Abstract：
METHODS: A patient presented with complete coracoclavicular ligament ossification after an unnoticed acromioclavicular joint Rockwood Type IV dislocation. He had full passive range of motion in the glenohumeral joint but was disabled by a loss of both active (80°) and passive (90°) abduction due to insufficient passive scapulo-thoracic motion. He was treated with an arthroscopic osteotomy of the coracoclavicular ligament ossification.
CONCLUSIONS: One year after the surgery, active abduction was improved by 45° (80°-125°) with no recurrence of the ossification on the radiographs. Arthroscopic osteotomy of complete coracoclavicular ligament ossification seems effective in restoring abduction in these patients.
METHODS: IV.
CONCLUSIONS: One year after the surgery, active abduction was improved by 45° (80°-125°) with no recurrence of the ossification on the radiographs. Arthroscopic osteotomy of complete coracoclavicular ligament ossification seems effective in restoring abduction in these patients.
METHODS: IV.
摘要：
方法：一名患者在未被注意的肩锁关节RockwoodIV型脱位后表现为完全锁骨韧带骨化。他在盂肱关节中具有完整的被动运动范围，但由于被动肩胸廓运动不足而失去了主动（80°）和被动（90°）外展功能。他接受了喙锁韧带骨化的关节镜截骨术。
结论：手术后一年，活动外展改善了45°（80°-125°），在X射线照片上没有骨化的复发。关节镜截骨术完全喙锁韧带骨化似乎可有效恢复这些患者的外展。
方法：IV.
结论：手术后一年，活动外展改善了45°（80°-125°），在X射线照片上没有骨化的复发。关节镜截骨术完全喙锁韧带骨化似乎可有效恢复这些患者的外展。
方法：IV.
