Computer assisted knee surgery

With computer-assisted knee surgery your surgeon can create a model of your knee and plan accordingly for surgery. He or she is able to correct potential misalignment during the surgery, and better visualise your anatomy – this is particularly important when minimally invasive surgical techniques are used.

What are the benefits of computer-assisted knee surgery?

The aim of computer-assisted knee surgery is to help your surgeon work more efficiently and align your implant more accurately to your unique anatomy, so you can benefit from:

  • Reduced joint wear, making your implant last longer1,2
  • Shorter rehabilitation time3
  •  Smaller incision4
  • Less blood loss compared to a standard knee replacement5
  • Reduced risk of future dislocation due to correct aligment.1,2

Talk to your doctor about the types of joint surgery appropriate for you and the risks associated with any surgery.

1. Coventry MB. Two-part total knee arthroplasty: evolution and present status. Clin Orthop 1973;145:29-36.
2. Lotke PA, Ecker ML. Influence of positioning of prosthesis in total knee replacement. J Bone Joint Surg [Am] 1977;59-A:77-9.
3. Zanasi, Stefano. Minimally invasive computer-assisted total Knee arthroplasty through a subvastus approach, Oct. 2006. Article from:, accessed Feb. 2011.
4. Keggi, Kristaps. Total hip arthroplasty through a minimally invasive anterior surgical approach, JBJS, Vol. 85-A.
5. Kalairajah, et al., Blood loss after total knee replacement, JBJS, Vol. 87-B, No. 11, Nov. 2005.

Learn more about knee surgery procedures

Learn more about knee surgery procedures

Advances in knee replacement surgery

Recent improvements in knee replacement surgery technology and techniques have led to better outcomes, such as:

  • Reduced wear on the replacement joint, which extends the life of your implant, and
  • Shorter post-operative rehabilitation, so you can resume everyday activities sooner.

Read some information on computer assisted knee surgery here - you may wish to discuss it with your orthopaedic surgeon.

Next Steps

Contact your GP or health professional to discuss your options