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Computer-Aided Surgery-Navigated, Functional Alignment Total Knee Arthroplasty: A Surgical Technique.

William B O'Callaghan1,2,3,4, Conor Gouk1,3,4,5, Matthew P R Wilkinson1,6

  • 1The Orthopaedic Research institute of Queensland (ORIQL), Pimlico Townsville, Queensland, Australia.

Arthroplasty Today
|March 17, 2022
PubMed
Summary

Functional alignment offers a new approach to total knee arthroplasty, addressing limitations of previous methods. This technique aims for natural knee function by integrating pre-operative imaging, computer assistance, and intra-operative balancing.

Keywords:
AlignmentFunctional alignmentKinematicsTotal knee arthroplasty

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Area of Science:

  • Orthopedic Surgery
  • Biomechanical Engineering

Background:

  • Traditional total knee arthroplasty (TKA) alignment techniques, including mechanical and kinematic alignment, have demonstrated limitations.
  • These limitations necessitate the exploration of novel alignment philosophies to optimize patient outcomes.

Purpose of the Study:

  • To detail a surgical technique for achieving functional alignment in total knee arthroplasty.
  • To provide a comprehensive guide for surgeons implementing this advanced alignment strategy.

Main Methods:

  • Functional alignment integrates preoperative radiographic analysis, computer-aided surgery (CAS), and intraoperative assessment of joint balance.
  • This approach prioritizes restoring natural knee kinematics while minimizing the need for extensive soft-tissue release.

Main Results:

  • The described technique facilitates the achievement of "normal" knee kinematics.
  • It aims to improve patient-reported outcomes and satisfaction following total knee replacement.

Conclusions:

  • Functional alignment represents a significant advancement in total knee arthroplasty techniques.
  • This philosophy holds the potential to enhance functional recovery and long-term success in knee replacement surgery.