Hip Replacement Recovery in Dogs: THR Post-Op Rehabilitation Guide

What Total Hip Replacement Actually Replaces

Canine total hip replacement (THR) is the surgical exchange of a damaged hip joint for an artificial one. The femoral head is removed and a stainless-steel or titanium ball-and-stem prosthesis is implanted into the hollowed-out femur. The acetabulum is reamed and a polyethylene cup is fixed into the pelvis with bone cement, screws, or a press-fit textured surface. The result is a smooth, durable, near-normal-feeling hip joint that bears full athletic load.

THR is the gold-standard salvage for severe hip dysplasia, end-stage hip arthritis, irreducible coxofemoral luxation, severe femoral head and neck fractures, and selected cases where Legg-Calve-Perthes in dogs has destroyed the joint. It is performed almost exclusively by ACVS surgeons at specialty hospitals because the precision required — implant sizing, alignment, and cementing technique — is unforgiving. Cost typically runs in the thousands-of-dollars range per hip, and bilateral cases are usually staged three to six months apart.

If you are still in the decision phase, the broader background on dog hip dysplasia and the alternative procedure covered in FHO femoral head ostectomy recovery are worth reading side-by-side. The surgeon will help you weigh THR’s better long-term gait against FHO’s lower cost and complication rate.

The First Forty-Eight Hours After THR

Your dog is hospitalized for one to three days after THR — longer than for FHO or TPLO — because the implant is at maximum risk of luxation in the first 48 hours and requires careful supervision. Discharge analgesia is multimodal: an opioid such as a fentanyl patch or buprenorphine for dogs in the early window, an NSAID like carprofen for dogs or Onsior for dogs for inflammation, and gabapentin for dogs for nerve-pain coverage. Some surgeons add tramadol for dogs for breakthrough pain.

Confine the dog to a small room with non-slip flooring and absolutely no slick surfaces. The single biggest fear in the early THR window is implant luxation — the prosthetic ball popping out of the cup — usually triggered by a slip, a jump, or sudden lateral movement. Block stairs with a baby gate, sling-support every step outside, and skip the typical TPLO recovery cone game for a more secure setup. The e-collar alternatives for pets guide can help if a hard cone is impossible.

Watch the incision twice daily. A long incision tracks down the side of the hip; expect normal mild bruising, light swelling, and a thin red line. Sudden severe swelling, gaping edges, active drainage, or a leg suddenly held off the ground at an odd angle warrants an immediate emergency call.

Weeks One Through Six: Strict Rest Phase

THR demands the most disciplined recovery of any common canine orthopedic surgery. The artificial joint capsule that holds the prosthetic ball in the cup needs roughly six weeks to scar in firmly, and a luxation event during that window is a near-certain return-to-the-OR situation. Confinement is non-negotiable: a small room or large crate with non-slip flooring, leashed bathroom breaks of two to three minutes only, and zero stair use unless the dog is sling-supported every step.

The sling matters. A simple folded towel under the belly or a commercial hip-lift harness lets you provide active support during every transition — getting up, getting outside, and turning around. Slick floors are forbidden, as is access to couches, beds, and stairs. A dog who jumps off a bed at week four can dislocate the hip in a single movement.

Suture removal is at 10 to 14 days. The e-collar stays on continuously through that point. Most surgeons want a four-week recheck with radiographs to confirm proper implant position and to start very gentle controlled walking.

Weeks Six Through Twelve: Controlled Reactivation

The six-week recheck is the milestone owners are waiting for. If radiographs show the implant in good position and the joint capsule has scarred in, the surgeon will release the dog to gradually longer leashed walks, controlled passive range-of-motion exercises, and the early reintroduction of a measured rehab plan. A certified canine rehabilitation practitioner is invaluable here — the goal is to rebuild the gluteal and quadriceps musculature that wasted during six weeks of strict rest.

Underwater treadmill sessions, weight-shifting drills, sit-to-stand reps, and gentle cavaletti exercises become the daily focus. Walks lengthen weekly, but stairs remain restricted, and off-leash activity is still off-limits. Pain medications continue at the surgeon’s direction; stopping NSAIDs early is a leading cause of inflammatory flare-ups that look like complications but are simply under-treated joint inflammation.

Dogs at this stage may seem like they have fully recovered. Resist the temptation to relax. The joint capsule continues to mature for several months, and the four-month mark — not the three-month one — is when most surgeons release dogs to truly normal activity.

Months Three Through Six: Return to Athletic Function

By the 12-week recheck, most THR dogs are walking close to normally for 20 to 40 minutes at a time. The next 12 weeks gradually rebuild full athletic capacity — longer walks, gentle hill work, supervised off-leash time in fenced yards, and eventually return to retrieve, hike, or sport-specific training. Working dogs often need formal rehab through the four- to six-month mark to regain the topline and core strength lost during recovery.

Most dogs achieve a near-normal gait long-term, distinctly better than FHO outcomes for large breeds. Many surgeons describe THR success as “you would not know which hip was operated on” — a level of recovery the procedure achieves more reliably than any other major canine orthopedic surgery. That said, lifetime activity restrictions are debated: many surgeons recommend avoiding extreme high-impact activities like agility competition, while others release fully recovered dogs to all activities.

