Have you just been diagnosed with osteomyelitis in one of your bones in the body? Are you wondering about the treatment options available and the recovery timeline?
As a radiographer I see many people who come in x-ray with osteomyelitis mainly of the feet.
I will rely on my knowledge and of course on scientific publication to answer the commonly asked questions about the condition,
Happy reading!😀 and feel free to ask questions in the comments or share your own experience.🙏
Last updated: June, 2025. Written by Juliet Semakula, a diagnostic radiographer.
| In a nutshell:· Osteomyelitis is a common condition that can be life threatening if not treated on time, But it can be cured completely.· The main line of treatment is antibiotics; Surgery may also be recommended in certain cases. Osteomyelitis takes a few days, weeks to a few months to heal. This will depend on what type you have and your condition. |
▶️What is Osteomyelitis?
Osteomyelitis translated from Greek, meaning inflammation of the bone marrow (osteon, bone, myelos, marrow).
Osteomyelitis is a bone infection, or an inflammatory development accompanied by bone destruction and caused by an infecting microorganism.
The infection can be limited to a single portion of the bone or can involve several regions, such as marrow, cortex, periosteum, and the surrounding soft tissue (lew,2004)
Osteomyelitis can occur at any age and can involve any bone of your body.
The most frequent locations I have seen in x-ray are.
♦️️ Osteomyelitis of the feet.
♦️Vertebral osteomyelitis.
♦️Prosthetic hip joint infection
Location of osteomyelitis in men and women, the most common areas (Image from Lew,2004)
▶️Is osteomyelitis considered sepsis?
No osteomyelitis is not considered as sepsis, but it can lead to sepsis, if left untreated, it can spread to the bloodstream, potentially leading to sepsis.
In short: Osteomyelitis is a localized bone infection caused by a bacterial infection of the blood. that can evolve into a systemic infection or bacteraemia (sepsis) if not treated promptly.
This can be a life-threatening condition, especially if left untreated or if the infection spreads to other parts of the body.
It is very important to see a doctor if you think you are having some of the symptoms below.
▶️What are some of the symptoms of osteomyelitis?
Patients I see in radiology present with a variety of symptoms ranging from:
⚫An open wound.
⚫Exposing fractured bone.
⚫An indolent draining fistula, to no skin lesion.
⚫Localised swelling and warmth on the affected area.
⚫Bone pain tenderness on clinical examination.
⚫Back pain if you have vertebral osteomyelitis.
⚫Osteoporotic fracture.
⚫A high temperature and chills
⚫A limb more common in children.
⚫Some people loss weight
⚫Night sweats.
▶️Diagnosis and Confirmation of osteomyelitis requires several diagnostic procedures.
Diagnosing osteomyelitis is often a difficult challenge, as there are vast variations in clinical presentation. Early diagnosis is the key to the successful treatment of osteomyelitis
Normally this done by:
🟣Blood tests: Isolation by taking blood cultures, generally only in haematogenous osteomyelitis.
🟣Direct biopsy from the involved bone is taken and tested.
🟣Deep specimens should be obtained from up to five sites around the implant at debridement.
🟣Ultrasonography can be useful for early diagnosis in acute osteomyelitis or for detection of a purulent collection in soft tissue
🟣CT provides excellent definition of cortical bone and a fair assessment of the surrounding soft tissues.
🟣MRI also reveals early bony oedema and is therefore most useful for early detection of infection.
🟣Bone scan with nuclear imaging to identify cells and tissues that are infected can be seen clearly on the tracer.
🟣X-ray will be able to show soft tissue swelling, narrowing or widening of joint spaces, bone destruction, and periosteal reaction.
Bone destruction, however, is not apparent on plain films until after 10-21 days of infection.
x-ray image showing osteomyelitis of the distal fourth metatarsal and distal third and fourth phalanges (arrows). Cortical disruption and osteolysis are present (Bury,2021).
▶️What are the causes of Osteomyelitis? And influencing risk factors.
Osteomyelitis is primarily caused by bacterial or, less commonly, fungal infections that spread to the bone. Staphylococcus aureus is the most frequent bacterial culprit.
These infections can reach the bone through the bloodstream, from a nearby infection, or through direct introduction via injury or surgery
There are many contributing factors that influence a person to developing osteomyelitis:
▶️Here are some of the possible factors that may influence osteomyelitis infection.
