Refractory Osteomyelitis: How HBOT Supports Bone Infection Recovery, According to Current Research
Lisa St. John, M.S.
Lisa is our Clinic Director and Founder. She earned her Master's degree from Harvard University, completed a Fellowship at Stanford University, and has spent the last 30 years working in the healthcare field.
Osteomyelitis is a bone infection that usually clears up with surgery and antibiotics. But in some patients, the infection keeps coming back despite proper treatment — a condition doctors call chronic refractory osteomyelitis. These stubborn infections are hard to treat and can lead to amputation if left unresolved. Hyperbaric oxygen therapy (HBOT) is a Medicare-covered, FDA-cleared treatment used alongside surgery and antibiotics for exactly these cases.
Why Some Bone Infections Won't Heal
Bone that's been infected and damaged often loses its normal blood supply, leaving the tissue starved of oxygen. According to a clinical review from the National Center for Biotechnology Information (NCBI), this low-oxygen environment causes two problems at once:
It slows the body's natural ability to heal
It creates conditions where bacteria can survive even after surgery and antibiotics
Doctors typically classify these infections using the Cierny-Mader system, which grades how much bone is affected and how well a patient is likely to heal — helping identify which patients are good candidates for HBOT.
What the Research Shows
The Undersea and Hyperbaric Medical Society (UHMS) — the leading scientific authority in this field — reports that while large randomized trials are limited, the majority of available animal studies, case series, and clinical trials show that adding HBOT to standard treatment improves infection resolution. Based on this evidence, UHMS notes that HBOT carries an American Heart Association Class II recommendation for refractory osteomyelitis.
How it works: Restoring healthy oxygen levels to infected bone helps in two ways:
Immune support — Neutrophils, the white blood cells that kill bacteria, need adequate oxygen to function properly
Better healing — Higher oxygen levels encourage new blood vessel growth, helping antibiotics reach the infected area more effectively
Clinical outcomes back this up. One published study followed patients with advanced, chronic tibial osteomyelitis and found that combining surgical debridement, antibiotics, and hyperbaric oxygen led to safe, effective infection resolution.
What to Expect
HBOT for refractory osteomyelitis isn't used alone — it works as part of a coordinated plan with your surgeon, infectious disease specialist, and hyperbaric medicine team. Treatment typically means daily sessions breathing 100% oxygen in a pressurized chamber over several weeks, alongside your ongoing surgical and antibiotic care.
Is It Covered by Medicare?
Yes. Chronic refractory osteomyelitis is explicitly listed as a covered condition under Medicare's National Coverage Determination for hyperbaric oxygen therapy (NCD 20.29), meaning eligible patients can receive reimbursement when treatment is medically necessary.
Safety and Expert Care
As a Medicare-covered, FDA-cleared indication, HBOT for refractory osteomyelitis reflects decades of clinical research. At Bay Area Hyperbarics, treatment is provided under expert care with patient safety as the top priority at every step.
Consult a healthcare provider before starting any new treatment. This article is for educational purposes and does not replace medical advice from your care team.
If you or a loved one has a bone infection that hasn't responded to standard treatment, reach out to our team to learn whether hyperbaric oxygen therapy may help.
