Spondylolisthesis: Everything you ever wanted to know, and more…..

The History of Spondylolisthesis

Spondylolisthesis is a medical term that describes an abnormal anatomic alignment between two bones in the spine.  This anatomic abnormality has been around since antiquity.  It was first described in the modern medical literature by a Belgian obstetrician named Dr. Herbinaux.   In 1782, Dr. Herbinaux noticed that the abnormal alignment of the lumbar spine and pelvis in very severe cases made natural childbirth difficult.  He was the first one to name this condition in which one vertebral body is slipped forward with respect to the one underneath it.

The term spondylolisthesis comes from two greek words: “spondy” (σπονδυλος) which means “vertebra” and “listhesis” (ὁλισθος) which means “a slip”.

How common is spondylolisthesis?

Spondylolisthesis most commonly affects the lower lumbar spine, typically at the L4/5 or L5/S1 levels.  Spondylolisthesis is a very common condition, occurring in about 5% of the population.  The most common type of spondylolisthesis is a degenerative slip that occurs at the L4/5 level.  This type of slip is caused by degeneration of the intervertebral disk and the facet joints.  Natural aging results in an increase in the “sloppiness” of the joint, much like a worn bushing in a car.  Here are two images that depict the changes that occur as the disk degenerates.  The gel-like substance inside the disk shrinks, the edges of the disk become irregular, and bone spurs develop.

normal anatomy of the lumbar spine

mechanical wear and tear on the spine creates a spondylolisthesis  degenerative disk disease

In this series of images, I use a CV joint from a car to illustrate how the spine is a mechanical joint and many years of “wear and tear” will cause the joint to become sloppy.

 

 

The Medical Definition of a degenerative spondylolisthesis

A recent clinical consensus paper was produced by the North American Spine Society will be referenced throughout this guide.  Their version of the “best working definition” of a degenerative lumbar spondylolisthesis is as follows: an acquired anterior displacement of one vertebra over the subjacent vertebrae, associated with degenerative changes, without an associated disruption or defect in the vertebral ring.

The key elements in this definition — anterior slip, degenerative change, and no disruption of the vertebral ring are easy to demonstrate in a typical case of spondylolisthesis.  As the disk deteriorates it becomes less capable of absorbing all of the forces of normal human movement.  Because the joint has increased “play” or “sloppiness” L4 starts to slip forward with respect to L5.  Here are X-rays and an MRI scan of a typical case of a grade 1 spondylolisthesis.  Flexion and extension X-rays are often used to evaluate how much abnormal motion occurs at the level of the spondylolisthesis.

  spondylolisthesis AP xray grade 1  lateral xray grade 1 L4.5 spondylolisthesis   lateral xray grade 1 L4.5 spondylolisthesis flexion view  lateral xray grade 1 L4.5 spondylolisthesis extension view

The second most common type of spondylolisthesis that we see occurs at L5/S1.  This condition is especially common in people who have repetitively extended their spine during athletics in adolescence.  The theory is that repetitive hyperextension of the spine during athletics results in a stress fracture.  This stress fracture called a spondylolysis.  The stress fracture occurs in a part of the vertebral body called the pars inter-articularis which disrupts the continuity of the vertebral ring.  The lack of a connection between the posterior and anterior parts of the L5 vertebral body allows the L5 vertebral body to slip forwards with respect to S1.  The association between adolescent athletics and this condition is very strong.  About 95% of competitive gymnasts and about 35% of competitive football players have X-ray evidence of the stress fracture that may result in a spondylolisthesis later on in life.

hyperextension of the spine results in spondylolysis hyperextension of the spine during gymnastics spondylolysis  spondylolysis fracture of the pars inter-articularis high grade spondylolisthesis with spondylolysis

This condition usually develops in two stages.  First, the patient has an episode of low back pain during their adolescence which is when the stress fracture of the pars interarticularis occurs.  Then as the disk starts to degenerate later in life, they begin to complain of low back and leg pain.  In contrast to a degenerative spondylolisthesis, this type of slip does involve a disruption of the vertebral ring, so this is often called an “isthmic” spondylolisthesis

Symptoms of spondylolisthesis 

Patients with spondylolisthesis complain of low back pain and pain along the course of the nerves that are pinched by the spondylolisthesis.  The narrowing of the normal space available for the nerve roots in the spinal canal is called stenosis.  The back pain typically occurs in the area of the lower lumbar spine and often radiates around the abdomen and into the buttocks.  The location of the nerve root pain depends upon where the slip is occurring and where the nerve roots are compressed.

