Serving Kailua, O‘ahu

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

Adventist Health Castle, one of the hospitals where Dr. Paul Morton operates, is in Kailua, so your hip or knee replacement can happen without crossing the Ko‘olau.

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

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)

Kailua sits on the Windward shore of O‘ahu. Kailua Beach, Lanikai and Kawainui Marsh are all part of it, as are the neighborhoods of Enchanted Lake and Maunawili. Its main routes to Honolulu are the Pali Highway (Route 61), which climbs over the Ko‘olau, and H-3, which tunnels through the range. For a new hip or knee, the first question here is whether that crossing is needed at all.

For the operation itself, it may not. Dr. Paul Morton performs hip and knee replacement at Adventist Health Castle in Kailua. Consultations, though, happen across the Ko‘olau, since there is no clinic on this side of the island. What Kailua patients want to know often starts at the water’s edge: when a new hip can sit in an outrigger canoe, when a knee can go back in the ocean, whether an anterior hip can mean going home the same day, and what to do about a replacement that dislocates or may be infected.

This page also covers Lanikai, Enchanted Lake, Maunawili.

Why patients from Kailua seek a joint replacement second opinion

Advice that leaves a nagging question is worth testing. For a Kailua hip, the question might be whether a front approach was considered, and whether the operation could be done at Castle and finished the same day. For others, a replaced hip has slipped out of its socket more than once, or a knee has stayed hot and swollen long after surgery, and they want the cause found first.

Expect Dr. Morton to pull up the X-rays, MRI or CT and read them himself, go over the notes from earlier visits and surgery, and examine the joint. Typically within one to two weeks, his impression and the options he sees are on paper, and you may carry that back to your own surgeon. The portal lets you upload your images (opens in a new tab) before the visit, which simply keeps them on hand; it neither counts as a review nor books an appointment. What to gather is on the second opinion page.

Knee replacement options

Dr. Morton reaches nearly every total knee through the subvastus approach, passing beneath the quadriceps instead of dividing its tendon. That muscle does the work of carrying you across the sand at Kailua Beach, so leaving it intact is the point. He may choose another route for a heavily muscled or tight knee, a marked deformity, or a knee scarred by past surgery. Tourniquets are never used on a first-time knee.

Through a 4–6 inch incision, the implant is positioned to match how your leg is naturally aligned and how your ligaments balance, without straying outside published safe-zone limits. Whether it is cemented comes down to bone quality, judged on X-ray and confirmed in surgery: good bone takes a cementless implant, softer bone a cemented one, and you agree to either beforehand. Today’s knee implants commonly last 20 years or more. The knee replacement overview and the subvastus page explain each choice.

Hip replacement options for Kailua patients

Dr. Morton replaces hips from the front as a rule. Through the direct anterior approach he opens the joint capsule and nothing else, leaving muscle on bone, and most patients leave without a list of hip precautions. Earlier operations on the same hip, leftover hardware, a badly deformed joint, a heavy fold of skin hanging over the front, or a history of slow wound healing can make another approach safer, and he will tell you if yours is that case.

This close to Kailua Beach and Lanikai, the bikini-line incision, hidden where swimwear covers it, is a natural question. It is offered when your anatomy allows; if more room is needed, he extends to a standard anterior incision rather than compromise the implant’s position. The typical hip pairs a titanium shell and a cross-linked polyethylene liner with a ceramic ball, set without cement where bone allows, and dual mobility is held back for hips more likely to dislocate. More on direct anterior hip replacement.

Partial vs total knee replacement

A partial knee swaps out just the worn compartment and leaves the ACL in place. The knee that suits one has its wear limited to a single compartment, a working ACL, the ability to straighten well and no more than a mild, correctable deformity, and still hurts despite therapy, medicines and injections. Wear that has spread, a torn or missing ACL, an inflammatory arthritis such as rheumatoid, or a large deformity favors a total instead.

Medial, lateral, patellofemoral and bicompartmental versions are all in Dr. Morton’s practice; each is planned in 3D and placed robotically through a shorter incision, without a tourniquet. The trade-off: a somewhat higher lifetime chance of another operation, and switching a partial to a total, though usually simpler than redoing a failed total, is still a revision. Age alone is not the test; an exam and X-rays taken standing are, and both can happen at the Ala Moana consultation, so one drive over the Pali can answer the question. His reasoning is on the philosophy page.

Robotic-assisted joint replacement

When a robot is part of your operation, its role is narrow. It follows the 3D plan Dr. Morton prepares ahead of time and reports alignment and balance to him live. The robot does not cut by itself or choose anything; he does every step. Which system you get on O‘ahu depends on the operation and the hospital. At Queen’s it is ROSA®, planned from regular X-rays with no CT required.

His certifications span ROSA, Mako, CORI and VELYS, and the first robotic-assisted total hip replacement in Hawai‘i, in 2022, was his (more about him). For hips, the plan covers where the cup sits, the size of the stem, and leg length and offset, though X-rays in the operating room still double-check length, because no robot guarantees equal legs. You pay no separate fee for the robot. Read about robotic hip replacement.

Revision hip and knee replacement

If you live in Kailua with a replaced hip that has dislocated, a knee that gives way, or a joint you suspect is infected, nobody should operate until the cause is proven. At Dr. Morton’s Revision Hip & Knee Clinic, that proof is built step by step: today’s X-rays read against older ones, ESR and CRP blood tests, a joint aspiration sent for culture if infection is on the table, MRI or CT with metal-artifact reduction if doubt remains, and a check of exactly which implant you carry, its size and any recall.

Other findings include loosening, plastic wear that has eaten into bone, a break next to the implant, a metal-debris reaction, stiffness or a malpositioned component. Where bone is missing, porous augments, cones or sleeves and longer revision stems rebuild it. A revision is a hospital operation, at Queen’s in most cases and at Castle in some, and usually means a short admission. The revision hip page covers the surgery itself.

