BARE SPOT LOCATION IN GLENOID CAVITY: COMPARISON BETWEEN ARTHROSCOPY AND CT SCAN

ABSTRACT Objective: To assess whether Bare Spot is previously displaced by proportion (MEASURE BP-A × 1.25/MEASURE BP-P = 1). Methods: 35 patients with surgical indication for rotator cuff injury repair were evaluated. The distances from the Bare Spot to the anterior edge of the glenoid cavity (BS-A) and to the posterior edge (BS-P) were measured by arthroscopy and computed tomography with three-dimensional reconstruction of the scapula. Results: The distance from the Bare Spot to the anterior border (BS-A tc) was 11.6 mm with a median 12 mm; The distance to the posterior border (BS-P tc) was on average 15.5 mm with a median 15 mm. The distances from BS to anterior cavity edge measured by arthroscopy were on average (BS-A video) 12.25 mm with a median of 12 mm, and from BS to posterior edge (BS-P video) 16.25 mm on average with median 16 mm (p摘要 目的：评估裸区（Bare Spot）是否按比例发生移位（即测量值BP-A ×1.25/测量值BP-P =1）。方法：本研究纳入35例符合肩袖损伤修复手术指征的患者作为研究对象。采用关节镜及肩胛骨三维重建计算机断层扫描（CT），测量裸区至肩胛盂（glenoid cavity）前缘（BS-A）及肩胛盂后缘（BS-P）的距离。结果：裸区至肩胛盂前缘的CT测量值（BS-A tc）均值为11.6mm，中位数为12mm；裸区至肩胛盂后缘的CT测量值（BS-P tc）均值为15.5mm，中位数为15mm。通过关节镜测量的裸区至肩胛盂前缘距离（BS-A video）均值为12.25mm，中位数为12mm；裸区至肩胛盂后缘距离（BS-P video）均值为16.25mm，中位数为16mm（p