Procedure & Recovery Timeline

After Dr. Broyles assesses your candidacy and reviews your medical records, a surgery date is scheduled. Learn how to become a patient.

The timeline below details each step in the Biologic Augmented Microdrilling (BAM) procedure. Below the timeline are definitions of bold terms.

Pre-Operative Appointment
MRI & X-ray
Clinical evaluation

Day 1 Microdrilling Surgery
First injection of PRP+BMAC+HA

5 Weeks One injection per week for 5 weeks
Physical therapy 4-5 times per week
CPM use daily
MRI, X-ray and clinical evaluation at last injection visit

4 Months One injection per week for 3 weeks*
MRI & X-ray
Clinical evaluation
Physical therapy 2 times per week

12 Months One injection per week for 3 weeks*
MRI & X-ray
Clinical evaluation
Resume all activity as tolerated

18 Months MRI & X-ray
Clinical evaluation

*Injections at 4 months and 1 year are optional but strongly recommended.

Microdrilling Surgery – outpatient arthroscopic surgery where small holes are drilled in the bone at the location of cartilage damage. This procedure is a marrow stimulating technique performed to provide an environment for cartilage healing by mobilizing local bone marrow- derived stem cells to the site of the cartilage damage. 

Injections of BMAC + PRP + HA – these post-operative injections augment the microdrilling surgery. BMAC (Bone Marrow Aspirate Concentrate) contains mesenchymal stem cells that are capable of differentiating into cartilage cells. Fresh bone marrow is taken from the hip bone at the time of each injection. PRP (Platelet Rich Plasma) is a blood product rich in growth factors that promotes cartilage cell growth.  HA (Hyaluronic Acid) is a building block of good normal cartilage and inhibits the breakdown of cartilage cells. These 3 components are injected intraarticularly into the knee at each injection visit.  

Physical Therapy – All patients will follow a detailed physical therapy protocol tailored to your needs. 

CPM – Continuous Passive Motion Machine is used for 2 hours per day for 4 weeks after surgery. Motion helps the stem cells differentiate into cartilage cells instead of bone cells.


Background research  Learn how to become a patient

The Cartilage Regeneration Center at Bone & Joint Clinic of Baton Rouge complies with applicable Federal civil rights laws and does not discriminate on the basis of race, color, national origin, age, disability or sex. Click to view our notice.