Low back pain is one of the most common reasons adults see a physician. It's also one of the most poorly managed conditions in modern medicine, in part because the cause of the pain is so often misidentified. Imaging shows lots of things; the things imaging shows often aren't the things that hurt; treating the wrong thing produces predictable disappointment.
Cellular therapy and regenerative medicine have a role in chronic low back pain, but the role is narrower and more selective than for joint indications. This guide walks through how we think about it: what cellular therapy can do for the spine, what it can't, and how to figure out where your specific pain source fits.
If you're a patient who's had multiple injections, multiple imaging studies, and multiple opinions about your back, the most useful thing this guide can offer is a framework for matching the pain source to the right protocol. Most patients arrive at us having been treated for the wrong source.
The asymptomatic imaging problem
Before any discussion of treatment, a fact every back pain patient should know:
Spinal imaging findings (disc degeneration, disc bulges, disc herniation, facet hypertrophy, mild stenosis, mild spondylolisthesis) are extremely common in adults with no back pain. Brinjikji's 2015 systematic review found that disc degeneration is present in 37 percent of asymptomatic 20-year-olds, rising to 96 percent of asymptomatic 80-year-olds. Disc bulges, protrusions, and even small herniations are common in adults who have no symptoms whatsoever.
This means an MRI showing "degenerative disc disease at L4-L5" or "multiple disc bulges" tells you very little about whether those findings are the cause of your pain. The imaging finding is one piece of evidence; the actual cause requires correlation with history, exam, and sometimes diagnostic injection.
Patients who don't understand this often end up chasing imaging findings rather than actual pain generators. Don't make that mistake.
The main categories of low back pain
Low back pain can come from:
Facet joint pain. The small paired joints on the back of each vertebra. Common cause of axial back pain, often worse with extension and rotation. Estimated to account for 15 to 40 percent of chronic low back pain.
Disc-mediated pain (discogenic). Pain originating from the disc itself, often related to degenerative changes that have caused the disc to become innervated and inflamed. Often present as axial back pain worse with flexion and prolonged sitting.
Sacroiliac (SI) joint dysfunction. Pain from the joint between the sacrum and the pelvis. Often presents as one-sided buttock or low back pain, sometimes with referral down the leg. Account for an estimated 15 to 30 percent of chronic low back pain.
Radicular pain. True nerve root pain from compression of a specific nerve, often by a disc herniation. Typically follows a specific dermatomal distribution down the leg, often with associated neurologic findings.
Spinal stenosis. Narrowing of the spinal canal or neural foramina, often causing leg pain or "neurogenic claudication" worse with walking and standing.
Spondylolisthesis. Slippage of one vertebra relative to another. Can be congenital or degenerative. Sometimes a structural pain source.
Muscular and ligamentous pain. The paraspinal muscles, quadratus lumborum, gluteal muscles, and supporting ligaments can all contribute.
Referred pain from hip pathology. Hip OA, FAI, and labral tears can present as back or buttock pain.
Vertebral compression fractures. From osteoporosis or trauma. A separate management problem.
Serious "red flag" causes. Tumor, infection, fracture, cauda equina syndrome. Always rule these out first.
The same MRI in two different patients can mean very different things. The clinical workup determines which findings are relevant.
The workup
For chronic low back pain at Apex, the workup includes:
History. When the pain started, what makes it better or worse, what positions provoke it, whether it radiates and where, what you've tried, what you can and can't do because of the pain, your goals. Specific patterns on history correlate with specific pain sources.
Targeted exam. Range of motion in all planes, with attention to which motions provoke pain. Provocation maneuvers for facet (extension, rotation), disc (flexion), SI joint (FABER, Gaenslen, distraction), radicular (straight leg raise, slump test). Full neurologic exam: motor strength in each leg, reflexes, sensory, gait, balance.
Imaging review. Plain X-rays for alignment, instability, and bony detail. MRI for soft tissue, disc, nerve, and stenosis evaluation. Sometimes weight-bearing X-rays or flexion-extension views for instability assessment.
