Serving Pearl City, O‘ahu

Hip & Knee Replacement for Patients in Pearl City, Hawai‘i

Pearl City sits where H-1 meets H-2, a short freeway hop from Dr. Paul Morton’s Kunia clinic, where consultations, X-rays, follow-up visits and physical therapy all happen in one place.

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Paul N. Morton, MD, FAAOS

Fellowship-trained hip & knee replacement surgeon in Hawai‘i ·About Dr. Morton

  • Board CertifiedAmerican Board of Orthopaedic Surgery
  • Adult Reconstruction FellowshipHip & knee replacement · University of Chicago
  • AO Trauma FellowshipCharité – Universitätsmedizin Berlin
  • FAAOSFellow, American Academy of Orthopaedic Surgeons
  • FAAHKSFellow, American Association of Hip and Knee Surgeons
  • MD, University of Hawai‘iJohn A. Burns School of Medicine (JABSOM)

Pearl City sits above Pearl Harbor around the interchange where H-1 and H-2 join. This page also covers Waimalu, Pearl Highlands and Pacific Palisades, the neighborhood up on the ridge. Down at the water, the Pearl Harbor Historic Trail runs along the shoreline as a flat, paved path. Ridge streets above, level ground below: both come up again once you start planning recovery.

For most people here, the closest of Dr. Paul Morton’s offices is the West O‘ahu clinic in Kunia, minutes away by freeway. Consultations, imaging and follow-up visits happen there, therapists work in-house, and Wiki Wiki Orthopedics, a walk-in orthopedic urgent care, operates in the same shopping center. The practical questions come first. Can I sleep in my own bed the night of surgery? Do I need an MRI before I come in? Can therapy happen close by? Will Medicare cover it? When can I play golf? And what can be done for a knee replacement that never stopped hurting?

This page also covers Waimalu, Pacific Palisades, Pearl Highlands.

Why patients from Pearl City seek a joint replacement second opinion

Second opinions for Pearl City patients cover two situations. In the first, someone has recommended a hip or knee replacement and you want it confirmed before you commit. In the second, a knee or hip was already replaced, here or somewhere else, and it still hurts. Either way, Dr. Morton starts with what usually answers the question: a hands-on exam and weight-bearing X-rays, both of which the Kunia clinic can do in one visit. An MRI comes later, and only if a specific question is still open.

He reviews every image himself, reads the operative notes and implant records, and sends a written impression with plan options, typically within one to two weeks. Imaging done in Hawai‘i can usually be requested electronically. If you have discs or digital copies, you can upload your images (opens in a new tab) before the appointment; that is not a review and does not reserve a time. There is no pressure to switch surgeons. See the second opinion page.

Knee replacement options for Pearl City patients

Climbing the streets of Pacific Palisades, or simply the stairs at home, is work for the quadriceps. Dr. Morton spares that muscle’s tendon by using the subvastus approach for nearly every total knee, entering beneath the muscle instead of through it. A different route may be needed for a very muscular or tight knee, a marked deformity, scar tissue from a past operation, and in most revisions. Primary knees are done without a tourniquet.

Alignment is set to your own leg and ligament balance, kept within published safe-zone limits, and long-term durability data for that personalized method is still being gathered. If X-rays point to strong bone and the operating room confirms it, the parts are fixed without cement; where bone is weaker, cement is used, and it carries the longer track record. You sign consent for both options. The knee replacement hub and the alignment section of Dr. Morton’s philosophy page go into detail.

Hip replacement options

Dr. Morton replaces hips through the direct anterior approach as his standard. He reaches the joint from the front, opens the capsule, and leaves every muscle attached, which is why most of his hip patients do not get a list of positions to avoid. Whether home is up on the Palisades ridge or down near the shoreline, that means fewer rules about bending and sitting in the first weeks. He will recommend a different approach when it is safer: a hip that has had surgery before, hardware still in the bone, a significant deformity, a large skin fold over the front of the hip, or a past problem with wound healing.

A bikini-line incision may be offered when your anatomy allows; if he needs more room, he lengthens it into a standard anterior incision rather than accept a less exact implant position. Implants are chosen for your bone and your risk of dislocation, never by brand. Read the hip replacement overview.

