Spondylolisthesis

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spondylolisthesis overview diagnosis treatment AAOS

Spondylolisthesis is a condition where one vertebra slips forward relative to the vertebra beneath it, usually in the lower lumbar spine, often at L5-S1.

Common types

Isthmic: related to a defect or stress fracture in the pars interarticularis, often beginning in adolescence.
Degenerative: caused by age-related disc and facet-joint wear, more common in adults.
Less commonly: congenital, traumatic, pathological, or post-surgical.

Symptoms

Some people have no symptoms. Others may have:

Low-back pain or stiffness
Buttock or leg pain, tingling, numbness, or weakness from nerve compression
Tight hamstrings and altered posture
Pain worse with standing, walking, extension, or activity

Diagnosis

Assessment includes neurologic examination and standing lumbar X-rays. Flexion-extension X-rays can assess instability; MRI is useful if nerve compression is suspected, while CT can better show a pars defect.

Treatment

Most low-grade cases are initially managed without surgery:

Activity modification and guided physiotherapy, especially core stabilization
Pain-relieving medicines when appropriate
Selective injections in some cases

Surgery, typically decompression with or without spinal fusion, may be considered for progressive or high-grade slip, persistent disabling symptoms despite non-operative treatment, or neurological deficits. The AAOS overview describes these approaches.

Seek urgent medical assessment for new bladder or bowel dysfunction, numbness in the saddle area, rapidly worsening leg weakness, or severe trauma-associated back pain.

What exercises are safe for spondylolisthesis?

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For most people with low-grade, stable spondylolisthesis, the safest approach is low-impact conditioning plus exercises that stabilize the trunk while keeping the low back in a neutral or slightly flexed position. A physiotherapist should tailor the plan, especially if you have leg symptoms or a high-grade slip.

Generally safe exercises

Start gently, usually 2-3 sets of 6-10 controlled repetitions, stopping if pain spreads into the buttock or leg.

Abdominal bracing
- Lie on your back with knees bent.
- Gently tighten the lower abdominal muscles as if preparing for a cough, without holding your breath or flattening your back forcefully.
- Hold 5-10 seconds.
Pelvic tilts
- On your back with knees bent, gently tip the pelvis to bring the low back a little closer to the floor.
- Return to neutral. Keep it small and pain-free.
Modified curl-up
- One knee bent, one leg straight; hands support the natural curve of the lower back.
- Lift only the head and shoulders slightly, keeping the spine neutral. Do not pull the neck.
Bird-dog, modified first
- On hands and knees, brace the abdomen and extend one leg straight back without letting the low back sag.
- Progress to opposite arm and leg only if you can keep the trunk still and symptom-free.
Side plank, modified
- Support yourself on the forearm and knees, keeping hips and shoulders aligned.
- This strengthens the side abdominal and hip muscles with minimal spinal movement.
Glute bridge
- Lie on your back with knees bent; squeeze the buttocks and lift the hips only until your trunk is aligned, not arched.
- If you feel low-back compression, reduce the height or stop.
Hamstring and hip-flexor stretches
- Gentle hamstring stretching and hip mobility can be useful, without forcing range or rounding/arching the spine. AAOS specifically includes hamstring flexibility and abdominal/back strengthening in rehabilitation for this condition. AAOS guidance
Low-impact aerobic activity
- Walking on level ground, stationary cycling, swimming, or water walking are commonly well tolerated.
- Begin with 5-10 minutes and increase gradually if symptoms stay stable.

Usually avoid initially

Particularly in isthmic spondylolisthesis or when extension provokes pain:

Repeated back-bending or hyperextension, such as cobra/upward-dog stretches, gymnastics bridges, and some yoga backbends
Heavy overhead lifting, heavy squats/deadlifts, or lifting with a rounded or arched back
High-impact jumping and running during a painful flare
Sit-ups that cause strong lumbar arching
Twisting under load

Orthopaedic texts recommend trunk stabilization while avoiding extension during symptomatic periods. A 2024 systematic review and meta-analysis also found lumbar segmental-stabilization exercise programs improved pain and disability in spondylolysis/spondylolisthesis populations (PMID: 38514931).

