Alashkham Abduelmenem, Alraddadi Abdulrahman, Soames Roger
Centre for Anatomy and Human Identification, University of Dundee, Dundee, UK.
Human Anatomy Department, Faculty of Medicine, University of Zawia, Zawia, Libya.
JSES Open Access. 2017 Nov 22;1(3):141-143. doi: 10.1016/j.jses.2017.07.005. eCollection 2017 Oct.
The definition of the bare spot and tubercle of Assaki is controversial, with studies reporting different incidences, locations, and clinical significance. The aims of this study were to evaluate the incidence of the bare spot, to determine the length and width of the bare spot, and to assess the relationship between the bare spot and tubercle of Assaki.
A total of 140 shoulders from 30 men and 40 women were dissected and examined. After exposure of the glenoid fossa with the glenoid labrum attached, direct measurement of the length and width of the bare spot was undertaken using digital calipers. The repeatability and reliability of the measurements was assessed using Kruskal-Wallis one way analysis of variance on ranks, with statistical significance set at < .05.
A bare spot was observed in 80.7% (n = 113) of shoulders, being more common in men than in women, with an overall mean length and width of 7.2 mm and 6.2 mm. It was significantly longer ( = .002) and wider ( = .018) in men.
A bare spot exists within the glenoid fossa and differs from the tubercle of Assaki. It is a characteristic round to oval lesion in the central or eccentric cartilage. It should not be misdiagnosed as a pathologic lesion.
阿萨基裸区和结节的定义存在争议，不同研究报告的发生率、位置及临床意义各不相同。本研究旨在评估裸区的发生率，确定裸区的长度和宽度，并评估阿萨基裸区与结节之间的关系。
对30名男性和40名女性的140个肩部进行解剖和检查。在暴露附着有关节盂唇的关节盂窝后，使用数字卡尺直接测量裸区的长度和宽度。测量的重复性和可靠性采用Kruskal-Wallis单向秩方差分析进行评估，统计学显著性设定为<0.05。
80.7%（n = 113）的肩部观察到裸区，男性比女性更常见，总体平均长度和宽度分别为7.2毫米和6.2毫米。男性的裸区明显更长（= 0.002）、更宽（= 0.018）。
关节盂窝内存在裸区，与阿萨基结节不同。它是中央或偏心软骨内特征性的圆形至椭圆形病变。不应将其误诊为病理性病变。