Nerve root compression due to stenosis is called a radiculopathy: radix is the greek word for “root” and pathos a word for “a disease of”.   Pain and numbness in the legs as the result of a spondylolisthesis occurs in patterns called a radiculopathy that are very characteristic.  The human body is divided into a series of dermatomes which can be visualized as a map of where the nerves travel after the leave the spinal canal.  When the root of the nerve is affected, the entire course of the nerve is typically painful, numb, or the skin in this area is unusually sensitive.  For example, here is a map of the normal dermatomes of the body, and then three diagrams of an L4, L5, and S1 radiculopathy.  Patients with a spondylolisthesis at L4/5 usually have L5 nerve root pain due to compression of the L5 nerve root in the neural foramen.  Patients with a slip at L5/S1 usually have both L5 nerve and S1 root pain due to tension on the nerve roots.  For example, a patient with an L4/5 spondylolisthesis will usually describe low back pain at the base of the spine, radiating into the buttocks.  There is usually also pain and numbness along the sides of the legs, down the front and sides of the calves, with numbness and tingling in the feet.

If your major problem is pain and numbness in the legs, and especially if it is only affecting one leg, you may be a good candidate for a microscopic decompression instead of a fusion.  If you are interested in exploring this option, I may be able to review your MRI scan for you.

L4 radiculopathy

L4 nerve root pain

L5 radiculopathy

L5 nerve root pain

S1 radiculopathy

S1 nerve root pain

   

The pain that is associated with spondylolisthesis is variable.  It is often worse with standing.  Many patients find that the length of time they can walk comfortably gets shorter and shorter as the disease progresses.  We call this finding “limited walking endurance”.   This is often an indicator of how severely the patient is affected and how much nerve root compression they have.  Patients who are able to walk for more than an hour rarely need operative treatment.   Those who can only walk for a few hundred yards before they are limited by back and leg pain are more likely to require surgery.  These patients will often experience substantial relief once their spondylolisthesis is corrected.  While the pain associated with a spondylolisthesis is usually worse when the patient is on their feet, many patients have a hard time sleeping at night because the nerve root pain keeps them awake.

 

Xray and MRI findings in spondylolisthesis.

The best test for diagnosing a spondylolisthesis is a lateral Xray of the lumbar spine with the patient standing.  It is important that the patient is standing because there are some slips that return to their normal position when the patient lies down.  This is why some cases of spondylolisthesis are not apparent on supine X-rays or an MRI scan.  The best test for evaluating the degree of nerve root compression and spinal stenosis caused by spondylolisthesis is an MRI scan of the lumbar spine.

Here are a series of X-rays and MRI scans showing the relevant anatomic finding in a typical L4/5 degenerative spondylolisthesis.  Click on these images to enlarge them to full size

And here are the X-rays and MRI scans of a patient with an L5/S1 spondylolisthesis with bilateral pars defects.

L5/S1 spondylolisthesis

Non-operative treatment of spondylolisthesis

Physical Therapy: While it may not be possible to reverse the degenerative changes that occur with aging, it is possible to strengthen the muscles that surround the spine.  I have written a blog post about this particular point, which can be read here: reversing spondylolisthesis

PT helps to stabilize the lumbar spine and will often result in a decrease in symptoms of low back and leg pain to the point where surgery becomes unnecessary.  This type of therapy MUST emphasize active rehabilitation, which means that the patient must work actively to strengthen the muscles of the abdomen, low back, and core.  Massage, hot pack treatments, and electrical stimulation may feel good at the time, but their effects are usually temporary.  While massage feels great, it usually does NOT result in sustained relief.  The type of therapy that we employ emphasizes core conditioning and strengthening and our therapists will instruct you on how to do these exercises properly.  If your symptoms are relatively mild and you are still able to exercise, hike, and play some sports, then often a Pilates or a Yoga program may be very beneficial, less costly, and more convenient than going to a physical therapist.

physical therapy for spinal instability  core exercises for spinal instability  

Medical Management

Non-steroidal pain relievers like Aspirin, Tylenol, Motrin, and Ibuprofen are very helpful in the management of spondylolisthesis.  The medications can calm down the inflammation that accompanies degenerative disk disease.  This often makes it possible to participate in physical therapy with less pain.  If you can do PT,  it makes it possible to work harder to strengthen the muscles of the low back and abdomen.

