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Clin Shoulder Elbow > Volume 20(3); 2017 > Article
Clinics in Shoulder and Elbow 2017;20(3):153-161.
DOI: https://doi.org/10.5397/cise.2017.20.3.153    Published online September 30, 2017.
Clinical and Radiological Outcomes of Acute Acromioclavicular Joint Dislocation: Comparison of Hook Plate Fixation with Single Tight Rope Technique
Sung Hyun Lee, Jeong Woo Kim, Seng Hwan Kook
Institute of Wonkwang Medical Science and Department of Orthopedic Surgery, Wonkwang University Hospital, Iksan, Korea. serina@wonkwang.ac.kr
Received: 6 July 2017   • Revised: 4 August 2017   • Accepted: 13 August 2017
Abstract
BACKGROUND: This study was conducted to compare the clinical and radiological outcomes of the locking hook plate fixation (HP) technique and the single tight rope (TR) technique applied for acute high-grade acromioclavicular (AC) joint separations.
METHODS
Between 2009 and 2014, 135 consecutive patients with acute AC joint separation Rockwood types III, IV, and V were subjected to surgical reconstruction. One hundred fourteen patients (84.4%) were available for retrospective evaluation. Of them, 62 and 52 were treated using the single TR group and clavicular HP group techniques, respectively. The visual analogue scale, Constant, American Shoulder and Elbow Surgeons (ASES), and Taft scores were used for clinical assessment. Postoperative shoulder range of motion was also assessed. An anteroposterior radiograph of the coracoclavicular distance (CCD) was obtained to evaluate the radiographic signs of recurrence.
RESULTS
The TR group patients had better Constant, ASES, and Taft scores than the HP group patients. The loss of reduction in terms of the CCD did not differ between groups. Subacromial osteolysis was observed in 34.6% of the cases in the HP group. However, there were no significant differences in the clinical outcomes between the patients with and without osteolysis in the HP group. Subcoracoid osteolysis, drill tunnel widening, and metal displacement were observed in 3.2%, 22.6%, and 4.8% of the cases in the TR group, respectively.
CONCLUSIONS
The single TR technique was relatively more effective at treating acute high-grade AC joint injuries than the HP fixation technique (level of evidence: therapeutic; retrospective comparative study, Level III).
Key Words: Acromioclavicular joint; Acute separation; Arthroscopic stabilization; Tight rope technique; Clavicular hook plate


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