Serving Kapolei, O‘ahu

Hip & Knee Replacement for Patients in Kapolei, Hawai‘i

From Makakilo down to Ko Olina, you can keep consultations, X-rays and follow-ups at Dr. Paul Morton’s Kunia clinic and save the drive into town on H-1 for surgery day.

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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)

Kapolei sits at the western end of H-1, and people often call it O‘ahu’s “second city.” Makakilo rises on the hillside above it, Ko Olina’s four lagoons line the coast, and the University of Hawai‘i–West O‘ahu has its campus here. This page also covers Kalaeloa. If you have made the commute into town on H-1, you already know the practical question behind a sore hip or knee out here: how many of those drives will treatment take?

Fewer than you might expect. Dr. Paul Morton’s West O‘ahu clinic in Kunia is the nearby office for Kapolei, and the consultation, standing X-rays, injections, pre-operative visit and follow-ups can all happen there. Surgery day is the main trip, either to The Queen’s Medical Center in town or across the island to Adventist Health Castle in Kailua. Kapolei patients usually arrive with practical questions: time off work, whether the surgery is robotic, therapy close by, and a replacement put in somewhere else that no longer feels right.

This page also covers Makakilo, Ko Olina, Kalaeloa.

Why patients from Kapolei seek a joint replacement second opinion

The right moment for a second look is before a date is set: when a total knee has been presented as the only choice, when a hip operation is booked but your questions are not, or when a joint replaced years ago now aches with the first steps of the morning. Living in Kapolei, you can get that look without spending a day in Honolulu. Dr. Morton holds second-opinion visits at Kunia, studies your X-ray, MRI or CT images himself rather than trusting a summary, and examines the joint. You typically have his impression and your options in writing within one to two weeks.

Send the image files, not only the reports. The practice’s portal lets you upload your images (opens in a new tab) before you come, so they are on hand at Kunia, though putting them there is neither a review nor a booking. Nobody expects you to switch surgeons. A checklist of what to collect sits on the second opinion page.

Knee replacement options for Kapolei patients

On nearly every total knee, Dr. Morton slips beneath the quadriceps instead of splitting its tendon, the subvastus or quad-sparing approach. That is the muscle that carries you up a sloping Makakilo street and out of a low chair. He sets the approach aside when a knee is unusually tight or heavily muscled, badly deformed, scarred by a previous operation, or being revised. First-time knees are done without a tourniquet, through an incision that usually measures four to six inches.

Implant position is tailored to how your own leg lines up and how your ligaments balance, kept within published safe zones; long-term data on this personalized method is still coming in. Cement depends on bone quality. Good bone, judged on X-ray and checked at surgery, takes cementless components; weaker bone is cemented, the method with the longest record behind it, and your consent covers either. See the knee replacement hub and the subvastus page.

Hip replacement options

With the direct anterior approach, his standard for hips, Dr. Morton reaches the ball and socket by opening the joint capsule alone; no muscle is cut or lifted off the bone, and hip precautions are usually unnecessary. A few situations make another route safer: a previous operation on that hip, hardware left from an old repair, a hip that is significantly deformed, a heavy skin fold hanging over the front, or wounds that have healed poorly before. He tells you if one applies.

Thinking about the Ko Olina lagoons? A bikini-line incision, placed where a swimsuit covers it, is possible when your anatomy allows. If he needs more room, he lengthens it to a standard anterior incision rather than accept a less exact implant position. Robotic guidance on essentially every hip maps the cup angle, stem size, leg length and offset. The usual construct is a titanium cup, a cross-linked polyethylene liner and usually a ceramic head, without cement when bone allows; brands play no part.

Partial vs total knee replacement

Whether a partial knee is realistic can often be answered at the first Kunia appointment, with standing X-rays taken there and an exam; an MRI is ordered only if a specific question is left over. A partial resurfaces only the damaged part and keeps the ACL. Good candidates have arthritis in a single compartment, a working ACL, a knee that can still straighten well, a modest angle that corrects, and pain that has outlasted therapy, medicines and injections. A total fits better when two or three compartments are worn, the ACL is torn or missing, the arthritis is inflammatory (rheumatoid, for example), or the knee is badly deformed.