NSAIDs for spondylolisthesis

Selective Nerve Root Blocks:  In our clinic we have specialists who perform selective nerve root blocks with injectable medications like Cortisone and Kenalog.  These are much stronger than the anti-inflammatories you can take by mouth.  These injections are performed in the surgical center and are done using an intra-operative X-ray machine to make sure that the medication is injected in the same area where the nerve root compression is occurring.  In our experience, nerve root blocks are very helpful for patients.  They will often result in a sufficient reduction in pain so that physical therapy is tolerable.  The block may also interrupt the “cycle of inflammation” to the point where the symptoms are manageable and surgery can be avoided indefinitely.

 

Why you should avoid narcotics

In our experience, using narcotic pain medications on a daily basis for the treatment of the pain associated with a spondylolisthesis is a bad idea.  Because spondylolisthesis is a condition that tends to worsen with time, most people who start taking narcotics find it very difficult to stop.  The use of narcotic pain medications for an open-ended diagnosis is dangerous.  This is because there is not a defined point in the future when we know that the pain will spontaneously resolve.  For example, if a patient has a fracture, we know that the pain will subside once the fracture heals.  However, with a spondylolisthesis, because there is not a possibility of spontaneous correction, the patient will continue to perceive a need for narcotics on a regular basis.  This quickly leads to tolerance as the medications become less effective with time and their routine use becomes habit forming.  For more information on my philosophy about the use of narcotic pain medications, click here.

What the establishment says about non-operative care for spondylolisthesis

The North American Spine Society’s consensus statement on non-operative care for spondylolisthesis is a follows: The majority of patients with symptomatic degenerative lumbar spondylolisthesis and an absence of neurologic deficits will do well with conservative care. Patients who present with sensory changes, muscle weakness, [or a short walking endurance] are more likely to develop progressive functional decline without surgery. Progression of slip correlates with jobs that require repetitive anterior flexion of the spine. Slip progression is less likely to occur when the disc has lost over 80% of its native height and intervertebral osteophytes have formed. Progression of clinical symptoms does not correlate with progression of the slip.

Surgery for spondylolisthesis: do you need it?

Here is what the North American Spine Society has to say: Surgery is recommended for treatment of patients with symptomatic spinal stenosis associated with low grade degenerative spondylolisthesis whose symptoms have been recalcitrant to a trial of medical and interventional treatment.  In our clinic we agree with this statement.

What this means to us is that patients who have symptoms that can be clearly attributed to their spondylolisthesis should first be educated about their condition.  Next they should consider physical therapy and lifestyle changes that we believe are associated with improvements in back pain.  If they continue to have pain they should consider a selective nerve root block to temporarily reduce the inflammation in the nerve roots — as long as this is seen as a bridge to making physical therapy more tolerable.  Surgery should only be considered when the patient has continued symptoms that do not improve with physical therapy or medical management.

Our technique for the surgical correction of spondylolisthesis is designed to achieve four goals

1. relieve the nerve root compression that is causing pain and numbness in the legs

2. stabilize the unstable spinal segment that is slipping, only if necessary

3. improve the alignment of the spinal canal

4. provide the patient with a durable solution that will improve their quality of life for years to come.

