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23 February 2023: Review Articles  

Presentation, Diagnosis, and Management of Lower Back Pain Associated with Spinal Stenosis: A Narrative Review

Dawid Sobański12ADEF*, Rafał Staszkiewicz13ADEF, Magdalena Stachura24EF, Marcin Gadzieliński3EF, Beniamin Oskar Grabarek13AEF

DOI: 10.12659/MSM.939237

Med Sci Monit 2023; 29:e939237



ABSTRACT: Lower back pain (LBP) is an extremely common symptom experienced by people of all ages and is also one of the most frequent causes of disability worldwide. This article aims to review the presentation, diagnosis, and management of lower back pain associated with spinal stenosis. The paper we prepared was classified as a “literature narrative review.” Nonetheless, when searching for manuscripts included in our work and reviewing them critically, we concentrated on the keywords: “lower back pain”, “lumbar spine stenosis”, “diagnostic”, “rehabilitation”, “neurosurgery”, “spine”, and “elderly”. The incidence of chronic lower back pain (CLBP) increases linearly starting with the third decade of life until 60 years old, and it more often affects women. The course of non-specific LBP above all depends on factors not connected with the spine, which include psychological, behavioral, and social factors, determined by the way the condition is perceived by the patient the environment. Lumbar spine stenosis (LSS) is an age-related process of degeneration of the intervertebral discs, ligamentum flavum, and facet joints, which results in narrowing of the space around the neurovascular structures of the spine. Diagnosis of spinal pain syndromes includes radiography (RTG), computed tomography (CT), and magnetic resonance imaging (MRI). Based on the results of imaging studies, neurological examination, and the severity of the disease, treatment can consist of analgesics and rehabilitation, or, when conservative methods are insufficient, surgical treatment is indicated.

Keywords: Constriction, Pathologic, Low Back Pain, musculoskeletal pain, Radiography, Humans, Female, Middle Aged, Spinal Stenosis, Lumbar Vertebrae, intervertebral disc


Lower back pain (LBP) is an extremely common symptom, which is experienced by people of all ages and is also one of the most frequent reasons for disability in the world [1,2]. The most noticeable increase in disabilities connected with LBP has been in countries where per capita income is low or average, such as Asia, Africa, and the Middle East, where the health and social care systems are significantly burdened and underfinanced, and their main priority is combating infectious diseases [1–3]. The growing incidence of LBP creates an economic burden because it is connected with employee absence and decreased company productivity [4]. For most patients, it is impossible to precisely define the source of LBP [4]. Non-specific LBP constitutes about 90–95% of all cases [4]. In approximately three-fourths of LBP patients, an improvement in their condition is measured in an increase in pain and the degree of disability seen within 1 month, but LBP is a chronic condition in about 25% of cases [4].

The incidence of chronic lower back pain (CLBP) increases linearly starting with the third decade of life until 60 years old, and it more often affects women [5,6]. The course of non-specific LBP above all depends on factors not connected with the spine, including psychological, behavioral, and social factors, determined by the way the condition is perceived by the patient and the surroundings [5,6].

Lumbar spine stenosis (LSS) is an age-related process of degeneration of the intervertebral discs, ligamentum flavum, and facet joints, which results in narrowing of the space around the neurovascular structures of the spine [7]. It is estimated that in the United States of America (USA) LSS occurs in more than 200 000 people and is the most common reason for neurosurgical spine surgeries of the lumbar region for people 65 years old and older [7].

The paper we prepared was classified as a “literature narrative review”, and we concentrated on the keywords: “lower back pain”, “lumbar spine stenosis”, “diagnostic”, “rehabilitation”, “neurosurgery”, “spine”, and “elderly”. Therefore, this article aims to review the presentation, diagnosis, and management of lower back pain associated with spinal stenosis.

Causes of Pain Syndromes of the Lumbar Spine

Imaging and clinical condition tests often cannot determine the exact reason for the pain syndromes of the lumbar spine region [8]. For example, Boden et al found that even though imaging diagnosis showed degenerative changes of the spine, the study subjects did not have any painful conditions of the lumbar spine [9]. On the other hand, Żytkowski found that only 15% of the diagnoses regarding spinal pain were then confirmed by intraoperative tests and autopsy [10].

