At a glance
Joint replacement surgery removes the damaged surfaces of a hip or knee joint and replaces them with artificial components, called a prosthesis, made of metal, ceramic, or hard plastic.
When cartilage (the smooth tissue that cushions the ends of your bones) wears away, bone grinds against bone, causing pain and stiffness. The new prosthetic joint recreates a smooth surface so the bones can move past each other without friction, restoring the function that arthritis or injury took away.
Medical Condition
Surgeons recommend joint replacement when pain and loss of movement cannot be controlled by other means and are severe enough to affect daily life.
- Osteoarthritis (the most common reason): gradual breakdown of joint cartilage that worsens with age.
- Rheumatoid arthritis: an autoimmune disease where the body's own immune system attacks the joint lining.
- Post-traumatic arthritis: joint damage that follows a fracture or serious ligament injury.
- Avascular necrosis (bone death caused by interrupted blood supply), particularly in the hip.
- Severe joint deformity that limits walking, climbing stairs, or getting in and out of a chair.
- Bone tumours around the joint, in selected cases where partial or total replacement is the best option.
Not every patient with joint pain is a candidate. Surgeons usually advise against replacement in the following situations.
- Active infection anywhere in the body, because bacteria can travel to the new joint.
- Severely weakened bones that cannot anchor the prosthesis securely.
- Very young, highly active patients where the prosthesis is likely to wear out before natural lifespan allows.
- Serious heart, lung, or kidney conditions that make general or spinal anaesthesia too risky.
- Obesity at a level that substantially raises surgical and healing risk, until weight is reduced.
Risks & Complications
Joint replacement is a major operation, and while most patients recover well, recognised risks include the following, listed roughly from most to least common.
- Pain and swelling around the joint in the weeks after surgery, which usually settles with time.
- Deep vein thrombosis, or DVT (a blood clot forming in a leg vein), and, less often, pulmonary embolism (a clot reaching the lungs).
- Wound infection, either at the skin surface or deeper around the prosthesis.
- Stiffness or limited range of motion if scar tissue forms around the new joint.
- Prosthesis loosening over years, which may require a second operation called a revision.
- Leg-length difference after hip replacement, sometimes needing a shoe insert to correct.
- Dislocation of the hip prosthesis if the joint is moved into certain extreme positions too soon after surgery.
- Nerve or blood vessel injury near the joint during the operation.
- Reactions to anaesthesia, including nausea, allergy, or, rarely, more serious events.
- Wear of the prosthesis over time, leading to small particles that can cause local bone loss.
Preparation & Procedure
Preparation begins weeks before the operation, not the morning of it. Your surgical team will give you a personalised checklist, but the steps below cover what most hospitals require.
On the dietary and lifestyle side, you will typically stop eating and drinking (including water) for at least six hours before going to theatre. Smoking slows bone healing and raises infection risk, so most surgeons ask patients to stop for several weeks beforehand. Alcohol thins the blood and affects anaesthesia, so it is usually avoided for at least a week before surgery.
Several medications are commonly paused or adjusted before the operation. Blood thinners (such as anticoagulants or aspirin) are usually stopped several days in advance to reduce bleeding risk. Some anti-inflammatory drugs are also paused. Diabetes medication and blood pressure drugs may be adjusted on the day. Always follow your own surgical team's instructions, since rules differ by medication and by patient.
Pre-operative tests allow the team to check that you are fit for surgery and anaesthesia. These typically include:
- Blood tests: full blood count, kidney and liver function, blood clotting time, blood type.
- EKG (electrocardiogram) to check heart rhythm, especially in patients over fifty.
- Chest X-ray to assess the lungs and heart size.
- X-rays or MRI of the affected joint to plan the exact size and position of the implant.
- Urine test to rule out an undetected infection before surgery.
- Dental check, because bacteria from untreated dental disease can infect the new joint.
On the day of surgery, the typical sequence of events unfolds as follows.
- 1. You are admitted and change into a hospital gown. Nursing staff check your vital signs and confirm your allergy history and medication list.
- 2. An intravenous (IV) line is placed in your arm to deliver fluids and medication.
- 3. The anaesthetist meets you to discuss whether you will have general anaesthesia (fully asleep) or spinal anaesthesia (awake but numb from the waist down). Most knee replacements use spinal anaesthesia; hip replacements may use either.
- 4. You are moved to the operating theatre and positioned on the table. The skin over the joint is cleaned with antiseptic solution.
- 5. The surgeon makes an incision (cut) over the joint, moves muscles aside without cutting them where possible, and removes the damaged bone ends and cartilage.
- 6. The prosthetic components are fitted: a metal stem into the thigh bone (femur) and a cup into the pelvis for hip replacement, or shaped metal caps on both sides of the knee with a plastic spacer between them for knee replacement.
- 7. The surgeon checks the fit and range of motion, then closes the layers of tissue with sutures or staples and applies a sterile dressing.
- 8. You are moved to a recovery room where nurses monitor your blood pressure, pain level, and the returning feeling in your legs.
