Lumbosacral osteochondrosis: clinical features and approaches

Lumbosacral osteochondrosis is a collective clinical term often used in everyday speech to describe any lower back pain. In modern medicine, it refers to a complex of degenerative changes in the intervertebral discs, facet joints, ligaments, and vertebral bodies, accompanied by pain and neurological symptoms that may radiate to the lower extremities. This approach is important because accurately identifying the source of the pain helps determine the correct diagnosis and treatment, avoiding unnecessary examinations and procedures. [1]

Low back pain is the leading cause of activity limitations and disability worldwide. According to the World Health Organization, as of 2020, approximately one in 13 people worldwide experienced low back pain, and the incidence is expected to continue to increase by 2050. This means that providing effective low back pain care is a critical issue for healthcare systems and for every patient. [2]

Despite the alarming language in imaging reports, structural changes in the spine are often found in asymptomatic individuals. Therefore, diagnosis is always based on complaints, examination, and neurological status, and imaging is used selectively—in situations where it truly changes management. This balanced approach improves effectiveness and reduces the risk of overtreatment. [3]

This article summarizes current data on the epidemiology, coding according to international classifications, causes and risk factors, development mechanisms, clinical manifestations, diagnosis, differential diagnosis, treatment, prevention, and prognosis of lumbosacral osteochondrosis. The text is based on major guidelines and reviews of recent years, including recommendations from the National Institute for Health and Care Excellence (NICE) in the UK and the World Health Organization. [4]

Code according to ICD-10 and ICD-11

The International Classification of Diseases, Tenth Revision, uses M-codes to describe degenerative diseases of the lumbar and sacral spine. The most commonly used codes are M47.8x for "spondylosis" without myelopathy or radiculopathy in the corresponding region, and M51.3x for degeneration of the lumbar or lumbosacral intervertebral disc. If the predominant symptom is "low back pain" without specifying the cause, M54.50 "low back pain, unspecified" is used. The choice of code depends on the leading clinical and diagnostic scenario. [5]

In the International Classification of Diseases, Eleventh Revision, low back pain is classified under the ME84 "low back pain" block with the subcategories "low back pain with sciatica" and "low back pain, unspecified." For chronic pain associated with structural changes (including spondylosis), the MG30.31 "chronic musculoskeletal pain associated with structural changes" group is additionally used. This allows for coding of both the symptom and the underlying pain syndrome. [6]

Table 1. Codes frequently used for lumbosacral osteochondrosis

Classification	Code	Name
ICD-10	M47.896	Other spondylosis, lumbar
ICD-10	M47.817	Spondylosis without myelopathy and radiculopathy, lumbosacral region
ICD-10	M51.36	Other intervertebral disc degeneration, lumbar
ICD-10	M54.50	Low back pain, unspecified
ICD-11	ME84.20 / ME84.2Y / ME84.2Z	Low back pain with sciatica / other specified / unspecified
ICD-11	MG30.31	Chronic musculoskeletal pain associated with structural changes (including spondylosis)

Epidemiology

Low back pain is the leading cause of disability worldwide, measured by years lived with disability. In 2020, approximately 619 million people experienced low back pain, equivalent to approximately 7.7 percent of the global population, and this number is expected to increase to 843 million by 2050. Regions with rapidly aging populations contribute the most. [7]

A global burden of disease analysis confirms that low back pain has remained the largest source of disability since 1990, with modifiable risk factors accounting for approximately 40 percent of the burden. The largest proportion of years lost due to disability occurs in the working age group of 20–65 years, making the issue economically significant. [8]

The prevalence of episodes of increased pain varies with age: the peak occurs in the 40-60 age groups, but clinically significant pain also occurs in young adults with overuse, as well as in older adults with comorbidities. These differences reflect the multifactorial nature of low back pain. [9]

Despite the frequency of symptoms, not all patients have changes detectable on imaging. This underscores the need for a clinically oriented approach: treating not the "picture," but the individual, with their function, goals, and risks. This approach is embedded in current national guidelines. [10]

Table 2. Key epidemiological landmarks

Indicator	Meaning
Proportion of population with low back pain (2020)	about 7.7%
Number of cases in 2020	approximately 619,000,000
Forecast to 2050	about 843,000,000
The largest proportion of years lost due to disability	age 50-54 years (trend 1990-2019)

