Patient Education

Minimally Invasive Knee Surgery

Minimally Invasive Surgery (MIS) for Knee Replacement
Minimally invasive surgery is improving patient's lives after knee replacement. Many patients have less post operative pain, recover faster and are hospitalized for only one or two nights. The benefits derived from minimally invasive surgery are due to the fact that no incision is made in the quadriceps tendon (the large muscle on the front of the thigh) and the procedure is done through as small of skin incision as is possible (depending on individual patient factors) causing less traumas to the soft tissues. We combine MIS technique with computer navigated instrumentation for the most precise placement of your new knee.

Computer Assisted Surgery (CAS) is one approach to reduce surgical errors and improve surgical outcomes associated with knee and hip surgery.

Computer assisted orthopedic surgery is defined as techniques that enhance identification of surgical anatomy thereby improving surgical accuracy. These computer based tools increase the repeatability and accuracy of surgical procedures and should improve quality control in orthopedic surgery.

Computer Navigation utilizes an operating room based computer and infra-red transducers pinned to the thigh and shin bones. The patient's unique anatomy is mapped and displayed on the computer screen. This real time anatomic data is used to plan and verify bone cuts for precise implant placement.

Potential advantages of CAS are:
  • -Enables the surgeon to create accurate and reproducible bone cuts helping to ensure accurate placement of Total Knee implants.
  • -Greatly reduces possibility of MIS technique component mal-positioning.
  • -Vital for complex TKR when unusual bone deformities are present.
  • -Valuable tool when performing revision total knee replacement.

Potential disadvantages of CAS are:
  • -Time in operating room could be longer due to setup, calibration and usage of computer.
  • -Navigation Pin breakage, femur or tibia fracture/stress fracture, prolonged bleeding/drainage from navigation pin sites (all rarely occur).
  • -Computer or tracker malfunction could require conversion to traditional total knee instruments (rarely occurs).