Shoulder pain from rotator cuff damage, osteoarthritis, or labral tears can severely limit overhead activity, sports, sleep, and daily function. Bone marrow aspirate concentrate (BMAC) stem cell therapy offers the most potent non-surgical regenerative approach available — delivering your own living bone marrow stem cells directly into the damaged tissue responsible for your pain.
Dr. William Bonner, a credentialed Regenexx network provider in Miami, performs ultrasound-guided BMAC procedures for a range of shoulder conditions with precision imaging to ensure cells are delivered exactly where they are needed.
Partial rotator cuff tears represent the strongest indication for BMAC in the shoulder — and one of the most common clinical situations where patients are left without a clear treatment path. At times, they are too significant to respond fully to physical therapy alone, yet they do not meet the threshold for surgical repair that most orthopedic surgeons require. The result is a frustrating middle ground where patients are often told to “manage” their symptoms with cortisone injections and activity modification — neither of which addresses the underlying tendon damage.
BMAC changes this equation. By delivering your own mesenchymal stem cells and growth factors directly into the partial tear site under ultrasound guidance, BMAC targets the biological deficit at the core of why partial rotator cuff tears fail to heal on their own:
BMAC addresses all three of these simultaneously — delivering the cells the tissue cannot recruit on its own, providing the growth factors that shift the environment from degenerative to reparative, and modulating the inflammatory signaling that perpetuates tendon breakdown.
For patients with partial rotator cuff tears in Miami who have been told surgery is not yet indicated but conservative treatment has not provided lasting relief, BMAC represents the most clinically rational next step — one that directly targets the tissue pathology rather than simply managing symptoms.
The rotator cuff tendons are poorly vascularized at the critical footprint where most tears occur — meaning natural healing is biologically compromised. BMAC delivers:
| Option | Best For | Key Advantage | Key Limitation |
| PRP | Small partial tears, tendinopathy, mild OA | Less invasive; strong evidence for early pathology | Less potent than BMAC for larger tears |
| BMAC Stem Cell Therapy | Larger partial tears, failed PRP, degenerative full-thickness tears | Living stem cells + growth factors — most potent non-surgical option | More involved; bone marrow aspiration required |
| Surgery | Large complete tears with retraction | Definitive mechanical repair | Long recovery; surgical risks |
| Physical Therapy | All stages; essential complement | Strengthens supporting musculature | Cannot repair structural tears alone |
Many clinics in Miami advertise ‘stem cell therapy’ using amniotic or umbilical cord products that independent research has shown to contain no viable living stem cells. As a credentialed Regenexx network provider, Dr. Bonner uses your own living bone marrow stem cells — harvested and processed the same day — under strict evidence-based protocols backed by the largest regenerative orthopedics outcome registry in the world. Regenexx is the only organization with this combination of proprietary lab processing, published clinical research, and rigorous provider credentialing.
Bone marrow is aspirated from the posterior iliac crest under local anesthetic and fluoroscopic guidance, concentrated in-office using Regenexx protocols, then injected into the hip joint under fluoroscopic guidance with contrast confirmation. Full procedure time including processing is approximately 2.5 to 3.5 hours in a single visit.
Most patients resume light daily activities within 1–3 days. Improvement develops gradually over 6–12 weeks, with continued benefit over 3–6 months.
BMAC is most effective for partial tears. Large, complete, retracted tears typically require surgical repair. Many partial tears — and full-thickness tears in older or lower-demand patients — experience meaningful improvement with BMAC. Dr. Bonner will review your MRI and give you an honest recommendation.
PRP is excellent for smaller partial tears and tendinopathy. BMAC — with its stem cell component — is preferred for larger partial tears, more extensive degeneration, or when PRP has not provided sufficient improvement.
Many Miami clinics use amniotic or cord products lacking viable stem cells. BMAC uses your own living bone marrow cells processed the same day. As a Regenexx provider, Dr. Bonner follows protocols with more published outcome data than any other regenerative medicine organization.
A period of modified activity is required after treatment. Meaningful improvement typically develops over 8–16 weeks with continued progress over 3–6 months.
If you are dealing with shoulder pain, a rotator cuff tear, or osteoarthritis – including bone-on-bone osteoarthritis – and want to explore whether BMAC therapy is right for you, we are here to help.
Contact our Miami clinic to schedule an appointment with Dr. Bonner, or book online through ZocDoc for available appointment times (if you do not see availability, please reach out to us directly at 786-522-4959).
BOOK ONLINE NOWWe do not quote prices over the phone, because the right treatment depends on what your exam and imaging actually show. We do explain exactly how cost works, why price comparisons between clinics are misleading, and why your evaluation is billed through your insurance.
Read our honest answer on PRP and stem cell treatment cost in Miami
