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Evaluation of the coracoclavicular reconstruction using LARS artificial ligament in acute acromioclavicular joint dislocation

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Knee Surgery, Sports Traumatology, Arthroscopy Aims and scope

Abstract

Purpose

The most appropriate procedure for surgical treatment of severe acromioclavicular (AC) joint dislocation was still not clear. The purpose of this study is to evaluate the outcomes of coracoclavicular (CC) reconstruction with ligament augmentation and reconstruction system (LARS) artificial ligaments for the treatment of acute complete AC joint dislocation.

Methods

Twenty-four patients (16 male and 8 female, ages ranged from 21 to 45) with acute complete AC joint dislocations were treated with CC reconstruction using LARS artificial ligaments. All these dislocations were unstable injuries. Clinical evaluation was used by the Constant scores and VAS. The radiographic evaluation consisted of Zanca radiographs for bilateral AC joint and axillary radiographs for the injured shoulder.

Results

All patients had follow-up times of 36 months (range 6–60). The Constant scores rose from 62.3 ± 6.9 preoperatively to 94.5 ± 9.3 at final evaluation (P < 0.05). Preoperative VAS scores were 5.1 ± 1.7, and the VAS scores at the last review were 0.7 ± 1.4 (P < 0.05). Follow-up radiographs showed anatomical reduction in 20 patients and slight loss of reduction in 4 patients. Calcification of CC ligament in 4 patients, degenerative change around the AC joint in 2 patient and clavicular osteolysis around screws in one patient were found.

Conclusions

LARS artificial ligament for reconstruction of CC can provide immediate stability and allow early shoulder mobilization with good functional results and few complications. This procedure was an effective and safe method to treat grade III and more AC joint dislocations.

Level of evidence

IV.

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Acknowledgments

We would like to thank Xianren Wu, MD, Geisinger Medical Center, Danville, PA 17822, USA, for his extensive editing. We also thank Amruta Ashtekar, BS, Laboratory for Regenerative Technologies in Orthopedic Surgery, Northwestern University, Chicago, IL 60611, USA, for her English language editing.

Conflict of interest

No potential conflict of interest declared.

Ethical standard

All patients gave informed consent, and the Ethical Committee of the Second Military Medical University approved this study.

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Corresponding author

Correspondence to Aimin Chen.

Additional information

N. Lu, L. Zhu and T. Ye have contributed equally to this work.

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Lu, N., Zhu, L., Ye, T. et al. Evaluation of the coracoclavicular reconstruction using LARS artificial ligament in acute acromioclavicular joint dislocation. Knee Surg Sports Traumatol Arthrosc 22, 2223–2227 (2014). https://doi.org/10.1007/s00167-013-2582-0

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  • DOI: https://doi.org/10.1007/s00167-013-2582-0

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