⚪Age factor, when you are old, your bones can become more vulnerable to infection.
⚪Diabetes: Osteomyelitis spreading from diabetic ulcers due to neuropathy and vascular insufficiency most commonly occurs in the bones of the feet: the toes, metatarsal heads, and calcaneum (Armstrong,1998)
⚪Peripheral vascular disease can lead to reduced blood flow to the limbs and hinder the body’s ability to fight infection.
⚪Some intravenous (i.v.) drug use can introduce bacteria directly into the bloodstream.
⚪Surgical implants and wounds can provide entry points for bacteria.
⚪Immunodeficiency due to disease such as HIV or immunosuppressant drugs can increase susceptibility.
▶️What are the non-infectious complications of osteomyelitis
With the onset of infection, there are various complications related to the bone that are not directly related to the infection but are a result of the infection
When your bone is affected by osteomyelitis infection, this can lead to other bone complications such as:
⚪The presence of infection causes osteoblast cell death, thus preventing new bone formation.
⚪This weakens the bone, which can result in pathological bone fractures.
⚪Surgical debridement of the bone can also result in weakening of the bone, which may further result in bone fractures if the bone is not supported sufficiently.
⚪ Vertebral osteomyelitis can lead to neurological vertebral compromise leading to motor weakness, paraparesis, and even paralysis, all caused by abscess formation compressing various parts of the spine, such as the spinal cord and nerve root.
⚪ In children, osteomyelitis at the growth plates of long bones may interrupt normal growth.
⚪These with a chronic draining osteomyelitis sinus are also at increased risk of development of a squamous cell carcinoma
Kavanagh,2018
▶️What is the progression of osteomyelitis
Osteomyelitis is often classified by the location within the bone, extent of dispersion, and source of infection.
Progression of osteomyelitis starts from:
🔴An abscess developing from a localised initial infection that constricts the blood flow to the area (Image A)
🔴Resulting in an avascular region of necrotic bone tissue called the sequestrum (Image B)
🔴Followed by development of new bone surrounding the sequestrum, termed the involucrum, which may also have a sinus tract through which purulence can escape (Image c)
Image from: Kavanagh,2018
▶️What are the different treatment options for Osteomyelitis?
The various types of osteomyelitis require differing medical and surgical therapeutic strategies. For example, treatment for these four types will require a different approach in each case.
1️⃣Osteomyelitis secondary to a contiguous focus of infection (after trauma, surgery, or insertion of a joint prosthesis)
2️⃣Osteomyelitis secondary to vascular insufficiency occurs in people with diabetic and in almost all cases follows a foot soft-tissue infection that spreads to bone.
3️⃣Osteomyelitis due to haematogenous origin is seen mostly in prepubertal children and in elderly patients and is characterised by nidation of bacteria within sometimes only slightly injured bone, presumably seeded by bacteria not apparent but present in the blood.
4️⃣Acute osteomyelitis evolves over several days or weeks defined as long-standing infection that evolves over months or even years,
5️⃣Osteomyelitis of the jaw is a serious bone infection affecting the mandible, caused by bacterial or fungal infection of the bone marrow and surrounding tissues.
6️⃣Chronic osteomyelitis associated with avascular necrosis of bone and formation of sequestrum (dead bone)
Lew,2004
Any type of osteomyelitis can develop from the acute stage and continue into the chronic stage of the disease
Treatment of osteomyelitis will depend on the type and how deep the source of infection has spread to the bone.
Osteomyelitis therapy requires an interdisciplinary approach involving a combination of patient evaluation, antibiotic therapy, and surgical intervention
Depending on the location of osteomyelitis infection, one treatment or another may be more appropriate.
Treatment options: conservative management
🟤Intravenous (IV) antibiotics are usually the first line of treatment for severe or acute osteomyelitis. Your doctor will choose an antibiotic based on the germ causing the infection.
🟤Oral antibiotics Once the infection is under control with IV antibiotics, oral antibiotics may be prescribed for several weeks to ensure the infection is completely eradicated.
🟤Drainage to remove the collection of pus or abscesses to remove the infection.
🟤Foreign object removal: if the infection is related to a foreign object like a surgical implant it may need to be removed.
🟤Medication: some osteomyelitis such as fungal may need antifungal medication for a period (months) to help with treatment.
