Ramsden W H, Mannion R A, Simpkins K C, deDombal F T
Department of Diagnostic Radiology, Leeds General Infirmary.
Clin Radiol. 1993 Feb;47(2):100-3. doi: 10.1016/s0009-9260(05)81181-x.
For over 100 years the recognized surface marking for the appendix has been McBurney's point (the junction of the lateral and middle thirds of a line joining the umbilicus with the right anterior superior iliac spine (ASIS)). In order to test its validity, the relationship between McBurney's point and the appendix was determined on 275 double contrast barium enemas (DCBE). A wide spread of distribution of the site of the appendix base was seen. Only 35% of appendix bases were found to lie within 5 cm of McBurney's point, and 15% were more than 10 cm distant. Seventy-five per cent of appendix bases were below and medial to a line joining the umbilicus with the right ASIS. These findings are in agreement with world-wide studies conducted by the World Organisation of Gastroenterology which showed that less than half of all patients with appendicitis have tenderness maximal over McBurney's point. A record was also made in 93 cases of the position of the appendix in relation to the caecum. The importance of these results in the diagnosis and management of patients with suspected appendicitis is discussed.
100多年来，公认的阑尾体表标志是麦氏点（脐与右髂前上棘连线的中外1/3交界处）。为了验证其有效性，在275例双重对比钡剂灌肠（DCBE）检查中确定了麦氏点与阑尾之间的关系。阑尾根部位置分布广泛。仅35%的阑尾根部位于麦氏点5厘米范围内，15%距离超过10厘米。75%的阑尾根部位于脐与右髂前上棘连线的下方和内侧。这些发现与世界胃肠病学组织在全球开展的研究结果一致，该研究表明，所有阑尾炎患者中不到一半在麦氏点有最明显的压痛。还记录了93例阑尾相对于盲肠的位置。讨论了这些结果在疑似阑尾炎患者诊断和治疗中的重要性。
