Lumbar traction carries several real disadvantages: temporary pain increase after sessions, strict contraindications that disqualify a significant portion of back-pain sufferers, and long-term structural evidence that remains inconclusive despite solid short-term results.
Mechanically, lumbar traction reduces intradiscal pressure and creates intervertebral space — but that same pulling force can worsen nerve compression in sequestrated or free-fragment herniations, where retracted disc material has broken free from the disc wall. Users with osteoporosis face fracture risk under sustained force loads. Even in appropriate candidates, a 2024 PMC systematic review found traction delivers meaningful short-term pain and disability reduction, while separate Cochrane-affiliated analysis found no advantage over sham traction for long-term outcomes — meaning the benefit requires consistent, ongoing use rather than a fixed course of treatment.
- Standard lumbar traction devices generate up to 450N of force — enough to aggravate free-fragment herniations if contraindications are ignored.
- Short-term traction evidence is solid; long-term structural outcome evidence remains mixed per Cochrane-affiliated review data.
- Absolute contraindications include sequestrated disc herniation, osteoporosis, pregnancy, spinal malignancy, and spinal tuberculosis.
- Post-session soreness is a documented temporary response, distinct from warning-sign pain that indicates the session should stop immediately.
- HOTMUZ standard model lumbar traction is contraindicated for waist circumferences over 39 inches (100 cm) and body weight over approximately 176 lbs (80 kg).