Reasons

The biological basis of osteochondrosis is degeneration of the intervertebral disc and facet joints. With age, the water and proteoglycan content in the disc core decreases, diffusion through the cartilaginous endplates deteriorates, and cracks in the fibrous ring develop. These changes lead to a decrease in the "hydraulic" function of the disc, increased stress on the facet joints and ligaments, and the development of pain. [11]

Microtrauma and repeated shear and flexion loads accelerate the degenerative process. Prolonged static sitting without support, bending with a load, and a lack of regular movement play a significant role, increasing intradiscal pressure and reducing core turgor. In compensation, the load on the facet joints increases during extension. [12]

Nerve structures are involved in various ways: from chemical sensitization and a neuropathic component during root irritation to nooplastic mechanisms during chronic disease. As a result, the type of pain can shift from nociceptive to mixed, which determines the response to treatment. [13]

Finally, musculoskeletal imbalances and impaired neuromuscular control increase the "neutral zone" of a segment's movements, forcing the muscles to act as a constant stabilizer and creating a vicious cycle of pain and fatigue. Correcting this link is one of the goals of rehabilitation. [14]

Risk factors

Modifiable risk factors include low physical activity, prolonged sitting, smoking, obesity, and poor sleep quality. These factors are associated with chronic low-grade inflammation, decreased disc trophism, and decreased central nervous system pain modulation. Managing these factors increases the chances of lasting improvement. [15]

Occupational stress is important: work involving heavy lifting, frequent bending, or vibration increases the risk of symptomatic degeneration. At the same time, excessive caution and fear of movement lead to deconditioning and worsen the prognosis, which is taken into account in current management recommendations. [16]

Non-modifiable factors include age, genetic predisposition, and certain anatomical variations in the structure of the facets and sacroiliac joints. They do not determine the inevitability of pain, but they do set the threshold of tissue vulnerability to stress. [17]

Psychosocial factors – anxiety, depressive symptoms, catastrophizing, job dissatisfaction – increase the perception of pain, slow down recovery and require targeted work as part of a comprehensive treatment program. [18]

Table 3. Risk factors and what to do about them

Factor	Influence	Practical answer
Sitting for long periods of time	Increased intradiscal pressure, deconditioning	Micro-breaks and pose variation
Smoking and obesity	Chronic inflammation, poor nutrition	Quitting smoking, losing weight
Vibration, tilting with load	Microtrauma of the disc and facets	Redistribution of load, training in technique
Poor sleep, stress	Increased pain sensitivity	Sleep hygiene, stress management

Pathogenesis

The key factor is the loss of water and proteoglycans in the disc core, resulting in a transition from "hydrostatic" to "fibrous" mechanics. This increases shear loads on the annulus fibrosus and facet joints. During prolonged static sitting, intradiscal pressure in the lumbar spine exceeds that during standing, especially when bending forward, accelerating degradation. [19]

Damage to the annulus is accompanied by the proliferation of pain fibers and local inflammation. In response to instability, paravertebral muscle activity increases, muscle fatigue increases, and trigger points develop. Neuromuscular control is impaired, and the segment's "neutral zone"—the range of small movements under minimal load—expands. [20]

Neurological manifestations arise from irritation or compression of the nerve root by a herniated disc, canal stenosis, or facet-ligament growths. Chemical sensitization of the nerve root by disc breakdown products also plays a role, which is why the severity of pain does not always correlate with the size of the herniation. [21]

In chronic cases, neuroplastic mechanisms are activated—an imbalance in descending pain inhibition and central sensitization. In such cases, educational and psychological components of the treatment program, combined with measured physical activity, are particularly important. [22]

Symptoms

The leading symptom is low back pain, often accompanied by morning stiffness and aggravated by prolonged sitting, bending, and carrying heavy objects. The pain may decrease with changes in position, walking, and unloading. When the facet joints are involved, the pain intensifies with extension, while in discogenic pain, it intensifies with flexion. [23]

Radiculopathy manifests as pain radiating down the leg along the dermatome, paresthesia, possible sensory loss, and weakness in the corresponding muscles. Coughing and straining may exacerbate radicular symptoms. This is an indication for closer observation and, if necessary, imaging. [24]