The available literature shows that pain syndromes are caused by mechanical factors in about 90% of cases, while specific and non-specific inflammation, rheumatic processes, oncologic diseases, and pathologies of the nerve roots are the causes in the remaining 10% [11–13]. Table 1 shows the causes of pain in the lumbar region of the spine. On the other hand, using the location of pain and the type of pathology as the criteria for division, we can distinguish 4 categories of spinal pain, as shown in Table 2 [14]. However, when taking into account structures, which may be the potential source of back pain, we can distinguish 5 origins of pain in the lumbar region of the spine, as shown in Table 3 [15].

General Characteristics of Degenerative Stenosis of the Lumbar Region of the Spine

The spinal canal (according to Spivak) is divided sagittally into 3 regions: 1) the central zone; 2) the intermediate zone (more appropriately paracentral) of the lateral recess, and 3) the zone of the pedicle of the vertebral arch [16]. Another division is the transversal one, also into 3 anatomic regions: 1) pedicle level; 2) intermediate level (vertebral body), and 3) disc level [17,18].

Degenerative stenosis of the lumbar spine is almost always connected with hypertrophy and the creation of osteophytes in the area of the intervertebral joints [19,20]. Degeneration of the intervertebral joints is causes instability and impaired mobility [19–21].

Overloading and micro-injuries lead to hypertrophy of the spinal joints, significantly contributing to narrowing of the spinal canal [22]. This process involves both the anterior and posterior edges of the joint, as well as the non-joint part and the posterior joint surface [22]. In addition, it also involves the joint capsule, the yellow ligament, and the supraspinous ligament [22]. Over time, the intervertebral disc undergoes degeneration and there is a disappearance of segmental mobility and a narrowing of the intervertebral space, which causes shortening of the spinal canal [22]. There is a protrusion of the intervertebral disc, which eventually undergoes calcification and osteophytes, which cover the intervertebral disc [22]. As a result of the narrowing of intervertebral space, during the shortening of the spinal canal, the yellow ligaments are bent in the direction of the spinal canal, and they undergo hypertrophy and calcification [22].

Pathomechanism of Pain Syndromes of the Spine

An important work in understanding the etiopathogenesis of pain syndromes of the lumbar region of the spine was published by Kuslich et al, who described 193 cases of procedures performed on the lumbar region of the spine due to intervertebral disc (IVD) herniation or stenosis or the co-occurrence of both causes. Prior to administering anesthesia, each of the uncovered structures was stimulated and measured, and the pain response was noted [23], as shown in Table 4. In the summary section, the authors concluded that muscle tension is not a cause of pain in the lumbar region of the spine, but rather is an impulse reaction to pain [23]. This study undermined the observations made by Wyke, who believed that IVD is not a source of pain, since it does not contain nerve endings [24]. The findings of Ksulish et al [23] were later confirmed by subsequent research, which showed penetration of the free nerve endings into the damaged IVD after its mechanical damage, as well as the invasion of free nerve endings into the separated free part of the IVD (sequestrum) [25].

Sensory dysfunctions, paresthesias, lack of tendon reflexes, weakening of muscle strength, and sphincter dysfunctions are syndromes of irritation of the root nerves or the cauda equina [26,27].

They may occur together with the pain or each may be isolated. They are present at an advanced stage of the disease and they generally accompany a massive narrowing of the spinal canal or the intervertebral openings [28,29]. These symptoms are radicular in nature, but in the case of multi-layer changes or a high degree of central narrowing, they may not be obvious. Dysfunctions of the sphincters are a very rare symptom of extreme narrowing of the lumbar region, always connected with other symptoms [29,30]. The incidence of radicular pain or “neurological” symptoms allows for the determination of a potential level of damage to the cauda equina or part of the root nerve. The incidence of local pain in the lumbar spine, which is potentially somatically radiating, makes any attempts to determine the level of damage impossible [28–30].

