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Erschienen in: Clinical Orthopaedics and Related Research® 9/2013

01.09.2013 | Symposium: Tscherne Festschrift

Can Joint Contact Dynamics Be Restored by Anterior Cruciate Ligament Reconstruction?

verfasst von: Yuichi Hoshino, MD, PhD, Freddie H. Fu, MD, DSc, James J. Irrgang, PT, PhD, ATC, FAPTA, Scott Tashman, PhD

Erschienen in: Clinical Orthopaedics and Related Research® | Ausgabe 9/2013

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Abstract

Background

Rotational kinematics has become an important consideration after ACL reconstruction because of its possible influence on knee degeneration. However, it remains unknown whether ACL reconstruction can restore both rotational kinematics and normal joint contact patterns, especially during functional activities.

Questions/purposes

We asked whether knee kinematics (tibial anterior translation and axial rotation) and joint contact mechanics (tibiofemoral sliding distance) would be restored by double-bundle (DB) or single-bundle (SB) reconstruction.

Methods

We retrospectively studied 17 patients who underwent ACL reconstruction by the SB (n = 7) or DB (n = 10) procedure. We used dynamic stereo x-ray to capture biplane radiographic images of the knee during downhill treadmill running. Tibial anterior translation, axial rotation, and joint sliding distance in the medial and lateral compartments were compared between reconstructed and contralateral knees in both SB and DB groups.

Results

We observed reduced anterior tibial translation and increased knee rotation in the reconstructed knees compared to the contralateral knees in both SB and DB groups. The mean joint sliding distance on the medial compartment was larger in the reconstructed knees than in the contralateral knees for both the SB group (9.5 ± 3.9 mm versus 7.5 ± 4.3 mm) and the DB group (11.1 ± 1.3 mm versus 7.9 ± 3.8 mm).

Conclusions

Neither ACL reconstruction procedure restored normal knee kinematics or medial joint sliding.

Clinical Relevance

Further study is necessary to understand the clinical significance of abnormal joint contact, identify the responsible mechanisms, and optimize reconstruction procedures for restoring normal joint mechanics after ACL injury.
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Metadaten
Titel
Can Joint Contact Dynamics Be Restored by Anterior Cruciate Ligament Reconstruction?
verfasst von
Yuichi Hoshino, MD, PhD
Freddie H. Fu, MD, DSc
James J. Irrgang, PT, PhD, ATC, FAPTA
Scott Tashman, PhD
Publikationsdatum
01.09.2013
Verlag
Springer US
Erschienen in
Clinical Orthopaedics and Related Research® / Ausgabe 9/2013
Print ISSN: 0009-921X
Elektronische ISSN: 1528-1132
DOI
https://doi.org/10.1007/s11999-012-2761-1

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