Orthopedic Services of MMC to Offer Robot-Assisted Total and Partial Knee Replacement

Orthopedic Services of Memorial Medical Center (MMC) in Ashland will now be offering total and partial knee surgery utilizing robotic-assisted technology. The hospital recently purchased a NAVIO™ Surgical System for the new orthopedic surgeons who will begin practicing this month. MMC is the first hospital in northern Minnesota, Wisconsin or Michigan to invest in this technology.

The NAVIO system includes an advanced computer program that builds a 3D map of the patient’s knee and then relays precise, real-time information to the robotics-assisted handheld tool that is used by the surgeon during surgery. By collecting this type of patient-specific information, the surgeon is able to establish spatial boundaries for the handpiece as it removes the damaged surfaces of the knee, assists with balancing of the ligaments of the joint and helps accurately position the implant.[i] Also, unlike other systems that require patients to undergo a pre-operative CT-scan, the NAVIO system from Smith & Nephew is entirely CT-free.

“I have performed over 1,000 total and partial knee replacements with the standard technique for approximately 7 years with positive outcomes,” says Dr. Joseph Signorelli, orthopedic surgeon at MMC. “However, standard techniques replace each patient’s knee in a standard fashion and do not always accommodate individual variation between patients. The NAVIO system allows the procedure to be tailored to each patient’s exact anatomy. I believe this will allow for a more accurate knee replacement surgery. The NAVIO system will allow us to build upon our years of experience performing outpatient partial knee replacement with the latest in robotic-assisted smart instrumentation.”

Partial knee replacement is a potential alternative to total knee replacement for patients with early to mid-stage osteoarthritis that is generally limited to one compartment of the knee. The procedure removes and replaces the damaged portion of the knee with an implant, sparing the cruciate ligaments that are vital to knee stability, and preserving healthy bone and cartilage. In contrast to total knee replacement, partial knee replacement may offer patients:

  • Less pain[ii]
  • A more normal feeling kneeii
  • Smaller incisions[iii]

Results may not represent typical surgical outcomes. Every surgery and each patient undergoing knee replacement represents unique sets of circumstances and, therefore, results will vary. In Ashland, both Dr. Joseph Signorelli and Dr. Justin Cummins will provide this service.

To learn more about who may benefit from a NAVIO knee surgical procedure, please call Orthopedic Services of Memorial Medical Center at 715-685-6010 or read more about NAVIO.

NOTE: NAVIO is not for everyone. Children, pregnant women, patients who have mental or neuromuscular disorders that do not allow control of the knee joint, and morbidly obese patients should not undergo a NAVIO procedure.

About Smith & Nephew

Smith & Nephew is a global medical technology business dedicated to helping healthcare professionals improve people’s lives. With leadership positions in Orthopaedic Reconstruction, Advanced Wound Management, Sports Medicine and Trauma & Extremities, Smith & Nephew has around 15,000 employees and a presence in more than 100 countries. Annual sales in 2017 were almost $4.8 billion. Smith & Nephew is a member of the FTSE100 (LSE:SN, NYSE:SNN). For more information about Smith & Nephew, please visit our website www.smith-nephew.com, follow @SmithNephewplc on Twitter or visit SmithNephewplc on Facebook.com.

™ is a Trademark of Smith & Nephew

[i] Lonner, et al. “High Degree of Accuracy of a Novel Image-free Handheld Robot for Unicondylar Knee Arthroplasty in a Cadaveric Study.” Clinical Orthopaedics and Related Research. Advanced online publication. DOI 10.1007/s11999-014-3764-x5 American Association of Orthopaedic Surgeons (2014). AAOS.org.

[ii] Hall et al., “Unicompartmental Knee Arthroplasty (Alias Uni-Knee): An Overview With Nursing Implications,” Orthopaedic Nursing, 2004; 23(3): 163-171.

[iii] Repicci, JA, et al., “Minimally invasive surgical technique for unicondylar knee arthroplasty,” J South Orthopedic Association, 1999 Spring; 8(1): 20-7.