In some patients, the pain is chronic, with periodic exacerbations and remissions. Associated sleep disturbances, anxiety, and decreased activity and endurance of trunk muscles are common. This requires a comprehensive assessment and a multidisciplinary approach. [25]

Warning signs include progressive leg weakness, pelvic floor dysfunction, fever, unexplained weight loss, nocturnal pain, and a history of trauma. These cases require urgent diagnostic evaluation. [26]

Classification, forms and stages

Clinicians distinguish between nonspecific low back pain without signs of root involvement, low back pain with sciatica (radicular syndrome), and specific causes of pain (tumors, infections, fractures, inflammatory spondyloarthropathies). For osteochondrosis, the first two are key. This section helps formulate a diagnostic and treatment plan. [27]

Based on duration, acute episodes are defined as up to 6 weeks, subacute episodes as 6-12 weeks, and chronic pain as more than 12 weeks. These time frames determine the intensity of interventions and expectations for functional recovery. [28]

Based on the anatomy of the pain source, there are discogenic, facet, sacroiliac joint, and mixed types. The source often coexists with myofascial triggers. Precise localization determines the choice of interventions, such as targeted injections. [29]

According to mechanics, a distinction is made between unstable segments with an extended neutral zone and relatively “rigid” segments with limited amplitude, which influences the choice of exercises: stabilization versus mobilization techniques. [30]

Table 4. Clinical classification of low back pain

Base	Forms
According to neurological status	Non-specific pain; pain with sciatica (radiculopathy); specific pain
By duration	Acute (up to 6 weeks); subacute (6-12 weeks); chronic (more than 12 weeks)
According to the source	Disc; facets; sacroiliac joints; mixed
On mechanics	Unstable neutral zone; "hard" segment

Complications and consequences

In unfavorable cases, persistent limitations in activity, decreased productivity, and decreased quality of life are possible. Chronic pain is associated with anxiety and depressive disorders, sleep disturbances, social isolation, and increased healthcare consumption. These consequences require as much attention as pain management. [31]

Rare but important complications include cauda equina syndrome with pelvic dysfunction and severe neurological deficits associated with massive disc herniation or stenosis. In such cases, urgent imaging and neurosurgical consultation are required. [32]

Prolonged physical inactivity coupled with a "gentle regimen" paradoxically worsens the condition: muscle strength and endurance decrease, fatigue increases, and the neutral zone expands. Therefore, guidelines emphasize an early return to daily activity. [33]

Unreasonable and excessive imaging and unnecessary interventions can lead to medical and financial risks without improving outcomes. Adherence to evidence-based guidelines reduces the likelihood of such scenarios. [34]

When to see a doctor

Immediate medical attention should be sought if you experience increasing leg weakness, perineal numbness, loss of bladder or bowel control, fever, night pain, unexplained weight loss, or after a high-energy injury. These are signs of a potentially dangerous condition and "red flags." [35]

A routine consultation is indicated if pain persists for more than 4-6 weeks despite reasonable activity and simple pain relievers, if pain radiates to the leg, numbness or loss of strength occurs, or if pain interferes with sleep and work. The doctor will confirm the diagnosis and propose a personalized treatment plan. [36]

Follow-up visits are appropriate in cases of relapse, when the initial program is insufficiently effective, and to tailor rehabilitation and control risk factors. Regular communication with a medical specialist improves outcomes and adherence. [37]

People in occupational risk groups (such as prolonged sitting, lifting, and vibration) benefit from discussing preventative measures and early intervention at the first signs of exacerbation. This reduces the risk of chronicity. [38]

Diagnostics

The first step is a consultation and examination: the nature of the pain, its duration, triggers, impact on sleep and work, and neurological complaints are clarified. The doctor evaluates gait, spinal axis, range of motion, neurological status (muscle strength, sensitivity, reflexes), and conducts simple functional tests for radicular symptoms. At this stage, a preliminary hypothesis is formed. [39]

The second step is risk stratification: looking for "red flags." If present, magnetic resonance imaging or computed tomography (MRI) is indicated depending on the suspected pathology, as well as laboratory tests (e.g., if infection is suspected). In their absence, routine imaging is not recommended. [40]

The third step is to select a non-invasive strategy for 4-6 weeks: educational measures, early activity, an individualized exercise program, and, if necessary, a short course of pain medication. If radiculopathy is severe, targeted interventions are discussed after assessing the dynamics. This "therapeutic test" is important for the natural selection of patients who require additional examinations. [41]