Clinical Symptoms for Patients with Stenosis of the Lumbar Region of the Spine

Symptoms for patients with congenital stenosis of the lumbar region of the spine manifest quite early, often at the age of 30 or 40 years old, while acquired stenoses manifest themselves as radiculopathy and claudication, usually after the age of 50 [31–33]. Symptoms often appear on one side, and then later affect both sides. Typically, neurogenic claudication begins bilaterally and is characterized by pain in the lower limbs, numbness, tingling, and reduced muscle strength [31–33]. Neurogenic claudication increases while standing and walking and decreases while sitting and lying down. Although patients cannot walk properly, they can travel relatively comfortably while seated [31–33]. Patients with central stenosis and those with lateral recess stenosis have resting pain and night pain, as well as pain while sneezing [31,33].

Central stenosis is often accompanied by lateral recess stenosis. In a neurological study, 60% of the patients with central stenosis and 43% with mixed stenosis exhibited Lasegue’s syndrome and a reverse Lasegue’s syndrome [33]. The mechanics, motor activity, reactions, and sensation most often reflect the level or levels of pathology. However, many patients either do not experience neurological symptoms or these symptoms are very slight. However, a common symptom of stenosis of the lumbar region of the spine is chronic dysfunction of the urinary bladder [34].

In studies done on animals, it was concluded that constant pressure applied to the nerve elements causes neurological degradation and loss of potential induced in the lower limbs [34]. This is followed by atrophy and demyelination caused by direct pressure onto the nerve roots and the shrinking and decrease of flow in the vessels that supply the nerve roots [34].

Radiculopathy and neurogenic claudication connected with stenosis of the vertebral canal are attributed both to direct and indirect pressure as a result of vascular insufficiency, which leads to ischemia of the nerve elements [35]. Standing and walking temporarily increases spine lordosis, causing stenosis by yellow ligaments bulging out into the central canal and lateral recesses, which increases the symptoms [36]. On the other hand, sitting and lying down decreases lordosis, opening up the vertebral canal, and increasing blood flow, as a result of which symptoms decrease [35,36]. The anthropoid position is characteristic of patients with neurogenic claudication, leaning forwards, decreases lumbar lordosis, and the pressure on the yellow ligaments and joint surfaces [35,36].

Differentiation in Degenerative Stenosis of the Lumbar Spine

Lumbar stenosis manifests itself with neurogenic claudication, which should be differentiated from vascular claudication [37]. Neurogenic claudication is a lateral or bilateral pain of the buttocks, hips, and thighs, especially while standing and sitting (strongly variable), while the pain decreases when the position is changed to sitting or lying down [37], and relief comes very quickly. In vascular claudication, limb pain is connected with muscular ischemia as a result of arteriosclerosis [37]. As opposed to vascular claudication, neurogenic claudication is induced by ischemia of the spinal nerve root, whose vessels are compressed by the surrounding structures [37]. Neurogenic claudication is very specific for lumbar stenosis [38].

Symptoms of trochanteric bursitis are similar to the symptoms of lumbar stenosis [39]. They generally include intermittent pain in the lateral part of the hip, which radiates to the lateral or dorsal part of the thigh [39]. Similarly to neurogenic claudication, it is experienced while standing and sitting, but the pain on the affected side does not recede while lying down [39]. The pain increases while moving in the area of the hip joint, especially in external rotation (positive Patrick test) [40]. Treating trochanteric bursitis is based on using non-steroid anti-inflammatory drugs, local steroid injections, and anesthetic drugs, using manual therapy (muscle stretching), as well as using ice compresses [40]. Prolapse of the nucleus pulposus often accompanies degenerative stenosis of the lumbar spine, and spondylolisthesis [40]. Mediolateral prolapse causes pressure on the dural sac and the nerve roots found within. Lateral prolapse causes a narrowing of the lateral recess and direct pressure on the nerve root [40]. Lateral hernia of the nucleus pulposus occurs in 7–12% of all disc hernias. Far-lateral prolapse of the nucleus pulpous causes pressure on the nerve root in the area of the pedicle of the arch [41,42].