He does medial, lateral, patellofemoral and bicompartmental partials, each mapped in 3D and performed robotically through a shorter, tourniquet-free incision. Over a lifetime a partial is somewhat more likely to need revising. Converting one to a total is usually less involved than redoing a failed total, but it still counts as revision surgery. Age alone does not settle it. See the partial vs total knee page.

Robotic-assisted joint replacement

The robot in Dr. Morton’s operating room is a guide, not a surgeon. Ahead of time he maps your joint in 3D, so the plan is drawn up before you head into town for surgery. During the operation the system holds him to that plan and feeds back alignment and soft-tissue balance in real time. It cannot cut on its own, it makes no choices, and every step is performed by him. On O‘ahu the platform depends on the case and hospital; at Queen’s it is ROSA®, which works from ordinary X-rays and needs no CT scan.

Dr. Morton holds certification on four robotic systems (ROSA, Mako, CORI and VELYS). In 2022 he did the first robotic-assisted total hip replacement in Hawai‘i, and his patients know him as “The Robot Doc.” You pay no technology fee and no separate charge for the robot; it is billed like any standard joint replacement, and Medicare coverage stays the same. Read about robotic knee replacement and robotic hip replacement.

Revision hip and knee replacement for Kapolei patients

When a replaced joint feels loose, hurts as you push up from a chair, or wakes you at night, the Revision Hip & Knee Clinic works out why before anyone talks about surgery. Roughly half of Dr. Morton’s practice is revision work sent by other surgeons, and he routinely sees implants put in elsewhere, including the mainland and overseas. The investigation runs in a set order: fresh X-rays laid beside earlier films, ESR and CRP blood work, a needle aspiration and culture if infection is on the table, metal-artifact-reduction MRI or CT for questions still open, and a check of the implant’s make, size and any recall.

Findings vary: a loose or infected component, an unstable joint, worn plastic with bone loss, a fracture beside the implant, a metal-debris reaction, a stiff knee, or malpositioned parts. Sometimes the pain is traced to the spine or a tendon, and surgery is not the answer. Needed revisions happen in a hospital, Queen’s for most and Castle for some, usually with a short inpatient stay.

Getting to your consultation and surgery from Kapolei

The Kunia clinic is your home base. It sits in the Kunia Shopping Center with free parking and easy access to H-1 and H-2, and covers consultations, imaging, injections, the pre-operative visit and follow-ups. Justin Grandalen, PA-C, sees patients alongside Dr. Morton, so some visits and in-between questions go through him; ask any time if you want Dr. Morton himself. Hurt a knee while you wait? Wiki Wiki Orthopedics, the practice’s walk-in orthopedic urgent care with X-ray on site, shares the center; phone first to check its hours that day.

The H-1 drive east is saved for surgery. You and Dr. Morton pick the hospital together, weighing the operation, your health and what your plan covers. Revisions, complex cases and higher-risk patients typically go to Queen’s; Adventist Health Castle in Kailua is the other choice. Both can send qualified patients home the same day or keep you overnight when your health calls for it. To book, phone (808) 439-6201 or tap Schedule; new patients are usually seen within one to two weeks.

Recovery close to home in Kapolei

Most people are up with a walker on surgery day and move to a cane after about the first couple of weeks. Therapy picks up a day or two after you get home, in the house or at a clinic, and the place is your choice: PB&J Physical Therapy works in-house at the Kunia clinic, or you can pick any licensed therapist easier to reach from Makakilo, Kalaeloa or Ko Olina. The office can recommend names and forwards Dr. Morton’s written rehabilitation protocols so your therapist follows his plan.

When you are steady and your team gives the go-ahead, the walking paths around the Ko Olina lagoons are an inviting place to stretch your walks. Getting into the lagoon water waits for clearance: typically about six weeks out from a knee, and nearer three months for the ocean after a hip. The first check comes around a week after surgery, some later ones happen by Doximity video on your phone, and a yearly X-ray keeps tabs on the implant for life.

