Anesthesia & Life Support in Alabama

MACB, LLC manufactures the MACB® Introducer, a surgeon-placed adductor canal block device designed for intraoperative regional analgesia in total knee arthroplasty (TKA) procedures. The device enables surgeons to deliver non-opioid pain management directly during surgery, providing 4–5 days of pain relief and facilitating same-day discharge for outpatient TKA in ambulatory surgery centers. The MACB® Introducer offers both catheter-based therapy and non-catheter options using liposomal bupivacaine, eliminating the need for additional anesthesia procedures and reducing opioid-related complications and hospital stays. Developed by Dr. Daniel Matthews, MD, FAAOS, an orthopedic surgeon with 30+ years of experience, the device has been extensively validated in clinical practice with over 2,100 placements and peer-reviewed publications demonstrating superior nerve coverage compared to ultrasound-guided blocks alone. The company distributes catheter-based therapy products exclusively through Avanos Medical Technologies in the United States. MACB targets orthopedic surgeons and surgical centers seeking to implement opioid-free pain management protocols for knee arthroplasty.