Osteoarthritis (OA) affects an estimated one in five dogs over one year old. By the time a patient reaches the geriatric stage, OA rarely shows up alone. It coexists with renal disease, hepatic compromise, cognitive dysfunction, and the cumulative physiologic toll of age.
For these patients, the clinical question changes. It is no longer "how do we cure this?" It is "how do we keep this animal comfortable and functional for as long as possible?" This shift from curative intent to palliative intent is the organizing principle behind how geriatric pain management should be structured, according to a detailed clinical overview in Veterinary Practice News by Dr. Tyler Carmack, director of hospice and palliative care for Caring Pathways and a board member of the International Association for Animal Hospice and Palliative Care.
The Case for Going Multimodal Early
Single-agent therapy is rarely enough as OA progresses. The pathophysiology spans peripheral nociception, central sensitization, neuropathic components, and ongoing inflammation. Each responds best to its own pharmacologic class. Multimodal analgesia uses lower doses of multiple agents targeting different points along the pain pathway, which reduces the burden on any single organ and matters especially in geriatric patients already managing liver or kidney concerns.
For most dogs, a maintenance NSAID forms the foundation, with options including carprofen, meloxicam, and grapiprant, a prostaglandin receptor antagonist. When that foundation begins to plateau, adjunctive options expand the plan. Gabapentin addresses the neuropathic component that often emerges in chronic OA. Amantadine helps unwind central sensitization when a previously effective NSAID starts losing ground. Anti-nerve-growth-factor monoclonal antibodies, bedinvetmab for dogs and frunevetmab for cats, have extended what practices can offer, with a tolerability profile suited to older patients and particular value in cats where long-term NSAID use is constrained by renal considerations.
The integrative layer adds meaningful depth. Acupuncture, photobiomodulation, and pulsed electromagnetic field therapy each provide analgesic and anti-inflammatory effects through pathways that do not tax the kidneys or compete with the patient's existing drug load. A weekly laser session does not replace the NSAID. It expands what the NSAID can accomplish and gives families something concrete and low-risk to do between clinical visits.
Exercise and the Home Environment as Treatment
The most underused intervention in geriatric OA, Dr. Carmack argues, is structured movement. When owners watch their dog limp after a walk, the instinct is to restrict activity. In practice, less movement usually makes the joint worse, not better: disuse atrophy, proprioception loss, and weight gain accelerate joint decline faster than the underlying disease. Similar reasoning is showing up across other efforts to help aging dogs stay mobile and stay home longer, where structured activity and monitoring, not rest, tend to be what preserves function.
Prescribing exercise like a medication changes the dynamic. Two to three short leashed walks per day on level ground, adjusted based on how the patient responds, preserves muscle and mobility without overtaxing compromised joints. Underwater treadmill therapy offloads joints while rebuilding muscle where it is available. For cats, low accessible perches, food puzzles that require movement, and brief play sessions serve the same function.
Weight management sits alongside exercise as one of the most impactful analgesic tools a practice can deploy. Research has shown that even modest weight reduction in an overweight OA patient produces improvements in lameness comparable to those achieved with an NSAID. Most owners do not connect feeding choices to pain relief. Making that connection explicit gives them something meaningful to do, which counters the helplessness that often accompanies a chronic, progressive diagnosis.
Environmental modifications complete the picture: nonslip runners on hardwood floors, raised food and water bowls, orthopedic bedding, and ramps for cars and furniture. These turn the household itself into a therapeutic environment and extend the benefit of clinical care between visits.
Putting this into practice starts with a baseline. Validated tools like the Canine Brief Pain Inventory or the Feline Musculoskeletal Pain Index turn follow-up visits into a real measure of change instead of an impression, and a written acute-flare protocol, a pre-dispensed emergency analgesic kit with gabapentin and acetaminophen for dogs or oral transmucosal buprenorphine and gabapentin for cats, turns a bad night into a manageable event rather than an after-hours call. The families who feel most prepared when the disease progresses are usually the ones who started the quality-of-life conversation early, before it was urgent, and who had a way to see how their pet was actually doing at home rather than only in the exam room, where stress can mask how a patient really moves and functions day to day.
Geriatric pain management is some of the most rewarding work in small animal medicine. When it is done well, patients move better, families feel supported, and the relationship that brought them through the door is honored all the way to the end.