Research Article

Ultrasound-Guided Transforaminal Injections of Platelet-Rich Plasma Compared with Steroid in Lumbar Disc Herniation: A Prospective, Randomized, Controlled Study

Table 5

Longitudinal outcomes of life quality and nerve function for the steroid group over time.

OutcomeTimeSteroid group () value#

PF of SF-36 (median (1st-3rd))Baseline65.0 (55.0-80.0)Ref
1 week70.0 (60.0-90.0)0.152
1 month88.0 (75.0-95.0)<0.001
3 months90.0 (70.0-95.0)<0.001
6 months90.0 (88.0-95.0)<0.001
1 year90.0 (80.0-95.0)<0.001
value over time<0.001

BP of SF-36 (median (1st-3rd))Baseline41.0 (41.0-52.0)Ref
1 week47.0 (41.0-61.0)1.000
1 month52.0 (41.0-72.0)0.004
3 months74.0 (51.0-94.0)<0.001
6 months72.0 (62.0-94.0)<0.001
1 year74.0 (62.0-94.0)<0.001
value over time<0.001

F-wave rate (%, median (1st-3rd))Baseline82.0 (80.0-95.0)Ref
1 year95.0 (90.0-100.0)<0.001

F-wave latency (ms, median (1st-3rd))Baseline48.9 (47.8-50.8)Ref
1 year45.2 (43.6-46.3)<0.001

1st-3rd: 1st-3rd quartiles; SF-36: the 36-item short form health survey; PF: physical function; BP: bodily pain. # value compares difference from baseline using post hoc test or Wilcoxon signed-rank test. value indicates significance of overall change over time using the Friedman test.