Purpose/Aim: Options for surgery for acromioclavicular (AC) joint dislocation vary considerably. This study aimed to examine the functional and radiological results of patients who were operated on using the tightrope (TR) or clavicular hook plate (CHP) technique in the treatment for AC joint dislocation. Materials and methods: The data gathered from 35 consecutive patients who were operated on for AC joint dislocation were analyzed retrospectively in terms of their radiological and functional outcomes. Results: Thirty-two (91.4%) of the 35 patients were male and 3 (8.6%) were female. Thirty (85.7%) patients were classified as Rockwood type 3 and 5 (14.3%) as type 5. Twenty-one patients operated on using the TR technique were categorized as group 1, and 14 patients treated with the CHP technique formed group 2. Functional results were evaluated using the Constant-Murley shoulder scoring system; no statistically significant difference was observed between type 3 and 5 AC separation (p = 0.337). The mean Constant scores of type 3 and 5 injuries were 82.96 and 88.6, respectively. A significant relationship was noted between reduction quality and functional scores (p = 0.006). Postoperative osteoarthritis was seen in 12 (57.14%) patients in group 1 and 7 (50.00%) patients in group 2. In terms of surgery duration, 50.57 minutes in group 1 and 35.71 minutes in group 2 were noted. A statistically significant difference was found between the two groups in terms of surgery duration (p <  0.05). Conclusions: TR and CHP techniques, which do not differ significantly in terms of their clinical results, can be used safely in the treatment of AC separation.

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