Percutaneous Laser Disc Ablation (PLDA) in Dogs
Percutaneous Laser Disc Ablation (PLDA) in Dogs — what it is and how it helps with IVDD and rehab
If your dog has had a slipped disc (intervertebral disc disease, or IVDD), you’ve probably heard how scary and sudden it can be. PLDA — percutaneous laser disc ablation — is a minimally invasive procedure many veterinarians use to reduce the chance of future disc ruptures in dogs that are at high risk. Below is a clear, owner-friendly overview of what PLDA is, which dogs are candidates, how well it works, and how it can make rehabilitation for IVDD more successful.
What is PLDA, in plain language?
PLDA is a minimally invasive procedure in which tiny needles are placed through the skin into selected intervertebral discs while the dog is under anesthesia. A fine laser fiber is passed through each needle and a controlled amount of the disc’s inner material is vaporized. Removing a small volume from the disc nucleus lowers the internal pressure and reduces the chance that the disc will later rupture and compress the spinal cord. The procedure is performed under imaging guidance to ensure accurate needle placement. (dvsc.com)
Which dogs are good candidates?
PLDA is most commonly considered for dogs that:
Are chondrodystrophic or chondrodystrophoid breeds (breeds prone to early disc degeneration) such as Dachshunds, French Bulldogs, Beagles, Basset Hounds, Corgis and others. These breeds are at higher lifetime risk of IVDD.
Have had one or more prior thoracolumbar disc herniations and have recovered sufficiently from that event. PLDA is often done after recovery from an acute episode, not during the emergency. (vscstillwater.com)
Are medically stable for anesthesia and whose owners understand PLDA is preventive, not a cure for current severe compression that requires decompressive surgery.
Not every dog with IVDD should or needs PLDA — candidacy depends on breed, prior history, imaging, overall health and owner goals.
When is PLDA performed (timing & pre-op checks)?
Best practice is to wait until a dog is fully recovered from the most recent episode (typically several weeks) before electing PLDA. Your veterinarian will often recommend imaging (radiographs ± advanced imaging as indicated) and a neurology or surgery consult to decide which disc spaces to treat. Choosing an experienced surgeon and a facility familiar with the technique reduces risk and improves the chances of good results. (vscstillwater.com)
What does the research say about effectiveness and safety?
The largest early case series (hundreds of dogs) showed that PLDA can reduce future clinically significant herniations at treated disc spaces and that the procedure is generally feasible with an acceptable complication profile when performed by experienced teams. Complications do occur but are relatively uncommon. (PubMed)
Later studies and follow-ups reported high owner satisfaction and improvement immediately after PLDA in most treated dogs, with a relatively low recurrence rate at treated sites — but not zero. One multi-center review reported that most owners reported their dogs were improved or the same after PLDA, and that recurrence at untreated or inadequately treated levels was a reason for some complications. (AVMA Journals)
More recent, prospective examinations have evaluated how PLDA changes discs and nearby structures on imaging and how those changes correlate with clinical outcomes, supporting that PLDA produces measurable disc changes and is correlated with good clinical results in many dogs. (PubMed)
Bottom line from the literature: PLDA is supported by multiple clinical case series and prospective evaluations as a reasonable preventive option in carefully selected dogs, but it is not a guarantee against all future disc problems. (PubMed)
Risks and possible complications
Although PLDA is minimally invasive, possible risks include:
Post-operative pain or transient neurologic signs
Infection (rare)
Bleeding or nerve irritation
Incomplete treatment of a specific disc (which can allow recurrence at that level)
Anesthesia risks (as for any procedure)
Experienced teams and good perioperative protocols help keep these risks low. Owners should discuss specifics and complication rates with the surgeon performing the procedure. (PubMed)
Long-term outcomes — what owners can realistically expect
Many dogs treated prophylactically with PLDA experience fewer subsequent clinically significant disc herniations at treated sites over the long term, and most owners in published series report their dogs improved or remained clinically stable. However, no procedure eliminates risk completely. (PubMed)
Success depends on selecting the correct disc spaces to treat, performing the technique properly, and ongoing attention to lifestyle and weight management. Some dogs still develop problems at untreated levels or if a treated level was not fully ablated. (AVMA Journals)
How PLDA helps rehabilitation programs for dogs with IVDD
PLDA and rehabilitation make a strong team:
Reduced re-injury risk: If PLDA lowers the chance of a repeat herniation at treated discs, the dog is less likely to have a catastrophic setback that halts rehab progress. That makes long-term rehab plans (strength, proprioception, core work) more effective. (DVM360)
Better continuity of care: Dogs who avoid repeat surgeries can continue progressive rehabilitation and conditioning without long interruptions for repeat emergencies or major decompressive surgery.
Improved confidence for owners and therapists: When the risk of re-herniation is reduced, owners are often more comfortable with graduated exercise programs, underwater treadmill work, and strengthening protocols — all of which improve functional outcomes. Rehabilitation remains essential even after PLDA to maximize mobility, muscle mass and spinal support. (Fitzpatrick Referrals)
In short: PLDA can lower the chance of new acute events that set rehab back, letting rehab do what it’s meant to do — restore strength and function progressively.
Practical questions owners ask
Will my dog need PLDA after a single disc episode? Not always. The decision depends on breed, how severe the episode was, whether the dog is likely to have more disc disease, and owner goals. A neurology or surgery consult helps decide.
Is PLDA a replacement for decompressive surgery? No. PLDA is preventive for at-risk discs. If a disc is currently compressing the spinal cord and causing severe neurologic deficits, decompressive surgery (hemilaminectomy, ventral slot, etc.) is the appropriate emergency treatment.
How long is recovery after PLDA? Recovery is generally quicker than open surgery because PLDA is minimally invasive, but dogs do need a period of rest and a gradual return to activity per your surgeon’s instructions. Rehabilitation can often begin as recommended to speed recovery and restore function.
How much does PLDA cost? Costs vary with region and facility. Ask your clinic for an estimate that includes pre-operative evaluation, anesthesia, the procedure and post-op visits.
How we evaluate your dog with IVDD at RVM:
Full neurologic exam and medical history review.
Review of imaging (radiographs or advanced imaging) and discussion of future IVDD risk.
Review of treatment options including medications, rehabilitation modalities, surgery and PLDA.
Coordinated plan so PLDA — if elected — is integrated with a tailored rehabilitation program.
Final thoughts
PLDA is a useful preventive tool for many dogs at high risk of IVDD — especially chondrodystrophic breeds and dogs that have had prior disc herniations. The published literature supports its use in carefully selected patients, and when combined with a structured rehabilitation program and good long-term management (weight control, activity modification), PLDA can improve a dog’s chances of staying comfortable and active long term. Talk with your veterinarian or a veterinary neurologist/surgeon to see whether PLDA is a reasonable option for your dog.
Sources and further reading (selected)
Bartels KE, et al. Outcome of and complications associated with prophylactic percutaneous laser disk ablation in dogs. (clinical case series). (PubMed)
Dugat D, et al. Recurrence of disk herniation following percutaneous laser disk ablation (JAVMA). (AVMA Journals)
Irizarry I, et al. Evaluation of perioperative changes and clinical outcomes after thoracolumbar PLDA (prospective study). (PubMed)
ACVIM consensus statement on diagnosis and management of thoracolumbar intervertebral disc extrusion (overview of modern IVDE care). (PMC)
Practical overviews & clinic pages describing technique and rehab integration (DVM360, veterinary specialty centers). (DVM360)