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.
Average scores of LBP (a) and leg symptoms (b) at different follow-up time points in the union and nonunion groups. Open bars, union group (n = 30); filled bars, nonunion group (n = 10). The error bars indicate standard deviation. The P values were calculated by using the Mann–Whitney test. Patients who underwent revision surgery were excluded. (Preop Preoperative values)
