Joint replacement surgery is one of the most successful procedures in modern orthopedics. Whether performed to treat severe arthritis, joint degeneration, or irreversible damage caused by injury, replacing a damaged joint with an artificial implant can dramatically reduce pain, restore mobility, and improve quality of life. Every year, millions of people undergo knee and hip replacement surgery and return to their normal routines with excellent long-term outcomes.
If you’re considering this procedure or want to understand your treatment options, consulting Best Doctors for Knee Replacement Surgery in Delhi can help you make an informed decision. Choosing an experienced orthopedic specialist and the right hospital plays an important role in achieving successful surgical outcomes and long-term joint health.
However, like every major surgical procedure, joint replacement is not completely free from complications. While most patients recover without any significant issues, one complication continues to concern both patients and orthopedic surgeons more than any other—infection after joint replacement surgery, also known as prosthetic joint infection (PJI).
Although this complication is relatively uncommon, it is considered one of the most difficult conditions to manage because it involves an artificial implant inside the body. Once bacteria attach themselves to the implant, treating the infection becomes far more challenging than treating an ordinary bacterial infection. If left untreated, it can damage the tissues surrounding the joint, affect the stability of the implant, and sometimes require additional surgery.
The encouraging news is that orthopedic care has advanced considerably over the past few years. Along with established treatment methods, researchers and orthopedic specialists are continuously improving techniques to diagnose infections earlier, preserve implants whenever possible, and improve long-term patient outcomes. Newer strategies, including enhanced surgical procedures and ongoing research into bacterial biofilms, are helping shape the future of prosthetic joint infection management.
In this guide, we’ll explain what prosthetic joint infections are, why they occur, who is at greater risk, and why early recognition plays such an important role in successful treatment.
A prosthetic joint infection occurs when bacteria or other microorganisms infect the tissues surrounding an artificial joint after replacement surgery.
Unlike a routine skin infection, this type of infection involves a medical implant made of metal, ceramic, or specialized plastic materials. These implants are designed to function safely inside the body for many years, but if bacteria reach their surface, they can attach firmly and become difficult to remove.
The infection may involve:
- The artificial implant itself
- The surrounding bone
- Muscles and soft tissues around the joint
- The surgical wound in some cases
One important point patients should understand is that prosthetic joint infection does not always develop immediately after surgery. While some infections appear during the first few weeks of recovery, others may occur months or even years later. This is why patients should remain aware of warning signs even long after their surgery has been completed.
Why Is Infection Such a Serious Complication?
Among all complications associated with joint replacement surgery, infection is often considered the most challenging to treat.
The reason lies in the artificial implant.
Under normal circumstances, the body’s immune system can identify bacteria and work together with antibiotics to eliminate an infection. However, an artificial joint behaves differently from natural tissue.
Once bacteria reach the surface of an implant, they can attach themselves firmly and begin multiplying. As they grow, they become increasingly difficult for the immune system to eliminate. This makes implant-related infections much more complicated than ordinary bacterial infections affecting the skin or muscles.
If the infection is allowed to progress, it can:
- Damage the tissues surrounding the implant.
- Cause persistent pain and swelling.
- Reduce the stability of the artificial joint.
- Delay recovery.
- Increase the need for revision surgery.
- Affect overall quality of life.
Because of these risks, orthopedic surgeons place great emphasis on early diagnosis and prompt treatment whenever infection is suspected.
Can Infection Develop Years After Surgery?
Many patients believe that once their surgical wound has healed, they no longer need to worry about infection.
In reality, prosthetic joint infections can develop at different stages.
Some infections occur shortly after surgery because bacteria enter the joint during or immediately after the procedure. Others develop much later when bacteria from another part of the body travel through the bloodstream and settle on the artificial joint.
This means that even patients who underwent successful knee or hip replacement several years ago should remain attentive to any unusual symptoms affecting the replaced joint.
Also read: Faster Recovery After Knee Replacement: Tips & Advances
Who Is More Likely to Develop an Infection?
Although anyone can develop a prosthetic joint infection, certain medical conditions make the risk higher because they reduce the body’s ability to fight bacteria or slow the healing process.
Patients who require closer monitoring include those with:
Diabetes
Poorly controlled blood sugar levels can impair wound healing and weaken the body’s natural immune response, increasing the likelihood of postoperative infections.
Kidney Disease
Reduced kidney function can affect several body systems, including the immune system, making infections more difficult to control.
