Comparison of the Results of Hook Plate and Endo-Button Used in the Surgical Treatment of Acromioclavicular Joint Separation

Abstract

Purpose: Our study aimed to compare the clinical outcomes between endo-button and hook plate fixations for the treatment of acute unstable acromioclavicular (AC) joint dislocation. Materials: A retrospective evaluation of patients with acute AC joint dislocation who were treated between February 2009 and December 2019 was performed. The study was conducted with 39 patients who met the inclusion criteria. Patients were divided into group 1, operated with a hook plate, and group 2, operated with an endo-button. The demographic features and postoperative complications were analyzed. The disability of arm, shoulder, and hand (DASH) scoring system, modified University of California at Los Angeles shoulder score (UCLA) scale, and the visual analog scale (VAS) scores were used to evaluate shoulder functions in these patients. Shoulder functions were evaluated one, three, six, and twelve months after surgery. Results: There were 21 patients in group 1 and 18 patients in group 2. Gender distribution was 28 male and 11 female, and the average age was 30.9 years (18-50). There were no significant differences in age, sex, side of injury, or follow-up time from injury to surgery between the two groups. The UCLA scores of group 1 and group 2 one month after surgery were 17.2 and 27.2, respectively. DASH scores of group 1 and group 2 one month after surgery were 82 and 52, respectively. The VAS scores of group 1 and group 2 one month after surgery were 70 and 14, respectively. For all scores at first month post-surgery, there were statistically significant differences between groups, but scores became similar 12 months after surgery. Conclusion: Postoperative shoulder scores of patients with endo-button showed superiority in the early stages. However, after a year of follow-up, the results of the surgery performed with an endo-button or a hook plate were similar.

Travmatik Tip III Akromiyoklaviküler Eklem Çıkığı Tedavisinde Kanca Plak ile Tespit İdeal Bir Tedavi Yöntemi Midir?

“…[12] Yapılan bir çalışmada; akromiyoklaviküler eklem çıkıkları için endo buton uygulanan hastaların, kanca plak uygulanan hastalara göre, erken dönem sonuçlarının daha iyi olduğu ancak bir yıllık takip sonunda, sonuçlarının benzer olduğu bildirilmiştir. [13] Rockwood tip III akromiyoklaviküler eklem çıkıklarında, korakoklaviküler ligaman tamiri yapmadan kanca plak uygulanması iyi bir uygulama olarak bildirilmiştir. [14] Çalışmamızda da bu sonucu elde ettik.…”

The correlation between acromial osteolysis and acromion types in the treatment of acromioclavicular joint dislocation with hook plate

“…In the lever mechanism, the plate is pushed down towards the distal clavicle, the distal end of the hook produces a constant upward pressure, providing rigid fixation of the AC joint and promotes healing of the damaged ligaments and joint capsule. [ 1 , 3 , 9 , 10 , 12 , 15 ] While hook plates provide rigid fixation in the AC joint, they may cause SAO due to the pressure created by the hook in the subacromial region. [ 6 , 7 , 13 , 16 ] In anatomical and morphological examinations, the axis of the tip of the hook in the placement traces of the axial plane of the clavicle and acromion forms the posterior of the acromion.…”

“…This coronal plane relationship is significant, especially in different acromial variations. [ 7 , 12 ] Four acromion types are specified in the literature and they are classified as Type I—flat (12%), type II—curved (56%), type III—hooked (29%), and type IV—convex (3%). [ 7 , 11 , 13 , 14 ]…”

“…This coronal plane relationship is significant, especially in different acromial variations. [7,12] Four acromion types are specified in the literature and they are classified as Type I-flat (12%), type II-curved (56%), type III-hooked (29%), and type IV-convex (3%). [7,11,13,14] In our study, hook plates used in ACJ dislocations; We aimed to demonstrate radiologically the correlation between the development of SAO with acromion types.…”

Clinical outcomes of arthroscopic and navigation-assisted two tunnel technique for coracoclavicular ligament augmentation of acute acromioclavicular joint dislocations

“…Compared to other reconstruction methods like hook plates, our results are similar. Values around 90 points are also achieved with this method in the Constant score [ 51 – 53 ]. Hence, osteolysis in the acromion due to the hook of the plate and an increased visual analog scale for pain seem to occur more frequently [ 53 – 56 ].…”