Infected Knee
What is an Infected Knee?
An infected knee, or septic arthritis of the knee, is a serious condition where bacteria infect the knee joint, leading to pain, swelling, and systemic symptoms.
- Bacterial infection within the joint
- Severe pain, swelling, and fever
Overview of the Condition
It requires urgent medical intervention to prevent joint destruction and systemic complications.
Symptoms
- Severe knee pain and swelling
- Fever and chills
- Redness and warmth over the joint
Causes
Often caused by bacterial infections, which may occur after trauma, surgery, or hematogenous spread.
Diagnosis
Diagnosis is confirmed by joint aspiration, laboratory tests, and imaging studies.
Treatment Options
- Intravenous antibiotics
- Joint drainage and debridement
- Supportive care and close monitoring
Conservative Management
Initial management focuses on aggressive antibiotic therapy and joint rest.
Rehabilitation Exercises
- Passive range-of-motion exercises after infection control
- Gradual strengthening exercises
- Functional rehabilitation under supervision
Surgical Options
Surgical debridement and irrigation are often necessary to clear the infection.
Anatomy Overview
The knee joint consists of synovial-lined compartments which, when infected, can lead to rapid joint destruction.
Affected Areas
- Knee joint space
- Surrounding soft tissues
Frequently Asked Questions
QuestionAnswerIs an infected knee a medical emergency?Yes, prompt treatment is critical to prevent permanent joint damage.How long does treatment last?Treatment duration varies but often requires several weeks of antibiotics and rehabilitation.
Prevention Strategies
- Proper wound care and hygiene
- Prompt treatment of knee injuries
- Avoiding invasive procedures when possible
Related Conditions
- Septic arthritis in other joints
- Osteomyelitis
Additional Treatments
Long-term follow-up with infectious disease specialists and physical therapy are crucial.
A Quick, Clear First Step Toward Joint Pain Relief
In under 2 minutes, OrthoCheck gives you a likely diagnosis—no appointment needed. If follow-up care is recommended, we’ll connect you with a top-rated orthopedic specialist near you.