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Spinal Stenosis

Sandeep Dhanyamraju MD
Medically reviewed by Sandeep Dhanyamraju
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Sandeep Dhanyamraju MD
Medically reviewed by Sandeep Dhanyamraju

Spinal stenosis is a chronic pathological process characterized by a decrease (narrowing) in the size of the spinal canal and intervertebral foramen due to the growth of bones and cartilage. According to the norms, the sagittal (anteroposterior) size of the spinal canal at the lumbar level is 15-25 mm, the transverse size is 26-30 mm. Further, these indicators are the “cauda equina” (bundle group of roots). Relative stenosis – reduction of the anteroposterior dimension to 12 mm. In this case, clinical manifestations may be completely absent. A decrease to 10 mm or less is called absolute stenosis of the spinal canal. It already has clinical signs.

The spinal canal protects the spinal cord, which is inside the vertebrae. The spinal cord and brain are the CNS (central nervous system) that regulates the functions of the human body. For the normal functioning of the spinal cord, the spinal canal mustn’t be damaged.

Spinal stenosis forms:

  • in front – the body of the vertebrae;
  • intervertebral discs;
  • behind and on both sides – the arches of the vertebrae (they are connected by a special biological yellow ligament).

Looking at it in cross-section, you can see that it can be either round or oval.

The spinal canal includes:

  • the spinal cord with paired nerve roots, which depart from it and go beyond this channel through their specific openings (they are surrounded by the dura mater);
  • loose and adipose connective tissue, which consists of nerves, arteries, and veins;

The spinal canal performs two main functions:

  • Conductor (sends and transmits a nerve impulse from the center of its location to the periphery, and then returns this signal)
  • Reflex (forms a response to all kinds of irritations from the nervous system).

Spinal stenosis is a fairly common, slowly progressive disease. With age, every person develops aging processes of the spine, which are manifested by degenerative processes. In a lonestarneurology, you can find detailed information about this disease.

Classification and symptoms of spinal stenosis

Classification and Symptoms of Spinal Stenosis


  • Central stenosis, when the lumen of the canal narrows towards the arch (from the body), the anteroposterior size decreases;
  • Lateral stenosis, in which the narrowing reaches 4 mm;
  • Combined stenosis with a combination of symptoms.

Spinal stenosis is relative when the diameter of the spinal canal is 10-12 mm. Treatment is conservative and has a good prognosis. In the absence of timely treatment, negative changes will increase.


Symptoms of lumbar spinal stenosis:

  • pains of an acute, chronic nature, starting in the lumbar region, passing along the leg to the foot;
  • lameness;
  • early fatigue when walking;
  • decreased reflexes of the lower extremities;
  • paralysis (paresis) of the lower limbs or decreased muscle strength;
  • muscle atrophy of the lower extremities;
  • violation of sensitivity in the groin, genitals, and legs (burning, numbness, tingling);
  • dysfunction of the bladder and anal sphincter;
  • thinning (weight loss) of the legs due to dystrophic pathologies;
  • erectile dysfunction in men.

Symptoms of cervical spinal stenosis:

  • pain in the occipital region, neck, and shoulder region;
  • a decrease in the strength of the muscles affected by the disease;
  • elements of sensitivity (numbness, tingling in the neck and shoulders);
  • violation of respiratory function and possible respiratory arrest;
  • below the level of the lesion, the development of paralysis, and (or) complete loss of sensitivity.

Symptoms of thoracic spinal canal stenosis:

  • pain in the chest area at the site of the lesion;
  • pain syndromes in the region of the heart;
  • the pain of the internal organs of the abdominal cavity;
  • the sensitivity of the skin in the abdomen and chest area may be impaired;
  • dysfunction of the pelvic organs.

Causes of spinal stenosis

Causes of Spinal Stenosis

Before starting the treatment of lumbar or cervical spine stenosis, you should find out what causes the onset and development of the disease.

A congenital or primary type of stenosis is formed during the intrauterine development of the human embryo. It happens in the period from 3 to 6 weeks of development. The genetic factor plays a role here. But absolute stenosis of the spinal canal can develop due to infectious and toxic factors affecting the fetus.

Also, the cause of congenital stenosis is:

  • Chondrodystrophy or achondroplasia (chronic), manifested in intrauterine bone growth disorders. In this case, the spinal canal narrows due to the shortening or thickening of the arches of the vertebrae and the fusion of the vertebrae.
  • Diastematomyelia. It is characterized by a bifurcation of the spinal cord, separation of the spinal canal by a septum (it consists of either bone or cartilaginous tissue).

