seven year old labrador male with a confirmed complete cranial cruciate ligament rupture on the right stifle diagnosed this monday, primary care vet has referred us to a board certified surgeon for TPLO consultation and our rehab vet has separately offered a structured conservative management protocol, looking for the version of this decision from families and vets who have specifically walked through the seven to nine year old large breed dog presentation because the published material conflates the young dog and senior dog versions of this call

Murphy is a seven year old neutered labrador male, eighty four pounds at a fit body condition score of five out of nine, no orthopedic history before this week, no pre existing conditions, no NSAID contraindications, generally an active family dog who hikes with us most weekends and does a structured obedience class once a week. Monday morning he came in from the yard with a partial weight bearing limp on the right hind, our primary care vet saw him within four hours, ran a drawer test that was clearly positive, took rads that confirmed soft tissue swelling consistent with a complete cranial cruciate ligament rupture without obvious meniscal involvement on the views available, and referred us to the regional veterinary surgery group for a TPLO consultation. We have the surgical consult booked for thursday this week. Separately our long time rehab vet who has known Murphy for four years saw him tuesday and offered to run a structured conservative management protocol if we wanted that as the path, with the honest caveat that she would expect partial recovery and ongoing low grade lameness rather than full return to function.

What the published material does not address well for our specific case. The available content on cranial cruciate ligament rupture in dogs almost universally splits into two framings, the young large breed dog where TPLO is the clear answer because they have a decade plus of work ahead and the joint mechanics need to be restored to support that, and the senior dog where conservative management often makes sense because the surgical recovery is hard on the dog and the joint will not be loaded heavily again anyway. Murphy at seven sits in the middle of those framings and the published material does not have a clear answer for the middle. He has half a decade of active life ahead of him if his orthopedic health holds, his body condition and muscle mass are excellent right now, his contralateral stifle is currently clean but the literature is clear that the second cruciate goes within twelve to twenty four months in roughly half of these dogs, and the conservative management option carries the risk that we manage this one and then face the same call with worse muscle mass and worse body condition when the second one goes.

What our surgeon consultation is going to ask us about and what our rehab vet has already asked. The surgical consult thursday will cover the TPLO option specifically, recovery timeline, expected functional return, meniscal exploration during the procedure, post op rehab requirements, costs in the eight to ten thousand range for the procedure plus rehab. Our rehab vet has offered a six month structured conservative protocol with controlled exercise restriction, targeted muscle building work, hydrotherapy twice a week, and joint support medications, with reassessment at three months and six months and a clear understanding that if the response is not adequate at three months we are converting to surgery anyway and have lost time and muscle mass in the meantime. Both vets are people we trust and both presentations are honest about the tradeoffs.

The questions i need answered before thursday. one, for families with a seven to nine year old large breed dog who chose TPLO, what did the recovery look like in practice versus what you were told to expect, and did you have any regret about the choice at the six month or one year mark. two, for families who chose conservative management at this age, what did the partial recovery actually feel like for the dog at month six and month twelve, and would you make the same call again knowing what you know now. three, for vets and surgeons reading this, the contralateral stifle question is the piece that weights toward surgery in my reading, am i overweighting that risk because the published statistics are scary or is that the actual load bearing consideration at this age. four, the meniscal exploration question, our rads did not show clear meniscal involvement but our primary care vet said you cannot fully rule it out without surgical exploration, how should that uncertainty factor into the conservative management option, and is there a path where we run conservative for three months and then if the meniscus is involved we end up worse off than if we had gone straight to surgery. Murphy is a wonderful dog and we want to make this call well, happy to provide more detail on his bloodwork and his functional status this week, looking for the version of this advice that comes from people who have specifically walked through the middle age large breed presentation