Short answer: you lower your infection risk mostly before surgery: control blood sugar, stop nicotine, treat skin and dental problems, and follow any nasal screening or skin-washing protocol. Ask the hospital about pre-incision antibiotics and operating-room practices. Then, before you fly, set up a local doctor who can see you quickly if warning signs appear at home.
Prosthetic joint infection (PJI) is one of the more serious complications of hip and knee replacement. It is not common, but when it happens it often needs more surgery and long treatment. For people who travel for surgery, the hardest part is often not prevention but speed: getting the right evaluation fast once you are back home, far from the surgeon who operated.
Key takeaways
- Infection after primary hip or knee replacement is uncommon, but it is serious and usually needs prompt specialist care.
- Your biggest levers are before surgery: blood sugar, nicotine, skin, teeth, and any nasal or skin decolonization your team uses.
- Ask the hospital about antibiotic timing, skin preparation and operating-room practices, and get answers in writing.
- Learn the warning signs: fever, drainage, spreading redness, rising pain or swelling after it had been improving.
- Arrange a local orthopedic contact before you leave, and carry your operative report and implant details.
How common is it, and why it matters
Studies of primary (first-time) hip and knee replacements commonly report infection in roughly 1 to 2 percent of cases, with rates varying by patient health, joint, hospital and how infection is defined. Most people never have a problem.
It still deserves attention because an infected joint replacement is hard to treat. Bacteria can form a film on the implant surface that antibiotics alone often cannot clear, so treatment frequently involves further surgery, sometimes in stages, along with weeks of antibiotics. Early infections caught quickly may have more treatment options than ones found late, which is why a clear plan for fast evaluation matters so much.
Infections can appear early (in the first weeks), or months to years later, sometimes after bacteria spread through the blood from another infection. The planning in this guide covers the early period, and the habits help for life.
What you can do before surgery
Several health factors are linked to higher infection risk. Surgeons in many countries ask patients to optimize these before an elective joint replacement, and some will postpone surgery until they are addressed.
| Factor | Why it matters | What to ask or do |
|---|---|---|
| Diabetes / blood sugar | Poorly controlled blood sugar is linked to infection and wound problems | Ask what HbA1c or glucose target your surgeon requires; bring recent results |
| Nicotine | Smoking and nicotine are linked to wound healing problems | Ask how long before and after surgery to stop; get help quitting |
| Skin | Cuts, rashes or infections near the incision site raise risk | Treat skin problems first; report any sore or rash before surgery |
| Teeth and gums | Active dental infection is a possible source of bacteria | Ask whether your surgeon wants a dental check; finish urgent dental work in advance |
| Nasal bacteria | Staphylococcus aureus carried in the nose is a known risk factor | Ask whether the team screens or decolonizes (for example with nasal ointment or antiseptic washes) |
| Weight, nutrition, other infections | Obesity, poor nutrition and active infections (like a urinary infection) are linked to risk | Ask what your surgeon wants checked or treated before you travel |
General overview. Your surgeon and home doctor decide which steps apply to you.
Blood sugar control, quitting nicotine and dental work all take time. Ask about them at your first consultation, before you book flights, so you are not forced to choose between a nonrefundable ticket and a safer operation.
Don’t shave the area yourself
Shaving with a razor in the days before surgery can create tiny cuts. Many hospitals prefer that any hair removal be done by the team with clippers, if needed at all. Follow your hospital’s instructions on pre-op showering and any antiseptic soap.
Hospital protocols to ask about
You cannot inspect an operating room, but you can ask clear questions. A well-run program should answer them without difficulty.
- Antibiotics before incision“Do I receive preventive antibiotics, and are they given within the recommended window before the incision? What if I have a penicillin or cephalosporin allergy?”
- Skin preparation“What antiseptic do you use on the skin, and do you want me to wash with anything before admission?”
- Nasal screening“Do you screen for Staph aureus or use nasal decolonization?”
- Operating room practices“How do you manage operating-room traffic and sterile technique? How do you track infections in your joint replacement patients?”
- Blood sugar during the stay“If I have diabetes, how will my glucose be monitored around surgery?”
- Wound dressing“What dressing will I have, how long does it stay on, and who changes it?”
Ask for the antibiotic plan, dressing plan and wound-check schedule by email, and keep them in your case file. In Colombia, you can also confirm the hospital is a registered provider in the national health provider registry (REPS) and the surgeon in the professional registry (ReTHUS).
