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Related Concept Videos

Knee Joint01:23

Knee Joint

2.6K
The knee joint is the most complicated joint in the body. It consists of three articulations– two tibiofemoral and one patellofemoral. As is characteristic of synovial joints, the knee joint has a thin articular capsule that partially surrounds this joint cavity. Additionally, several ligaments, muscles, and cartilaginous structures support the movement of the knee.
A total of seven ligaments support the knee joint. The patellar ligament, which is also attached to the quadriceps femoris...
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The Use of Mixed Reality in Custom-Made Revision Hip Arthroplasty: A First Case Report
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Revision knee surgery: the practical approach.

Paolo Salari1, Andrea Baldini1

  • 1Institute for Complex Arthroplasty and Revisions (ICAR), Villa Ulivella Clinic, Florence, Italy.

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|July 16, 2021
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Summary

Revision total knee arthroplasty (rTKA) requires a meticulous step-by-step surgical approach. Accurate diagnosis, precise planning, and appropriate fixation techniques are crucial for successful outcomes and long-term implant survival.

Keywords:
reconstructionrevision total knee arthroplastysurgical techniques

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Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering

Background:

  • Revision total knee arthroplasty (rTKA) presents significant challenges with variable outcomes.
  • Identifying the primary cause of failure is essential for successful revision surgery.

Purpose of the Study:

  • To outline a systematic, step-by-step approach for revision total knee arthroplasty.
  • To emphasize critical considerations for achieving reproducible and successful surgical results.

Main Methods:

  • Detailed preoperative planning and accurate diagnosis of failure etiology.
  • Emphasis on bone preservation during component removal and selection of efficient surgical tools.
  • Application of 'dual-zone' fixation principles for long-term implant survivorship.
  • Balancing flexion and extension gaps and managing ligamentous laxity.

Main Results:

  • A structured approach facilitates overcoming surgical complexities in rTKA.
  • Preventing bone loss and employing appropriate fixation (e.g., short cemented stems with metaphyseal fixation) are key.
  • Proper gap balancing and management of laxity (e.g., using constrained prostheses) are vital.

Conclusions:

  • A comprehensive, planned strategy is fundamental for successful revision total knee arthroplasty.
  • Optimal implant fixation and biomechanical balancing contribute to long-term implant survival and functional outcomes.