What should you know about ankle osteomyelitis?

Microbes may reach bone through the bloodstream, an open wound, nearby infected tissue, or after an injury or operation. Treatment commonly uses antibiotics selected for the organism; some cases also need surgery to drain infection or remove unhealthy tissue.

Osteomyelitis can cause focused bone pain, warmth, swelling and redness around the ankle. Fever, chills, fatigue, drainage from a wound or a wound that does not heal may accompany it, but systemic symptoms are not always present. A deeper or slow-moving infection may produce persistent pain without dramatic skin changes.

Clinicians consider recent wounds, ulcers, surgery, fractures, implanted hardware and infections elsewhere in the body. Blood tests can look for inflammation and infection, while imaging evaluates bone and nearby soft tissues. Blood, wound or bone samples may be needed to identify the organism and select an effective medicine.

Do not squeeze or probe a draining wound. Cover it with a clean dressing, reduce pressure on the area and obtain medical care. Tell the clinician about diabetes, circulation problems, immune-suppressing medicines, recent antibiotics, operations and any metalwork in the ankle, because these details affect investigation and treatment planning.

Complete antibiotics exactly as prescribed and attend planned blood tests, wound checks and imaging. Surgery may be required when there is an abscess, dead bone, infected hardware or tissue that prevents antibiotics from controlling the infection. When removal leaves a bone defect, reconstruction may be discussed after infected tissue has been addressed.

Seek urgent assessment for a hot, swollen and increasingly painful ankle with fever or chills; pus or a bad-smelling discharge; spreading redness; confusion; marked weakness; or rapid deterioration. A wound that exposes bone or follows a puncture near the ankle also needs prompt medical attention.

People with diabetes, reduced sensation, poor circulation or a weakened immune system should arrange early review for any new ankle wound, colour change or unexplained swelling. Lack of pain does not make a wound harmless when sensation is impaired.

Ask which bone and surrounding tissues are involved, whether a sample has identified the organism, and how treatment response will be monitored. Confirm how to care for the wound, whether weight bearing is permitted, what medicine effects need attention and whether surgical cleaning or removal of hardware is being considered.