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Surgical and Radiologic Anatomy

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01-09-2012 | Anatomic Bases of Medical, Radiological and Surgical Techniques

Measure of horizontal and vertical displacement of the acromioclavicular joint after cutting ligament using X-ray and opto-electronic system

Authors: Goulven Rochcongar, Sébastien Emily, Benoit Lebel, Vincent Pineau, Gilles Burdin, Christophe Hulet

Published in: Surgical and Radiologic Anatomy | Issue 7/2012

Abstract

Introduction

Surgical versus orthopedic treatments of acromioclavicular disjunction are still debated. The aim of this study was to measure horizontal and vertical acromion’s displacement after cutting the ligament using standard X-ray and an opto-electronic system on cadaver.

Materials and methods

Ten cadaveric shoulders were studied. A sequential ligament’s section was operated by arthroscopy. The sequence of cutting was chosen to fit with Rockwood’s grade. The displacement of the acromion was measured on standard X-ray and with an opto-electronic system allowing measuring of the horizontal displacement. Statistical comparisons were performed using a paired Student’s t test with significance set at p < 0.05.

Results

Cutting the coracoclavicular ligament and delto-trapezius muscles cause a statistical downer displacement of the acromion, but not after sectioning the acromioclavicular ligament. The contact surface between the acromion and the clavicle decreases statistically after sectioning the acromioclavicular ligament and the coracoclavicular ligament with no effect of sectioning the delto-trapezius muscles. Those results are superposing with those dealing with the anterior translation.

Discussion

The measure concerning the acromioclavicular distance and the coracoclavicular distance are superposing with those of Rockwood. However, there is a significant horizontal translation after cutting the acromioclavicular ligament. Taking into account this displacement, it may be interesting to choose either surgical or orthopedic treatment.

Conclusion

There is a correlation between anatomical damage and importance of instability. Horizontal instability is misevaluated in clinical practice.

Level of evidence

Basic science study.

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Title: Measure of horizontal and vertical displacement of the acromioclavicular joint after cutting ligament using X-ray and opto-electronic system
Authors: Goulven Rochcongar
Sébastien Emily
Benoit Lebel
Vincent Pineau
Gilles Burdin
Christophe Hulet
Publication date: 01-09-2012
Publisher: Springer-Verlag
Published in: Surgical and Radiologic Anatomy / Issue 7/2012
Print ISSN: 0930-1038
Electronic ISSN: 1279-8517
DOI: https://doi.org/10.1007/s00276-012-0953-8

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Measure of horizontal and vertical displacement of the acromioclavicular joint after cutting ligament using X-ray and opto-electronic system

Abstract

Introduction

Materials and methods

Results

Discussion

Conclusion

Level of evidence

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Abstract

Introduction

Materials and methods

Results

Discussion

Conclusion

Level of evidence

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