The 5 principles to perform restricted kinematic alignment total knee arthroplasty

Dr Pascal-André Vendittoli is a professor of surgery at University of Montreal, Canada who performs kinematic alignment TKA since 2011. He proposed the “restricted” kinematic alignment protocol (rKA) to reliably produce a prosthetic knee with component/knee/limb alignments that always fall within an evidence-based safe alignment range which is compatible with long term implant survivorship. In the current video, he is presenting the scientific bases for this surgical technique. He will describe the five principles to perform rKA successfully. Papers of interest:
- Almaawi AM, Hutt JRB, Masse V, Lavigne M, Vendittoli PA. The Impact of Mechanical and Restricted Kinematic Alignment on Knee Anatomy in Total Knee Arthroplasty. J Arthroplasty. 2017 Jul;32(7):2133-2140. doi: 10.1016/j.arth.2017.02.028.
- Hutt JR, LeBlanc MA, Massé V, Lavigne M, Vendittoli PA. Kinematic TKA using navigation: Surgical technique and initial results. Orthop Traumatol Surg Res. 2016;102(1):99-104. doi:10.1016/j.otsr.2015.11.010
-Blakeney W, Beaulieu Y, Kiss MO, Rivière C, Vendittoli PA. Less gap imbalance with restricted kinematic alignment than with mechanically aligned total knee arthroplasty: simulations on 3-D bone models created from CT-scans. Acta Orthop. 2019;90(6):602-609. doi:10.1080/17453674.2019.1675126
For more information, please visit the Personalized Arthroplasty Society web site: www.personalizedarthroplasty.com

[@shoshanaThrive365]

Is the infrapatellar branch of the saphenous nerve cut during kinematic alignment?

[@rideon6140]

I am not a doctor - but my research indicates that is cut when the incision is made down the center of the front of the knee. The result is some numbness in that area and on the outside of the shin which may or may not improve over time - most people dont have a problem with having some numbness there.

[@personalized_arthroplasty]

Kinematic alignment concerns itself more with the positioning of implants and can be done through various surgical approaches including those that attempt to preserve the infra patellar branch of the saphenous nerve.