Discuss your specific dog’s release criteria with the ACVS surgeon. Body size, age, conformation, and the surgeon’s prosthesis-specific data all factor in.

Recognizing Complications Early

Implant luxation is the most feared early complication, occurring in a meaningful minority of cases (roughly 5 to 10% in published series). It usually presents as a sudden, severe non-weight-bearing lameness, often after a slip or a jump. The dog cannot put any weight on the leg and may yelp when handled. Reduction under anesthesia or revision surgery is the treatment — this is an emergency call to your surgeon.

Surgical-site infection is the next most concerning complication. Infections can present early (days to weeks, with redness and drainage) or late (months to years, with subtle lameness and sometimes draining tracts). Late infections are particularly difficult and may require implant removal. Any persistent or new lameness in a previously normal THR dog warrants imaging and a culture.

Sciatic neuropraxia from intraoperative stretching can cause temporary weakness in the lower limb that usually resolves over weeks. Femoral fracture during or shortly after surgery is uncommon but serious. Aseptic loosening of the implant is a long-term complication that may emerge years later as gradually worsening lameness.

Pain Management Through Recovery

Multimodal analgesia is the standard. Most THR patients leave the hospital on an NSAID, gabapentin, and a short opioid course, transitioning over the first month to NSAID-plus-gabapentin and ultimately to an NSAID alone or off all medication by the eight- to twelve-week mark. Each transition is decided by the surgeon based on lameness scoring, comfort level, and bloodwork.

Never stop NSAIDs early on your own. The companion guide on post-op pain management protocols covers the multimodal logic in detail. If breakthrough pain emerges — restlessness, panting, refusal to lie down, or a sudden refusal to use the leg — call the surgeon rather than waiting for the next recheck.

For very large dogs or dogs with concurrent joint disease elsewhere, layering in long-term joint-care medications such as Galliprant for dogs and periodic Adequan for dogs injections supports the contralateral hip and other working joints.

Nutrition and Lifelong Joint Care

Weight is the single most important modifiable factor in long-term THR outcomes. A dog that comes in overweight should leave on a calorie-restricted plan supervised by your vet. Most surgeons aim for a body condition score of 4 to 5 out of 9 by the end of recovery and lifelong thereafter. Excess weight increases prosthesis loading and accelerates aseptic loosening over years.

Recovery feeding starts gently. The first 24 hours after general anesthesia can bring nausea, especially in larger dogs that received longer anesthetic protocols; Cerenia for dogs may be used if appetite is slow. The companion guide on post-op feeding and nutrition walks through early intake, hydration, and recovery diets in more depth.

Lifelong joint supplements — Cosequin for dogs or Dasuquin for dogs, omega-3s, and periodic Adequan — protect the contralateral hip and other working joints and are inexpensive insurance against compensatory disease.

Adopting a Post-THR Dog

Rescues sometimes place dogs that have already had THR surgery, either fully recovered or still in rehabilitation. A dog with a healed THR is functionally a normal dog with a near-normal life expectancy and exercise tolerance. Ask the rescue for the surgical report, post-op radiographs, and any rehab notes so your vet has a clean baseline.

The home setup mindset is similar to other orthopedic adoptions: non-slip flooring, ramps for furniture access, calm household, and consistent weight management. The same principles in adopting a dog with hip dysplasia and the broader hip dysplasia background of dog hip dysplasia apply.

For dogs with concurrent orthopedic concerns, the related guide on dog luxating patella and adopting a dog with elbow dysplasia may also be useful.

Frequently Asked Questions

How long is full recovery after canine hip replacement?

Most dogs reach functional recovery by 12 weeks and full athletic recovery by 4 to 6 months. The first 6 weeks are strict rest with non-slip flooring and sling support; weeks 6 to 12 are graduated return to walking and rehab; months 3 to 6 rebuild full activity capacity.

What is the risk of implant luxation?

The luxation rate in published ACVS series ranges around 5 to 10%, with most events occurring in the first six weeks after surgery. Strict confinement, non-slip flooring, sling support, and avoidance of stairs and slick surfaces during the early weeks are the most important prevention measures.

Will my dog need lifelong activity restrictions after THR?

Most surgeons release fully recovered THR dogs to normal walks, hikes, and recreational play. Whether to release to extreme high-impact activities like agility competition is debated and surgeon-specific. Lifelong weight management and joint care are universally recommended.

How does THR compare to FHO?

THR produces a more biomechanically normal hip joint and superior long-term gait, particularly for large dogs. FHO is less expensive, has lower complication rates, and works well for cats and small-to-medium dogs. Your ACVS surgeon will recommend the right procedure based on body size, conformation, owner finances, and goals.

Can both hips have THR?

Yes — bilateral THR is performed in dogs with bilateral severe disease, but the two surgeries are almost always staged three to six months apart so each side can fully recover before the other is operated on. Same-session bilateral THR is rarely performed because of the increased anesthetic and recovery burden.