Liver Disease
The liver plays a major role in maintaining overall health and supporting immune function. Chronic liver disorders may increase the risk of complications after surgery.
Thyroid Disorders
Certain thyroid conditions may influence metabolism, healing, and recovery after major orthopedic procedures.
Rheumatoid Arthritis
This autoimmune condition affects the immune system and may increase the risk of infection, particularly in patients receiving medications that suppress immunity.
Ankylosing Spondylitis and Other Inflammatory Disorders
Chronic inflammatory joint diseases may also contribute to a higher risk of postoperative infections.
Reduced Immunity
Any condition that weakens the immune system—whether due to illness, medication, or another underlying cause—can make it more difficult for the body to fight bacterial infections.
Recognizing these risk factors before surgery allows doctors to optimize a patient’s health and reduce the chances of postoperative complications.
How Does Infection Reach an Artificial Joint?
One of the most common questions patients ask is how bacteria reach an implant that is safely placed inside the body.
In most cases, prosthetic joint infections occur through one of two pathways.
1. Spread Through the Bloodstream
The most common route is known as hematogenous spread, where bacteria travel through the bloodstream from another infected area of the body.
Common sources include:
- Dental infections
- Urinary tract infections
- Kidney infections
- Chest infections
- Skin infections
- Other untreated bacterial infections
Even something as simple as an untreated dental infection can allow bacteria to enter the bloodstream. Once circulating in the blood, these bacteria may settle on the artificial joint, particularly because implants provide a favorable surface for bacterial attachment.
This is one of the reasons orthopedic surgeons recommend treating active infections before undergoing joint replacement surgery and advise patients to seek prompt treatment for infections even years after the procedure.
2. Direct Contamination During Surgery
The second pathway is direct contamination during the operation itself.
Today, this risk is very low because modern joint replacement surgery follows strict infection-control protocols. Hospitals use sterilized surgical instruments, carefully disinfected operating rooms, and high-quality implants to minimize the possibility of bacterial contamination.
Nevertheless, maintaining these standards is essential because preventing bacteria from reaching the implant during surgery remains one of the most effective ways to reduce postoperative infection.
Why Are Preoperative Tests So Important?
Many patients wonder why they need multiple medical tests before joint replacement surgery, especially if they feel healthy.
These investigations are not merely routine—they are a critical part of infection prevention.
Before surgery, doctors evaluate patients for any hidden infections that could increase the risk of bacteria spreading to the implant after surgery.
Depending on the individual’s health, the evaluation may include screening for:
- Dental infections
- Urinary tract infections
- Chest infections
- Kidney infections
- Other active bacterial illnesses
Doctors also assess chronic medical conditions such as diabetes, thyroid disorders, kidney disease, and liver disease to ensure they are well controlled before surgery.
Addressing these issues beforehand significantly reduces the risk of complications and improves the chances of a smooth recovery.
Why Early Recognition Makes All the Difference
One of the biggest advantages of recognizing an infection early is that it provides doctors with more treatment options.
During the initial stages of infection, there is often a greater possibility of controlling bacteria before they cause extensive damage to the implant or surrounding tissues. In some cases, early treatment may even allow surgeons to preserve the existing implant rather than replacing it.
On the other hand, delaying medical attention gives bacteria more time to spread, making treatment longer and more complex.
For this reason, every patient who undergoes joint replacement surgery should understand that persistent pain, increasing swelling, wound problems, or any unexpected change in recovery should never be ignored.
Recognizing symptoms early and consulting an orthopedic specialist promptly can make a significant difference in protecting the artificial joint an
Symptoms, Diagnosis, and Why Prosthetic Joint Infections Are Difficult to Treat
Understanding the warning signs of a prosthetic joint infection can make a significant difference in the success of treatment. One of the biggest reasons these infections become complicated is that many patients mistake the early symptoms for normal postoperative discomfort. Since pain, swelling, and stiffness are expected after joint replacement surgery, it can be difficult to recognize when recovery is no longer progressing as it should.
The key difference is that normal postoperative symptoms gradually improve, whereas symptoms caused by an infection usually persist, worsen, or suddenly appear after an initial period of recovery. Ignoring these changes may allow bacteria more time to spread around the implant, making treatment increasingly challenging.
Knowing what to look for and seeking timely medical attention can help doctors diagnose the infection before it causes extensive damage.