Safety rule

An exercise is not suitable if it causes:

Sharp back pain
New or increasing pain, numbness, tingling, or weakness in a leg
Symptoms that remain worse later that day or the next morning

Seek urgent assessment for new bladder/bowel difficulty, saddle numbness, or rapidly worsening leg weakness.

Create a beginner-friendly exercise plan for spondylolisthesis

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Beginner exercise plan for spondylolisthesis

This plan is for an adult with a stable, low-grade lumbar spondylolisthesis who has been cleared to exercise. It emphasizes core and hip stability, hamstring flexibility, and low-impact conditioning while avoiding repeated lumbar back-bending. This matches orthopaedic guidance favoring core strengthening, flexion-based exercise, and aerobic conditioning, with extension avoided when it provokes symptoms. AAOS guidance

Do not start this without individual advice if you have a high-grade slip, recent injury, progressive symptoms, prior spine surgery, or significant leg weakness.

Rules for every session

Keep the low back neutral or gently flattened, not arched.
Move slowly. Do not work through sharp pain.
Mild muscular effort is fine. Stop if pain travels into the buttock or leg, or if numbness, tingling, or weakness increases.
If symptoms are worse for more than 24 hours, cut the next session by about half.
Avoid repeated spinal extension: backbends, cobra/upward-dog, bridges with a large arch, heavy overhead lifting, jumping, and twisting under load.

Schedule: Weeks 1-2

Do this routine 3 non-consecutive days each week, about 15-20 minutes.

Exercise	How to do it	Dose
Easy warm-up	Level-ground walk or stationary bike at an easy pace.	5-10 min
Abdominal brace	Lie on your back, knees bent. Gently tighten the lower abdomen as though preparing for a cough. Breathe normally and do not force your back flat.	5 reps, hold 5-10 sec
Pelvic tilt	In the same position, gently tip the pelvis so the low back moves slightly toward the floor, then return to neutral.	1 set of 8-10
Heel slides	Brace your abdomen. Slowly slide one heel away until just before your back wants to arch, then return. Alternate sides.	1 set of 6-8 each side
Supported glute bridge	Brace, squeeze the buttocks, and lift the hips only to a comfortable height. Keep ribs down and avoid arching the low back.	1 set of 6-8
Hamstring stretch	Lie on your back and use a towel behind the thigh or calf. Straighten the knee only until you feel a mild stretch, not nerve pain.	2 holds of 20-30 sec each side
Gentle walk to finish	Easy walking, relaxed posture.	3-5 min

Schedule: Weeks 3-4

If Weeks 1-2 did not cause a flare, do this routine 3 days per week, about 20-30 minutes.

Exercise	How to do it	Dose
Low-impact warm-up	Walking or stationary cycling.	10-15 min
Abdominal brace	As above, progressing the hold time.	6 reps, hold 10 sec
Heel slides	Keep the pelvis and low back still.	2 sets of 8 each side
Bird-dog, beginner	On hands and knees, brace your abdomen. Slide one foot straight back with toes on the floor, then return. Keep the back level.	1-2 sets of 6 each side
Modified side plank	Lie on your side with knees bent, supported on forearm and knees. Lift hips gently without twisting.	3-5 holds of 5-10 sec per side
Glute bridge	Increase repetitions only if you can maintain a neutral low back.	2 sets of 8
Hamstring stretch	Gentle, no bouncing.	2 holds of 30 sec each side

After 4 weeks

If symptoms are stable or improving, choose one progression at a time:

Add 2-5 minutes to walking or cycling, aiming for 20-30 minutes on most days.
Add 1-2 repetitions per strengthening exercise, up to 10-12.
Progress bird-dog from a foot slide to lifting the leg a few centimetres, only if the back does not sag or rotate.
Hold the modified side plank up to 15-20 seconds.

Do not progress through pain or by adding spinal extension. A 2024 systematic review and meta-analysis found lumbar segmental-stabilization exercises improved pain and disability in people with spondylolysis or spondylolisthesis (PMID: 38514931).

Get assessed before continuing if you develop

New or worsening leg weakness
Pain, numbness, or tingling that persists or increases
Problems with bladder or bowel control, or numbness around the groin or saddle area, which need urgent assessment
Pain that is steadily worsening despite reducing activity

A physiotherapist can adjust this to whether your slip is isthmic or degenerative, its grade, and whether your symptoms behave better with flexion or extension.

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