implantation of the components and reduction video 6: Implant the glenosphere and humeral component and reduce the prosthesis.
Step 7 postoperative rehabilitation protocol: Start passive and active-assisted exercises immediately, and begin muscle strengthening and active exercises at 6 weeks.
Results: A recent prospective, comparative study assessed the influence of 3D preoperative planning and PSI guidance of glenoid component positioning in total shoulder arthroplasty and reverse shoulder arthroplasty18.