Sloan Sonya M, Budoff Jeffrey E, Hipp John A, Nguyen Lyndon
Department of Orthopaedic Surgery, Baylor College of Medicine, 6550 Fannin Street, Houston, TX 77030, USA.
J Shoulder Elbow Surg. 2004 Mar-Apr;13(2):186-90. doi: 10.1016/j.jse.2003.12.002.
To preserve the coracoacromial (CA) ligament, we have used the lateral half of the conjoined tendon as an autograft source to replace the coracoclavicular (CC) ligament. The purpose of this study is to compare the ultimate tensile strength of the lateral 12 mm of the conjoined tendon with that of the CA ligament and the CC ligament. Eight paired cadaveric male shoulders were tested to tensile failure with a custom pneumatic testing apparatus. Although the lateral 12 mm of the conjoined tendon was stronger than the CA ligament, this difference was not statistically significant (P =.37). However, the intact CC ligament (621 +/- 209 N) was approximately 250% stronger than either the lateral 12 mm of the conjoined tendon (265 +/- 79 N, P <.001) or the CA ligament (246 +/- 69 N, P <.001). We believe that the lateral half of the conjoined tendon is a viable alternative autograft source for reconstruction of the CC ligament in cases of symptomatic acromioclavicular joint dislocation. Though not as strong as the native CC ligaments, the conjoined tendon is slightly stronger than the commonly used CA ligament.
为保留喙肩韧带（CA），我们使用联合腱的外侧半部分作为自体移植物来源来替代喙锁韧带（CC）。本研究的目的是比较联合腱外侧12毫米部分与CA韧带和CC韧带的极限拉伸强度。使用定制的气动测试设备对8对尸体男性肩部进行拉伸破坏测试。尽管联合腱外侧12毫米部分比CA韧带更强，但这种差异无统计学意义（P = 0.37）。然而，完整的CC韧带（621±209牛）比联合腱外侧12毫米部分（265±79牛，P <0.001）或CA韧带（246±69牛，P <0.001）大约强250%。我们认为，对于有症状的肩锁关节脱位病例，联合腱的外侧半部分是重建CC韧带可行的自体移植物替代来源。尽管联合腱不如天然CC韧带强壮，但比常用的CA韧带稍强。
