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Journal of Orthopaedics and Traumatology
Published in: Journal of Orthopaedics and Traumatology 4/2013

Open Access 01-12-2013 | Original Article

Surgical treatment of chronic acromioclavicular dislocation with biologic graft vs synthetic ligament: a prospective randomized comparative study

Authors: Francesco Fauci, Giovanni Merolla, Paolo Paladini, Fabrizio Campi, Giuseppe Porcellini

Published in: Journal of Orthopaedics and Traumatology | Issue 4/2013

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Abstract

Background

Acromioclavicular (AC) dislocation involves complete loss of articular contact; it is defined as chronic when it follows conservative management or unsuccessful surgical treatment.

Materials and methods

The study compared the clinical and radiographic outcomes of AC joint stabilization performed in 40 patients with chronic dislocation using a biological allograft (group A) or a synthetic ligament (group B). Demographic data included: M/F: 25/15; mean age: 35 ± 3.2 years; previous surgery in 11 patients, including Weaver–Dunn (3), coracoacromial ligament repair (4), stabilization with K-wires (4). Dislocation was type III in 14 (35 %) and type IV in 26 (65 %) patients. Clinical assessment was with the Constant–Murley score (pre- and postoperative) and with the modified UCLA score. Enrollment started in January 2004 and was completed in March 2008. Patients were evaluated at 1 and 4 years. Postoperative X-rays were examined to assess joint stability in the coronal and axial planes, coracoclavicular ossification, and signs of AC joint osteoarthritis and distal clavicular osteolysis.

Results

The “biological” group achieved significantly better clinical scores than the “synthetic” group at both 1 and 4 years. Poor subjective satisfaction and lower clinical scores were found in the 3 patients (1 from group A and 2 from group B) who experienced complete postoperative dislocation. No significant correlations were found with other radiographic parameters.

Conclusions

The biological graft afforded better clinical and radiographic outcomes than the synthetic ligament in patients with chronic AC joint instability. Fixation to the clavicle constitutes the main weakness of both approaches and needs improving.

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Metadata
Title
Surgical treatment of chronic acromioclavicular dislocation with biologic graft vs synthetic ligament: a prospective randomized comparative study
Authors
Francesco Fauci
Giovanni Merolla
Paolo Paladini
Fabrizio Campi
Giuseppe Porcellini
Publication date
01-12-2013
Publisher
Springer International Publishing
Published in
Journal of Orthopaedics and Traumatology / Issue 4/2013
Print ISSN: 1590-9921
Electronic ISSN: 1590-9999
DOI
https://doi.org/10.1007/s10195-013-0242-2

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