Common Signs and Symptoms of Infection After Joint Replacement Surgery
Not every patient experiences the same symptoms, and the severity can vary depending on the type of bacteria, the patient’s overall health, and how long the infection has been present. However, there are several warning signs that should never be ignored.
Persistent or Increasing Swelling
Swelling is expected after joint replacement surgery and usually reduces gradually over the following weeks. However, swelling becomes concerning when it continues to increase instead of improving or suddenly returns after it had started to settle.
If the operated joint becomes increasingly swollen, tight, or warm to the touch, it may indicate that inflammation is no longer part of the normal healing process.
Continuous Wound Discharge
One of the strongest indicators of a possible infection is fluid leaking from the surgical incision.
The discharge may appear as:
- Clear fluid that does not stop.
- Yellow or green pus.
- Thick drainage from the stitches.
- A wound that remains moist instead of healing.
Even a small amount of persistent drainage should be evaluated because bacteria may already be affecting the tissues around the implant.
Pain That Continues to Worsen
Pain after surgery is expected, but it should gradually decrease as healing progresses.
Patients should become concerned when:
- Pain remains severe despite recovery.
- It becomes progressively worse instead of improving.
- A sudden increase in pain occurs after several weeks of satisfactory recovery.
- Walking becomes more painful than before.
- Daily activities that were previously manageable become difficult again.
Persistent or worsening pain is one of the earliest symptoms that orthopedic surgeons carefully evaluate when considering a prosthetic joint infection.
Fever
High fever may occur in some patients with prosthetic joint infections, although it is not always present.
Patients with low-grade or chronic infections may not develop a noticeable fever, which is why the absence of fever does not rule out infection.
However, fever combined with increasing joint pain, swelling, or wound discharge should always prompt immediate medical evaluation.
Reduced Joint Function
A patient recovering well after joint replacement surgery should gradually regain movement and strength through physiotherapy.
If the replaced joint suddenly becomes stiff or difficult to move, or if walking becomes increasingly challenging after initial improvement, the possibility of infection should be investigated.
Loss of function often indicates that the infection is beginning to affect the surrounding tissues and the stability of the implant.
Don't Ignore the Symptoms—or Self-Medicate
Many people believe that antibiotics are the answer to every bacterial infection. While antibiotics are an important part of treatment, taking them without medical supervision can actually make the situation more complicated.
Starting antibiotics before consulting an orthopedic surgeon may:
- Mask important symptoms.
- Make laboratory tests less accurate.
- Delay identification of the bacteria causing the infection.
- Reduce the effectiveness of targeted treatment later.
For these reasons, patients who develop suspicious symptoms after joint replacement surgery should avoid self-medication and consult their orthopedic surgeon as soon as possible.
Why Antibiotics Alone Are Often Not Enough
A common question patients ask is, “If bacteria are causing the infection, why can’t antibiotics cure it?”
The answer lies in the unique way bacteria behave around artificial implants.
Unlike natural tissues, the metal and plastic surfaces of a joint replacement provide an ideal environment for bacteria to attach themselves. Once attached, they begin producing a protective layer known as a biofilm.
This is what makes prosthetic joint infections very different from routine infections.
Understanding Biofilms
A biofilm is a thin but highly protective layer produced by bacteria after they settle on the surface of an implant.
Think of it as a shield that surrounds the bacteria.
Within this protective layer:
- Bacteria continue multiplying.
- The body’s immune system struggles to recognize them.
- Antibiotics cannot penetrate as effectively.
- The infection becomes much more difficult to eliminate.
This explains why many prosthetic joint infections cannot be cured with antibiotics alone.
Even if antibiotics reduce bacterial activity temporarily, microorganisms hidden inside the biofilm may survive and allow the infection to return later.
Researchers worldwide are actively studying therapies that can break down bacterial biofilms, as these treatments may significantly improve infection management in the future.
How Doctors Diagnose a Prosthetic Joint Infection
Because symptoms alone cannot confirm an infection, orthopedic surgeons use a combination of clinical examination and specialized investigations before deciding on treatment.
The goal is not only to confirm the presence of infection but also to identify the bacteria responsible so that treatment can be tailored accordingly.
Clinical Evaluation
The diagnostic process begins with a detailed examination.
Your orthopedic surgeon will assess:
- Your symptoms.
- The appearance of the surgical wound.
- Joint swelling.
- Pain levels.
- Range of motion.
- Ability to bear weight.
This initial assessment helps determine whether further investigations are required.
Blood Tests
If infection is suspected, blood tests are usually performed to measure infection-related markers.
