Serving Kaka‘ako, O‘ahu

Hip & Knee Replacement for Patients in Kaka‘ako, Hawai‘i

Kaka‘ako sits between downtown and Ala Moana, next door to Dr. Morton’s Honolulu clinic and home to the medical school where he earned his MD. Here is how joint replacement fits high-rise living.

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)

Kaka‘ako lies between downtown Honolulu and Ala Moana, with Kaka‘ako Waterfront Park and other parks along its shoreline; this page also covers Ward and Kewalo. The neighborhood has a personal tie for Dr. Paul Morton. The John A. Burns School of Medicine has its campus here, and he earned his MD from the University of Hawai‘i school in 2012, then trained on the mainland and abroad before coming home to practice. His Honolulu clinic is now next door at Ala Moana, with physical therapy in-house.

Much of Kaka‘ako’s housing is high-rise and mid-rise, and that changes the recovery conversation. An elevator to your floor removes the stair problem that complicates going home the same day in hillside parts of town, though the building’s elevator and entry still deserve a look. The flat paths along the waterfront parks suit early walks. Questions from here often turn to partial knee replacement and how quickly everyday routines can resume.

This page also covers Ward, Kewalo.

Why patients from Kaka‘ako seek a joint replacement second opinion

One question a second opinion can settle is whether a knee booked for a total could have been a partial, or whether a partial that was offered is really enough. Another is why a knee or hip that has already been replaced still aches. Either one deserves an answer built from the images, not from a one-line report summary. Dr. Morton looks at the X-ray, MRI or CT files himself, examines you, and sends a written impression covering the diagnosis as he sees it and the choices open to you, typically within one to two weeks.

Gather the images, the operative report if you have had surgery, and the recommendation you were given; studies done in Hawai‘i can usually be retrieved electronically. With the Ala Moana clinic next door, the in-person exam is simple to fit in. Many patients carry the impression back to their own surgeon, with no expectation that they switch. The second opinion page has a checklist.

Knee replacement options

Knee replacement is a family of operations rather than one. Depending on where the cartilage has worn, Dr. Morton may suggest a medial, lateral, patellofemoral or bicompartmental partial, or a total knee. For a total, he uses the subvastus approach on nearly every knee, lifting the quadriceps rather than cutting its tendon, and no tourniquet on any primary knee. Implant position follows your natural alignment and ligament tension, kept within the published safe zone. A total’s incision runs about 4–6 inches; a partial’s is smaller.

Bone that is strong enough takes a cementless implant, as read from the X-rays and checked again in surgery; weaker bone gets cement. Whichever knee you end up with, the rehab that follows can happen in the therapy gym at the Ala Moana clinic, close to Ward and Kewalo, with therapists working from the same plan as the surgeon. The alignment notes explain how implant position is chosen.

Hip replacement options

Dr. Morton replaces hips through the direct anterior approach as a rule, opening the joint capsule rather than cutting or detaching muscle, so most patients skip the familiar list of hip precautions. If you would like a scar that hides under swimwear, ask about a bikini-line incision; for a first anterior hip it is available when your anatomy allows. If the operation calls for more room, he lengthens the incision into a standard anterior one; the implant’s position always takes priority over the scar.

A typical hip combines a titanium socket shell, a cross-linked plastic lining and, in most cases, a ceramic ball, fixed without cement when bone quality allows; dual mobility is kept for those at higher dislocation risk. Previous surgery on that hip, hardware still in the bone, a significant deformity, a large skin fold or trouble with wound healing can make another approach the safer one, and he will say so. The implant selection notes explain the choices.

Partial vs total knee replacement

If you are weighing a partial knee, it helps to know what it keeps. Only the worn compartment is resurfaced; the ACL, the PCL and the healthy cartilage stay where they are. Dr. Morton plans each partial in 3D and performs it with robotic assistance, using a shorter incision and no tourniquet, and partial patients tend to recover faster. For someone hoping to be back on the waterfront paths soon, that is a genuine advantage when the knee qualifies.