Partial vs total knee replacement

If the cartilage loss sits in just one compartment, a partial knee replaces that section alone and leaves the ACL in place. Good candidates usually share a few features: arthritis limited to that one area, a working ACL, a knee that still gets straight, only mild deformity that can be corrected, and pain that persists through therapy, medication and injections. Wear across two or three compartments, an ACL that is torn or gone, inflammatory arthritis such as rheumatoid arthritis, or severe deformity favors a total.

Dr. Morton performs all four types (medial, lateral, patellofemoral and bicompartmental), planning each in 3D and using robotic assistance, a smaller incision and no tourniquet. Partials do come back for revision somewhat more often over the years; a later conversion to a total is generally less involved than revising a failed total, but it is a revision all the same. Age by itself does not decide; an exam and same-day standing X-rays at Kunia do. Compare the two on the partial vs total page.

Robotic-assisted joint replacement

Robotic assistance is the way Dr. Morton carries out a plan, not a separate service. He maps your joint in 3D before surgery; in the operating room, the robot keeps the work matched to that map and feeds back alignment and balance measurements, while he makes every cut and every decision. On O‘ahu the platform is selected to fit your case and the venue. At Queen’s that means ROSA®, which works from standard X-rays rather than a CT scan.

For Pearl City patients on Medicare, the useful detail is billing. Robotic assistance is billed as standard joint replacement, so there is no technology fee and no separate patient charge, and Medicare coverage is unchanged. Dr. Morton is certified on ROSA, Mako, CORI and VELYS, and in 2022 he performed the first robotic-assisted total hip replacement in Hawai‘i. Read more about his background and about ROSA.

Revision hip and knee replacement

A knee replacement that still hurts months or years later has a cause, and Dr. Morton’s Revision Hip & Knee Clinic looks for it before anyone talks about surgery. Possible culprits include loosening, infection, instability, scar-tissue stiffness, wear with bone loss, a component sitting in the wrong position, a fracture around the implant and a reaction to metal debris. The workup sets current X-rays against older ones, measures ESR and CRP, cultures joint fluid when infection is a concern, adds metal-artifact-reduction MRI or CT if needed, and confirms which implant you have and whether it was recalled.

When bone has been lost, rebuilding it is a planned part of the reconstruction: porous metal augments, cones or sleeves fill defects, and revision stems reach solid bone for fixation. Revisions are scheduled at a hospital, mainly Queen’s, usually with a short inpatient stay. See revision knee replacement.

Getting to your consultation and surgery from Pearl City

The Kunia clinic is in the Kunia Shopping Center, with free parking steps from the door. It handles consultations, injections, imaging and follow-ups, and therapists work in the same building. If you twist a knee or suspect a fracture before your appointment comes up, Wiki Wiki Orthopedics in the same center takes walk-ins and has X-ray on site; call first to confirm that day’s hours. If a town visit suits you better, the Ala Moana clinic is available too.

Dr. Morton leads every surgical decision and performs the operation himself, and along the way you will also work with his physician assistant, nurses, physical therapists and the anesthesia team. The venue is chosen with you based on procedure, health and insurance, and complex or higher-risk cases are usually scheduled at The Queen’s Medical Center. Most new patients are seen within one to two weeks of calling (808) 439-6201. Neighbors in ‘Aiea and ‘Ewa Beach use the same clinic.

Recovery close to home in Pearl City

The Pearl Harbor Historic Trail is one of the better reasons to recover at home. Its flat, paved surface along the shoreline suits the short, frequent walks of the early weeks, first with a walker, which most people use for about the first couple of weeks, then with a cane once balance improves. Leave the hills of Pacific Palisades for later in your recovery.

Physical therapy begins on the first or second day home. You can do it at the Kunia clinic, where the therapists follow Dr. Morton’s protocols, or with any licensed therapist you prefer; the office can suggest some and sends the written protocols to them. Plan on a follow-up visit around one week after surgery, and expect some later checks by Doximity video on your phone. Most patients take aspirin for several weeks to guard against clots, about a month after a knee. For what to expect with walkers and canes, see the travel guide’s mobility aids section.