🟤Restore blood flow to the bone by putting short-term fillers in the space until the area is ready to have bone graft or tissue graft which will help the bone repair damaged blood vessels and form new bone.
Lima et al 2014
Surgery
If conservative management fails, some surgeons may purpose an operation to remove necrotic and infected bone.
In most cases osteomyelitis infection is completely removed but this always depends on the extent of the infection and your overall health.
So, it’s not always guaranteed to completely remove the infection. But in your case just stay optimistic that you will recover well.
▶️How long is the treatment? Follow-up assessment during therapy
There are no data from controlled trials that suggest or track the optimal duration of therapy and healing timeline.
However, the recommended duration ranges from 4 to 6 weeks to several months depending on severity and type of treatment. (Zimmerli, 2010)
🟤You will return to clinical for assessment at 4 weeks to assess the response to treatment.
🟤In the case of a large abscess that has not been surgically treated, its resolution should be confirmed by repeat MRI before antibiotic therapy is discontinued.
🟤This can take 12 weeks or more to fully recover, remember we all recover differently, so many factors will play in your recovery.
I know it’s frustrating not to have a precise answer to the question “how long will my osteomyelitis last?”, but it’s a reality: nobody can predict that, even with a full treatment.
▶️Can osteomyelitis be cured? Why is it sometimes difficult to cure?
Yes, osteomyelitis is often curable, especially if treated promptly and appropriately.
However, the success of treatment can vary depending on the type of osteomyelitis and the individual’s health
The sooner treatment is started, the better the chances of a complete recovery.
Many parameters will influence the time it takes for the infection to completely go away.
Here are two examples of very different healing.
| Example 1: 13-year-old boy had pain in the ankle and the source of infection was his tibia shinbone. |
Surgery was done to clear the infection after other antibiotics treatments had failed.
🟤His pain levels decreased which seemed like a good sign.
After a few months the pain came back, another surgery was done, after clearing the infection, bone grafting was done.
🟤Within 6 weeks, he was feeling pain free, after a few months he began walking unsupported and he recovered completely thou the journey was not ease.
| Example 2: A 12-year girl had pain in her leg for a while. Following a series of tests, it was confirmed that part of her femur (thigh bone) was infection |
Surgery was done to remove the infection and antibiotic-loaded rod placed instead.
And after some months a bone graft was taken from her hip bones to repair the infected area.
🟤After months of treatment, she was able to sleep well, engage in sports activities without the fear of being in pain.
What does it mean? Osteomyelitis infection healing will depend on how deep the infection is, your health and the treatment given.
Here is a table with a proposed timeline of recovery if you respond well to treatment.
| Phase | Timeline breakdown |
| Initial improvement | You will start feeling better within 3 to 5 days of beginning antibiotic treatment. |
| Antibiotic therapy | It may last for 4-6 weeks |
| Severe or chronic | You may require longer courses of antibiotics (up to 12 weeks or more) |
| Surgical intervention | Several weeks or months |
| Long-term monitoring | Several months |
For chronic osteomyelitis, this can be difficult to completely eradicate, and there is a risk of recurrence even after treatment.
Reason being:
⏩In some people the bacteria or fungi can lie dormant in the body and return, even after treatment.
⏩The presence of dead bone (necrosis) can occur within the bone, creating an environment where bacteria can thrive and form biofilms bacteria encased in a protective layer, making them highly resistant to antibiotics alone to eradicate the infection that’s why sometimes surgery is recommended.
⏩Osteomyelitis can progress from acute to chronic causing multiple infectious agents and persistent inflammation. This makes it more difficult to eradicate the infection and can lead to long-term complications.
Acute osteomyelitis is generally more treatable than chronic. Successful treatment will almost certainly depend on debridement of infected tissue and the surgical resection of any necrotic bone or prosthetic material.
▶️Does osteomyelitis have to be amputated?
No, osteomyelitis does not always require amputation.
While amputation can be a necessary last resort in severe cases, it is not the primary or only treatment for osteomyelitis.
As we have seen osteomyelitis can be treated and if treatment is started early there is a high chance of fully recovering from the infection.
Amputation can only be considered when the infection is severe and it has spread extensively, or when other treatments have failed to control the infection, particularly if it leads to gangrene or poses a serious threat to the patient’s overall health.
