The literature is replete with surgical techniques to address acromioclavicular dislocations, including ligament reconstruction or transfer, augmentation with absorbable/non-absorbable sutures or tendon grafts as well as with rigid materials like plates or CC screws. Since arthroscopic surgery has highly advanced in recent years, several minimally invasive techniques with suture anchors or suture buttons have been invented. Furthermore, combinations of these techniques are also described in the literature.
However, despite modern minimally invasive and arthroscopically assisted treatment options for anatomic reconstruction of the coracoclavicular ligaments, there is still no well-defined gold standard treatment for acromioclavicular joint separations.
Since 1972, when Weaver and Dunn published their popular technique, several biomechanical studies have reported on the latest fashion of AC joint augmentation providing an increasing stability of the reconstructed complex and finally equal or even more stability than native ligaments.
Therefore, it seems that future belongs to recently described, minimal invasive techniques, using anchors or buttons with or without tendon grafts, even though long-term results that might point out unknown complications are still missing. To date, open techniques like reconstructions with absorbable or non-absorbable suture cerclages are still in use for acute AC joint separations and show reliable and good to excellent clinical results, even though slight re-dislocations are reported.
The purpose of the current study was to evaluate the vertical stability of our AC joint reconstruction technique for acute AC joint injuries, using coracoclavicular PDS cerclages and an additional acromioclavicular PDS cerclage augmentation. We hypothesized that this technique provided sufficient vertical stability to prevent a vertical re-dislocation during the healing process.
Full Article: Acromioclavicular and coracoclavicular PDS augmentation for complete AC joint dislocation showed insufficient properties in a cadaver model