Spondylodiscitis is an inflammation of the intervertebral disc and the neighbouring vertebral bodies in the spine, caused by bacteria or, less commonly, other pathogens.
What happens with spondylodiscitis?
At the centre is an infection that takes place between two vertebrae: the intervertebral disc, the flexible "cushion" between the vertebral bones, becomes inflamed together with the surrounding bone structures. Bacteria often reach this area through the bloodstream, for example after surgery, during existing infections elsewhere in the body, or when the immune system is weakened. The result is a gradual breakdown of the disc and the neighbouring vertebral bodies, a process that can have serious consequences if left untreated.
How does spondylodiscitis make itself known?
Typical signs include strong, persistent back pain that often does not improve even at rest. Unlike the usual back pain that follows physical activity or movement, the discomfort tends to be constant and gets worse when pressure is applied to the affected area. Fever, a general feeling of being unwell, and night sweats can also occur, though they do not always appear. Some people notice weakness or numbness in their arms or legs if the inflammation is pressing on nearby nerves.
Because back pain is so common, spondylodiscitis often goes unrecognised at first. However, if the pain lasts for days or weeks, gets worse, or if any signs of paralysis appear, medical advice should be sought without delay.
Causes and risk factors
Bacteria, particularly staphylococci, are usually responsible. They can travel through the bloodstream from other infection sites in the body, such as after pneumonia, a urinary tract infection, or surgery, and reach the spine. Medical procedures involving the spine, such as injections or operations, also increase the risk. People with a weakened immune system, diabetes, drug dependency, or chronic illnesses are especially vulnerable.
In rare cases, fungi or other microorganisms can cause spondylodiscitis, for example in people with a severely compromised immune system.
Is spondylodiscitis dangerous?
Any inflammation in the area of the spine should always be taken seriously. Without treatment, serious complications can develop: the inflammation can spread, lead to abscesses, or even damage the spinal cord. In the worst case, permanent paralysis or a life-threatening blood infection (sepsis) can occur. This is why early diagnosis and treatment are so important.
The idea of having an infection in the spine often causes great worry. Many people wonder whether they will make a full recovery or whether lasting damage will remain. The good news is that with timely and targeted treatment, the chances of recovery are generally good today, even though therapy requires patience.
How is spondylodiscitis diagnosed?
Diagnosis relies on several investigations. A thorough conversation about symptoms and possible risk factors comes first. Blood tests often show raised inflammatory markers. Imaging methods such as magnetic resonance imaging (MRI) provide detailed pictures and make the inflammation visible. Sometimes a tissue sample is taken to identify the exact pathogen. This is important in order to choose the right treatment.
Treatment options for spondylodiscitis
The aim is to fight the infection and prevent lasting damage. The main approach is a consistent course of antibiotic therapy, often lasting several weeks, targeted specifically at the bacteria identified. At first, this is usually given as an infusion directly into the bloodstream, and later it may be switched to tablets. It is important to take the medication exactly as prescribed and not to stop treatment early, even if the symptoms begin to ease.
Bed rest and reducing strain on the spine are often necessary in the early phase. In some cases, a special brace is used to stabilise the affected area. In severe cases, or when abscesses form, surgery may be needed. During surgery, the inflamed tissue is removed and the spine is stabilised.
How long does recovery take?
Recovery can take several weeks to months. Patience is required, as the inflammation subsides slowly and the bones need time to heal. In most cases, a full recovery is possible if treatment begins early and is carried out consistently. Lasting damage is rare, but can occur if the infection is identified too late or not treated adequately.
What can be done at home?
During treatment, it is important to follow medical advice and avoid physical strain. After the acute phase, targeted physiotherapy and gentle movement help to strengthen the back muscles and regain mobility. Regular check-ups with a doctor are advisable to monitor the progress of recovery.
Spondylodiscitis is a serious but treatable condition, provided it is recognised in time and treated consistently. Anyone experiencing persistent, unusually severe back pain, or who develops back problems shortly after an infection, should not hesitate to seek medical help.
