Partial Knee Replacement

partial-knee-replacement

WHAT ARE THE PARTS OF HUMAN KNEE AND WHICH AMONG THEM COMMONLY GETS INVOLVED IN ARTHRITIS?

The knee joint is a cluster of three small compartments, namely the inner (medial), outer (lateral) and the knee cap (patella-femoral) compartment.

Arthritis due to aging usually affects the medial or inner compartment. In other words wear and tear of the knee has a strong tendency to restrict itself to a particular compartment, most commonly the inner one.

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partial-knee-replacement

What is partial knee Replacement?

Partial knee Replacement is a surgical procedure done to replace the worn-out inner compartment of the knee (white arrow).

Unlike total knee replacement where the entire joint is replaced, in partial knee replacement at least 70% of the knee joint is preserved.

What is Patello-Femoral (Kneecap) Replacement?

The Patello-Femoral or the kneecap Replacement is done when the wear and tear is limited to the knee cap compartment (White arrow).

Such isolated knee cap arthritis can occur after a previous fracture of the knee cap or a developmental abnormality involving the knee cap.

What are the advantages of partial knee Replacement?

  • Preservation of unaffected bone, cartilage, ligaments and soft tissues.
  • Normal joint function and better knee bending.
  • Better sensory feedback.
  • Faster recovery after surgery.
  • Smaller incisions and small scar.
  • Limited disturbance of the tissues.
  • Less blood loss and less pain.
partial-knee-replacement

Chapters & International Research Publications

Dr. Raj Kanna has published a number of papers on Partial Knee Replacement in reputed International Journals that include:

  1. Modular Bicompartmental Knee Arthroplasty: Indications, technique, prosthetic design, and results. Accepted in Acta Orthopaedica Belgica, Vol.83 -1- 2017.
  2. Patello-Femoral Arthroplasty in a bilateral Syme’s Amputee – a case report. J Clin Orthop Trauma. 2016 Jan-Mar; 7(1): 40-4
  3. Post-Operative Limb Alignment And its Determinants after Minimally Invasive Oxford Medial Unicompartmental Knee. Journal of Arthroplasty Sep 2011, 26(6); 919-25.
  4. Dr. Kanna has also coauthored a chapter titled Uni-Compartmental Knee Arthroplasty for the second edition of the book titled Textbook of Orthopaedics and Trauma published by the Indian Orthopaedic Association.