Research Article

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

Table 3

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

OutcomeTimePRP group () value#

PF of SF-36 (median (1st-3rd))Baseline60.0 (45.0-70.0)Ref
1 week75.0 (60.0-90.0)0.284
1 month88.0 (76.5-95.0)<0.001
3 months90.0 (82.5-95.0)<0.001
6 months90.0 (87.5-93.0)<0.001
1 year90.0 (90.0-95.0)<0.001
value over time<0.001

BP of SF-36 (median (1st-3rd))Baseline41.0 (31.0-51.0)Ref
1 week43.0 (41.0-52.0)0.794
1 month52.0 (41.0-62.0)0.005
3 months82.0 (61.0-94.0)<0.001
6 months74.0 (62.0-85.5)<0.001
1 year74.0 (64.0-87.0)<0.001
value over time<0.001

F-wave rate (%, median (1st-3rd))Baseline82.0 (80.0-85.0)Ref
1 year95.0 (92.0-100.0)<0.001

F-wave latency (ms, median (1st-3rd))Baseline48.7 (46.9-49.7)Ref
1 year45.2 (44.5-46.2)<0.001

PRP: platelet-rich plasma; 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.