Mako enables a new level of accuracy for partial knee and total hip replacement

MAKOplasty®Mako is an innovative treatment option for adults living with early to mid-stage joint degeneration of the hip or knee. It allows for reproducible precision and smaller incisions during surgery.

MidState Medical Center is among the first in Central Connecticut to offer patients a new tool in orthopedic surgery. Mako Partial Knee resurfacing and Mako Total Hip replacement procedures uses the RIO® Robotic Arm Interactive Orthopedic System. RIO is a surgeon-controlled robotic arm system that enables even more precise alignment and placement of implants.

RIO enables surgeons to personalize partial knee and total hip arthroplasties to achieve optimal results with a level of accuracy previously unattainable with conventional instrumentation. The RIO System features a patient-specific visualization system and robotic arm technology that is integrated with surgical instruments. It assists surgeons in pre-planning and treating each patient uniquely.

A speedier, less intrusive
surgery and recovery


Mako Partial Knee resurfacing is a treatment option for adults living with early to mid-stage osteoarthritis that has not yet progressed to all three compartments of the knee. It is less invasive than traditional total knee surgery. A pre-surgical plan is created based on a CT scan of the patient's knee. The surgeon uses the robotic arm during surgery to resurface the diseased portion of the knee, sparing healthy bone and surrounding tissue for a more natural feeling knee. An implant is then secured in the joint to allow the knee to move smoothly again.

During Mako Total Hip replacement surgery, RIO provides visualization of the joint and biomechanical data to guide the bone preparation and implant positioning to match the pre-surgical plan. After first preparing the femur or thighbone, the surgeon uses the robotic arm to accurately shape the acetabulum socket in the hip, and then implant the cup at the correct depth and orientation. The surgeon then implants the femoral implant. Mako offers the confidence of more accurate cup placement and accurate leg length restoration.
Like other total hip replacement procedures, Mako may be a treatment option for people who suffer from either non-inflammatory or inflammatory degenerative joint disease.

Robotic Arm Interactive Orthopedic System (RIO®)

The RIO® Robotic Arm Interactive Orthopedic System features three dimensional pre-surgical planning. During surgery, the RIO® provides the surgeon with real-time visual, tactile and auditory feedback to facilitate optimal joint resurfacing and implant positioning. It is this optimal placement that can result in more natural knee motion following surgery.

RIO® assists the surgeon in achieving natural knee kinematics and optimal results at a level of precision previously unattainable with conventional instrumentation.

  • Accurately plan implant size, orientation and alignment utilizing CT-derived 3-D modeling
  • Enabling the pre-resection capture of patient-specific kinematic tracking through full flexion and extension
  • Real-time intra-operative adjustments for correct knee kinematics and soft-tissue balance
    Minimally invasive and bone sparing, with minimal tissue trauma for faster recovery