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Knee Surgery, Sports Traumatology, Arthroscopy

Published in:

01-04-2017 | Knee

Reconstructing the anterolateral ligament does not decrease rotational knee laxity in ACL-reconstructed knees

Authors: Kasper Stentz-Olesen, Emil Toft Nielsen, Sepp de Raedt, Peter Bo Jørgensen, Ole Gade Sørensen, Bart Kaptein, Kjeld Søballe, Maiken Stilling

Published in: Knee Surgery, Sports Traumatology, Arthroscopy | Issue 4/2017

Abstract

Purpose

Little is known about the anterolateral ligament’s (ALL) influence on knee laxity. The purpose of this study was to investigate rotational knee laxity against a pure axial rotational stress using radiostereometric analysis (RSA) after cutting and reconstructing both the anterior cruciate ligament (ACL) and the ALL.

Methods

Eight human donor legs were positioned and stereoradiographically recorded at 0°, 30° and 60° of knee flexion using a motorised fixture, while an internally rotating force of 4 Nm was applied to the foot. Anterior–posterior and rotational laxity were investigated for knees with intact ligaments and compared with those observed after successive ACL and ALL resection and reconstruction.

Results

After cutting the ALL in ACL-deficient knees, the internal rotation was increased in all three knee flexion angles, 0° (p = 0.04), 30° (p = 0.03) and 60° (p < 0.01) by 1.0°, 1.6° and 2.5°, respectively. However, no decrease in laxity was found after reconstructing the ALL in ACL-reconstructed knees.

Conclusions

The ALL was confirmed as a stabiliser of internal rotation in ACL-deficient knees. However, reconstructing the ALL using a gracilis autograft tendon did not decrease the internal rotation laxity in the ACL-reconstructed knee. Based on the results of this study, we do not recommend reconstructing the ALL in ACL-reconstructed knees to decrease internal knee laxity.

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Title: Reconstructing the anterolateral ligament does not decrease rotational knee laxity in ACL-reconstructed knees
Authors: Kasper Stentz-Olesen
Emil Toft Nielsen
Sepp de Raedt
Peter Bo Jørgensen
Ole Gade Sørensen
Bart Kaptein
Kjeld Søballe
Maiken Stilling
Publication date: 01-04-2017
Publisher: Springer Berlin Heidelberg
Published in: Knee Surgery, Sports Traumatology, Arthroscopy / Issue 4/2017
Print ISSN: 0942-2056
Electronic ISSN: 1433-7347
DOI: https://doi.org/10.1007/s00167-017-4500-3

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Reconstructing the anterolateral ligament does not decrease rotational knee laxity in ACL-reconstructed knees

Abstract

Purpose

Methods

Results

Conclusions

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusions

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