While there is a great deal of debate about the best surgical technique for the treatment of spondylolisthesis, the NASS clinical guidelines do state that surgical decompression with fusion is recommended for the treatment of patients with symptomatic spinal stenosis and degenerative lumbar spondylolisthesis…and that …decompression and fusion is recommended as a means to provide satisfactory long-term (greater than 4+ years) results for the patient.  For example, on a recent Spine Surgery Board Certification Examination administered by the American Academy of Neurological Surgeons, the following question was asked: A 47 year old dentist presents with a 5 year history of intractable low back pain refractory to several courses of physical therapy and numerous medications.  He has recently developed bilateral L5 radiculopathy.  MR imaging demonstrates grade II anterolisthesis of L4 on L5 with resulting L4-5 central canal stenosis and bilateral neuroforaminal stenosis. The BEST treatment option is:

  1. dorsal column stimulator
  2. anterior lumbar interbody cage fusion
  3. laminectomy and pedicle screw fusion
  4. epidural steroid injection
  5. laminectomy with facetectomy

The correct answer, according to the AANS, is #3.  Here is their explanation: This patient has failed reasonable attempts at non-operative management and has an anatomical abnormality that corresponds to his clinical symptomatology.  Surgical correction is the best option.  Decompression alone in the presence of spondylolisthesis in a relatively young patient is associated with a high incidence of progressive listhesis and worsening pain.

Here’s where I disagree.  I think that it in carefully selected patients, a microscopic decompression with meticulous physical therapy and rehabilitation can result is excellent clinical results.  When I am able to alleviate someone’s leg pain so that they can go back to working out and keep their core strong, they are happy.

I’d be happy to give you second opinion if you are interested in whether or not a fusion is necessary in your case

In the meantime, here is a series of pictures from our operating room during correction of a spondylolisthesis of the spine using a traditional approach…

surgery for spondylolisthesis  intraoperative image spondylolisthesis  decompression for spondylolisthesis  size of incision spondylolisthesis surgery  drain connected to reservoir  rolling the patient back into a supine position

Here are a series of x-rays that demonstrate the correction of spondylolisthesis with a decompression and fusion of the slip performed in our clinic in Monterey, California.  You can click on each of these Xrays to enlarge them to full size.

L4.5 degenerative spondylolisthesis repaired with an L4.5 lumbar decompression, instrumented fusion, and reduction of spondylolisthesis.

L4.5 grade 1 spondy AP preop  L4.5 grade 1 spondy lateral preop  L4.5 spondy postop AP  L4.5 spondy postop lat

 

L5/S1 isthmic spondylolisthesis repaired with an L5/S1 lumbar decompression, instrumented fusion, and reduction of spondylolisthesis.

L5.S1 Grade 2 spondylolisthesis AP  L5.S1 Grade 2 spondylolisthesis lateral  L5.S1 Grade 2 spondylolisthesis extension  L5.S1 Grade 2 spondylolisthesis extension  L5.S1 grade 2 spondylolisthesis post op AP  L5.S1 grade 2 spondylolisthesis postop lateral

 

I’ve also got a large number of patients that haven’t needed  a stabilization.  Instead, I’ve done a microscopic decompression for them, especially if they only have pain and numbness in one leg.  If they are able to decrease the chance of future progression of the spondylolisthesis with lumbar spine strengthening exercises, they are delighted with the opportunity to live without a fusion every day.

If you’ve already had an MRI scan and are intrested in discussing your options, I will review your MRI scan for and tell you whether or not I think a microscopic decompression rather than a fusion will work in your case.

To learn more about your options for non-fusion treatment of spondylolisthesis, click here: MRI review.

Leave a comment



Delores

5 years ago

Please advise – my spondylolisthesis seems to be made worse by frequent use of the stairs in my split-level house. Is this often the case with other sufferers of this condition? Passive standing is difficult, but the stairs seem to be the worst. Thank you. Any advice you give would be appreciated.
Delores

kim kosa

5 years ago

please send me exercises

rickey smith sr

5 years ago

i have beebn in so much pain and have had two surgery and still having all this pain in my lower back .If there any way you guys can help me get some relief from this please call me or e-mail me on what can i do for myself to get better.

admin

4 years ago

Dear Rickey,

We would like to review your xrays and MRI findings. Please send a summary of medical history and a copy of your xrays and MRI scans to
Monterey Spine and Joint
attention: Jennifer
12 Upper Ragsdale
Suite A
Monterey, CA 93940

Bryan

4 years ago

My aunt was diagnosed with spondlythesis and had to undergo Δ laminectomy with pedicle and screw fusion. After several weeks of her surgery, she stil experience pain on hip and she has been undergoing physiotherapy. What could be the cause and what exercises can she do to help with the pain. She doesn’t experience the pain with rest and only feels it when she must have walked for 5minutes. She lives in Nigeria. Please advice promptly.

