SPINAL SURGICAL APPARATUS AND METHOD OF TREATING AN ABNORMALLY SHAPED SPINE

摘要

A spinal surgical apparatus is described. The spinal surgical apparatus may include a first member having an adjustable length, wherein the first member allows increase in the length thereof but prevents decrease in the length thereof. Optionally, the spinal surgical apparatus may also include a second member allowing rotation in a first rotational direction but preventing rotation in a second rotational direction opposed to the first rotational direction. A method of treating an abnormally shaped spine is also described.