Comparison of Short-Term Clinical Outcomes of Hook Plate and Continuous Loop Double Endobutton Fixations in Acute Acromioclavicular Joint Dislocation

Abstract

Background: This study was conducted to evaluate the clinical outcomes of the acromioclavicular joint (ACJ)<br />fixation with hook plate (HP) and continuous loop double endobutton fixation (CLDE) in the treatment of acute ACJ<br />dislocation.<br />Methods: This retrospective study was conducted on eight patients with HP and nine patients with CLDE fixations for<br />acute ACJ dislocations. The subjects were evaluated by various criteria, including disabilities of the Arm, Shoulder,<br />and Hand (DASH), American Shoulder and Elbow Surgeons Standardized Shoulder Assessment (ASES), University<br />of California, Los Angeles (UCLA) shoulder rating scale, Shoulder Constant score, Simple Shoulder Test (SST), and<br />coracoclavicular (CC) distance.<br />Results: The differences between the mean scores of the visual analog scale for pain, DASH, ASES, UCLA<br />shoulder rating scale, and Shoulder Constant, and SST were statistically significant in favor of the CLDE group.<br />Mean difference of CC distance was 8.6±0.9 mm in the HP group; however, it was 11.6±1.2 mm in the CLDE group.<br />The operation time was shorter in the HP fixation, compared to that in the CLDE fixation (51±13.3 versus 105±9.7<br />min; PHP group.<br />Conclusion: The CLDE fixation was reported with better clinical outcomes than HP fixation; however, it was a technically<br />demanding procedure. The HP maintained the CC distance better than CLDE with a technically easy application. The<br />HP requires a second surgery for the removal and development of subacromial erosion and osteoarthritis of the ACJ<br />that can be regarded as major concerns.<br />Level of evidence: III