中英文字幕：退变性腰椎滑脱（Degenerative Spondylolisthesis）

腰椎滑脱症，按Wiltes分类法分为五型： 
　　Ⅰ型：发育不良型。是骶1上关节突或腰5椎弓先天性缺损，无法阻止腰5椎向前滑脱。 
　　Ⅱ型：峡部型。是峡部(上、下关节突间)应力骨折或延长，使上关节突与上位腰椎一起前移。 
　　Ⅲ型：退变型。由于长期退变，使关节突和椎间盘不稳，而发生滑脱，但滑脱的程度都较轻。 
　　Ⅳ型：创伤型。是急性外伤致椎弓根、椎板、关节突骨折，此型少见。 
　　Ⅴ型：病理型。为全身性疾病如成骨不全、畸形骨炎等。

警告：请在有WIFI的场所观看视频，土豪请随意。

Degenerative Spondylolisthesis

退变性腰椎滑脱

Degenerative spondylolisthesis is a condition in which one vertebral body slips forward on top of the vertebral body below it, as a result of aging processes that weaken the spine. As a person ages, spinal discs tend to weaken and dry out, leading to arthritis that weakens the ligaments and joints of the spine.

　　退变性腰椎滑脱是一个椎体在另一个椎体上方向前滑动的一种病症。这是由于年老使脊柱衰退所致。人老后，脊柱的椎间盘逐渐脱水变性，导致关节炎使脊柱的韧带和关节功能减退。

As the facet joints at the back of the spine weaken, a vertebra may slip forward over the one below it. Degenerative spondylolisthesis occurs most frequently at the L4-L5 or L3-L4 segments of the spine, though it can occur at one to three levels simultaneously, and rarely in the cervical spine.

　　随着脊柱后方的关节突关节衰退，一个椎体可能在另一个椎体上方向前滑动。退变性腰椎滑脱最常见于腰4/5  或腰3/4节段。当然也可能1～3个节段同时发生，但在颈椎较少。

Many people do not have symptoms from degenerative spondylolisthesis. The most common source of pain from degenerative spondylolisthesis comes from a narrowing of the spinal canal. When the vertebra slips forward, it can compress nerve roots and cause low back pain or radiating pain.

　　许多有退变性腰椎滑脱的人没有症状。退变性腰椎滑脱引起疼痛最常见的根源是椎管的狭窄。当椎体向前滑时，会压迫神经，引起腰痛和放射痛。

Patients may also have a tired feeling in the legs or difficulty walking as a result of pinched nerves or tight hamstrings. Degenerative spondylolisthesis is linked to a number of other conditions, including arthritis and degenerative disc disease. Understanding its causes and symptoms is important to developing a treatment program with a doctor.

　　由于神经受压和肌腱紧张，病人会感觉下肢乏力，行走困难。退变性腰椎滑脱还与一些其它病症相关，包括关节炎和退变性椎间盘疾患。了解病因及症状对于和医生一起制定治疗计划很重要。

（高晨珉     转）