BACKGROUND:Repair methods for acromioclavicular joint dislocation are various. Different fixation or reconstitution obtains different outcomes. Moreover, various postoperative complications exist, and impact shoulder function. With the development of concept of minimal invasion and rapid generalization of arthroscopy, arthroscopy began to be used in the minimal y invasive treatment of acromioclavicular dislocation, and its effectiveness and safety have been verified. n OBJECTIVE:To explore the clinical efficacy of double titanium plate TightRope fixation and anatomic reconstruction of beak lock ligament under arthroscopy in the treatment of acromioclavicular joint dislocation. n METHODS:12 patients with type III-VI acromioclavicular joint dislocation were treated with double titanium plate TightRope fixation and anatomic reconstruction of beak lock ligament. After fixation, they were rechecked with X-ray at 1, 6 and 12 weeks. Pain condition was evaluated using Visual Analog Scale. Shoulder joint function was assessed using University of California, Los Angeles (UCLA) grading evaluation after surgery. n RESULTS AND CONCLUSION:12 cases had been fol owed up for 4.5-15 months. X-ray examination confirmed that the acromioclavicular joint dislocation was completely reset, and dislocation did not appear again. Significant differences in Visual Analog Scale scores were detected at 1, 6, and 12 weeks after fixation compared with pre-fixation (P<0.05). Significant differences in Visual Analog Scale scores were detectable between 6 and 12 weeks and 1 week after fixation (P<0.05). Significant differences in UCLA scores were found at 1, 6 and 12 weeks after fixation compared with pre-fixation (P<0.05). Significant differences in UCLA scores were seen at 6 weeks after fixation compared with 1 week (P<0.05). These results indicated that TightRope fixation and anatomic reconstruction of beak lock ligament under arthroscopy for acromioclavicular joint dislocation is stable, obtains smal trauma, and can be easily accepted by patients. Moreover, patients can receive early joint functional exercise so as to restore joint function better, which do not damage the joint surface, without shoulder peak impact or secondary surgery. Curative effect is satisfied.%背景：肩锁关节脱位修复方式多样，固定或重建方式不同，疗效不一，存在各种术后并发症，影响患肩功能。随着微创理念的日益发展以及关节镜技术的快速推广，关节镜技术开始应用于肩锁关节脱位的微创治疗中，其有效性以及安全性得到验证。n 目的：探讨关节镜下肩锁关节用锁扣带袢双钛板TightRope置入内固定解剖重建喙锁韧带修复肩锁关节脱位的效果。n 方法：采用肩锁关节用锁扣带袢双钛板TightRope置入内固定解剖重建喙锁韧带修复12例Ⅲ-Ⅵ型肩锁关节脱位患者，内固定后第1，6，12周复查 X射线片，采用目测类比评分评估疼痛情况，采用美国加州大学洛杉矶分校肩关节评分系统评价内固定后肩关节功能。n 结果与结论：12例均获随访，随访时间4.5-15个月。X射线检查证实肩锁关节脱位均完全复位，且未出现再次脱位。目测类比评分内固定后第1，6，12周与内固定前比较，差异有显著性意义(P<0.05)，内固定后第6，12周与第1周比较差异有显著性意义(P <0.05)。UCLA评分内固定后第1，6，12周与内固定前比较差异有显著性意义(P <0.05)，内固定后第6周与第1周比较差异有显著性意义(P <0.05)。提示关节镜辅助下TightRope 置入内固定解剖重建喙锁韧带修复肩锁关节脱位固定稳定，创伤小，患者易于接受，可早期关节功能锻炼，更好地恢复关节功能，不损伤关节面，无肩峰撞击弊端，无需二次手术，修复效果满意。
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