Study compares PRP, mesotherapy, and steroids in canine DLSS
Bottom line
A new retrospective study in Frontiers in Veterinary Science compared three minimally invasive treatment approaches for dogs with degenerative lumbosacral stenosis: intradermal mesotherapy, epidural platelet-rich plasma, and epidural methylprednisolone acetate. The study included 55 dogs, split into mesotherapy (30), PRP (15), and methylprednisolone (10) groups, with two treatment sessions given 15 days apart. All three approaches produced clinically meaningful improvement, but the PRP group showed the most durable benefit, maintaining significant pain-score improvements through 120 days, while mesotherapy and PRP both improved pain through 90 days. No adverse effects were reported. (frontiersin.org)
Why it matters: For veterinary professionals, the findings add to a growing body of evidence that conservative or interventional pain strategies may help selected dogs with lumbosacral disease, especially those with pain-dominant presentations and limited neurologic deficits. Degenerative lumbosacral stenosis is most often seen in large-breed dogs, diagnosis typically relies on advanced imaging, and epidural methylprednisolone has long been used as a nonsurgical option before surgery is considered for refractory pain or neurologic compromise. This study suggests PRP may extend the duration of benefit compared with steroid injection, but it’s still a small, retrospective comparison, so case selection, cost, availability, and the lack of standardized PRP protocols remain important in practice. (merckvetmanual.com)
What to watch: Prospective, randomized studies with longer follow-up will be needed to confirm whether epidural PRP should move ahead of steroid injection or mesotherapy in treatment algorithms for canine lumbosacral pain. (frontiersin.org)
Key facts
- Study type
- Retrospective study
- Journal
- Frontiers in Veterinary Science
- Condition
- Degenerative lumbosacral stenosis in dogs
- Sample size
- 55 dogs
- Treatment groups
- Mesotherapy (30), PRP (15), methylprednisolone acetate (10)
- Treatment schedule
- Two sessions, 15 days apart
- Main finding
- All three treatments improved pain, but PRP had the most durable benefit
- Follow-up
- PRP remained significant through 120 days; mesotherapy and PRP through 90 days
- Safety
- No adverse effects were reported
A newly accepted Frontiers in Veterinary Science study suggests epidural platelet-rich plasma may offer the most sustained short-term benefit among three minimally invasive options for dogs with degenerative lumbosacral stenosis. In the retrospective analysis of 55 dogs, investigators compared intradermal mesotherapy, epidural PRP, and epidural methylprednisolone acetate, and found that all three produced clinically significant improvement, but only the PRP group maintained significant pain-score gains through 120 days. No side effects were recorded in any group. (frontiersin.org)
That question matters because degenerative lumbosacral stenosis remains one of the more frustrating pain syndromes in canine practice. The condition is most common in large-breed dogs, especially German Shepherd Dogs, and can present with low back pain, pelvic limb weakness, tail weakness, or incontinence. Advanced imaging such as MRI or CT is generally needed for definitive diagnosis, and treatment decisions often hinge on whether the dog has pain alone or meaningful neurologic deficits. (merckvetmanual.com)
Historically, epidural corticosteroid injection has been a standard nonsurgical option for dogs with pain and minimal neurologic deficits. Merck Veterinary Manual notes that epidural methylprednisolone acetate can be effective in about 80% of such dogs, while surgery is generally reserved for refractory pain or neurologic impairment. At the same time, the literature base remains limited. Reviews of the field have repeatedly noted that evidence guiding treatment choice, including surgery versus nonsurgical care, is still relatively weak and heterogeneous. (merckvetmanual.com)
Against that backdrop, regenerative approaches have been drawing more attention. A 2021 study of retired working dogs reported clinical improvement after epidural PRP, positioning it as a possible alternative to steroid injection. The new 2026 Frontiers study builds on that signal by directly comparing PRP with both methylprednisolone and mesotherapy in a clinical cohort. According to the abstract, dogs were assessed with the Canine Brief Pain Inventory and Canine Orthopedic Index at baseline and at 15, 30, 60, 90, and 120 days after treatment. Mesotherapy used lidocaine, dexamethasone, and midazolam intradermally, while the other two groups received epidural injections. (pmc.ncbi.nlm.nih.gov)
The headline result is durability. Mesotherapy and PRP both significantly improved pain severity and pain interference through 90 days, but only PRP maintained that improvement at 120 days. General gait outcomes were similar across groups through the follow-up period. That makes the study clinically interesting, but not definitive. It was retrospective, group sizes were uneven, and the methylprednisolone arm was particularly small at 10 dogs. The article page also indicates the final formatted version is still pending publication, so fuller methodological details may yet add context around case selection and baseline severity. (frontiersin.org)
Industry and clinical commentary around lumbosacral pain has increasingly emphasized tailored, multimodal care rather than a one-size-fits-all approach. Reviews and educational pieces describe DLSS as a syndrome with variable pathology, where conservative management, focal injections, rehabilitation, and surgery may all have a role depending on imaging findings and neurologic status. More recent interventional pain literature has also explored newer injection techniques and has raised safety questions about corticosteroid selection, particularly the broader concern around particulate steroids such as methylprednisolone in some interventional settings, though direct veterinary evidence remains limited. That doesn’t invalidate steroid use in dogs, but it does help explain why clinicians are watching alternatives such as PRP and non-particulate steroid protocols more closely. (pmc.ncbi.nlm.nih.gov)
Why it matters: For veterinarians, this study adds practical evidence for discussing nonsurgical options with pet parents whose dogs have painful DLSS but may not yet be surgical candidates, or whose families are seeking less invasive care. PRP’s longer apparent duration could make it attractive in referral, sports medicine, rehabilitation, and pain-management settings, especially if it reduces the need for repeat interventions. But adoption will likely depend on access to PRP preparation, procedural expertise, cost tolerance, and better evidence on which patients benefit most. For general practice teams, the study is less a call to replace current care than a reminder that referral conversations around interventional pain management are expanding. (frontiersin.org)
What to watch: The next step is stronger comparative evidence, ideally prospective and randomized, with longer follow-up, standardized PRP preparation methods, and clearer stratification by neurologic status and imaging findings. If those data hold up, PRP could become a more established option between first-line medical management and surgery for canine lumbosacral pain. (frontiersin.org)