Secondary spinal stenosis appears and develops in childhood or already in adulthood. This development may be due to the following reasons:

  • traumatic displacement of the vertebrae or intracanal hematomas;
  • changes in the intervertebral joints, which are manifested in the proliferation of bone tissues inside the spinal canal;
  • anatomical defect of the arch of the spine;
  • intervertebral hernia;
  • inflammation in ankylosing spondylitis (in this case, the capsules of the intervertebral joints thicken);
  • Forestier disease;
  • cysts and tumors that appear inside the spinal canal.

Regardless of the cause, treatment of spinal stenosis should begin when the disease is detected.

Risks and complications of spinal stenosis

Risks and Complications of Spinal Stenosis

Risk factors

There is a category of people who are most susceptible to the disease of absolute stenosis of the spinal canal at the level of the lumbar, chest, and neck. 

  • Mainly, elderly people suffer from this disease due to age-related changes and degenerative vertebral diseases. In the age group (50 years and older), this figure is 1.8-8%.
  • Acquired stenosis of the spinal canal occurs most often at the level l5 s1 and l4 l5 of the last stage of osteochondrosis of the spine when the bone tissue of the vertebral bodies and osteophytes is actively growing.


If you do not start the treatment of the lumbar, cervical, or thoracic spine stenosis timely, pathological manifestations of this disease are possible. Complications can occur if there are other spinal injuries (sports injury, fall from a height, etc.). In this case, there is an increase in the compression of the spinal cord. Hematomas, scars, fragments of the spine, and displaced vertebrae can put pressure on it.

The most serious complications are:

  1. Paralysis of the legs, stable paresis.
  2. Sexual dysfunctions.
  3. Dysfunction of the pelvic organs.
  4. Loss of sensitivity in the lower torso.

The rarest inflammatory processes occur in the nerve elements, membranes, and vertebrae because, after the operation of the stenosis of the spinal canal of the lumbar spine, strong antibiotics are used. It is not uncommon that the consequences after surgery for lumbar, cervical, and thoracic spine stenosis give more severe consequences than the disease itself.

Diagnosis of spinal stenosis

Diagnosis of Spinal Stenosis

Spinal stenosis is a pathology that the doctor may suspect even during the initial conversation with the patient. The neurosurgeon pays attention to the characteristic pain in the lumbar spine of the back, discomfort in the legs, and other symptoms described above. Initial contact with medical personnel is more often at the level of a general practitioner or family doctor. These specialists, having identified typical symptoms, refer the patient to a neurosurgeon.

In addition to collecting anamnesis and analyzing patient complaints, the following methods are used to diagnose the disease:

  1. Magnetic resonance imaging (MRI) of the spine. This method is a mandatory procedure that allows you to fully visualize the spinal canal and establish areas of compression of nerve fibers.
  2. Survey spondylography with functional tests in the anterior and lateral projection. This procedure is used for a comprehensive assessment of the state of the spinal column and its bone structures in dynamics.

The above methods are mandatory for establishing the localization of the pathological process and assessing the severity of the patient’s condition. For more accurate information, the neurosurgeon may also prescribe:

  • spine ultrasound;
  • spiral computed tomography (SCT);
  • blockade of intervertebral joints;
  • selective blockade of the roots of the spinal cord.

Also, the doctor prescribes a standard set of laboratory examination methods, which includes a general blood and urine test and a biochemical blood test.

Treatment of spinal stenosis

Treatment of Spinal Stenosis

Conservative treatment

In the absence of pronounced neurological changes, when the pain is only in the legs and lower back and seeking medical help is timely, it is possible to use conservative methods to treat spinal stenosis. These methods include:

  • anti-inflammatory drugs to eliminate pain and inflammation, reduce tissue swelling;
  • muscle relaxants to reduce muscle tension in the lumbar region;
  • medication blockade with intervertebral administration – hormonal drugs relieve pain at the site of its occurrence quickly and effectively;
  • vascular agents that improve blood flow in the affected vessels;
  • back massage sessions;
  • a diverse range of physiotherapy – exposure to currents, electrophoresis, magnetotherapy, mud treatment;
  • exercise therapy is a set of therapeutic exercises to improve health and reduce pain.

The complex use of all these techniques gives a positive result. The selection of a therapy program should be carried out separately in each case, taking into account the existing contraindications.


The purpose of the operation is to exclude compression of the roots of the spinal nerves. Large open and endoscopic surgeries are performed when tissue incisions are minimal.

