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York Hospital and Dr. Akhilesh Sastry of Atlantic Orthopaedics and Sports Medicine introduce Robotic Assisted Partial Knee Surgery

Minimally invasive procedure for early to mid-stage osteoarthritis may provide quicker recovery and more natural feeling knee post-surgery


(York, Maine) York Hospital and Dr. Sastry announced today that they are now offering robot-assisted partial knee replacement; a minimally invasive treatment option for adults living with early to mid-stage osteoarthritis that has not yet progressed to all three compartments of the knee. This provides a less invasive option than traditional total knee surgery and is performed using a highly advanced, surgeon controlled robotic arm system (RIO). York Hospital and Dr. Sastry are the first to acquire and practice this technology in Maine and New Hampshire.


Using robot-assisted surgery for partial knee procedures, Dr. Sastry and the York Hospital Surgery Center offer the potential for the following benefits, as compared with total knee surgery:


-         Reduced pain

-         Minimal hospitalization

-         Faster recovery

-         Less implant wear and loosening

-         Smaller scar

-         Better motion and a more natural feeling knee


 “Robotic assisted knee surgery allows us to treat patients with knee osteoarthritis with greater precision than ever possible. Because it is less invasive and preserves more of the patient’s natural knee anatomy, the goal for patients is not only to have relief from their pain but also to gain back knee motion, and return to their daily activities at an earlier interval,”said Dr. Akhil Sastry of Atlantic Orthopaedics. 


The robotic system enables the surgeon to complete a customized patient specific pre-surgical plan that details the technique for implant positioning using a CT scan of the patient’s own knee. During the procedure, the system creates a three-dimensional, virtual view and correlates the image to the pre-programmed surgical plan. As the surgeon uses the robotic arm, its tactile, auditory and visual feedback isolates the diseased areas, providing real time adjustments and optimal implant positioning for each individual patient.  

It is powered by the RIO Robotic Arm Interactive Orthopedic System, which allows for consistently reproducible precision in performing partial knee resurfacing. During the procedure, the diseased portion of the knee is resurfaced, sparing the patient’s healthy bone and surrounding tissue. An implant is then secured in the joint to allow the knee to move smoothly again.





 “Precision is key in planning and performing partial knee surgeries,” said Dr. Sastry. “For a good outcome you need to align and position the implants just right. Precision in surgery, and in the pre-operative planning process, is what York Hospital’s new robotic system can deliver, for each individual patient.”



York Hospital's surgery center mixes advanced technology with personalized care in a comfortable and caring environment. The center is equipped with five surgical suites staffed by a dedicated and highly trained team of specialists that care for patients preoperatively, during surgery and in recovery. Our center is well-equipped with the latest advances in technology and instrumentation for the more than6,500 surgical procedures annually. 


Unlike other more invasive procedures MAKOplasty can often be performed through a four to six inch incision over your knee with small incisions in both your femur (thigh bone) and tibia (shin).

Additionally the preservation of your own natural bone and tissue along with more ideal patient specific implant positioning may also result in a more natural feeling knee. Since healthy bone is preserved, patients who undergo MAKOplasty partial knee procedures may still be a candidate for a total knee replacement procedure later in life if necessary.

A total replacement is sometimes necessary if your MAKOplasty-certified surgeon discovers during surgery that your knee has more damage than originally seen in the pre-operative X-rays and CT scan.

Your physician should discuss the specific risks associated with MAKOplasty and other treatment options with you. In addition, you should be informed of any pre-operative and post-operative instructions by your surgeon or his or her staff.

As a knee arthroplasty procedure, MAKOplasty is typically covered by Medicare - check with your private health insurers. In some cases it may be performed on an outpatient basis depending on what your MAKOplasty-certified surgeon determines is the right course of treatment for you.

If I Undergo MAKOplasty Resurfacing, What Can I Expect?

MAKOplasty can be performed as either an inpatient procedure or on an outpatient basis depending on what your orthopedic surgeon determines is right for you. Hospital stays average anywhere from one to three days; ambulatory patients return home the same day. In many cases, patients are permitted to walk soon after surgery, drive a car in the first few weeks and return to normal daily activities shortly thereafter.

York Hospital Surgery Center
3 Loving Kindness Way
York, Maine 03909
(207) 351-2400

Atlantic Orthopaedics and Sports Medicine
Henry Warner Medical Office Building
York Hospital Campus
16 Hospital Drive, Suite B
York, Maine 03909
(207) 363- 3490


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