The trade-off is durability: across a lifetime, a partial is somewhat more likely than a total to need revising. Wear in more than one compartment, an inflammatory arthritis or a damaged ACL steers the choice toward a total, and age does not decide the matter by itself. The FAQ below covers candidacy in more detail, and the partial vs total comparison sets out both operations side by side so you can bring specific questions to your visit.

Robotic-assisted joint replacement

Robotic assistance is part of how Dr. Morton plans and performs partial knees as well as total knees and hips. He builds a 3D plan before surgery, and during the operation the robot executes it while giving him live readings of alignment and balance. It never makes a cut by itself or chooses anything; every step is his. The same approach applies whether the knee is getting a partial or a total.

Four platforms carry his certification, ROSA®, Mako, CORI and VELYS, and on O‘ahu the one used is chosen to fit the case and the hospital. At Queen’s, in neighboring downtown Honolulu, he uses ROSA, which needs only ordinary X-rays for planning, not a CT scan. For hips, robotic guidance sets cup position, stem size, leg length and offset, and X-rays taken during surgery double-check leg length, since no robot can guarantee it. Read more about the robotic knee.

Revision hip and knee replacement

A partial knee can fail in ways of its own: arthritis can advance in a compartment that was healthy at the first operation, or a component can come loose. Converting a failed partial to a total tends to be less involved than reworking a failed total, though it is still a revision and gets the same planning. Partials, totals and hips can also fail from other causes: infection, a joint that slips or dislocates, wear that leads to bone loss, a fracture beside the implant, a reaction to metal debris, scarring that stiffens the joint, or parts set in the wrong position.

Other surgeons refer revision cases to Dr. Morton, including implants first placed on the mainland or overseas, and he does not revise without a diagnosis. Revision surgery takes place in a hospital, typically Queen’s, and you should expect a short inpatient stay. The revision clinic handles the workup, and the partial knee pain guide covers why partials are revised.

Getting to your consultation and surgery

From Kaka‘ako, Ward or Kewalo, the Ala Moana clinic is next door, facing Ala Moana Center, with parking inside the building for days when walking over is not practical. Your consultation, X-rays taken standing, pre-op visits, follow-ups and therapy sessions all happen there, and new patients generally get an appointment within one to two weeks. Surgery can be scheduled at The Queen’s Medical Center on Punchbowl Street in neighboring downtown Honolulu; the venue is chosen with you.

Some follow-ups can be done by video without leaving your apartment. The office texts you a Doximity link and you open it on an iPhone or Android phone; these calls are only for patients physically in Hawai‘i, and nobody goes into surgery without an in-person exam first. To book, use the Schedule button or call (808) 439-6201 Monday–Friday, 8:00 am – 4:30 pm HST.

Recovery close to home

An elevator building takes the stairs out of the equation, and stairs are one of the things a same-day discharge plan has to solve. The rest still applies: an adult staying with you at least the first night, health conditions under control, and the willingness to get up and walk early. You head home once you are walking safely, taking food and fluids, and comfortable on oral pain pills.

Once you are steady, the flat walking routes along the waterfront parks on the Kaka‘ako shore are a sensible place for short early walks, with a companion beside you. Therapy gets going on your first or second day home, with the clinic’s own therapists at Ala Moana or any licensed therapist you choose. The first post-operative check falls around one week out, and after that the implant gets an X-ray every year. The knee recovery guide and the first year after a hip describe the months ahead.

Patients from across Hawai‘i on their care

  • “After both surgeries, went home of about 20 steps the same day. Out of a walker in about a week with PT & personal motivation.”

    — Edward I. · Google review · 2026
  • “You can tell this Dr loves his job and cares about his patients! That’s reassuring to me who is very apprehensive about my whole knee issue. I’m not worrying so much now as I feel I’ll be in good hands.”

