Sciatica Is a Symptom, Not a Diagnosis. Finding the Source Changes Everything.
Sciatica — the shooting pain, numbness, or weakness that travels from the lower back down the leg — is one of the most common and most mismanaged pain complaints in medicine. It is not a diagnosis in itself. It is a symptom of nerve root irritation, and the cause determines the treatment. At Palm Beach Regenerative, Dr. Ghattas identifies the exact nerve root involved and the structure responsible — then treats both the nerve environment and the underlying FSU contributors driving the compression.
Results vary. Not all patients are candidates. Dr. Ghattas will discuss realistic expectations for your specific condition.
This condition is treated as part of the Lumbar Functional Spinal Unit (FSU). Dr. Ghattas evaluates every contributing structure — not just the affected segment. See the FSU overview page to understand the full treatment philosophy.
What is sciatica — and what causes it?
The sciatic nerve is the longest and widest nerve in the body, formed by the convergence of nerve roots from L4, L5, and S1. When any of these roots are compressed or inflamed in the lumbar spine, pain, numbness, tingling, or weakness can travel along the nerve’s distribution—into the buttock, down the back of the thigh, and into the calf or foot. The pattern of symptoms often helps identify which nerve root is involved.
True lumbar radiculopathy must be distinguished from referred pain (which does not follow a dermatomal pattern) and from piriformis syndrome (where the sciatic nerve is compressed in the buttock rather than the spine). This distinction is critical because it determines where treatment should be directed.
Sciatica Nerve Root Reference
| Root | Pain Distribution | Common Cause | Weakness/Reflex Change |
|---|---|---|---|
| L3-L4 | Inner thigh; knee; anterior shin | L3-L4 disc herniation or foraminal stenosis | Knee extension weakness; reduced knee reflex |
| L4-L5 | Outer shin; top of foot; big toe | L4-L5 disc herniation (most common level) | Great toe / foot dorsiflexion weakness |
| L5-S1 | Back of thigh; calf; outer foot | L5-S1 disc herniation or SI joint involvement | Ankle plantarflexion weakness; reduced ankle reflex |
Important: Severe or progressive neurological deficit—such as significant leg weakness, foot drop, or any change in bowel or bladder function—requires urgent medical evaluation and is not appropriate for orthobiologic treatment without surgical clearance first.
What causes lumbar nerve root compression?
- Disc herniation
The most common cause. A herniated nucleus pulposus contacts the nerve root directly, causing chemical irritation and mechanical compression. L4–L5 and L5–S1 are the most frequently affected levels. - Foraminal stenosis
Narrowing of the opening through which the nerve root exits the spine—caused by disc height loss, bone spur formation, or facet joint hypertrophy. Often produces symptoms with standing and walking rather than sitting. - Central canal stenosis
Narrowing of the spinal canal itself, compressing multiple nerve roots. Causes neurogenic claudication—bilateral leg pain and heaviness with walking, relieved by sitting or flexing forward. - Spondylolisthesis
Vertebral slippage that narrows the foramen and stretches the exiting nerve root. Grade I–II spondylolisthesis may be amenable to FSU stabilization treatment. - Piriformis syndrome
The sciatic nerve is compressed by the piriformis muscle in the buttock rather than in the spine. Presents similarly to lumbar radiculopathy, but MRI is normal. Treated differently—image-guided perineural hydrodissection at the piriformis.
Treating sciatica through the FSU
Our approach to sciatica addresses both the nerve root and the FSU structures responsible for the compression. Suppressing the nerve’s pain signal alone — the approach of traditional corticosteroid epidurals — rarely provides lasting relief if the disc, facet, or instability driving the compression is left untreated.
- Epidural PRP (transforaminal or interlaminar)
Image-guided delivery of platelet-rich plasma into the epidural space around the affected nerve root. Unlike corticosteroid epidurals, PRP aims to support your body’s natural response to nerve root inflammation rather than simply suppressing it. Performed under fluoroscopic guidance with contrast confirmation of accurate placement. - Perineural hydrodissection
Image-guided injection of fluid along the nerve root to release adhesions and reduce mechanical tethering of the nerve—particularly useful in post-surgical sciatica or chronic radiculopathy with fibrosis around the nerve. - FSU treatment of the driving structure
Treating the nerve environment without addressing what is causing the compression is incomplete. Dr. Ghattas simultaneously targets the responsible FSU structure: facet joint PRP for foraminal stenosis driven by facet hypertrophy, ligament prolotherapy for instability-driven nerve irritation, or disc-adjacent treatment where appropriate. - Piriformis release (for piriformis syndrome)
When the cause is identified as piriformis syndrome rather than spinal stenosis, image-guided perineural injection and hydrodissection around the sciatic nerve at the piriformis level addresses the source directly—without any lumbar procedure.