Patients from across Hawai‘i on their care

  • “I was walking within a couple of weeks without the pain and am so grateful for him. It has been almost a year and I’m still doing great!”

    — Sherry B. · Google review · 2021
  • “Dr. Morton and his team are the best! I just had my second knee replacement and it all went smoothly. He is so easy to talk to and replies to any issues immediately.”

    — Jennifer I. · Google review · 2025

Read more patient reviews →

Common questions from Kapolei patients

Is it worth driving into Honolulu from Kapolei for a second opinion?
In most cases it does not take Honolulu at all. Second-opinion visits happen at the Kunia clinic, and Dr. Morton reviews the films himself before writing up his impression, typically within one to two weeks. Scans from Hawai‘i facilities can usually be pulled electronically. Town usually enters the picture only if you later choose surgery at Queen’s. When the plan on the table is a major operation, or a replacement that has gone wrong, a careful second look is well worth the drive to Kunia.
How soon can I return to work?
The joint and the work both matter. Back at a desk, hip patients often return in two to four weeks; after a knee, Dr. Morton’s usual guide for sedentary work is around six weeks. Standing, kneeling, lifting or climbing at work means a longer wait, cleared case by case. If you commute on H-1, driving is its own milestone, on average two to six weeks: you need to be off narcotic pain pills and able to stomp on the brake without hesitating. See driving after surgery.
Can I do pre-op testing closer to Kapolei?
Possibly; the office will tell you. Whether you need blood tests, an EKG or both depends on your health, and the team spells out which ones, can set them up, and can check whether they can be done near Kapolei. Clearance for surgery normally comes from your primary care provider, while Dr. Morton and the anesthesia team go over your heart, lungs, medicines and your history with anesthesia. The pre-op testing section of the travel guide covers it.
Can my physical therapy be near my home in Kapolei or Makakilo?
Yes. Sessions usually start on the first or second day after you are home. The in-house team at the Kunia clinic is one option; a licensed therapist anywhere on the west side who fits your schedule is another, and the office can offer suggestions near Kapolei or Makakilo. Whoever you choose receives Dr. Morton’s written protocols straight from the office, so everyone works from one plan.
Do you use robotic surgery?
Yes. Robotic guidance is part of essentially every hip he does, and he uses it for knees too, choosing the platform on O‘ahu to suit the case and the hospital. He plans and performs every step; the robot reports alignment and balance and never cuts by itself. Billing is the same as for any standard joint replacement, with no separate fee to you, and Medicare coverage does not change.
How do I know if my implant is loose?
Watch for pain with the first few steps after sitting, aching that wakes you at night, a joint that feels wobbly, or new pain after years of comfort. Loosening can also creep in without symptoms, which is the reason for a yearly X-ray for life: set beside older films, it can reveal a change before you feel anything. If one has started to bother you, book a Kunia visit and bring earlier X-rays and the operative report. More on implant surveillance.
Can you revise a replacement performed somewhere else?
Yes. Hips and knees replaced by other surgeons, on the mainland and overseas included, are a routine part of the Revision Hip & Knee Clinic’s work. Helpful items include the operative report, an implant card or sticker sheet, and any older X-rays. Missing paperwork should not stop you from booking: components can usually be identified from X-rays and records, recall status is checked during the workup, and the team can help request files from your previous surgeon.
How many trips into town will I actually need?
For a routine hip or knee replacement, the consultation, X-rays, pre-operative visit and follow-ups can usually all be at Kunia, leaving surgery day as the main trip, to Queen’s in Honolulu or Castle in Kailua. Pre-operative tests may add a stop, depending on where they are done, and revisions or complex cases sometimes need additional appointments. Line up someone to drive you home from the hospital and to stay with you at least the first night.

Every patient’s questions, answered in full

Schedule a consultation from Kapolei

Book a consultation at the Kunia clinic or call (808) 439-6201, and bring any X-rays or operative reports from earlier joint care.

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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