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Published in: Knee Surgery, Sports Traumatology, Arthroscopy 8/2015

01-08-2015 | Knee

Variability of tunnel positioning in fluoroscopic-assisted ACL reconstruction

Authors: Shafizadeh Sven, Balke Maurice, Juergen Hoeher, Banerjee Marc

Published in: Knee Surgery, Sports Traumatology, Arthroscopy | Issue 8/2015

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Abstract

Purpose

Intraoperative fluoroscopy has been proposed as a feasible method to improve the accuracy of anatomical tunnel positioning. However, it has so far not been determined, whether this technique reduces the variability of tunnel positioning in a clinical set-up. Therefore, the purpose of this study was to determine the variability of tunnel positions applying intraoperative fluoroscopy.

Methods

Femoral and tibial tunnel positions of 112 fluoroscopic ACL reconstruction cases were determined according to validated radiological measurement methods. Mean positions, standard deviations and ranges were calculated to determine the variability of the tunnel positions. Subgroup variability analysis was performed to analyse cases in which tunnel positions were corrected.

Results

Applying intraoperative fluoroscopy, the variability of tunnel positions was found to be 3 % at the femur (range 15.4 %) and 2.3 % at the tibia (9.7 %). In 34 cases (30.0 %), non-satisfactory tunnel positions were identified and could be corrected achieving more accurate positions regarding to radiological parameters (14× femur, 16× tibia, 4× femur and tibia).

Conclusions

The results of the presented study indicate that intraoperative fluoroscopy allows to identify non-accurate tunnel positions regarding to radiological criteria. The determined low variability indicates that fluoroscopic-based ACL reconstruction can be recommended as a feasible, easy and effective adjunct that enables surgeons to create more consistent and reliable tunnel positions in ACL reconstruction.

Level of evidence

IV.
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Metadata
Title
Variability of tunnel positioning in fluoroscopic-assisted ACL reconstruction
Authors
Shafizadeh Sven
Balke Maurice
Juergen Hoeher
Banerjee Marc
Publication date
01-08-2015
Publisher
Springer Berlin Heidelberg
Published in
Knee Surgery, Sports Traumatology, Arthroscopy / Issue 8/2015
Print ISSN: 0942-2056
Electronic ISSN: 1433-7347
DOI
https://doi.org/10.1007/s00167-014-3029-y

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