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Hip & Knee · Revision Surgery

When a joint replacement stops working the way it should

Most hip and knee replacements last many years — but implants can loosen, wear, become unstable, get infected, or be injured in a fall. Revision surgery repairs or replaces a previous replacement, and it starts with finding out exactly why yours is failing.

Request an Evaluation → Call (808) 439-6201

A careful workup comes first — not every painful replacement needs revision. Not everyone is a candidate; individual results vary.

Get evaluated if you notice

  • New or worsening pain in a replaced hip or knee
  • A feeling of instability, looseness, or giving way
  • Swelling, warmth, or drainage around the joint
  • X-rays showing loosening, wear, or bone loss
  • A fall or injury near your implant

Why Replacements Fail

Finding the "why" comes before any surgery

The right revision plan depends entirely on the reason the joint is failing. These are the most common causes we evaluate.

Loosening

Over time an implant can lose its fixation to bone, causing pain — often with activity or when starting to walk.

Wear & bone loss

Bearing surfaces wear with use. Wear debris can cause inflammation and gradual loss of the bone that supports the implant.

Instability

If the soft tissues no longer balance the joint, a hip can dislocate or a knee can feel wobbly or give way.

Infection

A prosthetic joint infection can appear early or years later. It requires a specific, staged treatment plan — ruling it out is step one of every workup.

Fracture around the implant

A periprosthetic fracture — a break in the bone near a hip or knee implant — often requires surgery that addresses both the fracture and the implant.

Stiffness or unexplained pain

Some replacements simply never felt right. A methodical evaluation looks for a correctable cause before any surgery is considered.

The Workup

A thorough, methodical evaluation

01

Listen & examine

Your history — when the pain started, what it feels like, how the original surgery went — guides everything that follows.

02

Rule out infection

Blood tests, and joint aspiration when indicated, help rule infection in or out — because an infected joint is treated very differently from a loose one.

03

Image & plan

X-rays, and advanced imaging when needed, map implant position, fixation, and bone quality so the surgical plan is made before the operating room.

A physician reviews a knee X-ray with a patient during a consultation
Every revision starts with imaging and labs — we review the findings with you and explain what they mean before discussing surgery.

Why Expertise Matters

Revision is a different operation than the first replacement

More complex by nature

Revision surgery works around prior implants, scar tissue, and often bone loss — and may require specialized revision implants and reconstruction techniques.

Fellowship-trained care

Dr. Morton is fellowship-trained in hip & knee replacement, including revision surgery — the specific training this kind of reconstruction calls for.

Honest expectations

Results of revision surgery are generally good — but typically not equal to a well-functioning primary replacement, and recovery is often longer. We'll tell you what's realistic for your case.

On Oahu, surgery is performed at The Queen's Medical Center or Adventist Health Castle; on the Big Island, at Hilo Community Surgery Center. Educational content only — not a promise of results. Candidacy and outcomes are individualized.

Dr. Paul Norio Morton, MD, orthopedic surgeon at Pacific Bone & Joint

Written and Medically Reviewed By

Paul Norio Morton, MD

Board-certified orthopedic surgeon (American Board of Orthopaedic Surgery). Fellowship-trained; Hawai‘i's first fellowship-trained robotic hip & knee replacement surgeon.

ABOS Board-CertifiedFAAOSFAAHKS

Last reviewedJuly 2026  ·  Read Dr. Morton's full bio →

Explore Related Care

Explore related care

2-Minute Check

Am I a candidate for revision joint replacement?

Answer a few quick questions. This is educational and is not a diagnosis — only an evaluation can tell for sure.

Do you have hip or knee pain that limits walking, stairs, or sleep?

Have non-surgical treatments (therapy, injections, medication) stopped giving lasting relief?

Have X-rays shown arthritis or joint damage, or has a provider mentioned it?

Answer all 3 questions to see your result.

Patient Reviews

What patients say

“Dr. Morton has an excellent bedside manner. He really took the time to talk with me about all of my options for my hip replacement. He did my re-do hip replacement 3 months ago and I haven't felt this good for years! Thank you Dr. Morton for helping me walk again.”

— Verified patient· Healthgrades review

“I had knee replacement surgery elsewhere in 2019 and it didn’t go well — over a year and a half of excruciating pain. I was referred to Dr. Morton, he did the surgery, and a week and a half later the pain was completely gone.”

— John H.· Google review

Review excerpts reflect individual patient experiences and may be lightly condensed. Results vary.

Questions, Answered

Revision joint replacement FAQ

How do I know if my joint replacement has failed?+

Warning signs include new or worsening pain, swelling, instability, or a feeling that the joint has loosened. But only an evaluation — exam, labs, and imaging — can tell whether the implant has actually failed, and why. Some painful replacements have causes that don't require revision surgery.

Why is revision surgery more complex than the original replacement?+

Revision surgery works around scar tissue, prior implants, and often bone loss. It frequently requires specialized implants, careful reconstruction of bone and soft tissue, and longer operative time. That complexity is why fellowship-trained expertise in revision hip and knee surgery matters.

Will a revision feel as good as my first replacement did?+

We'll be honest with you: results of revision surgery are generally good, but they are typically not equal to a well-functioning primary replacement, and recovery is often longer. Setting realistic expectations together is part of the plan. Individual results vary.

What if my joint is infected?+

A prosthetic joint infection is treated very differently from mechanical failure — often with a staged approach coordinated with infectious-disease specialists. That is exactly why every revision workup starts with labs, and joint aspiration when indicated, to rule infection in or out first.

Where is revision surgery performed?+

On Oahu, surgery is performed at The Queen's Medical Center or Adventist Health Castle. On the Big Island, surgery is performed at Hilo Community Surgery Center. The right venue depends on the complexity of your case and your overall health.

Is revision joint replacement covered by insurance?+

Revision surgery for a failed joint replacement is generally covered by most plans, including Medicare, though prior authorization may be required. Our team helps verify benefits and handle authorization before your visit.

Worried about your joint replacement?

Start with an evaluation. We'll find out exactly what's going on with your implant and review every option — including the ones that don't involve surgery.

Request an Evaluation → Call (808) 439-6201

For medical emergencies, call 911. This page is educational and is not a substitute for medical advice. Not everyone is a candidate; individual results and recovery vary.

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