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Related Experiment Videos

Assessing patellar tracking during total knee arthroplasty: a technical note.

Nitin Goyal1, Wadih Y Matar, Javad Parvizi

  • 1Arthroplasty Surgeon, Anderson Orthopaedic Clinic, Alexandria, Virginia. ngoyal1@gmail.com.

American Journal of Orthopedics (Belle Mead, N.J.)
|February 5, 2013
PubMed
Summary
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A new Vertical Patella Test aids total knee arthroplasty by reliably assessing lateral retinaculum tightness, crucial for preventing common patellar complications post-surgery.

Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering
  • Knee Arthroplasty

Background:

  • Proper patellar tracking is a critical goal in total knee arthroplasty (TKA).
  • Postoperative patellar complications are frequent and impact TKA outcomes.
  • Factors like component alignment and lateral retinaculum tightness influence patellar motion.

Purpose of the Study:

  • To introduce a novel, simple, and reliable technique for assessing intraoperative lateral retinaculum tightness.
  • To provide an additional tool for surgeons to evaluate and ensure adequate patellar tracking during TKA.

Main Methods:

  • Description of the novel Vertical Patella Test.
  • Comparison with existing intraoperative tests for patellar tracking assessment (e.g., no thumb test, towel clip test).

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  • Proposal for future validation through prospective comparative studies.

    • Main Results:

    • The Vertical Patella Test is presented as a straightforward and dependable method.
    • It specifically targets the assessment of lateral retinaculum tightness, a key factor in patellar stability.
    • The test is intended for use alongside established intraoperative assessment techniques.

    Conclusions:

    • The Vertical Patella Test offers a valuable addition to the surgeon's toolkit for TKA.
    • It aims to improve the prevention of patellar complications by ensuring optimal intraoperative patellar tracking.
    • Further clinical validation is recommended to confirm its efficacy in a prospective setting.