The fourth step is visualization, if necessary, to change tactics: magnetic resonance imaging without contrast is the method of choice for persistent radiculopathy; radiography - for deformities or after injury; computed tomography - for bone pathology. The results are compared with the clinical picture, avoiding "image treatment." [42]

Table 5. What, when and why in diagnostics

Stage	Method	Target
Clinical neurological screening	Inspection and tests	Identify the likely source of pain and risks
Looking for red flags	Anamnesis, basic tests	Resolve the issue of urgent visualization
Conservative test 4-6 weeks	Training, activity, exercises	Evaluate natural improvement
Visualization when indicated	Magnetic resonance imaging / radiography / computed tomography	Refine tactics, plan interventions

Differential diagnosis

It is important to distinguish nonspecific pain associated with osteochondrosis from specific causes: spinal infection (spondylodiscitis), tumors and metastases, compression fractures, and inflammatory spondyloarthropathies. Clinical clues include fever, night pain, weight loss, trauma, and severe morning stiffness. [43]

It is important to differentiate between the sources of pain: discogenic, facet, sacroiliac joint, and myofascial. In controversial situations, diagnostic blocks or careful comparison of clinical findings with imaging results are helpful. [44]

Radiculopathy differs from pseudoradiculitis by its distinct dermatomal irradiation, provocation with root traction, and neurological deficits. The presence of sensory and strength loss increases the likelihood of compression and the indication for imaging and intervention. [45]

It's important to consider non-vertebral sources of pain: hip joint, peripheral neuropathy, visceral causes. This can be clarified through a targeted examination and, if necessary, additional testing. [46]

Treatment

The basic strategy is based on an educational conversation: the doctor explains the nature of pain, the role of movement and gradual loading, safe activity limits, and expected dynamics. This reduces anxiety, breaks the vicious cycle of "fear-avoidance-deconditioning," and in itself reduces pain. Modern guidelines emphasize the value of such a conversation already at the first visit. [47]

Early activation is the cornerstone. It is recommended to return to normal activity as soon as possible, correcting the most provocative movements and distributing the load evenly throughout the day. A strategy of "micro-breaks" every 30-45 minutes of sitting is biomechanically sound: it reduces average intradiscal pressure and improves disc metabolism. [48]

Exercise programs are individually tailored, taking into account the patient's initial physical fitness, pain domains, and goals. Low- and moderate-intensity aerobic exercise, core strength training with an emphasis on endurance, motor control exercises, and mind-body practices are effective. Group classes increase adherence and performance. [49]

Medications play a supportive role. Paracetamol or nonsteroidal anti-inflammatory drugs are used for short periods, taking into account the risk factors for gastrointestinal and cardiovascular complications. Muscle relaxants are acceptable for short courses in cases of severe muscle spasms. Opioid analgesics are not routinely recommended and should only be considered as short-term "bridge therapy" under strict indications. [50]

When the neuropathic component of pain (radicular syndrome) predominates, central pain modulation agents are sometimes used based on individual indications. The decision is made after assessing the benefits and risks and is always combined with active rehabilitation. The goal is to relieve pain sufficiently to allow the patient to fully engage in exercise. [51]

Non-pharmacological adjuncts include manual techniques, acupuncture, cognitive-behavioral therapy, and other psychotherapeutic approaches to pain. These methods are considered part of a multi-component program, not as "monotherapy." The best results are achieved when combined with exercise and educational elements. [52]

Interventional methods are indicated in strictly defined cases. In cases of severe radiculopathy, epidural glucocorticosteroid injections are possible for short-term relief and as a "window" for active rehabilitation. For facet pain, diagnostic and therapeutic blocks, as well as radiofrequency denervation, are considered under strict indications. The decision is made by a specialist after comparing clinical and imaging data. [53]

Ergonomics and behavioral skills are a daily "pharmaceutics" for the spine. Adjustable desk height, lumbar support, a monitor at eye level, balanced lifting and transfers, and close-to-body lifting techniques reduce peak loads. However, postural variation and regular changes in activity are far more important than searching for a single "perfect" posture. [54]

