The figure-of-nine leg position for anatomic anterior cruciate ligament reconstruction

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Anatomic double-bundle anterior cruciate ligament (ACL) reconstruction can restore the function and kinematics of the knee in ACL-deficient patients. Several outside-in drilling systems for accurate femoral tunnel creations have been developed. However, the femoral tunnel creation at the lower position of the intercondylar notch can be difficult in a usual leg position with the knee flexed at 90° without varus stress. This technical note describes that the figure-of-nine leg position provides a better arthroscopic view to safely clean up the ACL femoral footprint located at the lower area of the lateral intercondylar wall. This position is useful to create the optimal femoral tunnels using the outside-in drilling technique, without damaging the lateral meniscus posterior root, lateral tibial eminence, and supplemental fibers that bridge the gap between the lateral meniscus and the ACL tibial insertion.

Original languageEnglish
Pages (from-to)391-393
Number of pages3
JournalOrthopaedics and Traumatology: Surgery and Research
Volume101
Issue number3
DOIs
Publication statusPublished - May 1 2015

Fingerprint

Anterior Cruciate Ligament Reconstruction
Thigh
Anterior Cruciate Ligament
Leg
Tibial Meniscus
Knee
Biomechanical Phenomena

Keywords

  • Anterior cruciate ligament reconstruction
  • Double-bundle reconstruction
  • Femoral tunnel
  • Figure-of-nine position

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Surgery
  • Medicine(all)

Cite this

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title = "The figure-of-nine leg position for anatomic anterior cruciate ligament reconstruction",
abstract = "Anatomic double-bundle anterior cruciate ligament (ACL) reconstruction can restore the function and kinematics of the knee in ACL-deficient patients. Several outside-in drilling systems for accurate femoral tunnel creations have been developed. However, the femoral tunnel creation at the lower position of the intercondylar notch can be difficult in a usual leg position with the knee flexed at 90° without varus stress. This technical note describes that the figure-of-nine leg position provides a better arthroscopic view to safely clean up the ACL femoral footprint located at the lower area of the lateral intercondylar wall. This position is useful to create the optimal femoral tunnels using the outside-in drilling technique, without damaging the lateral meniscus posterior root, lateral tibial eminence, and supplemental fibers that bridge the gap between the lateral meniscus and the ACL tibial insertion.",
keywords = "Anterior cruciate ligament reconstruction, Double-bundle reconstruction, Femoral tunnel, Figure-of-nine position",
author = "Takayuki Furumatsu and M. Fujii and T. Tanaka and Shinichi Miyazawa and Toshihumi Ozaki",
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T1 - The figure-of-nine leg position for anatomic anterior cruciate ligament reconstruction

AU - Furumatsu, Takayuki

AU - Fujii, M.

AU - Tanaka, T.

AU - Miyazawa, Shinichi

AU - Ozaki, Toshihumi

PY - 2015/5/1

Y1 - 2015/5/1

N2 - Anatomic double-bundle anterior cruciate ligament (ACL) reconstruction can restore the function and kinematics of the knee in ACL-deficient patients. Several outside-in drilling systems for accurate femoral tunnel creations have been developed. However, the femoral tunnel creation at the lower position of the intercondylar notch can be difficult in a usual leg position with the knee flexed at 90° without varus stress. This technical note describes that the figure-of-nine leg position provides a better arthroscopic view to safely clean up the ACL femoral footprint located at the lower area of the lateral intercondylar wall. This position is useful to create the optimal femoral tunnels using the outside-in drilling technique, without damaging the lateral meniscus posterior root, lateral tibial eminence, and supplemental fibers that bridge the gap between the lateral meniscus and the ACL tibial insertion.

AB - Anatomic double-bundle anterior cruciate ligament (ACL) reconstruction can restore the function and kinematics of the knee in ACL-deficient patients. Several outside-in drilling systems for accurate femoral tunnel creations have been developed. However, the femoral tunnel creation at the lower position of the intercondylar notch can be difficult in a usual leg position with the knee flexed at 90° without varus stress. This technical note describes that the figure-of-nine leg position provides a better arthroscopic view to safely clean up the ACL femoral footprint located at the lower area of the lateral intercondylar wall. This position is useful to create the optimal femoral tunnels using the outside-in drilling technique, without damaging the lateral meniscus posterior root, lateral tibial eminence, and supplemental fibers that bridge the gap between the lateral meniscus and the ACL tibial insertion.

KW - Anterior cruciate ligament reconstruction

KW - Double-bundle reconstruction

KW - Femoral tunnel

KW - Figure-of-nine position

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