The following techniques are most commonly used:

  • Decompression cervical laminectomy – expansion of the spinal canal by removing individual elements – the spinous process, part of the ligamentum flavum, and the vertebral arch. The method is traumatic.
  • Stabilizing surgery to enhance the supporting function of the spine – the application of metal braces after the expansion of the spinal canal.
  • Microsurgical decompression and using fixation systems to strengthen the spinal column after elimination of stenosis; the function of flexion and extension of the spine is preserved.
  • If the source of spinal stenosis is a herniated disc, then a microdiscectomy is performed, possibly in combination with a cervical laminectomy.

Usually, the use of surgical methods ensures the patient’s recovery. For the best results, it is important to behave correctly in the postoperative period, follow the recommendations of doctors and carry out rehabilitation measures.

Prevention of spinal stenosis

Prevention of Spinal Stenosis

Recommendations for the prevention of spinal stenosis are reduced to the well-known elementary advice for maintaining a healthy back.

1. Good posture since childhood

Poor posture affects early impairment of the musculoskeletal system. Modern children grow up fast. Muscle mass does not keep pace with the growth of the skeleton; therefore, the muscle frame in children is underdeveloped and bone structures are vulnerable. Children need to be given increased attention from an early age. From childhood, children must be taught to keep their backs straight. In the future, parents must correctly organize the child’s workplace:

  • you need to sit on a chair with a back;
  • legs need supporting;
  • the seat should be neither too hard nor too soft;
  • furniture should be matched to height.

It is necessary to organize the perfect resting place to prevent spinal stenosis:

  • sleeping on an orthopedic pillow and mattress;
  • while watching TV, you should not lie down, due to overstrain of certain muscles, blood flow in the cervical and lumbar spine is disturbed;
  • the center of the screen should be projected to the middle of the bridge of the nose.

There are many effective posture exercises – walking in a straight line with a book on your head, walking with a stick behind your back, and balance exercises. Choreography, dancing, equestrian sports, gymnastics help the optimal position of the spine. Also, backpacks shouldn’t be heavy.

2. Knowledge of the laws of ergonomics

Everyone should know the rules of controlling their body. 

  • Any weight should be lifted not with a jerk but carefully with an even back, gently straightening the extended lower limbs. 
  • The muscles of the legs should work, not the spine. 
  • If you have to carry a load of more than 5 kg, it must be distributed evenly between both hands. It is better to replace the bag with a backpack.

3. Sleep well on the right surface in the correct posture

  • You need to sleep on a high-quality mattress that prevents the body from sagging. Too hard a mattress forcibly straightens the natural curves of the spine. 
  • The pillow should be equal to the shoulder height. 
  • The fetal position (lying on its side with the knees pulled up to the abdomen) is the optimal sleeping position for the spine. 
  • Doctors do not recommend sleeping on the stomach.

4. Regular physical activity

Professional sports are harmful to health – this is the opinion of experts. Extreme stress quickly leads to the deterioration of the human body and spinal stenosis. Muscle mass is growing so actively that the heart does not have time to provide it with nutrition. But health-improving gymnastics, classes in fitness clubs and sports complexes bring undoubted benefits if the choice of exercise is approached thoughtfully.

  • Daily exercise protects the spine from premature wear and tear. It is advisable to perform elementary exercises regularly for 30 minutes a day.
  • You should visit the pool, do water aerobics, yoga, and include stretching exercises in your workout.
  •  Light dumbbell exercises and oriental health-improving gymnastics are also useful. Before training, you must remember about the mandatory warming up of the muscles. A strong and well-formed muscle corset supports the spine and the entire body. In addition, physical activity helps to stay slim, which means it protects the spine from being overweight.
  •  But before choosing which type of exercise is best to do, you need to consult your doctor.

5. Balanced diet

It is recommended to limit the following in your diet:

  • foods with added preservatives,
  • processed meat in the form of sausages, sausages, bacon, etc.
  • smoked meats of any kind,
  • products with a long shelf-life;
  • foods containing refined sugar;
  • alcohol and carbonated drinks;
  • canned juice.

Comprehensive diagnosis and treatment will improve the patient’s condition and return them to good health.


  • What kind of disease can cause pains of an acute, chronic nature, starting in the lumbar region, passing along the leg to the foot?

Spinal stenosis is a chronic pathological process characterized by a decrease (narrowing) in the size of the spinal canal and intervertebral foramen due to the growth of bones and cartilage. 

  • Can spinal stenosis be cured?

If the spinal canal is less than 1 cm, conservative treatment will not help. Surgery is required in this case of neurological syndromes and absolute stenosis detection. The extreme degree of the disease is when the canal is narrowed to 3 mm – lateral stenosis.

  • Can spinal stenosis be treated without surgery?

In the initial stages of the degenerative cascade, the symptoms of spinal stenosis may not be disturbing. However, if the situation worsens, then it is no longer possible to cure the disease without surgery. Removal of stenosis is possible only by surgery.

