Lu Ming, Li Hai-Peng, Liu Yu-Jie, Shen Xue-Zhen, Gao Feng, Hu Bo, Liu Yu-Feng
Medical School of Chinese PLA, Beijing 100853, China.
Department of Orthopedics, The Fourth Medical Center, Chinese PLA General Hospital, Beijing 100853, China.
World J Clin Cases. 2021 Nov 16;9(32):9783-9791. doi: 10.12998/wjcc.v9.i32.9783.
Severe bony Bankart lesions are a difficult challenge in clinical treatment and research. The current treatment methods consist mostly of Latarjet-Bristow surgery and its modified procedures. While good results have been achieved, there are also complications such as coracoid fracture, bone graft displacement, and vascular and nerve injury.
To analyze the techniques and biomechanical properties of transversely fixing a bone block from the scapular spine using bone allograft pins with suture threads to repair bony Bankart lesions.
Fresh human shoulder joint specimens and a cadaver specimen model for scapular bone grafting with allograft pin fixation for repair of bony Bankart lesions were used. When the humeral rotation angles were 0°, 30°, 60° and 90°, and the axial loads were 30 N, 40 N, and 50 N, the humerus displacement was studied by biomechanical experiments.
When the angle of external rotation of the humerus was 0°, 30°, 60°, and 90°, with axial loads of 30 N, 40 N, and 50 N, the data of the normal control group, allograft pin repair group, and titanium alloy hollow screw repair group were compared with each other by the -test, which showed that there were no statistically differences among the three groups ( > 0.05).
The joints repaired with bone block from the scapular spine transversely fixed with allograft bony pins to repair bony Bankart lesions show good mechanical stability. The bone block has similar properties to normal glenohumeral joints in terms of biomechanical stability.
严重的骨性Bankart损伤是临床治疗和研究中的一项难题。目前的治疗方法主要包括Latarjet-Bristow手术及其改良术式。虽然已取得了良好的效果，但也存在一些并发症，如喙突骨折、骨移植移位以及血管和神经损伤。
分析使用带缝线的同种异体骨针横向固定来自肩胛冈的骨块修复骨性Bankart损伤的技术及生物力学特性。
使用新鲜人体肩关节标本以及用于同种异体骨针固定肩胛冈骨移植修复骨性Bankart损伤的尸体标本模型。当肱骨旋转角度为0°、30°、60°和90°，轴向载荷为30 N、40 N和50 N时，通过生物力学实验研究肱骨位移情况。
当肱骨外旋角度为0°、30°、60°和90°，轴向载荷为30 N、40 N和50 N时，将正常对照组、同种异体骨针修复组和钛合金空心螺钉修复组的数据进行t检验比较，结果显示三组之间无统计学差异（P>0.05）。
采用同种异体骨针横向固定肩胛冈骨块修复骨性Bankart损伤的关节具有良好的力学稳定性。在生物力学稳定性方面，该骨块与正常肱盂关节具有相似的特性。
