喙肩韧带切除及肩峰成形术对肱骨头 superior 和前 superior 方向稳定性的影响。 （备注：这里的“superior”和“anterosuperior”在医学语境中可能有更准确的专业术语表述，但仅根据原文直接翻译如此，可根据具体医学知识进一步完善）
The effect of coracoacromial ligament excision and acromioplasty on superior and anterosuperior glenohumeral stability.
作者信息
Su Wei-Ren, Budoff Jeffrey E, Luo Zong-Ping
机构信息
National Cheng Kung University Hospital, Tainan, Taiwan.
出版信息
Arthroscopy. 2009 Jan;25(1):13-8. doi: 10.1016/j.arthro.2008.10.004.
PURPOSE
To determine the effect of coracoacromial ligament (CAL) resection and subacromial decompression (SAD)/acromioplasty on humeral head translation under anterosuperior and superior loading in a cadaveric model with an intact rotator cuff.
METHODS
Six cadaveric shoulders were tested in the intact state, following CAL resection and following SAD.
RESULTS
Excision of the CAL led to a significant increase in anterosuperior humeral translation of 2.1 mm (17%). SAD led to a significant increase in superior humeral translation of 2.5 mm (28%).
CONCLUSIONS
The results of this cadaveric study showed that resection of the CAL led to a 2.1-mm increase in anterosuperior translation and that SAD led to a 2.5-mm increase in superior translation.
CLINICAL RELEVANCE
CAL resection and SAD are common surgical procedures, which may lead to increases in anterosuperior and superior glenohumeral instability.
目的
在肩袖完整的尸体模型中，确定喙肩韧带（CAL）切除及肩峰下减压（SAD）/肩峰成形术对在前后上和上方向负荷下肱骨头平移的影响。
方法
对六个尸体肩关节在完整状态下、CAL切除后及SAD后进行测试。
结果
CAL切除导致肱骨头前后上平移显著增加2.1毫米（17%）。SAD导致肱骨头向上平移显著增加2.5毫米（28%）。
结论
该尸体研究结果表明，CAL切除导致前后上平移增加2.1毫米，SAD导致向上平移增加2.5毫米。
临床意义
CAL切除和SAD是常见的外科手术，可能导致盂肱关节前后上和上方不稳定增加。
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