Patients from across Hawai‘i on their care

  • “I see the joy & pride he has in his profession. I am currently seeing him for my knee injury, & he recommended an alternative to surgery.”

    — Johan C. · Google review · 2023
  • “So glad I did my knee replacement with Dr Morton, there is no more arthritis pain and scar is very small which I was hoping for. Most of all the physical therapy is so important and I can’t stress that enough.”

    — Mary P. · Google review · 2025

Read more patient reviews →

Common questions from Pearl City patients

Do you perform same-day joint replacement for Pearl City patients?
Yes, for patients who qualify, at Queen’s or Castle. Good candidates are generally healthy with conditions under control, have someone at home for at least the first night, have a plan for any steps into the house, and are ready to walk early. Unstable heart disease or severe sleep apnea can make an overnight stay safer. Age alone does not decide it. You go home after you walk safely, eat and drink, and control pain with pills, never on a timer. See outpatient joint replacement.
Do I need an MRI before my first visit at the Kunia clinic?
Usually not. For hip and knee arthritis, the exam and weight-bearing X-rays come first, and the Kunia clinic takes those X-rays during your visit. An MRI is ordered only when a specific question remains after that. If you already had imaging in Hawai‘i, the office can usually retrieve it electronically, so bring a photo ID, your insurance card and a medication list, and let the staff track down the rest.
Can my physical therapy be near my home in Pearl City?
Yes. You can choose any licensed physical therapist convenient to you, whether that is in Pearl City or near your work. The office can suggest therapists if you do not have one, and it shares Dr. Morton’s written rehab protocols directly with whoever you pick, so you are not left to explain the plan yourself. Therapy usually starts on the first or second day home, either at home or in a clinic. The protocols page shows what they cover.
Is there physical therapy at the Kunia clinic?
Yes. The Kunia clinic has in-house physical therapy, as the Honolulu clinic does, so your therapists and Dr. Morton’s team share one building and can keep each other updated, whether you come for prehab before surgery or rehab after it. For a Pearl City patient that can mean one parking lot for your surgeon visits and your therapy. Prehab is worth asking about; it can leave you better prepared for surgery and may help early recovery, though it guarantees no particular result. See prehab before hip or knee replacement.
Do you accept Medicare?
Yes. Traditional Medicare generally lets you book with Dr. Morton without a referral. Managed-care or HMO-style plans may need a referral from your primary care physician, and the office checks your plan before the visit. Robotic assistance does not change Medicare coverage, because it is billed as standard joint replacement. Medicaid/Quest, HMSA, AlohaCare, UHA and many others are also accepted; the insurance page has the list.
How soon can I golf after a hip or knee replacement?
In stages. Putting and chipping usually return around six weeks after surgery. Full rounds come about three months after a hip and three to six months after a knee. Ride a cart for your first rounds rather than walking the course. Dr. Morton clears each step at follow-up. The golf after knee replacement page explains the progression.
Why does my knee replacement still hurt?
There is always a reason, and the job is to find it before anyone operates again. It may be the implant: loosening, a low-grade infection, instability, stiffness from scar tissue, wear, or a component in the wrong position. It may also come from somewhere else, such as the spine, the SI joint or an irritated tendon. A structured workup, starting with X-rays compared against earlier films and blood tests, separates those possibilities. Some answers are not surgical at all.
What if I have bone loss around my implant?
Bone loss around an implant, often from wear of the plastic (osteolysis), can be silent, which is why a yearly X-ray is recommended for life. When it is found, smaller problems found early usually mean simpler surgery. In a revision, Dr. Morton rebuilds missing bone with porous metal augments, cones or sleeves, and uses longer revision stems to reach healthy bone. Those operations are planned at a hospital. See implant surveillance.

Every patient’s questions, answered in full

Schedule a consultation from Pearl City

Call (808) 439-6201 or schedule online at the Kunia clinic, where your exam, X-rays and therapy can all happen in one place.

Online scheduling opens Klara, our secure booking service; a real person confirms within one business day.

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

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