Feasibility of Osseous Landmarks for ACL Reconstruction—A Macroscopic Anatomical Study

During knee arthroscopy, easy orientation is important, and possible landmarks include the lateral intercondylar ridge (LIR) and the lateral bifurcate ridge (LBR). The objective was to show the feasibility of the LIR and the LBR as landmarks of the femoral attachment of the anterior cruciate ligamen...

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Main Authors: Lena Hirtler, Dominik Rieschl, Sam A. Kandathil, Patrick Weninger
Format: Article
Language:English
Published: MDPI AG 2023-06-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/13/12/7345
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author Lena Hirtler
Dominik Rieschl
Sam A. Kandathil
Patrick Weninger
author_facet Lena Hirtler
Dominik Rieschl
Sam A. Kandathil
Patrick Weninger
author_sort Lena Hirtler
collection DOAJ
description During knee arthroscopy, easy orientation is important, and possible landmarks include the lateral intercondylar ridge (LIR) and the lateral bifurcate ridge (LBR). The objective was to show the feasibility of the LIR and the LBR as landmarks of the femoral attachment of the anterior cruciate ligament (ACL) among subjects with different levels of training. Thirty-six formalin-phenol-fixed lower extremities were acquired for this prospective macroscopic anatomical study. All soft tissue apart from the ligaments was removed. The two bundles of the ACL and their origins were identified, marked and photographed. Photographs were taken in an arthroscopic setting. An orthopedic surgeon, an anatomist and a medical student identified the ridges. The LIR existed in 80.6% of samples, while the LBR existed in 13.8% of samples. A significant difference existed between the raters in correctly identifying the LIR (<i>p</i> < 0.01). Due to its high frequency, the LIR seems more reliable than the LBR, especially as the LBR has the potential for false positive identification. Nevertheless, as these ridges are not easily discernible, the surgeon has to know the anatomy of the intercondylar notch perfectly to stand even a small chance of correctly placing drill holes in ACL reconstruction. New guidelines for more easily recognizing LIR and LBR arthroscopically are proposed.
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spelling doaj.art-73c70fb3cce4440e883c97dec470f9cd2023-11-18T09:12:33ZengMDPI AGApplied Sciences2076-34172023-06-011312734510.3390/app13127345Feasibility of Osseous Landmarks for ACL Reconstruction—A Macroscopic Anatomical StudyLena Hirtler0Dominik Rieschl1Sam A. Kandathil2Patrick Weninger3Division of Anatomy, Center for Anatomy and Cell Biology, Medical University of Vienna, 1090 Vienna, AustriaAlfried Krupp Hospital Essen, 45131 Essen, GermanyDivision of Anatomy, Center for Anatomy and Cell Biology, Medical University of Vienna, 1090 Vienna, AustriaKnie & Sport, 1010 Vienna, AustriaDuring knee arthroscopy, easy orientation is important, and possible landmarks include the lateral intercondylar ridge (LIR) and the lateral bifurcate ridge (LBR). The objective was to show the feasibility of the LIR and the LBR as landmarks of the femoral attachment of the anterior cruciate ligament (ACL) among subjects with different levels of training. Thirty-six formalin-phenol-fixed lower extremities were acquired for this prospective macroscopic anatomical study. All soft tissue apart from the ligaments was removed. The two bundles of the ACL and their origins were identified, marked and photographed. Photographs were taken in an arthroscopic setting. An orthopedic surgeon, an anatomist and a medical student identified the ridges. The LIR existed in 80.6% of samples, while the LBR existed in 13.8% of samples. A significant difference existed between the raters in correctly identifying the LIR (<i>p</i> < 0.01). Due to its high frequency, the LIR seems more reliable than the LBR, especially as the LBR has the potential for false positive identification. Nevertheless, as these ridges are not easily discernible, the surgeon has to know the anatomy of the intercondylar notch perfectly to stand even a small chance of correctly placing drill holes in ACL reconstruction. New guidelines for more easily recognizing LIR and LBR arthroscopically are proposed.https://www.mdpi.com/2076-3417/13/12/7345anterior cruciate ligamentACLlateral intercondylar ridgelateral bifurcate ridgeosseous landmark
spellingShingle Lena Hirtler
Dominik Rieschl
Sam A. Kandathil
Patrick Weninger
Feasibility of Osseous Landmarks for ACL Reconstruction—A Macroscopic Anatomical Study
Applied Sciences
anterior cruciate ligament
ACL
lateral intercondylar ridge
lateral bifurcate ridge
osseous landmark
title Feasibility of Osseous Landmarks for ACL Reconstruction—A Macroscopic Anatomical Study
title_full Feasibility of Osseous Landmarks for ACL Reconstruction—A Macroscopic Anatomical Study
title_fullStr Feasibility of Osseous Landmarks for ACL Reconstruction—A Macroscopic Anatomical Study
title_full_unstemmed Feasibility of Osseous Landmarks for ACL Reconstruction—A Macroscopic Anatomical Study
title_short Feasibility of Osseous Landmarks for ACL Reconstruction—A Macroscopic Anatomical Study
title_sort feasibility of osseous landmarks for acl reconstruction a macroscopic anatomical study
topic anterior cruciate ligament
ACL
lateral intercondylar ridge
lateral bifurcate ridge
osseous landmark
url https://www.mdpi.com/2076-3417/13/12/7345
work_keys_str_mv AT lenahirtler feasibilityofosseouslandmarksforaclreconstructionamacroscopicanatomicalstudy
AT dominikrieschl feasibilityofosseouslandmarksforaclreconstructionamacroscopicanatomicalstudy
AT samakandathil feasibilityofosseouslandmarksforaclreconstructionamacroscopicanatomicalstudy
AT patrickweninger feasibilityofosseouslandmarksforaclreconstructionamacroscopicanatomicalstudy