骶骨肿瘤切刮治疗对排尿功能影响的解剖基础

骶骨肿瘤根据肿瘤性质对在肿瘤内走行的骶神经可以有挤压、侵袭和破坏.下部肿瘤（S4～S5）在切除游离中S4、S5神经通常被切断.位于S3以上的良性肿瘤常在病灶内搔刮肿瘤组织,同时注意保护在肿瘤内通过的骶神经,使之尽量保留双下肢的足踝运动和排尿功能.为此,本文对骶神经的功能解剖做如下介绍.

The anatomical basis of the influence on micturition function after sacral tumor resection

According to the nature of the sacral tumor, it could lead to the extrusion, invasion and destruction of the sacral nerve. S4 and S5 nerve were usually cut off, when S4 and S5 were fouled by sacral tumors. The tumor tissues of the benign sacral tumor in S3 and above were always scraped within the lesion, so that we should protect the nerve root to save the motion of lower limbs and urination function. The author＇s experience： after keeping the nerve root of S1 and above, all the patients would be of the loss of urination function, and need to be catheterized in time. After keeping the nerve root of S3 and above, all patients could urinate. After keeping the nerve root of S2 and above, some of patients could urinate while others couldn＇t. In this paper the anatomical function of the sacral nerve was introduced.