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Updated: Jul 15, 2026

Anterior Cruciate Ligament Transection and Synovial Fluid Lavage in a Rodent Model to Study Joint Inflammation and Posttraumatic Osteoarthritis
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Navigation in ACL reconstruction - comparison with conventional measurement tools.

D Kendoff1, R Meller, M Citak

  • 1Trauma Department, Hannover Medical School, Hannover, Germany. kendoff.daniel@mh-hannover.de

Technology and Health Care : Official Journal of the European Society for Engineering and Medicine
|May 3, 2007
PubMed
Summary

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Navigated measurements precisely assess anterior cruciate ligament (ACL) stability, comparing favorably with traditional devices. This technology offers reliable intraoperative assessment of knee stability after ACL reconstruction.

Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering
  • Sports Medicine

Background:

  • Restoring rotational and translational stability is crucial in anterior cruciate ligament (ACL) reconstruction.
  • Clinical methods for intraoperative measurement of anterior-posterior (AP) translation and tibial rotation are not well-established.

Purpose of the Study:

  • To compare navigated measurements of tibial AP translation and rotation with established mechanical devices.
  • To evaluate the precision and clinical applicability of navigation systems for intraoperative instability assessment.

Main Methods:

  • Navigated measurements of tibial AP translation and rotation were compared to the KT 1000 and a modified goniometer.
  • Tests were conducted on knees with both intact and dissected ACLs.
  • Statistical analysis was performed to compare measurements between navigation and mechanical devices.

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Last Updated: Jul 15, 2026

Anterior Cruciate Ligament Transection and Synovial Fluid Lavage in a Rodent Model to Study Joint Inflammation and Posttraumatic Osteoarthritis
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Main Results:

  • No significant difference was found in AP translation between navigation (3.2 mm) and the KT 1000 (4.8 mm) (p>0.05).
  • Tibial rotation showed no significant difference between navigation (0.12 degrees) and the goniometer (p>0.05).
  • Significant differences in rotation were observed between intact (4.2 degrees) and dissected ACLs (7.05 degrees) (p<0.05).

Conclusions:

  • Navigated systems provide precise measurements of ACL stability parameters under laboratory conditions.
  • Results from navigated measurements are comparable to those obtained from traditional mechanical testing devices.
  • Navigation technology shows potential for reliable intraoperative assessment of knee stability during ACL reconstruction.