Diagnostic injection if needed. Often the most useful step. If we suspect facet-mediated pain, a small numbing injection into the suspected facets tells us whether they're actually the source. Same for SI joint. Same for a specific disc level if we're considering intradiscal therapy.
The diagnostic injection sequence is crucial. We don't proceed to a more involved regenerative protocol without confirming the pain source first. This is the single most common deficiency we see in patients who've been treated unsuccessfully at other clinics: they were given a regenerative injection for a level that hadn't been confirmed as the pain generator.
Facet-mediated pain
The facet joints are small synovial joints on the posterior aspect of each vertebra. They can develop OA and inflammation similar to other joints, becoming a source of chronic axial back pain.
Typical presentation. Axial low back pain, often worse with extension, rotation, prolonged standing, or transitioning from sitting to standing. May refer into the buttock or upper thigh but typically not below the knee in a dermatomal pattern.
Diagnostic confirmation. Medial branch block (numbing the small nerve that supplies the facet joint) or intra-articular facet injection. A positive response (significant pain reduction during the anesthetic period) confirms the facet as a pain source.
Conservative care first. PT focused on lumbar stabilization, core strengthening, and posture. Activity modification. NSAIDs.
Regenerative approach. PRP injection into the facet joints under ultrasound guidance for confirmed facet-mediated pain. Reasonable evidence base, with response rates and durability typically better than corticosteroid in the published literature.
Alternative interventional approach. Radiofrequency ablation (RFA) of the medial branch nerve is a well-established option for confirmed facet pain, with 6 to 12 months of relief typical. RFA can be sequenced with regenerative approaches.
Cellular therapy for facets. Smaller evidence base than PRP. Sometimes reasonable for severe facet OA or recurrent symptoms after PRP. Image-guided injection.
Expected response. 60 to 75 percent of patients with diagnostically confirmed facet pain experience meaningful relief from a properly delivered protocol. Durability typically 6 to 12+ months.
Disc-mediated (discogenic) pain
Pain originating from the disc itself, often from degenerative changes that have caused the normally aneural inner disc to become innervated and inflamed.
Typical presentation. Axial low back pain, often worse with flexion, prolonged sitting, or repetitive bending. Distinct from radicular pain (which follows a dermatomal distribution down the leg).
Diagnostic challenges. Discogenic pain is harder to confirm than facet pain. Provocation discography (injecting contrast into the disc to see if it reproduces the patient's pain) has fallen out of favor in some centers due to concerns about accelerating disc degeneration. MRI features (Modic changes, high-intensity zones, severe disc dehydration) can be suggestive but not definitive.
Conservative care first. PT focused on McKenzie-type extension protocols, core strengthening, posture work. Activity modification. Some patients respond well to structured rehab and avoid the need for any intervention.
Regenerative approach. Intradiscal PRP or cellular therapy has emerging support for chronic discogenic pain. Pettine and colleagues published 24-month follow-up of intradiscal BMAC injection in 2015 showing meaningful improvement in carefully selected patients. Later studies have added to the evidence but it remains less established than facet or SI joint approaches.
Patient selection matters. The best candidates are patients with relatively single-level disc disease, confirmed pain pattern, no significant nerve compression, no instability, and failed conservative care. Patients with multi-level severe disease, instability, or significant radicular symptoms are not good candidates.
Cellular product. Allogeneic MSCs and exosomes used intradiscally. Image-guided delivery via ultrasound. The procedure requires more setup and is technically more demanding than a facet or SI joint injection.
Expected response. Variable. Some patients show meaningful improvement; some don't. The technique, patient selection, and product choice all influence outcomes. We're transparent about the more limited evidence base when we recommend this protocol.
When not to use. Patients with significant disc herniation causing nerve compression (interventional or surgical territory). Patients with multi-level severe disease without a clear single pain generator. Patients with instability.
Sacroiliac (SI) joint dysfunction
The SI joint, where the sacrum meets the pelvis, is a common but often-missed source of low back pain.
Typical presentation. Often one-sided low back or buttock pain, sometimes referred to the groin or upper thigh. Worse with prolonged sitting (especially on a soft surface), transitions, climbing stairs, getting in and out of cars. Can mimic radicular pain but usually doesn't follow a clean dermatomal pattern.
