Shockwave Therapy for Post-Surgical Scar Tissue
Shockwave Therapy for Post-Surgical Scar Tissue: Why Scars Keep Causing Problems Long After the Incision Heals — and What Actually Works
By Dr. Matthew Wilson, DC, FIACA | Ashworth Chiropractic, Physical Therapy & Acupuncture | West Des Moines, Iowa
The incision closed months ago. The surgery, by every clinical measure, was a success. And yet the area still feels tight, restricted, or tender — a pulling sensation with certain movements, a patch of skin that never quite regained normal sensation, or pain that seems to come from the scar itself rather than the structure the surgery actually repaired.
This is more common than most patients are told to expect, and it isn’t something you just have to live with. Scar tissue that continues to cause pain, restrict range of motion, or limit function months or years after surgery is a real, treatable clinical problem — and shockwave therapy has a growing evidence base specifically for it.
Why Scar Tissue Keeps Causing Problems Long After Surgery
When tissue heals after surgery, the body doesn’t rebuild the original tissue architecture. It lays down scar tissue — collagen fibers deposited in a dense, disorganized pattern rather than the organized, elastic structure of the tissue that was there before. That difference in structure is exactly why scar tissue can restrict movement, feel tight, and sometimes hurt: it’s less pliable, has reduced blood supply, and can adhere to surrounding structures — muscle, fascia, nerve — that were never meant to be bound together.
This process, called fibrosis, isn’t limited to the visible scar on the skin. It happens at every layer the surgery passed through, and scar adhesions deep in the tissue are frequently the actual source of ongoing symptoms, even when the visible scar itself looks unremarkable.
Once mature scar tissue has formed, it doesn’t reliably resolve on its own. Massage and physical therapy are the standard conservative approach, and they help many patients — but for established, fibrotic scar tissue, especially scarring involving deeper tissue layers, conservative treatment alone often has limited and inconsistent results. That gap — between what massage and stretching can accomplish and what a mature, adhered scar actually needs — is where shockwave therapy fits in.
Current conservative approaches to post-surgical fibrosis have limited and inconsistent efficacy in the literature, and there is little reason to expect these approaches to reverse tissue that has already become densely scarred. This is the group of people that shockwave therapy can help the most.
Shockwave Therapy for Post-Surgical Scar Tissue
Shockwave therapy delivers high-energy acoustic pulses directly into scarred tissue, producing effects that directly target the biology of fibrosis:
- Modulates fibroblast activity, the cells responsible for producing the excess collagen that makes scar tissue dense and inflexible
- Reduces expression of TGF-β1, a signaling protein directly implicated in driving fibrotic tissue formation, along with reductions in collagen-I and other fibrosis-related markers demonstrated at the cellular level
- Stimulates neovascularization, restoring blood flow to tissue that scar formation has left poorly supplied
- Softens and remodels dense collagen deposits, improving tissue pliability rather than just providing temporary stretch
- Reduces pain signaling at the scar site itself
In plain terms: massage stretches the scar. Shockwave works to change what the scar tissue is actually made of.
What the Clinical Research Shows
Post-Laminectomy Epidural Fibrosis — 60 Patients
A 2025 randomized controlled trial published in the Annals of Rehabilitation Medicine (Rashad et al.) studied patients with chronic low back pain and sciatica caused specifically by epidural fibrosis following lumbar laminectomy — scar tissue forming around the nerve roots after spine surgery. Sixty patients were randomized to receive shockwave therapy or standard care. The shockwave group showed measurable improvement in pain and lumbar range of motion compared to the control group.
Rashad UM, Abousenna MH, Elsamman AK, Rehab NI. Ann Rehabil Med. 2025;49(2):81-90. DOI: 10.5535/arm.240118.
Learn more about failed back surgery here.
Post-Reconstruction Fibrosis — 40 Patients
A 2025 single-blinded randomized controlled trial (Nguyen et al.) studied women with clinically diagnosed postoperative fibrosis following breast reconstruction — a well-documented complication that restricts shoulder and upper extremity mobility and causes chronic pain. Patients received either genuine shockwave therapy or sham treatment across eight sessions over four weeks. The shockwave group showed statistically significant improvement in fibrosis size, tissue softness, pain, and shoulder mobility compared to sham.
Nguyen AT, Chon J, Li RA, et al. J Plast Reconstr Aesthet Surg. 2025.
Nerve Injury and Hypertrophic Scarring After Burns — 120 Patients
A 2024 double-blind randomized controlled trial published in the International Journal of Surgery (Lee et al.) studied 120 patients with hand nerve injury and hypertrophic scarring following burns and surgical skin grafting. Notably, this study used the Duolith SD-1 device — the same device family as the Storz Duolith SD1 Ultra we use at Ashworth Chiropractic. The shockwave group showed significantly greater improvement in range of motion, pain scores, and hand function than the sham group.
Lee SY, Cho YS, Seo CH, Seo J, Joo SY. Int J Surg. 2024;110(12):7487-7494. DOI: 10.1097/JS9.0000000000002103.
Hypertrophic Scarring — 48 Patients
An earlier randomized, double-blinded trial (Joo et al.) studied 48 patients with hypertrophic scarring of the hand following skin grafting after burn injury. Shockwave therapy significantly improved pain scores, scar thickness, and scar vascularity compared to sham treatment, along with measurable improvements in hand function.
