Bone marrow concentrate: a novel strategy for bone defect treatment

Area of Science:

• Orthopaedic surgery
• Regenerative medicine
• Biomaterials science

Background:

• Limited clinical applications of stem cell and tissue engineering in orthopaedics.
• Need for effective treatments for volumetric bone deficiencies.

Purpose of the Study:

• Evaluate the clinical outcomes of mesenchymal stem cells (MSCs) and bone marrow aspirate (BMA) for volumetric bone deficiencies.
• Assess the in vitro behavior of bone marrow concentrate (BMC) on a collagen scaffold.

Main Methods:

• Case series of ten patients with bone defects treated with MSCs and BMA.
• Radiographic evaluation of clinical outcomes.
• In vitro culture of BMC on a porous collagen I scaffold.
• Bone marrow aspiration using a commercial system.

Main Results:

• Clinical application of BMC/bone aspirate is rational for osseous defects.
• Intraoperative harvest procedure is safe and efficient.
• MSCs adhered and proliferated on a collagen scaffold within 15 minutes.
• MSCs demonstrated osteogenic differentiation in vitro without external stimuli.

Conclusions:

• Local application of BMC/bone aspirate is a promising alternative for bone deficiencies.
• This approach may reduce donor site morbidity compared to autogenous bone grafting.