The lumbar region of the spine, especially on the L4/L5 level, is predisposed to spondylolisthesis (the joint surfaces are placed more sagittally than coronally) [43]. The advancing dislocation leads to constriction of the cauda equina and nerve roots [43]. The disease most often affects middle-aged women at an average age of approximately 67 years [43]. Degenerative spondylolisthesis most often occurs on level L4/L5 and then on levels L3/L4, L2/L3, and L5/S1 [43].

Patients with diffuse back or lower-limb pain may suffer from cervical spinal stenosis or thoracic spinal stenosis [44]. However, in elderly patients with stenosis, neurological examination can determine that the symptoms are cephalic [44].

Synovial cyst is a rare pathology, clinically described in 1968, and its etiology is unknown [45]. It develops from the elements of the intervertebral joint, or less commonly the yellow ligament. Surgical treatment is the most common treatment [45]. Ossification of the yellow ligament can be a significant factor in the development of lumbar stenosis. Due to growth factors, the yellow ligament is induced to proliferate and it undergoes hypertrophy and then calcium saturation, and as a result, ossification [44]. Amyloidosis may also contribute to lumbar stenosis, as amyloid deposits were found in a hypertrophied yellow ligament [45].

Patients with diabetic neuropathy, diabetic amyotrophy, or angiopathy may be insufficiently diagnosed and undergo lumbar stenosis surgery [46]. Clinically, a patient with diabetes differs from a patient with lumbar stenosis due to the sudden appearance of pain, especially at night, a burning sensation when urinating, and no improvement as the body position changes [46]. Those suffering from diabetes with lumbar stenosis who have undergone decompression surgery are often less pleased after the surgery, while post-surgical treatment is longer [46].

Tumors in the cervical, thoracic, or lumbar region (especially the cauda equina and conus medullaris) may cause symptoms similar to the symptoms of lumbar stenosis [47,48].

Radiological Diagnosis of Patients with Degenerative Lumbar Stenosis of the Spine


With the aid of radiography (RTG), the outline of the vertebra and the lumbar spine, as well as its curvature, may be determined [62,63]. Dynamic X-ray testing allows us to determine the hypermobility and instability, which manifests itself in a more than 4 mm dislocation and more than 10 to 12 degrees of the angular fold [62,63]. X-ray imaging does not provide any significant information about lumbar stenosis [62,63]. Plain film in anterior-posterior (AP) and lateral projections may be useful, especially when spondylolisthesis is suspected [62,63]. Spot film X-rays of the lumbar spine in a lateral projection allow for an initial estimate of the degree of narrowing of the intervertebral space, facet arthrosis, spine stability, or narrowing of the intervertebral openings [62,63]. It is also possible to diagnose the hypertrophic process, especially pathological fracture. Currently, X-rays in an AP and lateral projections of the whole spine along with the hip joints are predominantly used for evaluation of frontal and sagittal balance [64].


Myelography can show constrictions of the contrast medium, with partial or complete blocking of the flow [65]. This test may be difficult to conduct due to low flow of cerebrospinal fluid and a thick bundle of nerve roots. Myelography is performed in a very few selected cases [65].


Computed tomography (CT) shows the characteristic shape of the spinal canal, which resembles a 3-leaf clover. CT allows for evaluation of the A-P dimension of the spina canal, hypertrophic yellow ligaments, and intervertebral joints, as well as protrusions of the intervertebral discs [66]. CT of the spine supplemented with 2 and 3-dimensional reconstructions allows for an exact diagnosis of recurrent stenosis, dislocation of the nucleus pulposus, fracture, and ossification of the posterior longitudinal ligament and yellow ligament [66]. Three-dimensional CT or CT myelography produce images of each axis of the spinal canal, and evaluation of the lateral and far-lateral regions [66]. Radiological computed tomography is especially useful in the diagnosis of skeletal changes as a supplementary test in the case of diagnostic ambiguities [67].