Surgical treatment is indicated in a minority of patients. Indications include persistent neurological deficit, severe radiculopathy unresponsive to a comprehensive conservative program for 6-8 weeks, cauda equina syndrome, and severe stenosis with limited ambulation. Interventional options include microdiscectomy, decompression, and, if necessary, stabilization. The decision is made by the neurosurgeon in consultation with the patient after discussing the risks and expected functional outcomes. [55]

The World Health Organization's latest guidelines for chronic low back pain emphasize access to rehabilitation, self-management, interdisciplinary programs, and minimizing unnecessary imaging and medications. This is at the systemic level, but at the patient level, these principles also mean something simple: more conscious movement, less passive waiting, and maximum personalization of the plan. [56]

Table 6. Pillars of evidence-based treatment

Component	Role	Note
Education and self-management	Reduced anxiety, increased control	Start with the first consultation
Active rehabilitation	Improved function and pain	Individual programs, groups
Medicinal support	Short-term relief	Avoid long courses
Interventions	Spot pain relief	According to strict indications
Surgery	For the chosen ones	In case of clear indications and failure of conservative therapy

Prevention

The foundation of prevention is regular physical activity, combining aerobic exercise, core strength training, and flexibility training. Daily "micro-breaks" from sedentary work, varying postures, and learning how to lift safely significantly reduce the risk of flare-ups. These are simple but effective measures. [57]

Weight management and smoking cessation reduce chronic inflammation and improve intervertebral disc health. Getting 7-9 hours of sleep and maintaining good sleep hygiene improve pain modulation and stress tolerance. These factors are equally important as exercise. [58]

Workstation ergonomics should be adjustable, not "perfect." Being able to easily adjust your desk height and posture is more important than locking in a "correct" posture all day. Supplement this with short back exercises throughout the workday. [59]

At the first signs of an exacerbation, it is appropriate to reduce the triggering stress, provide temporary medication support, and focus on sleep and stress management. Early intervention shortens the duration of the episode and reduces the risk of chronicity. [60]

Forecast

Most episodes of acute low back pain improve within 2-6 weeks with an active regimen and simple medication support. The presence of radicular symptoms may prolong the time frame, but even in these scenarios, conservative management is often successful. Adherence to the program and effective implementation of recommendations are essential. [61]

The prognosis worsens with a combination of risk factors: deconditioning, smoking, obesity, severe anxiety, and depression. In such cases, multifactorial programs combining physical, educational, and psychological elements are helpful. [62]

Long-term outcomes depend on investing in physical fitness and behavioral patterns: regular movement, postural variation, proper ergonomics, and adequate sleep. At the healthcare system level, access to rehabilitation and patient education improve population outcomes. [63]

Surgery, when carefully selected, can quickly reduce radicular pain and improve function, but it does not replace training and risk factor correction. Post-surgery rehabilitation remains as important as before. [64]

Frequently Asked Questions (FAQ)

Should everyone have an MRI for low back pain?
No. Unless there are red flags, imaging typically doesn't improve outcomes and isn't needed initially. It's performed when the results could change the treatment plan—for example, in cases of persistent radiculopathy, neurological deficits, or before intervention. [65]

How long should a conservative program be tried before considering surgery?
In most cases, discussion of intervention is possible after 6-8 weeks of comprehensive conservative therapy for persistent severe radicular pain or progressive neurological deficits. In cauda equina syndrome, urgent surgery is indicated immediately. [66]

Do corsets and belts help?
Routinely, no. Guidelines do not recommend using corsets to treat low back pain without specific indications, so as not to "wean" the muscles from working. Exceptions are rare and are discussed on a case-by-case basis. [67]

What's the best physical activity?
One that you're willing to do regularly. Aerobic exercise, core strength training, motor control exercises, and mind-body practices are effective. Group programs and education increase commitment and improve results. [68]

Additional table: a reminder on self-management during an exacerbation

Situation	What to do today	When to see a doctor again
Acute pain without red flags	Move in a gentle mode, take a short course of pain relief, sleep	If there is no improvement after 4-6 weeks
Pain radiating to the leg	Maintain activity, targeted exercises	If weakness, increasing numbness, sleep is disturbed
Night pain, fever, weight loss	See a doctor immediately	Immediately
There is improvement after the episode.	Prevention plan: movement, sleep, ergonomics	Control according to plan