Incision care while you travel
The days between discharge and your flight home are when you are most on your own with the wound. Plan them carefully.
- Know exactly how to care for your dressing, and when it should be changed or removed
- Ask when you can shower, and how to keep the incision dry until then; avoid baths, pools and hot tubs until cleared
- Wash your hands before touching the dressing; do not apply creams or ointments unless told to
- Have a wound check with the surgical team before you fly, and photograph the incision in good light for your records
- Carry spare dressings your team recommends in your hand luggage
- Wear loose clothing that does not rub the incision during the flight
- Keep a thermometer with you and check your temperature if you feel unwell
Daily photos of the incision, taken in the same light, make it much easier to tell a doctor at home whether redness is spreading or drainage is new.
Protecting the joint for the long term
Late infections can happen when bacteria from another infection travel through the bloodstream to the implant. You cannot remove that risk, but a few lifelong habits help.
Mention your joint replacement
Dentists, urgent care and other doctors should know you have an artificial joint, so they can weigh it when treating infections or planning procedures.
Don’t ignore other infections
Skin infections, urinary infections and dental abscesses deserve prompt treatment, not a wait-and-see approach.
Keep up dental care
Regular dental care reduces the chance of dental infections. Ask your surgeon and dentist whether you need antibiotics before dental procedures.
Keep conditions controlled
Ongoing blood sugar control and staying nicotine-free continue to matter for healing and general health after the operation.
Warning signs after you are home
Fever or chills; wound drainage, especially if it continues, increases or looks cloudy or foul-smelling; redness or warmth that spreads around the incision; the incision opening; or pain and swelling that increase after they had been improving. Do not start leftover antibiotics on your own, because that can make an infection harder to diagnose. For calf swelling, chest pain or sudden shortness of breath, call 911 in the US (123 in Colombia).
Some swelling, warmth and bruising are normal after joint replacement, and it can be hard to judge on your own. That is exactly why you want someone qualified to look at it. It is better to be checked and reassured than to wait.
The critical plan: who sees you at home
The most important infection-related decision for a medical traveler is made before you leave home: who will evaluate you quickly if something looks wrong? Emergency departments can assess you, but suspected joint infection usually needs an orthopedic surgeon, ideally one who does joint replacements, who can examine the joint, order blood tests and decide whether to sample fluid from the joint.
- Before you bookFind a local orthopedic contactAsk your home doctor for a referral, or ask a local surgeon in advance whether they will see you after surgery abroad.
- Before dischargeCollect your recordsOperative report, implant details, antibiotics given, culture results if any, discharge summary and imaging.
- First weeks homeWatch and recordDaily incision photos, temperature if unwell, and a direct line to your surgeon in Colombia.
- If signs appearGet seen fastContact your local orthopedic contact and your Colombian surgeon the same day, and bring your records.
Records your home doctor will need
- Operative report and discharge summary, ideally translated into English if originally in Spanish
- Implant details: manufacturer, model and sizes (often on implant stickers or a card)
- Antibiotics given around surgery and any you were sent home with
- Any culture or lab results from the hospital stay
- Post-op X-rays and your surgeon’s contact details
The best infection plan is written before surgery, with a name and phone number for the doctor who will see you at home.
Frequently asked questions
How common is infection after hip or knee replacement?
Infection after a first-time hip or knee replacement is uncommon. Studies commonly report rates of roughly 1 to 2 percent, varying with patient health, the hospital and how infection is defined. Ask your surgeon for their own program's figures and how they track them.
Do I need antibiotics before dental work after a joint replacement?
Recommendations have changed over time and vary by surgeon and patient. Ask your orthopedic surgeon and dentist what they advise for you, especially in the first months after surgery or if you have conditions that affect immunity.
Is it normal for my new knee or hip to feel warm and swollen?
Some warmth, swelling and bruising are normal for weeks after surgery. Spreading redness, drainage, fever, or pain that increases after it had been improving are not, and should be checked promptly by a doctor.
Should I take leftover antibiotics if my incision looks red?
No. Starting antibiotics on your own can hide an infection and make it harder to diagnose properly. Contact a doctor, ideally an orthopedic surgeon, so they can evaluate you first.
What should I bring home from the hospital in Colombia?
Your operative report, discharge summary, implant details, list of antibiotics given, any lab or culture results, post-op X-rays and your surgeon's contact details. Ask for English translations where needed.
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