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What is septic arthritis?

Septic arthritis (SA), or infectious arthritis, is an infection of the fluid and tissues of a joint. It mainly occurs due to infectious agents that reach the joints via the bloodstream or by injury which facilitates the entry of germs into the joint. It is a severely disabling condition that affects all age groups. In infants, it occurs more commonly due to their innately deficient defence mechanisms. The incidence in new born babies in India is 1 in 1500.

What are its main signs and symptoms?

SA of the knee and hip is commonly seen in older children and adults, whereas SA of the hip and shoulder is common in newborns. The most common symptoms include pain, fever, swelling, tenderness, redness and limping. Symptoms differ with age. Usually, a single joint is affected, but in rare cases, multiple joints may be affected. The intense joint pain can lead to worsening or further immobilisation of the affected joint. Reactive arthritis can also occur due to infection in different parts of the body.

Infants and new-borns may exhibit the following symptoms:

  • Crying when the affected joint is moved
  • Fever
  • Not able to move the infected joint
  • Fussiness

What are the main causes?

It is mainly caused by bacteria and rarely by fungi or viruses.

Organisms that commonly cause SA are:

  • Staphylococci
  • Haemophilus influenza
  • Gram-negative bacilli
  • Streptococci

Bacterial entry into the joint space can be through:

  • Underlying infection from other parts of the body
  • Infected wounds
  • Open fractures that penetrate the skin
  • Foreign body penetrating the skin
  • Trauma

How is it diagnosed and treated?

Doctors usually diagnose SA by taking a complete medical history, performing a physical examination and conducting laboratory tests. The following tests may be recommended:

  • Joint fluid analysis: To detect the infectious agent in the joint fluid.
  • Blood tests: To check the severity of infection and immunologic reactions, if any.
  • Microbiological analysis: To determine the type of bacteria/fungus/virus in the body.
  • Imaging tests: X-rays, ultrasound and MRI of the affected joint.

The treatment for SA mainly focuses on the right choice of antibiotics depending on the organism causing infection and the tolerance of the patient towards these medicines. The treatment may last for two to six weeks. Joint drainage using a needle or by arthroscopy is often done for the antibiotics to work. Open surgery may also be done for joints that are difficult to drain. Joint drainage helps to eradicate the infection, relieve pain and hasten recovery.

Other symptomatic treatments include:

  • Pain and fever relieving medications.
  • Physical therapy to maintain muscle strength and range of motion of the joint.
  • Use of splints to relieve joint pain.
  • Limit unnecessary movement of the joint.

Self-care tips:

  • It is most important to take ample rest and protect the affected joint from external pressure or damage.
  • Elevating the joint above the level of the heart and use of cold compresses may help relieve pain.
  • After recovery, engage in gentle exercises to regain muscle strength and range of motion.
  • Foods rich in omega-3 fats can help reduce inflammation and aid in the treatment. These are:
    • Oily fish like salmon and sardines
    • Linseeds
    • Walnuts
  1. Medicines for Septic Arthritis (SA)

Medicines for Septic Arthritis (SA)

Medicines listed below are available for Septic Arthritis (SA). Please note that you should not take any medicines without doctor consultation. Taking any medicine without doctor's consultation can cause serious problems.

Medicine NamePack SizePrice (Rs.)
Blumox CaBLUMOX CA 1.2GM INJECTION 20ML103
BactoclavBACTOCLAV 1.2MG INJECTION99
Mega CvMEGA CV 1.2GM INJECTION98
Erox CvEROX CV DRY SYRUP45
MoxclavMOXCLAV 91.4MG DROPS 10ML67
Moxikind CvMOXIKIND CV 375MG TABLET52
CetilCETIL 1.5GM TRADE INJECTION218
PulmocefPULMOCEF 500MG TABLET 4S272
OmnikacinOmnikacin 100 Mg Injection26
ClavamCLAVAM 1GM TABLET 10S223
AltacefAltacef 1.5 Gm Injection334
AdventADVENT 1.2GM INJECTION104
AugmentinAUGMENTIN 1.2GM INJECTION 1S105
ClampCLAMP 30ML SYRUP45
Ceftum TabletCeftum 125 Mg Tablet88
Stafcure LzStafcure Lz Tablet277
ZocefZOCEF 250MG INJECTION0
Amicin InjectionAmicin 100 Mg Injection17
Mikacin InjectionMikacin 100 Mg Injection18
Zemox ClZemox Cl 1000 Mg/200 Mg Injection135
AceclaveAceclave 250 Mg/125 Mg Tablet85
Cat XpCat Xp 250 Mg Tablet68
CamicaCamica 100 Mg Injection14
Amox ClAmox Cl 200 Mg/28.5 Mg Syrup39
ZoclavZoclav 500 Mg/125 Mg Tablet159

Do you or anyone in your family have this disease? Please do a survey and help others

References

  1. R Usha Devi, S Mangala Bharathi, M Anitha. Neonatal septic arthritis: Clinical profile and predictors of outcome. Institute of Child Health and Hospital for Children. Vol 4 Issue 1 Jan - Mar 2017
  2. MedlinePlus Medical Encyclopedia: US National Library of Medicine; Infectious Arthritis Also called: Septic arthritis
  3. Arthritis Foundation. Infectious Arthritis. Atlanta,GA; [internet]
  4. The Children’s Hospital of Philadelphia. Septic Arthritis. Philadelphia; [internet]
  5. MedlinePlus Medical Encyclopedia: US National Library of Medicine; Septic arthritis
  6. Better health channel. Department of Health and Human Services [internet]. State government of Victoria; Arthritis and diet
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