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Related Experiment Video

Updated: Jul 15, 2026

In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty
07:33

In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty

Published on: May 5, 2023

[Precise, computed-assisted leg angle correction with open-wedge high tibial osteotomy].

R Hart1, V Stipcák, B Kucera

  • 1Abteilung für Orthopädie und Traumatologie, AKH Znojmo, Dr. J. Janského 11, 669 02 Znojmo, Tschechische Republik. primar.ortopedie@nemzn.cz

Der Orthopade
|April 27, 2007
PubMed
Summary

Computer-assisted open-wedge high tibial osteotomy using navigation systems and LCP fixation provides accurate and reliable correction for knee alignment. This method ensures stable results and patient satisfaction with preserved range of motion.

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The tibia is the main weight-bearing bone of the lower leg. It is larger than the fibula with which it is paired. The tibia is also the second longest bone in the body and is located right below the skin. The proximal end of the tibia forms the medial and the lateral condyle, which articulates with the condyles of the femur to form the knee joint. Between the articulating surfaces is the irregular elevated area known as the intercondylar eminence that serves as the inferior attachment point for...

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Area of Science:

  • Orthopedic Surgery
  • Biomechanics
  • Medical Technology

Background:

  • Open-wedge high tibial osteotomy (OWHTO) is a surgical procedure to correct knee alignment.
  • Accurate correction and stable fixation are crucial for successful outcomes in OWHTO.
  • Computer-assisted navigation systems offer potential for enhanced precision in osteotomies.

Purpose of the Study:

  • To evaluate the accuracy of a kinematic computer-guided navigation system in open-wedge high tibial osteotomy.
  • To assess the reliability of locking compression plate (LCP) fixation in stabilizing the osteotomy.
  • To demonstrate the clinical and radiological outcomes of computer-assisted OWHTO.

Main Methods:

  • Prospective study involving 39 patients undergoing computer-assisted OWHTO between 2002 and 2003.

Related Experiment Videos

Last Updated: Jul 15, 2026

In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty
07:33

In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty

Published on: May 5, 2023

  • Osteotomy performed using a kinematic computer-guided navigation system and stabilized with internal LCP fixation.
  • Clinical and radiological evaluations conducted at a minimum of 2 years post-surgery.

    • Main Results:

    • Accurate correction to the desired valgus alignment (170 degrees) was achieved in all cases, with a mean correction of 11.1 degrees.
    • The achieved correction remained stable throughout the 2-year follow-up period.
    • All osteotomies healed within 4 months, with full range of motion preserved and high patient satisfaction (Lysholm score improved from 55 to 82).

    Conclusions:

    • Computer-assisted open-wedge high tibial osteotomy with LCP fixation yields precise and reproducible results.
    • The navigation system demonstrates accuracy, and LCP fixation proves reliable for OWHTO.
    • This technique offers a stable and effective solution for knee alignment correction without loss of correction.