Bryan

4 years ago

My aunt was diagnosed of spondylolisthesis and has undergone a laminectomy with fusion. She has been undergoing physiotherapy for 5weeks now. She still experience excruciating hip pain after walking for 5minutes but no pain on resting. She has been under core and abdomen stabilization exercises. Please advise on what she should do about the hip pain. She is in Nigeria. Thanks

admin

4 years ago

Dear Bryan,
your mother needs to be evaluated by someone who has experience with the diagnosis and management of hip pain as well as spinal disease. If you need someone to review your mother’s xrays, you can contact us via this site or send them to

Monterey Spine and Joint
Attention: Jennifer
12 Upper Ragsdale
Suite A, Monterey CA
93940

Susan Omanson

4 years ago

This is the most helpful article I have found so far on the internet.

I have two spondylothesis – L 5/4 and L5/S1. I have been under chiropractic care for several years, tried electrical stimulation, decompression, exercises, two spinal injection (helped but lasted about 4 weeks). I also am experiencing incontinence. I have had two bladder surgeries (bladder sling) but the incontinence is increasing. My quality of life has dramatically decreased.

Pain and stiffness especially upon standing…can hardly move. My lower calves especially painful. After shuffling for about 20 feet I can increasingly walk but being on my feet and walking for more than several blocks is very difficult.

I have been advised that surgery is not an good option…long recovery and invasive. NEED ADVICE

gael

4 years ago

Hi I am a 34 year old mum of three who has had progressive hip and back pain for 6 years now. My symptoms include nerve pain along the outer section of my leg and calves which has now progressed into my two little toes on the left side. I am always in some sort of discomfort and have tried epidural blocks, nerve pain meds, narcotic drugs, anti inflammtories which are all but useless. I am unable to partake in any form of exercise due to pain and have over the last 6 months fallen a few times due to loss of power in my left leg. I had a recent Mri that stated I had severe spinal stenosis, grade 1-2 spondolthesis l4/5 l5/S1. I am seriously looking to my surgical options but am very frightened. I look forward to your response.

Mona

4 years ago

Hi,

I was diagnosed having Grade 2 spondylolisthesis of L5 on S1 associated with bilateral L5 par defects and Degenerative disc disease involving L5-S1 and bilateral moderate neural foraminal stenosis

Doctors in Dubai are recommending surgery since the pain is always focused in right leg and physiotherapy sessions failed to decrease the pain.

should I go for surgery?

Tammy

4 years ago

I woke this morning at 2am in lots of lower back pain on my left side and could hardly move. Went to the ER and they did x-rays. The doctor return to tell me that he found I have Spondylolisthesis 1L5/S1. Gave me pain meds and told me to follow- up with back specialist. Wondering what’s next?? The meds helped some but still very sore and pain is in hip and left leg…

Yvonne Mansfield

4 years ago

Dear
To whom it may concern
I am a 32 year old, mother of 2 small children. I recently received x-ray reports on my lumber spine region (AP& lateral) ” “A grade 2 spondylolisthesis is present at L5/S1, with bilateral pers interacticularis defects. There has been a resultant degenerative change at L/5/S1 level. The remaining lumbar discs appear normal.” ” It notes on my report that an orthopaedic referral is recommended. I am unsure as to how to precede with this knowledge and what concerns this will mean for me. I would be very appreciative of any information.
I suffer from all over joint pain, particularly on my right side (Knee), fatigue, lower back pain, I also suffer from incontinence when I exercise, numbness of lower extremities and consistent lack of mobility. It takes me more than an hour every morning to walk properly after I side shuffle up. I also experience sharp throbbing pains, which run from my elbow to the very top of my index finger/ring finger on my left arm mostly.
I am very worried about my health and what this will mean for me and my family in the future as I had x-rays taken in december 2007 which stated that I had a grade I spondylolisthesis.

admin

4 years ago

Dear Yvonne,

thanks for contacting me via my website. Where are you located? If you would like to see me in clinic so that we can discuss your symptoms and xray findings in more detail, my office is in Monterey, California. I would also be happy to give you a second opinion if you send a copy of your films to my assistant jennifer. 12 Upper ragsdale, Suite A, Monterey, CA 93940

