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首页> 外文期刊>Journal of shoulder and elbow surgery >The influence of superior labrum anterior to posterior (SLAP) repair on restoring baseline glenohumeral translation and increased biceps loading after simulated SLAP tear and the effectiveness of SLAP repair after long head of biceps tenotomy
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The influence of superior labrum anterior to posterior (SLAP) repair on restoring baseline glenohumeral translation and increased biceps loading after simulated SLAP tear and the effectiveness of SLAP repair after long head of biceps tenotomy

机译：高唇缘前往后（拍摄）修复对恢复基线Glenohumers翻译的影响及模拟瓶撕裂后肱二头肌加载增加及折扣修复后肱二头肌术后的效果

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Hypothesis: Biomechanical studies have shown increased glenohumeral translation and loading of the long head biceps (LHB) tendon after superior labrum anterior to posterior (SLAP) tears. This may explain some of the typical clinical findings, including the prevalence of humeral chondral lesions, after SLAP lesions. The first hypothesis was that SLAP repair could restore the original glenohumeral translation and reduce the increased LHB load after SLAP lesions. The second hypothesis was that SLAP repair after LHB tenotomy could significantly reduce the increased glenohumeral translation. Materials and methods: Biomechanical testing was performed on 21 fresh frozen human cadaveric shoulders with an intact shoulder girdle using a sensor-guided industrial robot to apply 20 N of compression in the joint and 50 N translational force at 0°, 30°, and 60° of abduction. LHB loading was measured by a load-cell with 5 N and 25 N preload. Type IIC SLAP lesions were created arthroscopically, and a standardized SLAP repair was done combined with or without LHB tenotomy. Results: No significant difference of glenohumeral translation and increased LHB load in SLAP repair compared with the intact shoulder was observed under 5 N and 25 LHB preload, except for anterior translation under 25 N LHB preload. After LHB tenotomy after SLAP lesions, no significant difference of translation was observed with or without SLAP repair. Conclusions: SLAP repair without associated LHB tenotomy helps normalize glenohumeral translation and LHB loading. The stabilizing effect of the SLAP complex is dependent on the LHB. After biceps tenotomy, SLAP repair does not affect glenohumeral translation.
机译：假设：生物力学研究表明，高级唇缘前（拍摄）撕裂后的Glenohumeral翻译和长头二头肌（LHB）肌腱的加载量增加。这可以解释一些典型的临床发现，包括禁止病变后肱骨骨性病变的患病率。第一个假设是，蛋清振动修复可以恢复原始的Glenohumeral翻译，并减少振荡病变后的LHB负荷增加。第二个假设是LHB协调术后振荡修复可以显着降低增加的Glenohumeral翻译。材料和方法：使用传感器引导的工业机器人在21种新鲜冷冻的人尸体肩部进行生物力学测试，使用传感器引导的工业机器人在接头中施加20 n，在0°，30°和60处使用50 n个平移力。剥夺。通过具有5 n和25 n预载荷的载荷单元测量LHB载荷。在关节镜下创建IIC键盘病变，并结合或没有LHB协调术，完成了标准化的振动修复。结果：在5 n和25LHB预载下观察到胶质肿块翻译和LHB负荷增加的LHB负荷的显着差异，除了25 n和25LHB预载，除了25 n和25LHB预载。在拍摄病变后LHB协调术后，没有观察到翻译的显着差异或没有振动修复。结论：没有相关的LHB Tenotomy的拍打修复有助于使Glenohumeral翻译和LHB Loading标准化。蛋白质的稳定效果依赖于LHB。肱二头肌后，拍打修复不会影响Glenohumeral翻译。

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