These tests indicate whether the body is responding to an inflammatory or infectious process.
Although blood tests alone cannot confirm a prosthetic joint infection, elevated markers often suggest that further evaluation is necessary.
They are also useful for monitoring the patient’s response to treatment over time.
Joint Aspiration
One of the most important investigations for confirming a prosthetic joint infection is joint aspiration.
During this procedure:
- A sterile needle is inserted into the affected joint.
- Fluid surrounding the implant is withdrawn.
- The sample is sent to a laboratory for detailed analysis.
The laboratory checks for:
- The presence of bacteria.
- Increased inflammatory cells.
- Infection-related markers.
- The type of microorganism causing the infection.
Identifying the specific bacteria allows doctors to prescribe antibiotics that are more likely to be effective.
Tissue Sampling During Surgery
If surgery becomes necessary, orthopedic surgeons often collect tissue samples directly from around the implant.
These samples help:
- Confirm the diagnosis.
- Identify the exact organism responsible.
- Determine the most appropriate antibiotic therapy.
- Improve the chances of eliminating the infection completely.
Targeted treatment based on laboratory findings is generally far more effective than relying on broad-spectrum antibiotics alone.
Why Early Diagnosis Changes Everything
Time is one of the most important factors in managing prosthetic joint infections.
When an infection is detected within the first few weeks, surgeons may be able to preserve the original implant using specialized procedures designed for early infections.
However, once bacteria remain around the implant for a prolonged period, the biofilm becomes more established, making treatment significantly more difficult. In these cases, more extensive revision surgery is often required.
For this reason, patients should never ignore persistent pain, swelling, wound discharge, or any unexpected change in recovery.
Prompt evaluation not only improves the likelihood of controlling the infection but may also reduce the need for complex surgical procedures and improve long-term outcomes.
Treatment Options for Infection After Joint Replacement Surgery
Once a prosthetic joint infection has been confirmed, the next step is choosing the most appropriate treatment. There is no single treatment that works for every patient because the management plan depends on several factors, including how long the infection has been present, the condition of the implant, the patient’s overall health, and the type of bacteria causing the infection.
The primary goals of treatment are to eliminate the infection, preserve joint function whenever possible, relieve pain, and prevent the infection from returning. To achieve this, orthopedic surgeons may recommend different surgical approaches based on the stage of the infection.
Also Read: Knee Replacement Surgery Recovery Time: Week-by-Week Guide
DAIR: Debridement, Antibiotics, and Implant Retention
When an infection is diagnosed early—usually within the first two to four weeks after symptoms begin—surgeons may recommend a procedure known as DAIR (Debridement, Antibiotics, and Implant Retention).
The objective of this procedure is to control the infection while preserving the original implant.
During surgery, the orthopedic team:
- Opens the affected joint.
- Thoroughly washes the joint.
- Removes infected and unhealthy tissue (debridement).
- Replaces the polyethylene liner in knee replacement surgery, where bacteria commonly accumulate.
- Collects multiple tissue samples for laboratory testing.
The tissue samples help identify the exact microorganism responsible for the infection so that antibiotics can be selected accordingly. Patients usually require a prolonged course of antibiotics after surgery, and regular follow-up is essential to monitor recovery.
Because bacteria have had less time to establish themselves, DAIR offers the best chance of preserving the implant when performed early.
Double DAIR: A Newer Approach for Acute Infections
One of the most significant advances in recent years is the introduction of Double DAIR, an enhanced version of the traditional DAIR procedure that is gaining attention in specialized orthopedic centers.
Instead of performing a single surgical washout, Double DAIR involves two planned operations.
During the first procedure, the surgeon performs debridement, replaces the polyethylene component when required, and places antibiotic-loaded beads inside the joint. These beads release antibiotics directly around the infected area while the patient continues systemic antibiotic therapy.
Approximately five to seven days later, a second planned surgery is performed to clean the joint again, remove any remaining infected tissue, exchange components if necessary, and remove the antibiotic beads.
Early clinical studies have shown encouraging infection-control rates in carefully selected patients with acute prosthetic joint infections. Although research is still ongoing, Double DAIR represents an important step forward in improving implant preservation while reducing the risk of persistent infection.
One-Stage Revision Surgery
For selected patients, another treatment option is one-stage revision surgery, also known as single-stage revision arthroplasty.
In this procedure, the infected implant is completely removed, the joint is thoroughly cleaned, and a new implant is inserted during the same operation.