Getting to your consultation and surgery from Kailua

Consultations are on the far side of the mountains. Head over the Pali Highway or through H-3 to the Ala Moana clinic, where you can park in the building, or to Kunia if that suits your day. Pack photo ID and your insurance card, plus a medication list and whatever imaging you already have. Plenty of later check-ins skip the drive: the office texts a Doximity link, and you tap it on your iPhone or Android phone to join.

Surgery may not require the crossing. You and Dr. Morton pick the hospital together, weighing the operation, your health and your insurance. Castle, nearest for Kailua, Kāne‘ohe and Waimānalo alike, can take a first-time hip or knee that fits your case and coverage, whereas revisions, complex reconstructions and patients with higher medical risk are usually booked at The Queen’s Medical Center. The office line, (808) 439-6201, is answered weekdays from 8:00 am to 4:30 pm, and new patients are mostly seen within one to two weeks.

Recovery close to home in Kailua

With surgery at Castle, the ride home stays on the Windward side and family can visit without crossing the Pali. You will most likely be on your feet with a walker that same day, keep it for roughly the first couple of weeks, and trade it for a cane once your balance is steady. Driving waits for Dr. Morton’s clearance, on average two to six weeks, and only after you are done with narcotic pain pills and can stamp on the brake; until then, someone else takes you to town.

Your first check comes around a week after surgery. After that, incision checks by camera and progress reviews can happen over video from your living room. For clot prevention, most people take aspirin for several weeks, exactly as prescribed. Once the first year is behind you, a yearly X-ray keeps an eye on the implant for good. Details are in the knee recovery guide and in the first year after hip replacement.

Patients from across Hawai‘i on their care

  • “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
  • “Very nice visit. My TKR was quite remarkably pain-free and he took some time explaining that to me.”

    — Dean S. · Google review · 2023

Read more patient reviews →

Common questions from Kailua patients

Is it worth driving over the Pali for a second opinion?
For a decision as big as a new joint or a redo, one trip over the Pali is usually time well spent. At Ala Moana, the exam, fresh standing X-rays and the conversation fit into the same appointment, and Dr. Morton reads the films himself. Short on time? Begin with a video visit from Kailua instead. You get a written impression, typically within one to two weeks, and you are examined in person before any surgery is scheduled.
What is direct anterior hip replacement?
The new hip goes in through an incision on the front of the hip, and the joint capsule is the only tissue opened; muscles are neither cut nor lifted from bone. For most people that removes the old rules against crossing the legs, bending deeply or sleeping on one side, so a low beach chair, and later a canoe seat, comes with no special hip rules. This is the approach Dr. Morton uses by default.
Can my surgery be at Castle in Kailua?
It can, when Castle fits your operation and your coverage. Dr. Morton performs hospital-based hip and knee replacement at Adventist Health Castle, so the operation and any overnight stay can both happen on the Windward side. The office confirms first which hospitals your plan supports.
Can I go home the same day?
Possibly. Same-day hip and knee replacement is available at Castle and at Queen’s for qualified patients. The usual candidate is in good general health with conditions under control, has a support person staying over at least the first night, has a plan for any front steps, and wants to walk early. With unstable heart disease or severe sleep apnea, a monitored night may be the safer plan. Discharge follows milestones, not the clock: walking safely, keeping food and fluids down, and pain managed with pills. Age is not a factor in itself.
Can my physical therapy be near my home in Kailua?
Yes. Any licensed physical therapist in or near Kailua will do, and sessions begin a day or two after you are home, either in your house or at their clinic. The office can suggest names; Dr. Morton’s written protocols go straight to your therapist, so the program does not change with the address. The practice’s in-house PB&J Physical Therapy team works out of the Honolulu and Kunia clinics if you would rather train there.
How soon can I swim at Kailua Beach after surgery?
The incision sets the pace. A new hip can usually go in a pool about a month out, once the wound has sealed and you have been cleared; ocean swims off Kailua Beach and snorkeling wait until around three months. A new knee stays dry, pool and ocean alike, until the incision has healed and Dr. Morton clears it, typically at six weeks. Seawater holds bacteria that a fresh wound should never meet.
When can I paddle an outrigger canoe or a kayak again?
After a hip, seated outrigger paddling suits the new joint once you can get in and out of the canoe safely, and paddling a surfboard generally comes around three months. Stand-up paddling waits until your balance on one leg is solid. After a knee, paddling is cleared individually at follow-up once the incision has healed. A kayak raises the same questions as a canoe, a sealed incision and a safe way in and out, so ask at follow-up.
What happens if my hip replacement keeps dislocating?
Repeated dislocation, like a knee replacement that gives way, is instability, and it has a cause worth finding. Dr. Morton checks the position of the components on comparison X-rays, rules out infection and loosening, and identifies exactly which implant you have. The fix is matched to the cause and may involve implant and bearing changes, such as a dual-mobility hip or a more constrained knee.
Can an infected joint replacement be revised?
Yes, and timing shapes the plan. Caught early, an infection can sometimes be cleaned out with debridement, antibiotics and a new liner while the implant itself is kept, an approach called DAIR. An infection that has been present for a long time generally calls for revision in two stages, though a one-stage exchange fits some cases. Dr. Morton decides on the approach together with infectious-disease specialists, using hospital resources at Queen’s. Call (808) 439-6201 promptly if a replaced joint turns warm, red or starts to drain.

Every patient’s questions, answered in full

Schedule a consultation from Kailua

Call (808) 439-6201 or schedule online to start with a consultation at Ala Moana, and ask whether your operation can be at Castle in Kailua.

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 →

Most major plans accepted — we verify benefits before your visit.