Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Tomographic reconstruction of rat lumbar spine. The chitosanhydroxyapatite membrane group (A) had eight scores of complete trabecular fusion mass compared with no one fusion score in the control group (B). The tomographic assessment of fusion was made at 90 days postoperation. L4, lumbar vertebrae 4; L5, lumbar vertebrae 5.