Joo SY, Lee SY, Cho YS, Seo CH. J Clin Med. 2020;9(5):1376. DOI: 10.3390/jcm9051376.
CuraMedix / Storz Medical Clinical Data
CuraMedix, the U.S. distributor for Storz Medical — whose Duolith SD1 Ultra we use at Ashworth Chiropractic — reports an over 80% patient satisfaction rate across treated musculoskeletal conditions, consistent with the outcomes shown in the post-surgical scar tissue literature above.
★ What the research consistently shows across post-surgical scar studies:
- Measurable improvement in range of motion at joints restricted by adherent scar tissue
- Reduced pain originating from the scar site itself, not just the surrounding area
- Improved tissue pliability and softness, verified by both clinician-rated and objective ultrasound measurement in some studies
- Cellular-level evidence of reduced fibrotic activity, not just symptomatic improvement
- Results demonstrated across multiple types of surgical scarring — spine surgery, breast reconstruction, and burn-related skin grafting
Why Shockwave Is Worth Considering Even Long After Surgery
A common assumption is that if a scar hasn’t resolved within the first year, nothing further can be done about it. The research above doesn’t support that assumption. Mature, established scar tissue is exactly the kind of tissue shockwave therapy is built to affect — it works at the level of the fibroblasts and collagen structure that make a scar what it is, not just the superficial tightness that stretching addresses. Patients who were told their post-surgical tightness, restricted motion, or scar-related pain was simply something to live with are often reasonable candidates for evaluation.
What to Expect at Ashworth Chiropractic
We use the Storz Medical Duolith SD1 Ultra — true focused shockwave, from the same device family used in several of the studies above.
- Initial evaluation to assess the scar tissue directly — its depth, mobility, involvement of underlying structures, and how long it’s been present
- A session count determined by your specific presentation, not a preset package — we’ll walk you through what your case is likely to need before you commit to anything
- Each session is brief, with no anesthesia and no downtime
- Coordinated with chiropractic or physical therapy when appropriate, particularly when scar tissue restriction is contributing to a compensation pattern elsewhere in the body
Common Questions About Shockwave for Post-Surgical Scar Tissue
How long after surgery can shockwave therapy be used on a scar?
The research above covers scars ranging from months to well over a year old. There isn’t a strict cutoff, but the tissue generally needs to be fully healed with no signs of active infection or wound complication. We’ll assess your specific timeline and healing status at your evaluation.
Will this work on a scar that’s been there for years?
Often, yes. Mature scar tissue is exactly what shockwave therapy targets at the cellular level. Patients are sometimes surprised that a scar can still respond to treatment years after surgery, but the underlying fibrotic tissue doesn’t stop being treatable just because time has passed.
Is this only for visible, external scarring?
No. Some of the most functionally significant scar tissue is internal — adhesions around a nerve root after spine surgery, fibrosis in deeper tissue layers after reconstruction — and isn’t necessarily visible at the skin surface at all. Shockwave therapy targets the tissue based on location and depth, not just what’s visible externally.
Will my insurance cover this?
Most insurance carriers in the United States do not currently cover ESWT. We’re upfront about this. Pricing and session options are covered clearly at your evaluation, before you commit to anything.
Can shockwave be combined with chiropractic or physical therapy?
Yes, and it frequently is. When scar tissue restriction has led to a compensation pattern elsewhere — altered movement, guarding, secondary tightness in adjacent areas — addressing that alongside the scar tissue itself is part of a thorough plan.
Learn More about Shockwave Therapy and the many conditions it can treat.
Clinical References
The following peer-reviewed studies were retrieved from PubMed and cited in this article. All DOIs link to the original published research.
- Rashad UM, Abousenna MH, Elsamman AK, Rehab NI. Effect of Extracorporeal Shock Wave Therapy on Post-Laminectomy Lumbar Epidural Fibrosis. Ann Rehabil Med. 2025;49(2):81-90. DOI: 10.5535/arm.240118
- Nguyen AT, Chon J, Li RA, Melnick BA, Abu-Romman A, Laiwalla R, Adam TH, Galiano RD. Extracorporeal shockwave therapy improves post-breast reconstruction fibrosis: A randomized controlled blinded clinical trial. J Plast Reconstr Aesthet Surg. 2025. Read on ScienceDirect
- Lee SY, Cho YS, Seo CH, Seo J, Joo SY. Clinical utility of extracorporeal shock wave therapy in restoring hand function of patients with nerve injury and hypertrophic scars due to burns: a prospective, randomized, double-blinded study. Int J Surg. 2024;110(12):7487-7494. DOI: 10.1097/JS9.0000000000002103
- Joo SY, Lee SY, Cho YS, Seo CH. Clinical utility of extracorporeal shock wave therapy on hypertrophic scars of the hand caused by burn injury: a prospective, randomized, double-blinded study. J Clin Med. 2020;9(5):1376. DOI: 10.3390/jcm9051376
About the Author
Dr. Matthew Wilson, DC, FIACA, CCWP is the owner and lead clinician at Ashworth Chiropractic, Physical Therapy & Acupuncture in West Des Moines, Iowa. He is a Palmer College of Chiropractic honors graduate with advanced certifications in Graston Technique, Postural Restoration, functional medicine, acupuncture, laser therapy, and dry needling. He selected the Storz Medical Duolith SD1 Ultra for Ashworth Chiropractic after extensive evaluation of the shockwave market.