Can Both Hips Be Replaced At Same Time? | One Op Tradeoffs

Yes, both hip joints can be replaced in one operation for selected patients, though blood loss, strain, and rehab demands can rise.

If arthritis, joint damage, or long-running pain has worn down both hips, it’s normal to ask whether one operation can fix both at once. The short reply is yes. Surgeons can replace both hips during the same session. That approach is often called simultaneous bilateral hip replacement.

Still, “can” and “should” are not the same thing. A one-stage operation can cut total hospital time, one round of anesthesia, and one block of time away from work or caregiving. But it also puts more stress on the body in a single day. That tradeoff is the whole story.

For many people, the right choice comes down to health status, age, heart and lung fitness, blood count, body weight, how badly both hips are damaged, and how ready they are for a hard early rehab stretch. If one hip is far worse than the other, staged surgery may make more sense. If both hips are badly worn and the patient is otherwise fit, one operation may be a clean, practical option.

Can Both Hips Be Replaced At Same Time? When Surgeons Say Yes

Surgeons tend to say yes when both hips are painful, both limit walking or sleep, and the patient is in good shape for a longer operation. Many hip surgeons also lean toward one-stage surgery when the person has strong heart and lung function, good kidney function, no major clotting issue, and enough help at home during the first few weeks.

A respected orthopedic center, Hospital for Special Surgery, notes that healthy patients under 75 with no cardiopulmonary disease may be candidates for both hips at once. That does not mean age alone decides it. A fit 76-year-old may still do well, while a younger patient with heart or lung disease may be a poor fit.

The other big point is symptom pattern. Some people have X-rays showing arthritis in both hips, yet one side still works well enough. In that setup, replacing only the bad side first can be the cleaner call. The second side can wait until pain, stiffness, or limp truly starts to take over.

Common reasons a surgeon may lean toward one-stage surgery

• Severe arthritis in both hips with daily pain on both sides
• Strong overall fitness and good heart-lung reserve
• No major blood clot history
• No active infection
• Motivation for one rehab block instead of two
• Reliable help at home after discharge

Common reasons a surgeon may stage the two hips

• Older age with lower exercise tolerance
• Heart, lung, kidney, or vascular disease
• Anemia or a history of heavy bleeding after surgery
• Higher body weight that makes surgery longer
• One hip that is painful and one that is still manageable
• Need to see how the first new hip settles before doing the second

Having Both Hips Replaced In One Operation: The Real Upside

One-stage bilateral hip replacement has a simple appeal. You go through pre-op testing once, anesthesia once, one hospital stay, and one big rehab arc. For people juggling work, family duties, or long travel to a joint center, that can matter a lot.

There can also be a movement benefit. When both painful joints are replaced together, there is no “good side” left carrying an arthritic partner. Walking pattern, posture, and leg balance may settle more evenly once early soreness fades.

Research on simultaneous versus staged bilateral hip replacement has shown mixed results across different patient groups and study designs. A systematic review and meta-analysis found lower total blood loss, shorter hospital stay, and lower total cost with simultaneous surgery, while also finding a rise in pulmonary embolism and periprosthetic fracture. That’s why the best answer is never one-size-fits-all.

Issue	One-stage Both Hips	Staged Hip Replacements
Anesthesia	One exposure	Two separate exposures
Hospital stays	Usually one stay	Usually two stays
Early physical strain	Higher in the first days	Spread across two recoveries
Blood loss	Can be heavier in one session	Split into two surgeries
Time away from work	One longer block	Two shorter blocks or one long year
Need for rehab planning	More intense early planning	Less strain at one time
Total cost and logistics	Often lower overall	Often higher overall
Chance to reassess after first hip	No pause between sides	Yes, surgeon can adjust the next plan

What Makes Same-Time Hip Replacement Harder

The main drawback is simple: your body must absorb a lot at once. Hip replacement is a big operation even on one side. Two hips in one sitting means longer operating time, more fluid shifts, more soreness, more fatigue, and a tougher first week.

The American Academy of Orthopaedic Surgeons explains that hip replacement complications can include infection, blood clots, dislocation, bleeding, fracture, nerve or blood vessel injury, and stiffness. Their AAOS hip replacement guidance also notes that blood clots are among the most common complications after hip replacement.

That matters more in bilateral surgery because there is no untouched hip to lean on. Standing, sitting, toilet transfers, getting into bed, and climbing stairs can feel harder at first. Many patients still do well. They just need a sharper home setup and more hands-on help during the early stretch.

Questions worth asking before saying yes

• How many same-time bilateral hip replacements does this surgeon do each year?
• What is the plan to limit blood loss?
• What clot-prevention plan will be used after surgery?
• How long is the expected hospital stay?
• Will inpatient rehab be needed, or can I go straight home?
• When can I walk, shower, drive, and sleep on my side?

Recovery After Replacing Both Hips At Once

Recovery after bilateral surgery starts fast. Most patients stand and take a few steps within a day. That first walk may feel clumsy and shaky, which is expected. You are teaching two fresh joints to move at the same time.

The first month is usually the steepest part. Pain control, swelling, bathroom safety, chair height, walker use, sleep position, and daily exercises all take planning. The NHS hip replacement recovery advice says recovery may take several months, with many people going home in about one to three days if they are healing well and moving safely.

For same-time surgery, home prep matters even more than grit. Raised seating, a clear path to the bathroom, easy meals, a stable handrail, and someone who can help during the first week can turn a rough start into a manageable one.

Recovery point	What many patients notice	What helps
Days 1-3	Soreness, swelling, walker use, short walks	Pain plan, ankle pumps, short walks, staff-guided transfers
Weeks 1-2	Fatigue, sleep trouble, slow dressing and bathing	Raised chair, grabber tool, home help, daily exercises
Weeks 3-6	Better walking, less swelling, more confidence	Steady walking schedule, physical therapy, safe rest breaks
After 6 weeks	More normal daily movement for many patients	Surgeon follow-up, gradual return to work and driving

Who Usually Does Best With Bilateral Hip Surgery

People who tend to do best are those with strong pre-op mobility, good muscle strength, no major heart or lung disease, and a clear rehab plan. They also tend to have realistic expectations. Same-time surgery is not a shortcut. It is one bigger effort instead of two smaller ones.

People who struggle more often include those who already get winded with light activity, have untreated anemia, use tobacco, carry uncontrolled diabetes, or have little help at home. In those cases, spacing the surgeries can lower strain and make rehab less chaotic.

Signs the staged route may be the better fit

• You need frequent breaks after short walks
• Your blood count runs low
• You have heart rhythm, lung, or clotting issues
• You live alone with little help during the first two weeks
• You want to test one new hip before doing the second

How To Make The Decision Without Guesswork

Start with one blunt question: “Am I a good medical candidate for both hips in one session?” Then ask your surgeon to compare your personal upside and downside, not the average patient’s. You want a direct answer based on your heart and lung status, blood count, weight, medications, clot risk, and home setup.

It also helps to pin down your main goal. Some people want one recovery block and less time away from work. Others care more about making the first few weeks easier. Neither goal is wrong. The better plan is the one that fits your body and your life on the same page.

If both hips are badly damaged and your surgeon says your health profile is a clean fit, same-time replacement can be a smart option. If your medical history is more complicated, staged surgery may give you a smoother ride with less strain.