脊髓栓系综合征（Tethered spinal cord syndrome (TCS) or occult spinal dysraphism sequence ）是指一种由脊髓畸形导致的神经障碍（脑神经失调）。 由不同的方式呈现：

所有的形式都牵涉到基于脊椎管的对脊髓的拉扯，字面上来说便是被“绳束”了。人的脊髓正常情况下松弛地悬在脊椎管中，可以自由地随着生长，弯曲，或拉伸上下移动。脊髓栓系便是脊髓被紧张地束缚在脊髓管末端或是在脊髓管中。对于小孩来说，随着生长，“绳束”可以强制脊髓拉伸形成栓系。对于成人来说，脊髓的拉伸可以缘于平时的运动，在未经治疗的情况下逐步对脊髓神经造成伤害。脊髓栓系常常与脊柱裂有关，但是不是一定性的，这取决于其表现形式。打个比方，它可以是先天性的神经被系于末梢，也可以是后天受伤所致。

Tethered cord syndrome (TCS) or occult spinal dysraphism sequence refers to a group of neurological disorders that relate to malformations of the spinal cord. Various forms include:

All forms involve the pulling of the spinal cord at the base of the spinal canal, literally a tethered cord. The spinal cord normally hangs loose in the canal, free to move up and down with growth, and with bending and stretching. A tethered cord, however, is held taut at the end or at some point in the spinal canal. In children, a tethered cord can force the spinal cord to stretch as they grow. In adults the spinal cord stretches in the course of normal activity, usually leading to progressive spinal cord damage if untreated. TCS is often associated with the closure of a spina bifida. It can be congenital, such as in tight filum terminale, or the result of injury later in life.