The following symptoms may be signs of osteoarthritis:1, 2

  • Pain: Sharp or burning pain, occasional or constant, that may be experienced within the knee joint itself or perceived as discomfort in the knees
  • Joint tenderness and swelling
  • Stiffness, especially in the morning or after sitting for long periods
  • Reduced movement or loss of flexibility
  • Unusual grating sensations, as well as crunching or creaking sounds
  • Age
  • Gender
  • Obesity
  • Bone Deformities
  • Joint Injuries
  • Certain Diseases

Two important factors associated with successful long-term outcomes for knee surgery are precise implant placement and alignment. The computer-assisted Surgical Assistant tool, in conjunction with the 3D planning workstation, results in significant improvements in implant placement and alignment compared with traditional manual surgery.3

Knee replacement is not for everyone, and, as with all surgeries, there are potential risks and complications, including increased radiation exposure from a required CT scan and blood loss. The THINK Surgical procedure is not recommended for individuals who are pregnant, obese, have previous metal leg implants, poor bone quality, certain bone diseases, or are still growing.

Individual results vary. Consult with your orthopedic surgeon to fully review your conditions, treatment options, and potential risks and complications. Only your orthopedic surgeon can determine if the THINK Surgical procedure is right for you.

Good bone quality and overall general health are the most important considerations. Age is not usually a factor when determining good candidates for the THINK Surgical procedure. Severe osteoporosis (decreased bone density) and/or severe deformity of the operative femur are contraindications for the THINK Surgical surgery.

Individuals should be evaluated by their primary care physician and an orthopedic surgeon to ensure that they are suitable candidates for hip replacement surgery.

Contact your insurance provider and consult with your surgeon about coverage.

Although recovery times vary, patients generally resume normal activities within 4–8 weeks.4 To strengthen joints and muscles, the use of canes and walkers is common during the first phases of recovery and most patients work with physical therapists to speed the recovery process.


Content on this Web page is for informational purposes and is not intended to be a substitute for the advice of a doctor or healthcare professional or a recommendation for any particular treatment plan. It is important that you rely on the advice of a doctor or a healthcare professional for your specific condition. As with all surgeries, there are potential risks and complications. It is recommended that you consult with an orthopedic surgeon to fully review your history and current conditions, treatment options, potential risks and complications. Many of the risks and adverse effects associated with joint replacement surgery are also present with a joint replacement surgery that is assisted with the TSolution One active robot. Individual results may vary. Only your orthopedic surgeon can determine if the TSolution One active robot is right for you.


1 Lane NE. Osteoarthritis of the Hip. N Engl J Med. 2007;357:1413–1421.
2 Cooper C, Inskip H, Croft P, et al. Individual risk factors for hip osteoarthritis: obesity, hip injury, and physical activity. Am J Epidemiol. 1998;147:516–522.
3 Netravali, Nathan et al., “A Perspective on Robotic Assistance for Knee Arthroplasty.” Advanced in Orthopedics vol. 2013(2013): DOI 10.1155/2013/970703.
4 Osteoarthritis. MedlinePlus website Updated August 3, 2013. Accessed July 2014.

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