Prehabilitation Improves Early Outcomes in Lumbar Spinal Stenosis Surgery: A Pilot Randomized Controlled Trial.

Study Design: A pilot randomized controlled trial.

Objective: To investigate the effects of a prehabilitation program on early postoperative outcomes in Japanese patients undergoing lumbar spinal stenosis (LSS) surgery.

Summary Of Background Data: Prehabilitation has shown promise for improving postoperative outcomes in various surgical populations. However, its effectiveness in Japanese patients undergoing LSS surgery has not been previously studied.

Methods: Thirty-two of 34 patients scheduled for LSS surgery (mean age: 69.3 y, 17 female) were randomly assigned to the prehabilitation group (15 patients) or control group (17 patients). The primary outcomes were the Oswestry Disability Index (ODI) and 6-minute walk distance (6MWD). The secondary endpoints were the visual analog scale (VAS) scores for back pain, leg pain, and numbness. The intervention group received a 20-30-minute educational session from a physical or occupational therapist using a pamphlet 1 month before surgery, while the control group received a pamphlet handout. Assessments were conducted 1 month before surgery (baseline); 1 day before surgery; and 1, 3, and 6 months postoperatively.

Results: All patients underwent preoperative educational sessions. The prehabilitation group showed significant improvements in 6MWD at 3 months postoperatively compared with the control group (446.8±48.9 m vs. 384.3±58.3 m, P=0.01, Hedges' g=1.11). ODI scores at 1 month postoperatively were lower in the prehabilitation group (10.2±10.9 vs. 19.0±10.7, P=0.04, Hedges' g=-0.77). Low back pain VAS at 3 months postoperatively was also lower in the prehabilitation group (12.5±14.8 vs. 27.5±20.8, P=0.04, Hedges' g=0.75). No adverse events were reported in either of the groups.

Conclusions: Prehabilitation may enhance postoperative recovery and outcomes in patients undergoing surgery for LSS. Further research with a larger sample size is needed to establish the effectiveness of prehabilitation in this population.