Liz

2 years ago

Hi
A year ago a heavy bottle fell on my foot
I’ve had so many treatments plus just had
Scs surgery issue is since the bottle fell I can’t
Move my toes and have been diagnosed with
Crps now I had a ct scan showing issues from
L1/2 L2/3 L3/4 L5s1 moderate to severe
Would this be do to the bottle falling on my foot
A year ago and it’s all on my right side which its my right
Foot that had the fall ?
Thank you

Stephanie

2 years ago

I have been struggling with this pain for years now. I have gone through wearing a back brace to physical therapy. I have my good days and bad days. For the past month I have been feeling the same pain I felt in my lower back from this going towards the middle of my back. The pain is awful and is getting really hard for me to keep moving forward with my life. I am in college and working. I don’t want to go to the doctor because it seems like nothing has been working for me. Is it normal for the pain to be affecting the middle part of my back?

Carol Reinhart

2 years ago

I am a 69 year old woman diagnosed with L4 radiculopathy. Seems my L4 has completely disappeared from back xray. Can be upright for 10 min before pain and weakness levels force me to sit. Is there a way I can recover my life without surgery? I have an extreme PE history after a bad MVA and tibial plateau fracture ( 2 different occurrences) so my ortho is very hesitant. A rolling walker doesn’t really help. Is a wheelchair my only option? Still doing all PT exercises but both osteoarthritis and Bone spurring have contributed immensely to the problems I have walking, knees both bad.

Cynthia

2 years ago

I am 61 years old with a Grade 1 spondylolisthesis at L4/5 and an 8 mm slippage. I also have mild to moderate spinal stenosis and a 9 mm cyst at L3/4. Most of the time I have no pain as long as I don’t do anything. However, if I stand too long (~1 1/2 hours) or do cleaning or any kind of manual work, the pain is really bad. If I stop the activity when the pain starts, and do absolutely nothing, the pain goes away in a day. If I stop for the day but continue the next day, the sharp stabbing pain in my left lower back will go away in a few days. On average, it takes 1 -10 days for the pain to go away. I have no pain going down my legs.

Doctor has recommended Laminectomy and fusion of L3-4, 4-5. I have high BP and oral steroids make it jump off the charts so I’m not sure what injections would do to me.

Will this slippage get worse? I’m not sure I want a fusion but I just don’t know what to do. When the pain hits, it’s really bad and it greatly restricts my activities. My husband has had multiple back surgeries and he is living with chronic pain. This is a very hard decision and looking on the internet, I have read more negative than positive comments. I just don’t know what to do and I definitely don’t want to make the wrong decision.

Karen Sanchez

2 years ago

I am a fairly active senior, for the past couple months the sides of my calves and also my thighs muscles have been cramping. When I inquired via Google to hopefully find the answer, I was surprised when your site showed up because in 1978 I had spinal surgery to fuse my lower vertebrae per the diagnoses of spondolytheasis (sp?). I had a very good surgeon and I promised myself and him I would be jets King and horseback riding before the year was out. I did too. I was only 32at the time and I am now a very young appearing 70!

Although I did have a fall from a substantial height leaving me with a pin in my right femor and my hip required another pin as it was badly dislocated. Again I recovered quickly and only now feel pain when weather changes. My pain is muscular and I’m sure not caused from the pins.

My question is could the back. Fusion be causing the ache? Is it possible the fusion now cause this pain?

Christine

2 years ago

I have been diagnose with spondlolythesis in my early thirties and was’nt a candidate for surgery. Surgeon says my spine was too far gone for surgery. Now experiencing numbness in right front leg and right foot at times. I am incontent with my bladder and bowels. Sometimes I feel the urine run out of me when I stand or move to get up. I was wondering if since I was not a candidate for surgery, will I eventually become paralyzed from this.

SG-sliderSS1

Sohrab Gollogly, MD is a board-certified orthopedic surgeon and Fellowship-trained spine surgeon who also performs scientific research and participates in several volunteer surgical organizations.

Dr. Gollogly completed his undergraduate education in biology at Reed College in Portland, Ore. He earned his medical degree from the University of Washington School of Medicine.

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    12 Upper Ragsdale
    Monterey, CA 93940

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