Complex & revision joints

Where Hawai‘i's difficult joint replacements get answers

A joint replacement that still hurts is a diagnostic puzzle before it's a surgical one. This clinic exists for exactly those puzzles — the painful, loose, unstable, or infected joints other offices refer out.

  • Referral clinic
  • MAR-MRI workups
  • Infection testing
  • Annual surveillance
3D illustration of a total knee replacement implant with red inflammation highlighted around the joint, depicting a painful knee replacement.

Revision Joint Replacement Clinic Evaluation at a glance

Who comes here
Painful or failed hip/knee replacements
Workup
Labs, aspiration, X-ray, MAR-MRI
Imaging
On-site X-ray; metal-artifact MRI access
Also offered
Annual implant surveillance

Bring prior operative reports and implant records if you have them — knowing exactly what's in your joint shortens the road to answers.

Why failed joints need a different kind of clinic

Up to 20% of knee replacement patients report some dissatisfaction — and behind persistent pain there's always a reason: loosening, low-grade infection, instability, metal reaction, referred spine or SI joint pain, tendon irritation, or component malposition. Finding it requires a systematic process most general clinics aren't built for. Re-operating without a diagnosis is how one failed surgery becomes two; this clinic's first rule is no revision without a reason.

The systematic workup

Every painful replacement moves through the same disciplined sequence:

  • History and exam focused on failure patterns — start-up pain, instability episodes, night pain
  • Blood work screening for inflammation and infection
  • Joint aspiration with culture when infection is in question (PJI risk runs ~0.5% but must be excluded)
  • On-site weight-bearing X-rays compared against your originals
  • Metal Artifact Reduction MRI — sees soft tissue around implants that standard MRI can't
  • Implant identification — model, size, and recall status (why that matters)

Revision surgery, when it's truly needed

When the workup finds a surgical problem, Dr. Morton performs revision hip and revision knee replacement — fellowship-level surgery for bone loss, component exchange, and staged infection treatment. His University of Chicago adult-reconstruction training and AO trauma fellowship cover exactly this territory: compromised bone, complex fixation, unhappy joints. And when the answer isn't surgical — a spine referral, targeted therapy, an injection proving a different pain source — that's delivered just as clearly.

Infected joint replacements: the pathway matters

Periprosthetic joint infection (PJI) is the diagnosis nobody wants and everybody needs excluded — it changes everything about treatment. When infection is confirmed, the plan depends on timing and biology, not habit:

  • Early or acute infections (within weeks of surgery, or sudden onset in a previously happy joint) can sometimes be treated with DAIR — debridement, antibiotics, and implant retention with exchange of the plastic liner — keeping your original components.
  • Chronic infections generally require exchange of the implant. The gold-standard two-stage revision removes the infected implant, places an antibiotic spacer while IV antibiotics clear the infection, then rebuilds the joint months later. In selected cases a single-stage exchange — removal and reimplantation in one operation — is appropriate.
  • Suppression — long-term antibiotics without surgery — has a legitimate role for patients whose health can't support staged surgery.

These decisions are made with infectious disease specialists, hospital-level resources at Queen's, and honest conversation about the months involved. What the clinic promises is that the diagnosis is made properly — aspiration with cell counts and cultures held long enough to catch slow-growing organisms — before anyone commits you to that road.

The reconstruction toolkit

Revision surgery is carpentry on compromised ground — the reason it's a fellowship discipline. Depending on what the workup finds, the toolkit includes: porous metal augments and cones that rebuild deficient bone, longer revision stems that bypass damaged bone to reach solid fixation, increased-constraint bearings when ligaments can no longer stabilize a knee, dual-mobility constructs for hips that dislocate, and staged plans when infection or bone loss demands it. Every revision is also planned against your bearing history — metal reactions, worn poly, or corroded tapers each dictate different component choices. The technical detail lives on the revision hip and revision knee pages.

Standing pelvis X-ray showing a cup-cage reconstruction after complex revision hip replacement, with a standard hip implant on the other side.
A cup-cage construct rebuilding a hip socket with severe bone loss.

Surveillance: catching problems while they're small

The clinic also runs annual implant surveillance for anyone with a joint replacement — brief visits with X-rays that catch silent loosening or wear years before symptoms. Small problems mean simpler surgery; silent ones found late mean reconstruction. If you have an implant and no surgeon watching it (yours retired, you moved, you never went back), that's reason enough to establish care. Second opinions on revision recommendations are welcome too.

Medically reviewed by Paul N. Morton, MD, FAAOS, FAAHKS — board-certified orthopedic surgeon, fellowship-trained in adult hip & knee reconstruction and orthopedic trauma.

This page is for education only and isn’t a substitute for an exam and personalized advice — schedule a consultation to discuss your situation.

The difference

Why patients choose Dr. Morton

  • The clinic other Hawai‘i orthopedists refer complex cases to
  • No-revision-without-a-diagnosis philosophy
  • Metal Artifact Reduction MRI and on-site imaging
  • Fellowship training in exactly this surgery — UChicago + AO Berlin
  • Infection workups done properly, not presumptively
  • Annual surveillance program for every implant owner

Frequently asked questions

My joint replacement still hurts a year later. Is that normal?
Mild warmth and occasional aches can linger into the second year, but pain that limits you at twelve months deserves a workup, not reassurance. There is always a reason — the job is finding it before anyone proposes surgery.
What is Metal Artifact Reduction MRI and why does it matter?
Standard MRI turns to static around metal implants. MAR-MRI sequences suppress that artifact, revealing the soft tissues around your implant — fluid collections, tendon damage, metal reactions — that X-rays and regular MRI miss. It's often the study that finally explains a mystery joint.
Do I need a referral to be seen at the revision clinic?
Referral requirements follow your insurance plan, not the clinic — many patients self-refer. Call (808) 439-6201 and we'll check your plan and get your records gathered.
How do I find out if my implant was recalled?
Bring your operative report or implant card if you have them; if not, we can usually identify components from records and X-rays. Recall status is checked as a standard part of the workup — and most recalls call for monitoring, not emergency surgery.
What are the odds I actually need revision surgery?
Many painful replacements turn out to have non-surgical explanations — referred pain, tendinitis, therapy gaps — or need only a targeted fix. That's the value of diagnosing first: revision when it's the answer, and only then.
What should I bring to a revision clinic visit?
Ideally: your operative report, implant card or stickers, any prior X-rays or imaging discs, and a list of what's been tried. Don't have them? Come anyway — our team routinely tracks down records, and components can usually be identified from X-rays.

Get answers for a joint that never felt right

Consultations in Honolulu, West Oahu, Hilo and Kona — most new patients are seen within one to two weeks — with telehealth when an in-person visit isn’t practical.

Paul Norio Morton, MD, FAAOS, FAAHKS · Hawai‘i’s first robotic hip & smart knee · Read patient reviews →

Most major plans accepted — we verify benefits before your visit. Traveling from off-island? See the fly-in patient program →

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