Compared with traditional two-stage revision surgery, this approach avoids a second major operation and may shorten the overall recovery period.
However, one-stage revision is not suitable for every patient. It is generally considered only after careful evaluation of factors such as:
- Timing of the infection.
- Overall health of the patient.
- Bone quality.
- Stability of surrounding soft tissues.
- The type of bacteria involved.
- The condition of the existing implant.
Careful patient selection is essential to achieve successful outcomes with this approach.
Two-Stage Revision Surgery: The Gold Standard for Chronic Infection
When an infection has been present for a longer period, bacteria often become firmly attached to the implant through protective biofilms. In these situations, preserving the original implant is usually no longer possible.
For chronic prosthetic joint infections, the two-stage revision remains the most widely accepted treatment strategy.
Stage One
The first operation focuses entirely on eliminating the infection.
During this surgery, the surgeon:
- Removes the infected implant.
- Thoroughly cleans the joint.
- Removes infected tissue.
- Inserts an antibiotic-loaded cement spacer.
The temporary spacer helps maintain joint space while continuously releasing antibiotics directly into the affected area. Patients also receive intravenous or oral antibiotics based on laboratory findings.
The spacer generally remains in place for three to six months, although the exact duration varies depending on the patient’s recovery.
Stage Two
Once blood tests, clinical examination, and, when necessary, joint aspiration indicate that the infection has been controlled, a second surgery is performed.
The antibiotic spacer is removed, and a new permanent joint implant is inserted.
Although recovery takes longer than other treatment options, this approach has consistently provided reliable infection control for patients with chronic prosthetic joint infections.
The Importance of Individualized Treatment
Modern orthopedic care recognizes that every prosthetic joint infection is unique. Factors such as the timing of infection, bacterial species, implant stability, and the patient’s medical condition all influence treatment decisions.
This is why patients benefit from evaluation by an experienced orthopedic team that can determine the most appropriate surgical approach rather than relying on a one-size-fits-all solution.
Alongside advances such as Double DAIR and one-stage revision surgery, researchers are also exploring new ways to disrupt bacterial biofilms and improve local antibiotic delivery. These innovations aim to make treatment more effective while preserving joint function whenever possible.
Although newer techniques continue to evolve, one principle remains unchanged: early diagnosis offers the greatest opportunity to control infection before more extensive surgery becomes necessary.
Recovery, Preventing Future Infections, and Long-Term Joint Care
Recovering from a prosthetic joint infection often takes longer than recovering from the original joint replacement surgery. Whether treatment involved DAIR, Double DAIR, or revision surgery, the journey does not end once the infection has been controlled. Careful follow-up, rehabilitation, and preventive measures play a vital role in protecting the new joint and restoring mobility.
The good news is that many patients recover successfully and return to their daily activities after appropriate treatment. The key is to follow medical advice closely and remain alert to any changes that could indicate a recurrence.
What to Expect During Recovery
Recovery varies from patient to patient and depends on factors such as the severity of the infection, the surgical procedure performed, age, overall health, and existing medical conditions.
During the recovery period, patients may require:
- Regular follow-up visits with their orthopedic surgeon.
- Blood tests to monitor infection-related markers.
- A prescribed course of antibiotics.
- Physiotherapy to improve strength, flexibility, and joint movement.
- Periodic imaging or additional investigations when required.
Recovery is usually gradual, and improvements may continue for several months. Comparing your progress with someone else’s recovery is not helpful, as every case is unique.
Also read: Why Physiotherapy Matters After Joint Replacement Surgery
Why Follow-Up Care Is Essential
Even after symptoms improve, routine follow-up appointments remain important. During these visits, your orthopedic surgeon will assess:
- Pain and mobility.
- Wound healing.
- Joint function.
- Blood test results.
- Overall recovery progress.
These assessments help ensure that the infection has resolved completely and allow doctors to identify any potential concerns at an early stage.
Can a Prosthetic Joint Infection Return?
Although many patients recover without further problems, recurrence is still possible in some cases.
The likelihood depends on several factors, including:
- The type of bacteria causing the infection.
- How early treatment was started.
- The patient’s immune health.
- Existing medical conditions.
- The success of the initial surgery and antibiotic therapy.
This is why completing the full treatment plan—including antibiotics, rehabilitation, and scheduled follow-ups—is just as important as the surgery itself.