Aftercare
Most patients stay in hospital for two to five days after a joint replacement, though the exact length depends on the joint replaced, any complications, and how quickly movement returns.
- Physiotherapy (guided movement exercises) usually starts the day after surgery to prevent stiffness and blood clots. A physiotherapist will show you how to walk with a frame or crutches before you leave hospital.
- Blood-thinner medication is given for several weeks to reduce the risk of DVT. Your team will explain how and how long to take it.
- The wound is checked regularly. Staples or sutures are usually removed around ten to fourteen days after surgery.
- Swelling and mild bruising around the joint are normal for several weeks. Elevating the limb and applying ice packs (with a cloth barrier) helps manage this.
- Driving is usually not allowed for at least six weeks after a lower-limb replacement, and only when pain, strength, and reaction time are fully back. Your surgeon decides when it is safe.
- Return to desk work may be possible after four to six weeks; physically demanding jobs take longer, often three to six months.
- High-impact activities such as running or jumping are usually discouraged long-term to protect the prosthesis from early wear.
- Follow-up X-rays are taken at regular intervals, often at six weeks, one year, and then every few years, to check the prosthesis is sitting correctly and showing no signs of loosening.
- Before any dental procedure or invasive medical test in the future, tell your doctor you have a joint prosthesis. Antibiotics are sometimes given in advance to prevent bacteria from reaching the implant.
- Lifestyle changes that protect the joint include maintaining a healthy body weight, strengthening the muscles around the joint, and avoiding falls.
Cost & What Determines It
The price of joint replacement surgery varies enormously between countries, hospitals, and individual patients, because so many factors feed into the final bill.
- Complexity of the case: a straightforward primary replacement costs less than a revision (redoing a failed prosthesis) or a case with severe deformity requiring custom-shaped implants.
- Type of prosthesis: standard implants, premium implants with longer manufacturer warranties, and custom-fitted or computer-navigated components each carry different price tags.
- Hospital class: a private specialist centre charges more than a public teaching hospital, even within the same city or country.
- Country of treatment: labour costs, hospital overheads, and import duties on implants differ widely across borders.
- Length of hospital stay: complications or slower recovery add bed days, nursing care, and physiotherapy sessions to the total.
- Anaesthesia type and duration: longer or more complex anaesthesia adds to the fee.
- Pre-operative tests and imaging: blood panels, X-rays, and MRI scans needed for planning are usually billed separately or itemised within a package.
- Post-operative medication: blood thinners, pain relief, and antibiotics prescribed after discharge add to the out-of-pocket cost.
- Rehabilitation: inpatient physiotherapy may be included in the hospital stay, but outpatient physiotherapy sessions after discharge are often an additional expense.
Hospital packages for joint replacement typically include the surgeon's fee, anaesthetist's fee, operating theatre time, the prosthesis itself, hospital accommodation, nursing care, and the first set of physiotherapy sessions. Items that are commonly billed separately include pre-admission tests run outside the hospital, any specialist consultations added during the stay, take-home medications, and outpatient rehabilitation after discharge.
For Indonesian patients, BPJS Kesehatan and most Indonesian private insurance policies do not cover treatment received abroad. Patients travelling overseas for joint replacement usually pay out of pocket or through an international private health insurance plan that explicitly includes overseas surgical cover. Before confirming travel plans, ask the hospital for a written cost estimate that itemises the prosthesis, stay, and rehabilitation separately. This makes it easier to compare options and prevents unexpected charges on arrival.
Frequently Asked Questions
How long does joint replacement surgery (hip or knee) take?
Most hip or knee replacement operations take between one and two hours in the operating room. The exact time depends on the joint being replaced, the complexity of your case, and whether any unexpected issues arise during surgery. Your surgical team will give you a more specific estimate during your pre-operative consultation.
Will I be asleep during the operation, and how bad is the pain afterwards?
Joint replacement surgery is usually performed under either general anaesthesia (where you are fully asleep) or spinal anaesthesia (where only the lower half of your body is numbed), and your anaesthesiologist will decide which is safer for you. Pain in the first few days after surgery is normal and is managed with prescribed pain relief, so most patients describe it as uncomfortable rather than unbearable. By the time you leave hospital, the pain is usually well controlled and continues to ease as your body heals.
How long is the recovery, and when can I go back to work?
Most people are up and walking with assistance within a day or two of surgery, but full recovery usually takes three to six months depending on the joint replaced and how actively you follow your physiotherapy programme. Patients with desk jobs often return to work within six to twelve weeks, while those with physically demanding work may need longer. Your orthopaedic surgeon will guide your return-to-activity timeline based on how your recovery progresses.
How much does joint replacement surgery cost?
The cost of joint replacement surgery varies based on several factors specific to this procedure, including the type and brand of implant used, the complexity of your joint damage, the length of your hospital stay, and whether physiotherapy rehabilitation is included in the package. Because implant costs alone can differ significantly between options, there is no single figure that applies to everyone. Requesting a written itemised estimate from the hospital is the most reliable way to understand your total expected cost.
This page is general information, not a substitute for medical advice. Every case is different. Your doctor decides what is right for you.







