Revision Hip Replacement Surgery

Most modern hip replacements are extremely successful and often last for decades — and the large majority will never need to be revised. But no implant lasts forever, and occasionally a patient needs a revision hip replacement: a procedure to replace some or all of an existing hip replacement. If you've been told you might need one — or your once-reliable hip has started causing trouble — the most important thing to know is this: not every painful hip replacement requires revision, and accurate diagnosis is the essential first step.

Common reasons revision may be needed

When revision is needed, it's usually for one of a handful of reasons. Each is individual, and identifying which one is at play is the whole point of a careful evaluation.

Implant loosening

Over many years, components can gradually loosen from the bone they were fixed to. As that happens, the hip can become painful and lose function. Loosening is one of the more common long-term reasons a revision is considered.

Wear of the implant components

The bearing surface — historically the polyethylene (plastic) liner — can wear over a long period of time. Modern materials wear far more slowly than older ones, but long-term wear is still part of why implants are monitored over the years.

Instability and dislocation

For the hip specifically, instability is an important consideration. Some patients experience a sense that the hip might “slip,” or have recurrent dislocations where the ball comes out of the socket. Recurrent instability that doesn't settle with other measures is one of the situations where revision may be discussed — but the right treatment is highly individualized, and not every episode means surgery.

Infection

Infection around a hip replacement is serious but uncommon. It requires careful evaluation and a treatment plan tailored to the specific situation. Because infection is managed very differently from other causes, identifying or ruling it out is a key part of evaluating a painful replacement.

Periprosthetic fracture

This is a fracture of the bone around a hip implant, most often associated with a fall or other trauma. Depending on the fracture, it may require surgery, which sometimes involves revising part of the replacement.

Other causes

There are other, less common reasons a hip replacement can cause symptoms, and — importantly — sometimes the pain isn't coming from the implant at all. Each situation calls for individualized evaluation, and not every cause requires revision.

Symptoms patients may notice

The symptoms that bring patients in vary, but a few are common:

• Increasing hip pain after years of success — a hip that was reliable starts to ache.
• Groin pain — a common location for hip-joint pain.
• Thigh pain — sometimes associated with the stem in the thigh bone.
• Instability — a feeling that the hip isn't secure.
• Recurrent dislocations.
• A new limp, difficulty walking, or loss of function.

Any of these is worth having evaluated — not because they always mean revision, but because understanding the cause early leads to better decisions.

How we evaluate a painful hip replacement

This is the heart of the matter. A thoughtful evaluation is what separates the hips that need surgery from the ones that don't, and it typically includes:

• History — when the symptoms started, what they feel like, and how the hip has done over the years.
• Physical examination — assessing motion, stability, gait, and where the pain localizes.
• X-rays — to look at the position and fixation of the components and any change over time.
• Advanced imaging — when appropriate, to look more closely at the bone and soft tissues.
• Laboratory studies — when appropriate, particularly to help evaluate for infection.

How revision differs from a first-time replacement

Revision is generally a more involved undertaking than the original (or “primary”) replacement. In plain terms:

• More complex surgery — there's an existing implant to work with, which adds steps.
• Additional planning — careful pre-operative assessment is especially important.
• Specialized implants — revision sometimes uses implants designed specifically for these situations.
• Bone-loss considerations — addressing any loss of bone around the existing components is part of the plan.
• Individualized recovery — recovery depends on what was done and your specific situation, so timelines are personalized.

None of this means it's something to fear — it's a well-established operation. It simply means revision deserves careful, individualized planning, which is exactly how it should be approached.

What patients commonly tell me

The reactions to this conversation are very human, and very consistent:

“Does this mean my first surgery failed?” is the one I most want to answer gently: not necessarily. Implants and bodies change over many years, and needing a revision after a long, successful run isn't a failure — it's the nature of a mechanical part doing its job for a long time.

From Dr. Harb

I want patients to leave this page reassured on two fronts. First, most people never need revision surgery — modern hip replacements are built to last, and the odds are strongly in your favor. Second, if your hip does start causing trouble, the path forward begins with understanding why, not with assuming the worst.

For the bigger picture, it helps to understand hip replacement overall, the muscle-sparing direct anterior approach, and just how long modern hip replacements last (more than 90% intact at 30 years). If you're earlier in the journey, the signs you may need a hip replacement, what recovery involves, and how to prepare for surgery are good places to start. If your hip has changed after years of doing well, the right next step is simply a careful evaluation.