    — Linda · Google review · 2026

Read more patient reviews →

Common questions from Kaka‘ako patients

I live in a Kaka‘ako high-rise. What should I check at home before same-day surgery?
Start with the elevator. Ask building management whether any elevator work is scheduled around your surgery date, and know what you would do if that elevator were out of service. Then walk the route from the drop-off point to your door and look for curbs, a step at the lobby entrance, heavy doors or a long corridor. Inside, make sure a walker fits through the doorways and into the bathroom, and arrange for an adult to stay with you at least the first night.
Could I be a partial knee candidate?
Possibly; an exam plus X-rays taken while you stand will settle it. A partial suits a knee with wear limited to a single compartment, the ACL still intact, good ability to straighten, and only mild deformity that can be corrected, in someone whose pain has held on through therapy, medication and injections. When two or three compartments are worn, the ACL is torn or gone, the arthritis is inflammatory, such as rheumatoid, or the deformity is severe, a total fits better. A consultation at the Ala Moana clinic next door gives you the answer.
How long will I use a walker?
Expect a front-wheeled walker for about the first couple of weeks. Many patients are up on it the day of surgery, and the change to a cane comes when balance is ready. The walker is often arranged through the hospital or your insurance. In a high-rise, practice the trip from your unit to the elevator and lobby with it before you need to make it alone, and keep the path inside clear of loose mats and furniture. Your therapist will tell you when to step down to a cane.
Can my physical therapy be near my home?
Yes. From Kaka‘ako, a convenient choice is the practice’s own physical therapists in the Ala Moana clinic building, working steps away from Dr. Morton’s surgical team. You can also choose any licensed physical therapist convenient to you; the office can suggest therapists nearby and sends Dr. Morton’s written protocols directly to whoever treats you. Your first session comes on the first or second day after you get home, either in your apartment or at a clinic.
How soon can I swim after a hip or knee replacement?
It depends on which joint. A new knee stays out of pools and the ocean until the incision has healed and you have been cleared, typically at six weeks. With a new hip, pool swimming is usually allowed once the incision is sealed and you are cleared, commonly around a month, while the ocean, snorkeling and paddling wait for around three months. A seated outrigger canoe suits a new hip once you can climb in and out; stand-up paddling has to wait for steady single-leg balance. Until then, the waterfront parks are for walking.
Does Medicare cover robotic surgery?
Using the robot leaves your Medicare coverage exactly where it would be for the same operation done without one. The robotic part of the operation is billed within the standard joint replacement; there is neither a technology fee nor a separate patient fee. Medicare is accepted at the Ala Moana clinic, and with traditional Medicare you can generally self-refer. The office verifies your benefits before your visit, and the list of accepted plans shows what else is taken.
Why does my knee replacement still hurt?
Persistent pain after a knee replacement has a cause, and the job is to find it before anyone suggests another operation. Possible causes include loosening, a low-grade infection, instability, stiffness and a component in the wrong position; after a partial, arthritis in another compartment is a common one. Sometimes the pain comes from elsewhere, such as the spine or a nearby tendon. The workup compares X-rays with earlier films, checks blood tests, samples joint fluid when infection is possible, and may add a metal-artifact-reduction MRI or CT. Start at the revision clinic.
How do I know if my implant is loose?
At first, you may not. Loosening can stay silent for a long time, which is why a yearly X-ray is recommended for every replaced joint: films compared year to year can show it early. When symptoms do appear, the clinic asks about pain when you first stand and start walking, a knee or hip that gives way, and pain at night. None of these proves loosening alone, so the workup also rules out infection. The implant surveillance page explains the yearly check.

Every patient’s questions, answered in full

Schedule a consultation from Kaka‘ako

From Kaka‘ako the Ala Moana clinic is next door, so book a consultation to learn whether a partial knee, a total knee or a new hip fits you.

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.