Mako Robotic-Arm Assisted Technology
We understand that making sure you know what to expect from your joint
replacement experience is important to you. As you are reading through
this material, if you have additional questions please reach out to us
Each patient is unique, and can experience joint pain for different reasons.
It’s important to talk to us about the reason for your joint pain
so you can understand the treatment options available to you. Pain from
arthritis and joint degeneration can be constant or come and go, occur
with movement or after a period of rest, or be located in one spot or
many parts of the body. It is common for patients to try medication and
other conservative treatments to treat their hip or knee pain. If you
haven’t experienced adequate relief with those treatment options,
you may be a candidate for Mako Total Hip, Total Knee or Partial Knee
replacement, which may provide you with relief from your joint pain.
How Mako Technology works
Mako Robotic-Arm Assisted Technology provides you with a personalized surgical
plan based on your unique anatomy. First, a CT scan of the diseased hip
or knee joint is taken. This CT scan is uploaded into the Mako System
software, where a 3D model of your hip or knee is created. This 3D model
is used to pre-plan and assist your surgeon in performing your joint replacement
In the operating room, your surgeon follows your personalized surgical
plan while preparing the bone for the implant. The surgeon guides the
robotic-arm within the pre-defined area and the Mako System helps the
surgeon stay within the planned boundaries that were defined when the
personalized pre-operative plan was created. In a laboratory study, Mako
Total Knee Technology demonstrated accurate placement of implants to a
personalized surgical plan.1 This study also showed that Mako Total Knee replacement demonstrated soft
tissue protection to the ligaments around the knee.1 In patient and laboratory studies on Mako Total Hip and Partial Knee replacement,
Mako Technology demonstrated accurate placement of implants to a personalized
Total knee vs. partial knee replacement
Based on the severity of the arthritis in the knee, total or partial knee
replacement may be recommended by a surgeon. Both procedures involve the
orthopaedic surgeon guiding the Mako Robotic-Arm to remove diseased bone
Mako Robotic-Arm Assisted Partial Knee replacement is a treatment option for adults living with early to mid-stage osteoarthritis
(OA) that has not yet progressed to all three compartments of the knee.
Depending on where the arthritis affects the knee, patients may have an
implant inserted in any of the following areas:
Step 1. Knee CT Scan
Step 2. Knee Personalized Planning
Mako Robotic-Arm Assisted Total Knee replacement is a treatment option for adults living with mid to late-stage osteoarthritis
of the knee. With Mako Total Knee replacement, the entire knee joint is
replaced and the surgeon inserts a Triathlon Total Knee implant. With
over a decade of clinical history, Triathlon knee replacements are different
than traditional knee replacements because they are designed to work with
the body to promote natural-like circular motion.5-8
Step 1. Knee CT Scan
Step 2. Knee Personalized Planning
Total hip replacement
Mako Robotic-Arm Assisted Total Hip replacement is a surgical procedure intended for patients who suffer from non-inflammatory
or inflammatory degenerative joint disease (DJD). Some forms of DJD include
osteoarthritis (OA), post-traumatic arthritis, rheumatoid arthritis (RA),
avascular necrosis (AVN) and hip dysplasia.
Step 1. Hip CT Scan
Step 2. Hip Personalized Planning
It’s important to understand that the surgery is performed by an
orthopaedic surgeon, who guides the robotic-arm during the surgery to
position the implant in the knee and hip joints. The Mako Robotic-Arm
does not perform surgery, make decisions on its own, or move without the
surgeon guiding it. The Mako System also allows your surgeon to make adjustments
to your plan during surgery as needed.
Hip & knee replacements
Hip joint replacement is intended for use in individuals with joint disease
resulting from degenerative and rheumatoid arthritis, avascular necrosis,
fracture of the neck of the femur or functional deformity of the hip.
Knee joint replacement is intended for use in individuals with joint disease
resulting from degenerative, rheumatoid and post-traumatic arthritis,
and for moderate deformity of the knee.
Joint 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 joint, or excessive body weight.
Like any surgery, joint replacement surgery has serious risks which include,
but are not limited to, pain, bone fracture, change in the treated leg
length (hip), joint stiffness, hip joint fusion, amputation, 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, heterotopic bone formation
(abnormal bone growth in tissue), wear of the implant, metal sensitivity,
soft tissue imbalance, osteolysis (localized progressive bone loss), audible
sounds during motion, and reaction to particle debris.
The information presented is for educational purposes only. Speak to your
doctor to decide if joint replacement surgery is appropriate for you.
Individual results vary and not all patients will return to the same activity
level. The lifetime of any joint replacement is limited and depends on
several factors like patient weight and activity level. Your doctor will
counsel you about strategies to potentially prolong the lifetime of the
device, including avoiding high-impact activities, such as running, as
well as maintaining a healthy weight. It is important to closely follow
your physician’s instructions regarding post-surgery activity, treatment
and follow-up care. Ask your doctor if a joint replacement 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: Mako, Stryker, Triathlon. All other trademarks are trademarks of
their respected owners or holders.
- Nawabi DH, Conditt MA, Ranawat AS, Dunbar NJ, Jones J, Banks SA, Padgett
DE. Haptically guided robotic technology in total hip arthroplasty - a
cadaver investigation. Proc Inst Mech Eng H. 2013 Mar22 7(3):302-9
- Illgen R. Robotic assisted total hip arthroplasty improves accuracy and
clinical outcome compared with manual technique. 44th Annual Advances
in Arthroplasty Course. October 7-10, 2014, Cambridge, MA.F
- 1. Bell, Stuart W. MBChB, MRCP, FRCS(T&O), Anthony, IainPhD, Jones,
Bryn MBChB, FRCS(T&O), MacLean, Angus MBChB, RCS(T&O), Rowe, Philip
BSc(Hons), PhD, and Blyth, Mark MBChB, FRCS(T&O). Improved accuracy
of component positioning with robotic-assisted unicompartmental knee arthroplasty.
The Journal of Bone and Joint Surgery. Volume 98-A: Number 8. April 20,
2016. pp 627-35.
- Bell, Stuart W., Anthony, Iain, Jones, Bryn, MacLean, Angus, Rowe, Philip,
and Blyth, Mark. Improved accuracy of component positioning with robotic-assisted
unicompartmental knee arthroplasty. The Journal of Bone and Joint Surgery.
Volume 98-A: Number 8. April 20, 2016. pp 627-35.
- Mistry J, Elmallah R, Chughtai M, Oktem M, Harwin S, Mont M. Long-Term
Survivorship and Clinical Outcomes of a Single Radius Total Knee Arthroplasty.
- Designed to maintain collateral ligament stability throughout the range
of motion. Stryker-Initiated Dynamic Computer Simulations of Passive ROM
and Oxford Rig Test, Stephen Piazza, 2003.
- Wang H, Simpson KJ, Ferrara MS, Chamnongkich S, Kinsey T, Mahoney, OM.
Biomechanical differences exhibited during sit-to-stand between total
knee arthroplasty designs of varying radii. J Arthroplasty. 2006;21(8):1193-1199.
- Gómez-Barrena E, Fernandez-García C, Fernandez- Bravo A,
Cutillas-Ruiz R, Bermejo-Fernandez G. Functional performance with a single-radius
femoral design total knee arthroplasty. Clin Ortho Relates Res. 2010;468(5):1214-1220.
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