The Mako Difference

Mako Partial Knee can help lead to better outcomes, like less pain and shorter recovery times2, compared to manual surgery.

In clinical studies, compared to manual partial knee replacement surgery, Mako Partial Knee demonstrated:

  • More accurate bone removal, which may result in improved outcomes and functioning of the knee.1,2

  • Less pain in the days and weeks following surgery.2,3

  • Shorter hospital stay.2

  • Quicker recovery, where 9 out of 10 patients were walking without an aid, such as a cane or walker, three weeks after surgery.4

  • 91% of patients being satisfied or very satisfied five years after surgery, and 92% satisfied or very satisfied ten years after surgery.5,6

Learn more about Mako Robotic-Arm assisted surgery.

Discover Mako SmartRobotics™ surgeons near you to see if a Mako Knee procedure is an option for you.

The journey of Mako Partial Knee Replacement (PKA) surgery

Step 1 - Scan

Before surgery, a CT scan of your knee is taken and used to develop a 3D virtual model of your unique joint.

Doctor looking at a knee CT scan on a computer.

Step 2 - Plan

The second step is patient-specific surgical planning.

Your doctor uses the 3D CT-based model to evaluate your bone structure, disease severity, joint alignment and even the surrounding bone and tissue so that they can determine the desired size, placement and alignment of your implant.

3D model of a knee joint.

Step 3 - Mako Can

In the operating room, your surgeon guides Mako’s robotic arm to remove arthritic bone and cartilage from the knee.

Mako’s Accustop™ technology creates a virtual boundary that provides tactile resistance to help the surgeon stay within the boundaries defined in your surgical plan.

Throughout the procedure, Mako provides real-time data to your surgeon, allowing them to assess the movement and tension of your joint and adjust your surgical plan if desired.

Knee joint during surgery with Mako Robotic-Arm.

Is Mako right for me?

Mako Partial Knee is for people who:

  • Experience severe knee pain or stiffness resulting from: noninflammatory degenerative joint disease (including osteoarthritis, traumatic arthritis, or avascular necrosis), rheumatoid arthritis or post-traumatic arthritis.

  • Haven’t experienced adequate relief with conservative treatment options, like bracing, medication or joint fluid supplements.

  • Have early to mid-stage osteoarthritis that doesn’t affect all 3 compartments of the knee.

  1. Bell SW; Anthony I; Jones B; MacLean A; Rowe P; Blyth M. Improved accuracy of component positioning with robotic-assisted unicompartmental knee arthroplasty: data from a prospective, randomized controlled study. J Bone and Joint Surg. 2016;98: 627-35.
  2. Kayani B, Konan S, Tahmassebi J, Rowan FE, Haddad FS. An assessment of early functional rehabilitation and hospital discharge in conventional versus robotic-arm assisted unicompartmental knee arthroplasty: a prospective cohort study. Bone Joint J. 2019;101-B(1):24-33.
  3. Blyth MJ, Anthony I, Rowe P, Banger MS, MacLean A, Jones B. Robotic-arm assisted versus conventional unicompartmental knee arthoplasty: Exploratory secondary analysis of a randomized controlled trial. Bone and Joint Research. 2017 Nov 16 (11):631-9.
  4. Coon T, Shi S, DeBattista J. Clinical and functional outcomes of robotic-arm assisted medial unicompartmental knee arthroplasty. Poster No. P59. European Knee Society 2017 Annual Meeting. London, England.. April 19-21, 2017.
  5. Kleeblad LJ, Borus TA, Coon TM, Dounchis J, Nguyen JT, Pearle AD. Midterm Survivorship and Patient Satisfaction of Robotic-Arm-Assisted Medial Unicompartmental Knee Arthroplasty: A Multicenter Study. J Arthroplasty. 2018;33(6):1719-1726.
  6. Bayoumi T, Kleeblad L, Coon, T, Borus t, Douncis J, Nguyen J, Pearle A. Ten-year survivorship and patient satisfaction of robotic-arm assisted unicompartmental knee arthroplasty: A prospective multicenter study. ,Poster presentation 011. 2023 Annual Meeting of the American Academy of Orthopaedic Surgeons. March 7-11, Las Vegas, Nevada.
Important information

Partial Knee Replacement

Partial knee replacement is intended for use in individuals with joint disease resulting from degenerative and post-traumatic arthritis, and for moderate deformity of the knee.

Partial knee replacement surgery is not appropriate for patients with certain types of infections, any mental or neuromuscular disorder which would create an unacceptable risk of prosthesis instability, prosthesis fixation failure or complications in postoperative care, compromised bone stock, skeletal immaturity, severe instability of the knee, or excessive body weight.

As with any surgery, knee replacement surgery has serious risks which include, but are not limited to, pain, infection, bone fracture, peripheral neuropathies (nerve damage), circulatory compromise (including deep vein thrombosis (blood clots in the legs)), genitourinary disorders (including kidney failure), gastrointestinal disorders (including paralytic ileus (loss of intestinal digestive movement)), vascular disorders (including thrombus (blood clots), blood loss, or changes in blood pressure or heart rhythm), bronchopulmonary disorders (including emboli, stroke or pneumonia), heart attack, and death.

Implant related risks which may lead to a revision of the implant include dislocation, loosening, fracture, nerve damage, wear of the implant, metal and/or foreign body sensitivity, osteolysis (localized progressive bone loss), and reaction to particle debris. Partial knee implants may not provide the same feel or performance characteristics experienced with a normal healthy joint.

The information presented is for educational purposes only. Speak to your doctor to decide if joint replacement surgery is right for you. Individual results vary and not all patients will return to the same postoperative activity level. The lifetime of any joint replacement is limited and varies with each individual. Your doctor will counsel you about how to best maintain your activities in order to potentially prolong the lifetime of the device. Such strategies include not engaging in high-impact activities, such as running, as well as maintaining a healthy weight. It is important to closely follow your doctor’s instructions regarding post-surgery activity, treatment and follow-up care. Ask your doctor if Robotic-Arm Assisted Surgery is right for you.

Stryker Corporation or its other divisions or other corporate affiliated entities own, use or have applied for the following trademarks or service marks: AccuStop, Mako, Stryker. All other trademarks are trademarks of their respective owners or holders.


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