Abstract: ObjectiveTo investigate the factors influencing pelvic traction used for prolapse of lumbar intervertebral disc (PLID).Methods200 PLID patients were treated by pelvic traction 30 min/d for 3 courses (10 days as one course).ResultsAfter treatment, therapeutic effects were prominent in 58 cases, effective in 78 cases, improvable in 34 cases, and invalid in 30 cases.ConclusionThere are definite indications in the treatment of PLID with pelvic traction. In order to gain satisfied therapeutic effect, appropriate cases should be selected for pelvic traction.

Key words: pelvic traction, prolapse of lumbar intervertebral disc, influencing factor