I have seen a few cases in radiology where some people with diabetic who have been affected by osteomyelitis secondary to vascular insufficiency causing a foot soft-tissue infection that spreads to bone leading to foot amputation.
⏩Here is an article about Diabetic foot amputation recovery and preventive tips.
▶️Is osteomyelitis considered a disability?
Yes, if you live in the United Kingdom, Osteomyelitis, a bone infection, can be considered a disability.
If the kind of osteomyelitis you have particularly leads to long-term health issues and significantly impacts your ability to work or perform daily tasks.
The severity and duration of the condition, as well as the resulting functional limitations, will determine whether it meets the criteria for disability under relevant UK legislation .you can visit the government website for more details.(https://www.gov.uk/browse/disabilities/benefits)
In the USA as well osteomyelitis can be considered a disability under Social Security rules if it meets the agency’s definition of disability, meaning it has lasted or is expected to last for at least one year (or result in death)
In Canada under the Canadian human rights Act and employment equity Act, if the kind of osteomyelitis you have is long term and affects your ability to work then you can get disability allowance.
In Germany, osteomyelitis can be considered a disability depending on the severity and impact on the individual’s ability to work and participate in daily life.
So, if you think the kind of osteomyelitis you have is preventing you from doing your normal activities, then you can contact your employment department to see how you can be helped.
▶️What can be mistaken for osteomyelitis?
Sometimes when you go to the doctor’s osteomyelitis can be mistaken for other conditions particularly when it presents with bone pain, swelling and warmth.
However, different tests are done to rule out anything else before you are given a proper diagnosis.
Potential misdiagnoses conditions which have symptoms like osteomyelitis.
⬛Soft tissues infection.
⬛Bone fractures
⬛Bone tumours are both benign and malignant.
⬛Charcot arthropathy (neuropathic joint) can cause joint dislocation and fractures which can be confused with the changes seen in osteomyelitis.
⬛Gout can cause joint inflammation and pain which is like osteomyelitis.
⬛Bursitis
⬛Infections such as cellulitis or septic arthritis
⬛Osteonecrosis (avascular necrosis) can cause bone death due to sufficient blood supply.
We have come to the end of this article; hope I have answered some of your common questions. Wishing you a quick recovery.🙋
Any questions let’s meet in the comments section below.
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📚Source:
Lew DP, Waldvogel FA. Osteomyelitis. Lancet. 2004 Jul 24-30;364(9431):369-79. doi: 10.1016/S0140-6736(04)16727-5. PMID: 15276398.
LE Jauregui, CL Senour LE Jauregui (Ed.), Diagnosis and management of bone infections, Marcel Dekker, New York (1995), pp. 37-108
Kavanagh N, Ryan EJ, Widaa A, Sexton G, Fennell J, O’Rourke S, Cahill KC, Kearney CJ, O’Brien FJ, Kerrigan SW. Staphylococcal Osteomyelitis: Disease Progression, Treatment Challenges, and Future Directions. Clin Microbiol Rev. 2018 Feb 14;31(2):e00084-17. doi: 10.1128/CMR.00084-17. PMID: 29444953; PMCID: PMC5967688.
Armstrong DG, Lavery LA, Harkless LB. Validation of a diabetic wound classification system. The contribution of depth, infection, and ischemia to risk of amputation. Diabetes Care. 1998 May;21(5):855-9. doi: 10.2337/diacare.21.5.855. PMID: 9589255.
Zimmerli W. Clinical practice. Vertebral osteomyelitis. N Engl J Med. 2010 Mar 18;362(11):1022-9. doi: 10.1056/NEJMcp0910753. PMID: 20237348.
Lima AL, Oliveira PR, Carvalho VC, Cimerman S, Savio E; Diretrizes Panamericanas para el Tratamiento de las Osteomielitis e Infecciones de Tejidos Blandos Group. Recommendations for the treatment of osteomyelitis. Braz J Infect Dis. 2014 Sep-Oct;18(5):526-34. doi: 10.1016/j.bjid.2013.12.005. Epub 2014 Apr 1. PMID: 24698709; PMCID: PMC9428226.
Bury DC, Rogers TS, Dickman MM. Osteomyelitis: Diagnosis and Treatment. Am Fam Physician. 2021 Oct 1;104(4):395-402. PMID: 34652112.