Magnetic resonance imaging (MRI) is a test that better displays the soft tissue and enables the differentiation between scar and disc, while also showing tumors, demyelinating diseases, and infections [68]. An MRI shows pressure on the nerve element and a loss of signal of the cerebrospinal fluid [68]. An MRI also allows imaging of the soft tissues of the spinal canal, especially the nerve structures, and shows damage to the discs and intervertebral joints, yellow ligament hypertrophy, and presence of synovial cysts [68], which is why it is highly recommended for diagnosis of spinal canal narrowing and intervertebral openings [68,69]. MRI should always be carried out in case of suspicion of cancerous and inflammatory changes [70].

Pharmacotherapy, Rehabilitation, and Surgical Treatment of Patients with Degenerative Lumbar Spine Stenosis


The introduction of non-steroid anti-inflammatory drugs brings relief to pain caused by inflammation of the spinal joints [71]. On the other hand, in the case of symptomatic central lumbar stenosis, using non-steroid anti-inflammatory drugs, opioids, or non-opioid painkillers, myorelaxants, antidepressants, or tranquilizers yields little benefit in reducing the symptoms of cauda equina claudication [71]. Steroids administered orally or in epidural injections are effective, but they can only be taken for a limited amount of time [71,72].

In the treatment of chronic and neuropathic pain, anticonvulsants such as gabapentin and carbamazepine have had a positive effect [73]. Their multi-factor functioning mechanism includes reducing the experience of pain, increasing the pain threshold, and improving sleep [73]. These drugs should not be used in treating acute pain [73]. Tricyclic antidepressants (eg, amitriptyline) are also used in treating neuropathic pain; however, adverse effects limit their use. Currently, the most often used drug is gabapentin [73].

Opioid drugs are very strong painkillers. Tramadol in combination with paracetamol is most commonly used [74]. Using other strong opioid drugs to treat pain in degenerative spine disease is very limited and are commonly used in treatment of post-surgical pain [74].

Myorelaxants are often used to increase the painkilling activity of non-steroidal anti-inflammatory drugs or painkillers [75]. Typically, they are administered before going to sleep, taking advantage of their slight sedative effect [75].

Selective blocking of spinal structures with the use of painkillers (lidocaine or bupivacaine) and long-acting steroid drugs are used in pain treatment, especially for patients who should not be surgically treated [76]. Injections may be used to treat pain from the facet joints, sacroiliac joints, or intervertebral discs [76]. Furthermore, it is possible to block the nerve roots or perform injections into the epidural space [76]. The effectiveness of the above-mentioned method is estimated at 52–100%, with the highest effectiveness (75–100% in limiting pain in the facet joints [77].

Rehabilitation Treatment of Patients with Degenerative Lumbar Spine Stenosis


Surgical procedures enable faster alleviation of symptoms than with behavioral treatment and bring more long-term benefits [90]. From a long-term perspective, surgical treatment is also cheaper than behavioral treatment [90].

Surgical procedures used for degenerative disease of the lumbar spine must be divided into procedures that retain motion as well as surgeries with stiffening that lead to spondylodesis [91]. All may be performed as a single-level or multi-level procedure [91].

Surgical treatment of lumbar stenosis is based on decompression of nerve elements. To properly decompress the nerve elements, decompressive laminectomy is used, which removes the vertebral arch and the yellow ligament and broadens the root canal [36]. This type of treatment is highly effective and decreases the pain that is typical for lumbar stenosis [36]. It is not necessary to remove the skeletal abdominal osteophytes or the calcified protrusions of the intervertebral discs [36]. After surgical treatment, physical fitness is restored and pain tolerance while walking and standing is increased [36]. However, laminectomy does not decrease pain connected with inflammation of the spinal joints and instability [36]. When the spinal joints or the disc space are damaged, the pain resulting from inflammation of the intervertebral joints or instability can increase [36].

In addition to decompression, it may sometimes be necessary to remove the prolapsed nucleus pulposus [92]. Many surgeons, apart from performing decompressions, also perform fusions, which yield the worst results among the oldest patients [92]. Sometime after the surgery, there are both back and limb pain, as well as neurological deficits. Second lumbar stenosis yields worse results, and patients have better treatment results after 1 surgery than after 2 [93,94]. The frequency of repeated decompression is 9.3–28%. For every 100 patients, 16 have experienced recurrent stenosis on the operated level or higher [93,94]. The longer the observation time after the original decompressive laminectomy, the higher the percentage of repeated surgeries [93,94]. Posterolateral stabilization is recommended for patients with lumbar stenosis with coexisting spondylolisthesis requiring decompression [94]. Transpedicular stabilization in addition to posterolateral stabilization may be considered in stenosis and spondylolisthesis if there is preoperative instability or kyphosis on the level of the spondylolisthesis or if there is also iatrogenic instability [94]. Stability may strengthen degeneration in neighboring levels and thus is only recommended on the level of the spondylolisthesis [94].

