Minimally Invasive Surgery
A minimally invasive microdiscectomy removes a herniated disc fragment through a muscle-splitting tube — fast relief of sciatica with the smallest possible footprint. Performed by Dr. David L. Greenwald, MD, FAANS, FACS.

Over 100 5-Star Reviews!


A minimally invasive microdiscectomy removes the herniated fragment pressing on a spinal nerve through a small tube that splits — rather than cuts — the back muscles. It delivers the same fast sciatica relief as a traditional microdiscectomy, with even less tissue disruption.
Book a Consultation — (602) 566-9500The Muscle-Sparing MIS Approach
This is the minimally invasive version of a microdiscectomy: instead of a traditional open incision, a small tubular retractor is passed between the back muscles to reach the herniated disc, which is then removed from the nerve under magnification. Splitting the muscle rather than cutting it means less pain and an even quicker recovery, while achieving the same goal — fast relief of sciatica.
Spine injuries from athletic activity, from strains to herniated discs.
Learn MoreIt's considered for a herniated disc causing persistent or severe sciatica or leg weakness that hasn't responded to conservative care and an injection. Imaging confirms the herniation matches your symptoms. Most patients with a focal lumbar disc herniation are good candidates for this muscle-sparing approach.
Book a Consultation — (602) 566-9500Same fast sciatica relief as open microdiscectomy with even less tissue disruption; muscle-splitting (not cutting) approach; typically same-day discharge; quick return to activity.
Risks include bleeding, infection, dural leak, re-herniation, and, uncommonly, nerve injury. Dr. Greenwald reviews your individual risks in detail.
Minimally invasive microdiscectomy is highly effective for sciatica from a herniated disc, with prompt relief of leg pain for most patients and a quick recovery. As with any discectomy, a small percentage can re-herniate; we discuss how to minimize that and what to realistically expect.
Life Beyond the Pain

Under anesthesia, a small incision is made and a series of dilators create a path between the back muscles, through which a tubular retractor is placed. Using an operating microscope or endoscope, the surgeon removes the herniated fragment pressing on the nerve, confirms the nerve is free, and removes the tube — the muscles close back naturally. Most patients go home the same day.
Your procedure is performed by Dr. Greenwald at an affiliated, accredited surgical facility — not in the clinic office — with a full surgical and anesthesia team.
| Timeframe | What to expect |
|---|---|
| First week | Usually home the same day. Short walks; avoid heavy lifting, bending, and twisting; the small incision heals quickly. |
| Weeks 2–4 | Steady increase in activity; many return to desk work; light physical therapy may begin. |
| Weeks 4–8 | Resume most activities and light exercise as directed. |
| Months 2–3 | Full recovery for most patients. |
The muscle-splitting MIS approach typically means less post-operative pain and a quicker return to activity than a traditional open microdiscectomy. We guide a sensible return to lifting to reduce the small risk of re-herniation.
Cost and coverage shouldn't stand between you and relief. Desert Spine and Pain welcomes out-of-network patients and will walk you through what your evaluation and treatment are likely to involve before anything is scheduled — so there are no surprises. We'll help you understand your benefits and options, whether you're using insurance, paying out-of-pocket, or being treated under a personal-injury claim.
Patients travel to Desert Spine and Pain from across Arizona for specialist spine care — because the right spine surgeon is worth the drive. We welcome patients from Phoenix and communities throughout the Valley and beyond:
…and surrounding Arizona communities. Out-of-network patients are welcome, and no referral is required — schedule a consultation.
Choosing the right spine specialist in Phoenix matters. At Desert Spine and Pain, your care is led by Dr. David L. Greenwald, MD, FAANS, FACS — a physician who is both a board-certified spine surgeon and a neurosurgeon. That dual expertise is rare, and it means one expert can guide you across the full spectrum of care — from a simple injection to complex surgery — and recommend what is genuinely best for you, whether you need a spine doctor for conservative care or a surgeon when surgery is truly the answer.
A rare dual credential — so the specialist who treats you can also perform surgery if it's ever needed.
Most patients get better without surgery. We only advance when your condition truly requires it.
No referral needed. We make it straightforward to see a top spine specialist, even out-of-network.
24/7 concierge response and close coordination with personal-injury attorneys.
See a dual board-certified spine surgeon and neurosurgeon in Phoenix to find out whether a minimally invasive microdiscectomy is right for you.
Book a Consultation — (602) 566-9500How is this different from a regular microdiscectomy?
Both remove the herniated fragment and relieve sciatica. The minimally invasive version uses a tube that splits the back muscles rather than cutting them, which can mean even less pain and a quicker recovery.
How fast will my sciatica improve?
Many patients feel significant relief of leg pain very soon after surgery, with numbness and weakness improving as the nerve heals.
Will I go home the same day?
Usually, yes. The small, muscle-sparing approach commonly allows same-day discharge.
Can the disc herniate again?
A small percentage re-herniate. We guide a sensible return to lifting and high-impact activity to reduce that risk.
Do I need a referral in Phoenix?
No. You can schedule directly with our Phoenix spine specialists, and we welcome out-of-network patients.




Dr. David L. Greenwald, MD
Neuro-Spine Surgeon


Call Now!
Desert Spine and Pain
A Spine Specialist is standing by.
Relief is just a phone call away!
Available Around the Clock.
Phone: (602) 566-9500
Email: [email protected]
Contact Us

If you’re suffering from persistent leg or back pain due to a herniated disc, a microdiscectomy may be the solution you’ve been searching for. Dr. Greenwald and his compassionate team will evaluate your condition and determine if this minimally invasive approach is right for you. Every step you take toward treatment brings you closer to relief, strength, and restored movement. Schedule your consultation today and discover how Dr. Greenwald’s surgical expertise can help you return to a more active, pain-free life.



Dr. David L. Greenwald, MD, FAANS, FACS, is a board-certified spine surgeon and neurosurgeon with advanced expertise in minimally invasive microdiscectomy. He commonly uses it to treat conditions such as herniated disc, sciatica, and disc extrusion, which can cause pain, numbness, or weakness. Using advanced, minimally invasive techniques whenever possible, Dr. Greenwald relieves nerve compression and instability while protecting healthy tissue and preserving spinal stability. His skill and patient-centered approach help patients throughout the greater Phoenix, Arizona area experience meaningful pain relief, reduced recovery time, and restored mobility.


Desert Spine and Pain
Patient Centered & Partner Focused
Quick Links
Resources
Connect With Us
21001 N Tatum Blvd SUITE 78 1640, Phoenix, AZ 85050
© Desert Spine and Pain. 2026. All Rights Reserved. Sitemap