Tips to Reduce the Risk of Future Infections
While it may not be possible to eliminate the risk entirely, patients can significantly lower their chances of developing another infection by taking a few important precautions..
Manage Chronic Medical Conditions
Conditions such as diabetes, kidney disease, thyroid disorders, and liver disease should be well controlled, as they can affect healing and immune function.
Treat Infections Promptly
Since bacteria can spread through the bloodstream, infections in other parts of the body should never be ignored. Seek medical treatment if you develop:
- Dental infections.
- Urinary tract infections.
- Chest infections.
- Skin infections.
- Kidney infections.
Timely treatment may help prevent bacteria from reaching the artificial joint.
Follow Wound Care Instructions
After surgery, keep the incision clean and dry, follow dressing instructions carefully, and report any unusual redness, swelling, or drainage to your doctor immediately.
Continue Physiotherapy
Regular rehabilitation helps restore strength, improve mobility, and support long-term joint function. Follow the exercise plan recommended by your physiotherapist and orthopedic surgeon.
The Future of Prosthetic Joint Infection Treatment
Research into prosthetic joint infections continues to advance. Orthopedic specialists are exploring new techniques to improve diagnosis, preserve implants, and increase treatment success.
Current areas of progress include:
- Improved surgical techniques such as Double DAIR for selected acute infections.
- Carefully selected one-stage revision surgery, reducing the need for multiple major operations in some patients.
- Advanced methods for delivering antibiotics directly around the implant.
- Research into therapies that target bacterial biofilms, helping antibiotics work more effectively.
- Ongoing clinical studies focused on improving recovery and reducing recurrence rates.
While these innovations are promising, the most effective strategy remains the same—early diagnosis and timely treatment.
How ConsultGrab Supports Patients
Finding the right orthopedic specialist and choosing the right hospital can be overwhelming, especially when additional treatment or revision surgery becomes necessary.
At ConsultGrab, we help simplify this journey by connecting patients with experienced orthopedic surgeons and trusted multi-specialty hospitals through our verified healthcare network in Delhi.
Our care team provides:
- Free expert guidance to help patients understand their condition.
- Quick appointment booking with experienced orthopedic specialists.
- Transparent treatment and cost guidance.
- Assistance in choosing the right hospital based on individual needs.
- Continuous support throughout the treatment journey.
Our goal is to ensure that every patient receives accurate information, timely medical guidance, and access to the appropriate treatment without unnecessary stress or confusion.
Conclusion
Although infection after joint replacement surgery is one of the most challenging complications in orthopedics, it is no longer a condition without effective treatment. Advances in early diagnosis, improved surgical techniques, targeted antibiotics, and newer procedures such as Double DAIR and one-stage revision surgery have expanded the options available to patients.
The most important message is simple: do not ignore persistent pain, swelling, wound discharge, or fever after joint replacement surgery. Seeking prompt evaluation from an experienced orthopedic surgeon can improve the chances of preserving the implant, controlling the infection, and achieving a successful recovery.
With timely medical care, proper rehabilitation, and regular follow-up, many patients go on to regain mobility and enjoy a healthy, active life after treatment.
Frequently Asked Questions (FAQs)
The earliest signs of infection after joint replacement surgery include persistent or worsening pain, increasing swelling, wound drainage, redness around the incision, fever, and difficulty moving the joint. If these symptoms develop or worsen instead of improving, consult an orthopedic surgeon immediately for evaluation and early treatment.
Yes. A prosthetic joint infection can develop months or even years after knee or hip replacement surgery. Bacteria from infections elsewhere in the body, such as dental, urinary tract, or skin infections, can enter the bloodstream and spread to the artificial joint, making prompt treatment essential.
Antibiotics alone are often insufficient because bacteria can form a protective biofilm on the surface of the artificial joint implant. This biofilm shields bacteria from both the immune system and antibiotics, which is why many patients require surgical treatment such as DAIR or revision surgery along with targeted antibiotic therapy.
DAIR (Debridement, Antibiotics, and Implant Retention) is typically used for early prosthetic joint infections when the implant can be preserved. Two-stage revision surgery is generally recommended for chronic infections and involves removing the infected implant, placing an antibiotic cement spacer, and implanting a new joint after the infection has been eliminated.
You can reduce the risk of infection by managing chronic conditions such as diabetes, treating dental or urinary tract infections promptly, following wound care instructions, attending follow-up appointments, and reporting persistent pain, swelling, wound discharge, or fever to your orthopedic surgeon without delay.
