A Comparative Study Of Short-term Outcomes Of Tossy Grade Iii Acromioclavicular Dislocation Between Double Endobutton Technique And Clavicular Hook Plate

Objective: Clavicular hook plate(CHP) was the mainstay of therapyfor patients with acromioclavicular dislocation in the past. Considering thatthe acromioclavicular joint is relatively small, Double Endobuttontechnique can reconstruct coracoclavicular ligament and meet the morestringent requirements on stability and slightly flexing of theacromioclavicular joint. This study is to compare short-term outcomes ofdouble Endobutton technique versus clavicular hook plate(CHP) in thetreatment of Tossy grade III acromioclavicular dislocation.Methods: A cohort of82patients with Tossy grade IIIacromioclavicular dislocation were treated between January2010andAugust2012in our hospital.36patients were treated with doubleEndobutton technique and46with CHP. They were compared in terms ofoperation situation, postoperative visual analogue scale(VAS) scores,abduction-rise, flexion-rise, Constant scores for functional recovery of theinjured shoulder. Results: There was no statistical difference between the two groupsin the blood loss during operation, the mean operative time (P＞0.05). Themean return to work time of the Endobutton group(13.1±1.4weeks) wasshorter than that of CHP group(15.5±2.6weeks)(P <0.05). At12monthspost-surgery, the average VAS score was (2.1±0.7) points for theEndotutton group and (2.9±0.8) points for the CHP group, theabduction-rise and flexion-rise averaged [(138.6±15.7)o,(140.3±17.6)o] forthe Endotutton group and [(91.7±8.4)o,(96.7±10.5)o] for the CHP group.There were significant differences between the two groups in the aboveindexes (P <0.01).Conclusions: In treating grade III acromioclavicular dislocation,double Endobutton technique can shorter recovery time, achieve a greaterrange of motion and decrease shoulder pain at the post-surgery stagecompared with CHP.