Diagnostic confirmation. Provocation tests on exam (FABER, Gaenslen, distraction, thigh thrust) plus diagnostic image-guided SI joint injection. A positive response to local anesthetic injection confirms the SI joint as a pain source.
Conservative care first. PT focused on pelvic stabilization, gluteal strengthening, and posture. Sometimes manual therapy.
Regenerative approach. PRP injection into the SI joint under ultrasound guidance has reasonable evidence. Series of 1 to 2 injections, typically 4 to 8 weeks apart. Cellular therapy has emerging support for refractory cases.
Alternative interventional approach. SI joint corticosteroid injection (short-term relief), SI joint fusion (surgical, for severe refractory cases with confirmed pathology).
Expected response. 50 to 70 percent of patients with diagnostically confirmed SI dysfunction respond meaningfully to PRP. Durability 6 to 18 months typical.
Radicular pain (sciatica)
Pain along the distribution of a specific nerve root, usually caused by mechanical compression (disc herniation, stenosis) of that nerve.
Typical presentation. Pain radiating down the leg in a specific dermatomal pattern (L5: lateral leg and dorsum of foot; S1: posterior leg and lateral foot, with calf involvement). Often associated with numbness, tingling, or weakness in the same distribution. May be worse with sitting (for disc-mediated radiculopathy) or with walking and standing (for stenosis-mediated).
Conservative care first. PT, activity modification, oral medications including a short course of oral steroids in some acute cases.
Interventional approach. Epidural steroid injection, often as a first-line intervention. Transforaminal epidural for specific nerve root targeting. Effective for many patients, especially in the first 6 to 12 weeks after symptom onset.
Cellular therapy role. Limited. The mechanical problem (nerve compression by herniated disc material or stenotic anatomy) doesn't respond to cellular therapy directly. Some patients with chronic radicular pain after partial recovery may benefit from adjunctive regenerative care, but cells are rarely the primary intervention.
Surgical alternatives. Microdiscectomy for persistent radiculopathy from herniation. Laminectomy or laminoplasty for stenosis. Decompression and fusion for instability with nerve compression.
Red flags. Cauda equina syndrome (saddle anesthesia, bowel or bladder dysfunction, bilateral leg weakness) is a surgical emergency. Progressive weakness or significant motor deficit warrants surgical evaluation. Don't treat these regeneratively; refer.
Spinal stenosis
Narrowing of the spinal canal or neural foramina, often from a combination of disc, facet, and ligamentum flavum changes.
Typical presentation. Neurogenic claudication: leg pain or heaviness worse with walking and standing, relieved by sitting or leaning forward (the "shopping cart sign"). Often bilateral.
Conservative care first. PT focused on flexion-based exercises, posture, and conditioning. Activity modification. Oral medications.
Interventional approach. Epidural steroid injection, sometimes effective particularly for acute exacerbations.
Cellular therapy role. Limited. The mechanical narrowing isn't reversed by cells. Adjunctive use in some patients with mixed pictures.
Surgical alternatives. Decompression (laminectomy) for symptomatic stenosis that has failed conservative care. Sometimes with fusion if instability is present.
Multi-level degenerative disease
A common scenario in middle-aged and older patients: MRI shows degenerative changes at multiple levels, no single level clearly drives the pain.
This is one of the harder patient populations. The temptation to treat every level is real and usually wrong. Our approach:
Focus on the clinical exam and the most provocative findings.
Use diagnostic injection to identify the dominant pain generator(s).
Treat one or two levels at most, prioritizing the highest-confidence sources.
Pair regenerative treatment with structured PT and life-modification.
Accept that some chronic multi-level disease isn't fully resolvable; the goal is meaningful symptom and function improvement, not anatomic perfection.
Be honest about when a patient is better served by spine surgical consultation rather than a more elaborate regenerative attempt.
What spine regenerative procedures look like
For most spine procedures at Apex:
Facet PRP. 60 to 90 minutes total. Ultrasound-guided injection of PRP into the targeted facet joints, usually 2 to 4 joints per session. Mild local soreness for 24 to 48 hours. Return to most normal activity within a few days.