Younger patients who experience instability after surgery require stability [95]. For older patients, stability is often associated with a higher mortality rate and more complications. Instability after lumbar stenosis surgery via laminectomy seldom requires stabilization [95]. Decompressed of more levels is associated with higher risk of slippage [95].

It is estimated that approximately 5% of patients who have undergone laminectomy require stabilization [96]. Lumbar instability after decompressive laminectomy is quite rare (1%) [96]. Fusion is rarely needed in subluxation and degenerative stenosis. Stability is maintained when 50–66% of the intervertebral joint remains and when the disc space remains intact [96]. Younger and more active patients are more susceptible to instability. Post-surgical instability is verified by functional X-ray images of the lumbosacral spine before and after surgery [96].

Posterolateral stabilization is not recommended for patients with lumbar stenosis after decompressive surgery unless there is evident spondylolisthesis and intraoperative facetectomy [97]. Posterolateral stabilization is recommended for patients with lumbar instability, while transpedicular stabilization is not recommended in combination with posterolateral stabilization [97]. Table 5 summarizes the surgical procedures that allow patients to retain spinal motion on the operated levels or that result in stiffening and spondylodesis [91].

Future Directions

Because of the multifactorial nature of pain and the inability to determine the primary cause of low back pain syndromes based on imaging studies and clinical conditions, including those in the course of spinal canal stenosis, as well as the physical, psychological, and social consequences of LSS, it is necessary to develop a holistic, multidisciplinary approach to patients and their disease [66]. The diagnostic and therapeutic process should include the performance of imaging studies, a neurological examination, a thorough interview with the patient, and provision of pharmaceutical care, as well as care from a physiotherapist, neurologist, orthopedist, or neurosurgeon/neuro-orthopedist [98]. There is also need for psychological support [98]. Only when specialists in various fields jointly assess the patient’s condition is it possible to establish a treatment regimen tailored to each patient, which is part of the trend of personalized medicine [98]. It is also possible that, in addition to the traditionally accepted methods of treatment, the use of “unconventional” methods of treatment, such as acupuncture, herbalism, and folk medicine, should be thoroughly investigated, adding these techniques to the overall arsenal of possibilities [99]. It is also important to establish a registry of patients with LBP or LSS at the local and national, and perhaps international, levels to record and analyze the outcomes of patients at all stages of care, taking into account the various treatment methods, to better assess the effectiveness of various treatment options [100]. An interesting option is to use machine learning to create diagnostic and therapeutic algorithms in patients with LBP or LSS [100].


Back pain is becoming an increasingly common problem, affecting more than just older people. In addition, we live in a time of continuous development in LBP diagnosis and therapy, so it is important to constantly keep up with trends to provide patients with the highest-quality services.

In this literature review, we have turned our attention to the etiopathogenesis of pain accompanying LBP and LSS. The available literature and our own experience indicate that it is impossible to determine the exact reason for the pain syndromes of the lumbar spine region based on imaging and clinical condition tests [8]. Currently, in the neuroimaging diagnosis of LBP and LSS, X-ray imaging is used, which in most cases is the starting point for more advanced imaging studies, such as CT and MRI. MRI, which allows visualization of bony structures and soft tissues, is the criterion standard in diagnosing spinal pain. Finally, treatment should always be tailored to the patient’s clinical condition and reported symptoms and their severity, not just changes visualized on imaging studies. This should be guided by the principle that conservative treatment, including pharmacotherapy and rehabilitation, should be used first and, only later, when necessary, surgical treatment. Therefore, this review has assessed the current knowledge and future research directions.


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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750