Candidacy for sciatica treatment
May be appropriate if you:
- Have confirmed lumbar nerve root compression on MRI
- Have radicular symptoms (pain, numbness, tingling) in a dermatomal pattern
- Have not responded to physical therapy, NSAIDs, or conservative care
- Want to explore alternatives to corticosteroid epidurals or surgery
- Have no severe or progressive neurological deficit
May not be appropriate if you:
- Have severe, progressive, or acute neurological deficit
- Have cauda equina syndrome (bowel/bladder changes) — urgent surgical evaluation required
- Have not yet had current lumbar MRI reviewed
- Have a cause of sciatica (tumor, infection, fracture) requiring direct intervention
- Are in an acute pain crisis — this is not an emergency treatment
FDA/FTC Compliance Note: Like all medical procedures, orthobiologic treatments have potential risks and benefits. Results vary by individual. Not all patients are candidates. The majority of spine procedures use platelet-rich plasma (PRP) rather than bone marrow concentrate. These treatments do not regenerate or rebuild damaged discs or spinal structures. Dr. Ghattas will discuss your specific situation, realistic expectations, and all options—including when surgical referral is more appropriate. This content is for informational purposes only and does not constitute medical advice, diagnosis, or treatment.
Ready to understand the real source of your back pain?
Dr. Ghattas will review your imaging and assess your lumbar spine as a complete system, then discuss which structures are contributing and whether orthobiologic treatment is appropriate for your specific case.
●PATIENT OUTCOMES
Real Patients. Real Results.
No medical procedure can guarantee an outcome. What you should expect is an honest discussion of the evidence, a careful assessment of candidacy, and a recommendation based on your condition.
"Honestly one of the best experiences, I’ve had a really stiff neck for a couple weeks I tried seeing a chiropractor for and it helped marginally but the real jump in relief was coming to see Dr. Ghattas! He has been incredible, wonderful staff, and minimally invasive technique for my pain relief which was super important to me! Thank you Dr. Ghattas recommending to anyone with pain!"Monica A
"Ghattas was instrumental in helping my torn rotator cuff. I did Barbotage for the stone, and then PRP. Great experience. Been about a month or 2 since and I feel great."Ahmet B
"I had severe knee pain and was looking for proper knee pain treatment, which is how I found Dr. Ghattas on Instagram. I was a bit hesitant at first, but it turned out to be one of the best decisions I’ve made for my health. Francia was amazing at coordinating all my consultations and making the whole process easy and stress-free. If you’re dealing with knee pain and looking for a reliable doctor and team, I highly recommend them."Roger L
"Over a year ago, both my daughter and I underwent PRP treatment with Dr. Ghattas—PRP for my left knee and PRP for my daughter’s L4-L5 and sacral region. We wanted to wait long enough to truly evaluate the results before sharing our experience. I am pleased to say that the outcomes have been outstanding. My daughter’s improvement has been remarkable, and the treatment has made a significant difference in her quality of life. I have also experienced excellent results with my knee. Dr. Ghattas is an exceptional physician who combines expertise, professionalism, and genuine care for his patients. We are incredibly grateful for the treatment we received and the positive impact it has had on our lives. Thank you, Dr. Ghattas. We are truly grateful for everything you have done. You are simply the best."Dr Jorge A
"Dr. Ghattas is very knowledgable and a sympathetic doctor. Hard to find in America. All questions answered, my procedure went very smoothly, very little pain. Follow up is excellent, I highly recommend his practice."Luciana D
“ I had severe knee pain and was looking for proper knee pain treatment, which is how I found Dr. Ghattas on Instagram. I was a bit hesitant at first, but it turned out to be one of the best decisions I’ve made for my health. Francia was amazing at coordinating all my consultations and making the whole process easy and stress-free. If you’re dealing with knee pain and looking for a reliable doctor and team, I highly recommend them. ”Roger L
“Dr. Ghattas was terrific today. He spent a good amount of time examining me and explaining the regenerative process which I intend to have done next month. More to come after the procedure.”Louie R
“I found Dr Ghattas and his staff very welcoming and informative. The process was well explained and gave me encouragement about the potential for fully restoring my knee joint integrity.”Eric C
“I received two treatments from Dr. Ghattas With excellent results, he takes great care in his assessment and in his treatment you couldn’t be in better hands. I highly recommend his work.”Gisela S
“Apart from the exemplary personal service by the reception and the staff that makes us feel we're at home at the clinic, I have experienced remarkable healing in several episodes from shoulder issue to knee injuries and hip pain. The doctor is so thorough in the diagnosis phase that he administered exactly what was needed, no more no less! Thank you folks for a wonderful experience.”RG G
“Went to Dr. Ghattas for chronic knee and neck issue. I’ve already had multiple procedures done on my neck and multiple epidurals with minimal success. My knee I was told needed surgery to fix. I already had surgery in the past with minimal difference. I ended up getting stem cells in my knee and neck and could t be happier with the outcome. Anyone considering surgery I recommend checking out Regenex first. Next I’m doing the ganglion block and look forward to the results.”Logan H
“Dr. James Ghattas and his team are truly top-notch. His office is equipped with state-of-the-art technology and a staff that's exceptional in their fields. I've referred several clients to him, and they've all been incredibly satisfied. Dr. Ghattas is absolutely ahead of the curve, and I wholeheartedly endorse his work.”Ron H
“I am quite active and go to pilates 3-4 times per week. I was having left knee pain and which was treated with PRP. It took about 3 months for me to feel better but then the pain completely subsided. I now am able to exercise without the fear that I will tear a ligament and am pain free.”Ellipsis P
“Transparency, thoroughness, attention to detail, immediate, high quality, follow ups and follow through are just a few words that come to mind throughout my experiences with Palm Beach Regenerative Sport and Spine.”Milton L