SI joint PRP or cellular therapy. 60 to 90 minutes. Ultrasound-guided injection. Similar recovery.
Intradiscal cellular therapy. 75 to 120 minutes. Ultrasound guidance, intradiscal needle placement, careful delivery. Often involves a brief observation period after the procedure. 5 to 7 days of activity restriction.
Caudal or transforaminal epidural cellular augmentation. Less common; selected cases.
All procedures are physician-performed, image-guided in real time, with image documentation saved to the chart.
What spine regenerative procedures don't do
A short list of things you should not expect:
Reversal of significant disc herniation. Cells don't pull herniated disc material back into place.
Cure for severe stenosis. The mechanical narrowing doesn't respond to cellular therapy.
Resolution of structural instability. Spondylolisthesis with frank instability is a surgical question.
Reversal of multi-level severe disease in a single intervention. The biology doesn't work that way.
Cure for radicular pain from active compression. The mechanical compression has to be addressed.
When spine surgery is the right answer
A few patterns where surgical consultation should be the next step:
Cauda equina syndrome. Surgical emergency.
Progressive motor weakness in a specific distribution. Don't wait.
Significant disc herniation with persistent radiculopathy that hasn't responded to a fair trial of conservative and interventional care.
Spondylolisthesis with documented instability and progressive symptoms.
Severe spinal stenosis with significant functional impairment that has failed conservative care.
Specific trauma cases.
Tumor or infection.
If your case fits one of these, we'll tell you and refer to a spine surgeon we trust.
Specific patient profiles
The 52-year-old with chronic axial low back pain, no leg pain, MRI showing facet hypertrophy at L4-L5 and L5-S1. Workup carefully. Diagnostic facet injection often confirms the source. Facet PRP series for confirmed cases.
The 45-year-old with one-sided buttock pain after pregnancy, worse with stairs. Likely SI joint dysfunction. Provocation maneuvers on exam, diagnostic injection, then SI joint PRP.
The 58-year-old with chronic axial pain worse with sitting and flexion, MRI showing severe L5-S1 disc degeneration. Possible candidate for intradiscal cellular therapy. Workup carefully to confirm single-level source.
The 65-year-old with bilateral leg pain worse with walking, MRI showing severe central stenosis. Spine surgical consultation. Not a regenerative case.
The 38-year-old with acute disc herniation and leg pain three weeks ago. Conservative care, epidural steroid if not improving. Surgical consultation if persistent or progressive. Regenerative care isn't the first answer for acute herniation.
The 55-year-old with multi-level disc degeneration and chronic back pain. Careful workup. Focus on the dominant pain generator. Realistic expectations.
How to book
To request a consultation about your back, request a consultation or call (972) 768-2328. We're at 2111 Kirkwood Blvd, Suite 110b, Southlake, TX 76092.
If you've had multiple prior treatments without success, bring all records and imaging. The diagnostic synthesis is often what's been missing.
A short note from Dr. Abdullah
Back pain is the indication where I most often disappoint patients during consultation. Not because the regenerative toolkit doesn't have a role, but because the toolkit is narrower than patients hope and the diagnostic work is harder than most of the medical system gives credit for. Patients arriving with thick stacks of imaging and a half-dozen failed prior treatments often need not another procedure but a clean diagnostic workup that figures out what's actually generating the pain. Sometimes that workup reveals a clean cellular therapy candidate. Sometimes it reveals that the right answer is PT, surgery, or simply accepting that nothing intra-articular is going to fix the problem. Honesty about that is the most useful thing we can offer.
References
- Mohi Eldin MM, et al. Mesenchymal stem cells for chronic low back pain: a review. Stem Cells Cloning. 2020.
- Pettine KA, et al. Treatment of discogenic back pain with autologous bone marrow concentrate: 24-month follow-up. Stem Cells. 2015.
- Brinjikji W, et al. Systematic literature review of imaging features of spinal degeneration in asymptomatic populations. AJNR Am J Neuroradiol. 2015.
- Manchikanti L, et al. Facet joint injections: a systematic review. Pain Physician. 2015.