First in Man: Sternal Reconstruction with Autologous Stem Cells

Area of Science:

• Regenerative Medicine
• Orthopedic Surgery
• Biomaterials Science

Background:

• Sternal nonunion presents significant morbidity, typically managed with rigid plate and screw fixation.
• Mesenchymal stem cells within adipose-derived stromal vascular fraction (SVF) are known for their bone healing properties.
• This case explores the use of SVF stem cells to enhance healing in sternal nonunion.

Observation:

• A patient with sternal nonunion underwent a novel surgical procedure.
• Preoperative planning utilized a 3D printed sternal model for precise plate fixation.
• SVF was isolated intraoperatively using ultrasonic cavitation and administered via local and intravenous injection.

Findings:

• The combined approach of SVF stem cell therapy and sternal plating resulted in successful sternal reconstruction.
• The patient experienced a dramatic decrease in pain post-procedure.
• Three-dimensional computed tomography confirmed sternal nonunion healing at 3 and 6 months postoperatively.

Implications:

• Autologous stem cell therapy from SVF, combined with current plating techniques, offers a promising strategy for sternal stabilization and bone healing.
• This innovative method may improve outcomes for patients suffering from sternal nonunion.
• Further research is warranted to validate the efficacy and broader applicability of this regenerative approach.