One vertebra has slipped forward on the one below. Most are stable and many cause no symptoms at all.
What it is
Graded 1 to 4 by the degree of slip. Grade 1 and 2 are by far the most common.
Two main types: degenerative, from facet and disc wear in older adults, and isthmic, from a defect in the pars interarticularis, often dating to adolescent sport.
How it usually presents
- Low back pain worse with standing and walking.
- Relief on sitting or bending forward.
- Leg symptoms if the slip narrows the nerve exits.
- Hamstring tightness, particularly in the isthmic type.
How we treat it
- Epidural injection where nerve roots are irritated.
- Medial branch block and ablation for the facet component.
- Physical therapy emphasising flexion and core stability.
- Surgical referral for progression or significant neurological compromise.
To be assessed, call (314) 310-5577 or request an appointment.
Common questions
Will the slip get worse?
Most low-grade slips are stable for decades. Progression is monitored rather than assumed.
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Monday–Friday, 8:00 a.m. – 4:00 p.m. Same-day appointments are often available for new accident and injury patients.