Clinical Applications & Effects of
    Bone Marrow Aspirate Concentrate (BMAC)

    Clinical Applications of
    Bone Marrow aspirate concentrate (BMAC)

    Early to moderate osteoarthritis of the knee, hip, shoulder, and ankle
    → reduction of synovial inflammation, modulation of the joint microenvironment, decreased pain and improved function, even in young and active patients.

    Meniscal and cartilage lesions
    → stimulation of chondrocyte proliferation and repair of fibrocartilaginous and hyaline tissue.

    Chronic tendinopathies (e.g., Achilles, patellar, rotator cuff)
    → regeneration of degenerated tendon tissue, reduction of chronic inflammation, and improvement of local biomechanics.

    Muscle injuries and volumetric muscle loss (VML)
    → stimulation of neoangiogenesis, reduction of fibrosis, and restoration of continuity and volume of damaged muscle tissue.

    Carpal tunnel syndrome and entrapment neuropathies
    → neuroprotective and anti-inflammatory effects on nerve structures, leading to reduced neuropathic pain and improved nerve conduction.

    Osteoarthritis of the wrist and small joints
    → improved joint mobility, reduction of painful symptoms, and slowing of articular degeneration.

    Role of mesenchymal stem cells (MSCs)

    Cartilage:
    → Early osteoarthritis of knee, hip, ankle, and shoulder; promotes regeneration and reduces inflammation.

    Tendons/Ligaments:
    → Chronic tendinopathies and partial ligament injuries; supports healing and function.

    Muscle:
    → Traumatic and overuse injuries; enhances repair and angiogenesis.

    Small joints and fascia:
    → Resistant cases of plantar fasciitis and minor joint degeneration.

    Clinical effects of Bone Marrow Aspirate
    Concentrate (BMAC)

    Anti-inflammatory Effect
    → Mesenchymal stromal cells (MSCs) in BMAC modulate the inflammatory response through secretion of anti-inflammatory cytokines (IL-10, TGF-β).
    They reduce pain and edema in injured tissues, improving joint load tolerance.
    They promote macrophage polarization from pro-inflammatory (M1) to regenerative (M2) phenotype.

    Regenerative Effect
    → Stimulate the proliferation and differentiation of resident cells (chondrocytes, tenocytes, myocytes).
    Promote neoangiogenesis and tissue remodeling.
    Support extracellular matrix synthesis, enhancing tissue repair quality.

    Analgesic Effect
    → The anti-inflammatory and regenerative actions lead to significant pain reduction, even in chronic conditions.
    May reduce the need for NSAIDs or corticosteroid injections.

    Immunomodulatory Effect
    → MSCs interact with immune cells (lymphocytes, macrophages, dendritic cells), dampening autoimmune responses.
    Useful in degenerative and inflammatory joint diseases of microtraumatic origin.

    Functional Improvement
    Increased joint range of motion, enhanced muscle strength, and improved performance in functional tests.
    Faster recovery times after injuries or surgeries.

    Clinical Applications of
    BMAC in Joint Replacement Surgery

    Autologous bone marrow concentrate has also been integrated into hip and knee replacement surgery with regenerative and osteointegrativepurposes:

    • Potential acceleration of osteointegration of uncemented implants through intraoperative application of BMAC on the stem or the tibial/femoral component.
    • Intraoperative treatment of periarthroplastic bone defects with BMAC in combination with autologous or allogeneic cancellous bone grafts.
    • Reduction of inflammation and stimulation of tissue healing in revision or reimplant surgeries with fibrotic or pseudoarthroticoutcomes.

    Preliminary clinical evidence suggests a potential benefit in osteointegration quality, reduction of postoperative pain, and improvement in functional recovery times.

    Clinical Applications of
    BMAC in Traumatology

    In the treatment of orthopedic trauma, the use of BMAC has shown regenerative and osteoinductivepotential in several complex situations:

    • High-complexity fractures (metaphyseal, articular, comminuted) as support for bone healing.
    • Delayed unions and non-unions (especially in femur, tibia, and humerus).
    • Biological integration in fixation with plates or nails in fragile patients or those with reduced bone regenerative capacity.
    • Segmental bone defects treated with cancellous graft and combined BMAC.
    • Periprosthetic fractures as biological adjuvant for stabilization and residual bone potential.

    BMAC can be injected directly into the fracture site or combined with bone scaffolds, enhancing biological osteogenesis.