Figure 1.
Degenerative spondylolisthesis patient age when undergone surgical treatment in six regions, i.e., Japan, South Korea, mainland China, Taiwan, USA, and Europe. Each dot represents the mean age of one reported patient series.
Degenerative spondylolisthesis patient age when undergone surgical treatment in six regions, i.e., Japan, South Korea, mainland China, Taiwan, USA, and Europe. Each dot represents the mean age of one reported patient series.