One hundred sixteen consecutive patients entered a functional restoration treatment
program for chronic low back pain and were compared with 72 patients not treated. A two-
year follow-up survey reached more than 85% of both groups; its findings were compared
with earlier results of a five-month and one-year follow-up. Analysis demonstrated that 87%
of the treatment group was actively working after two years, as compared with only 41% of
the nontreatment comparison group. Moreover, about twice as many of the comparison …

A prospective two-year study of functional restoration in industrial low back injury | CiNii
Research … A prospective two-year study of functional restoration in industrial low back
injury … Spine 13 1763-1767, 1987 …