  • What kind of stenosis is dangerous?

Cervical absolute stenosis is the most dangerous since there is a possibility of not the only disability of the patient but death. This is a rare pathology that manifests itself as chest pain, disorders of the genitourinary system, intestines, numbness of the arms and shoulder girdle.

  • What happens if the spinal stenosis is not treated?

Spinal stenosis can compress the spinal cord and nerve roots. The lumbar spine is more often affected, less often, the cervical and thoracic. Lack of timely diagnosis and treatment can lead to disruption of the work of internal organs and even disability.

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Edward Medina
Edward Medina
15:34 30 Jun 22
Just such an amazing staff that makes you feel like part of their family. I’ve been going there for over 5 years now... and each visit I get the very best care and treatments that I have ever received in the 20+ years that I’ve been dealing with severe debilitating migraines. Since i started seeing them the number of my migraines has dropped from 15-20 a month to 2-3 every 3 month. I highly recommend them …they will change your life!read more
Daneisha Johnson
Daneisha Johnson
22:20 19 May 22
Dr. Askari was very kind and explained everything so I could understand. The other staff were nice as well. I would... have gave 5 stars but I was a little taken aback when I checked in and had to pay 600.00 upfront. I think that should have been discussed in a appointment confirmation call or email just so I could have been more
Jean Cooper
Jean Cooper
16:54 29 Apr 22
I love the office staff they are friendly and very helpful. Dr. JODIE is very caring and understanding to your needs... and wants to help you. I will go back. would recommend Dr. Dr. Jodie to other Patients in a heart beat. The team works well more
Linda M
Linda M
19:40 02 Apr 22
I was obviously stressed, needing to see a neurologist. The staff was so patient and Dr. Ansari was so kind. At one... point he told me to relax, we have time, when I was relaying my history of my condition. That helped ease my stress. I have seen 3 other neurologists and he was the only one who performed any assessment tests on my cognitive and physical skills. At one point I couldn't complete two assessments and got upset and cried. I was told, it's OK. That's why you're here. I was truly impressed, and super pleased with the whole experience!read more
Leslie Durham
Leslie Durham
15:05 01 Apr 22
I've been coming here for about 5 years. The staff are ALWAYS friendly and knowledgeable. The Doctors are the absolute... best!! Jodie Moore is always in such a great mood which is a plus when you are already stressed. Highly recommendedread more
Monica Del Bosque
Monica Del Bosque
14:13 25 Mar 22
Since my first post my thoughts have changed here. It's unfortunate. My doctor and PA were great, but the office staff... is horrible. They never call you back when they say they will, they misinform you, they cause you too much stress wondering what's going on, they don't keep you posted. They never answer the phone. At this point I've left four messages in the last week, and I have sent three messages. Twice from their portal and one direct email. No response. My appointment is on Monday morning at 8:30am, no confirmation on my insurance and what's going on. What the heck is going on, this is ridiculous!I've given up... the stress her office staff has put me through is just not worth it. You can do so much better, please clean house, either change out your office staff, or find a way for them to be more efficient please. You have to do something. This is not how you want to run your practice. It leaves a very bad impression on your more
Ron Buckholz
Ron Buckholz
23:32 23 Mar 22
I was actually pleasantly surprised with this visit! It took me a long time to get the appointment scheduled because no... one answers your phones EVER! After a month, I finally got in, and your staff was warm, friendly, and I was totally impressed! I feel like you will take care of my needs!read more
Steve Nabavi
Steve Nabavi
16:28 16 Mar 22
It was a nice visit. Happy staff doing all they can do to comfort the patients in a very calming environment. You ask... me they are earned a big gold star on the fridge. My only complaint they didn't give me any more
Katie Lewis
Katie Lewis
16:10 10 Feb 22
Had very positive appointments with Jodie and Dr. Sheth for my migraine care. Jodie was so fast with the injections and... has so much valuable info. I started to feel light headed during checkout and the staff was SO helpful—giving me a chair, water, and taking me into a private room until I felt better. Highly recommend this practice for migraine patients, they know what they’re doing!!read more
Joshua Martinez
Joshua Martinez
16:02 10 Dec 21
I was scheduled to be checked and just want to say that the staff was fantastic. They were kind and helpful. I was... asked many questions related to what was going on and not once did I feel as though I was being brushed off. The front desk staff was especially great in assisting me. I'm scheduled to go back for a mri and am glad that I'll be going more
Isabel Ivy
Isabel Ivy
21:42 03 Nov 21
I had such a good experience with Lone Star Neurology, Brent my MRI Tech was so awesome and made sure I was very... comfortable during the appointment. He gave me ear plugs, a pillow, leg support and blanket, easiest MRI ever lol 🤣 My 72 hour EEG nurse Amanda was also so awesome. She made sure I was take care of over the 3 days and took her time with the electrodes to make sure it was comfortable for me! Paige was also a huge help in answering all my questions when it came to my test results, and letting me know her honest opinions about how I should go forth with my more
Leslie Luce
Leslie Luce
17:37 20 Oct 21
The professionalism and want to help attitude of this office was present from the moment I contacted them. The follow... up and follow through as well as their willingness to find a way to schedule my dad was above and beyond. We visited two offices in the same day with the same experience. I am appreciative of this—we spend a lot of time with doctors and this was top notch start to more
robert Parker
robert Parker
16:38 16 Apr 21
I love going to this office. The staff is friendly and helpful. The doctor is great. I am getting the best... neurological tests and treatment I have ever had. The only reason I did not give them a 5 star rating is because it is impossible to reach a live person at the office to reschedule appointments. Every time I have tried to get through to the office it says all people are busy and I am sent to a voicemail. If they could get their phone answering fixed, I would give them a strong 5 more
MaryAnn Hornbaker
MaryAnn Hornbaker
00:26 25 Feb 21
Dr. Harney is an excellent Dr. I found him friendly , personable and thorough. I evidently am an unusual case. ... Therefore he spent a Hugh amount of time educating me. He even gave me literature to further explain my condition and how to follow up. This is something you rarely get from your doctors. So I am more than please with my doctor and his more
Roger Arguello
Roger Arguello
03:05 29 Jan 21
Always courteous, professional. The staff is very friendly and always work with you to find the best appointment time.... The care team has been great. Always taking the time to listen to your concerns and to find the best more
Margaret Rowland
Margaret Rowland
01:12 27 Jan 21
I have been a patient at Lone Star Neurology for several years. Now both my adult daughters also are patients there. I... love Jodie. She is always so prompt whether it is a teleamed call are a visit in the office. She takes the time to explain everything to me and answers all my questions. I am so blessed to have Jodie as my more
Susan Miller
Susan Miller
03:01 13 Jan 21
My husband had an accident 5 years ago and Lone Star Neurology has been such a blessing to us with my husbands care.... Jodie Moore is his provider and she is amazing! Jodie is very knowledgeable, caring, and thorough. She takes her time with you, making sure your needs are met and she is happy to answer any questions you may have. Lone Star Neurology’s patients are very lucky to have Jodie providing their care. Thank you Lone Star Neurology and especially Jodie for everything you have done for us. Jodie, you are the best!read more
Windalyn C
Windalyn C
01:32 09 Jan 21
Jodie is wonderful. She is very caring and knowledgeable. I have been to over a dozen neurologists, and none were able... to help me as much as they have here. Thanks!read more
Katie Kordel
Katie Kordel
00:40 09 Jan 21
Jodi Moore, nurse practitioner, is amazing. I have suffered from frequent, debilitating headaches for almost 20 years.... She has provided the best proactive and responsive care I have ever received. My quality of life has been greatly improved by her caring approach and tenacity in finding more
Ellie Natsis
Ellie Natsis
15:41 07 Jan 21
I have had the best experience at this neurologist's office! For over a year I have been receiving iv treatments here... each month and my nurse, Bobbie is beyond wonderful!! She's so attentive, knowledgeable, caring, and detail oriented. She makes an otherwise uncomfortable experience much more pleasant and definitely puts me at ease! She also helps me with my insurance,ordering this specialty medication and dealing with the ordering process which is no easy feat.Needless to say, she goes above a beyond in every way and I'm so grateful to this office and to Bobbie for all they do for me!read more
Matt Morris
Matt Morris
15:39 07 Jan 21
Let me start by saying that I have been coming here for years. Due to my autoimmune disease, I am in this office... once every three weeks for multiple hours at a time. The office is very clean and the staff very friendly. My only complaint would be there communication via phone. They aren't the best at responding if you leave a voicemail and expect a call back. I understand that this is prob just due to the sheer number of alls they receive daily. What I can say I like the best about the office are the people. Bobby who handles my infusions is great. I never have any issues with her setting up my infusions. She is very quick to reply to messages sent via text and if she were to leave then my whole opinion of the office may change. I also enjoy people like Matt, Lauren, and Jodi. I appreciate all that they do for me and without this team I'm not sure I would be as happy as I am to visit the office as frequently as I have to. Please ensure that these folks are recognized as they are what makes my visit to this office so tolerable :).read more
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