Femoral head ostectomy, or FHO, is the small-dog and cat answer to a hip the joint can no longer support, and it sits in the $1,200 to $3,000 per-hip band on the cited cost data [CareCredit: Dog Hip Dysplasia Surgery Cost, 2025]. The surgeon removes the head of the femur and lets a fibrous false joint form in its place. It is the procedure owners reach for when the patient is light enough that a false joint carries the load, which is why it shares a population with the luxating-patella cases that drive the most-searched small-breed orthopedic bill.
The cost owners get caught by is not the number on the FHO estimate. It is the fork above it.
The cost range
FHO priced at a general practice on a small-breed dog or a cat runs near the floor of the cited $1,200 to $3,000 per-hip range; the same procedure at a specialty orthopedic hospital, with pre-surgical imaging and a board-certified surgeon's fee schedule, runs toward the ceiling [CareCredit: Dog Hip Dysplasia Surgery Cost, 2025]. The per-hip framing matters for the same reason it matters on patella repair: the hip conditions that lead to FHO (Legg-Calvé-Perthes disease, chronic luxation, a failed fracture) are bilateral in a documented fraction of cases, and a second hip stacks a second bill in the same band.
Why the price varies
Three factors set where in the cited range a specific FHO case lands.
Patient size is the first, and it cuts the opposite way from most surgery. FHO works because the patient is light: a 12-pound dog or a cat forms a serviceable false joint, so general practitioners perform the procedure routinely and price it near the floor. A 60-pound dog is a poor FHO candidate, because the false joint cannot carry the load, which pushes that patient toward the far more expensive replacement track described below.
The venue is the second. A general-practice FHO in a low-cost geography sits near the $1,200 floor. A specialty hospital in a high-cost metro adds imaging, a specialist fee, and a longer anesthetic protocol that stack toward the $3,000 ceiling.
The rehab is the third and the most underestimated. FHO outcomes depend heavily on post-operative physical therapy to build the false joint correctly, and a course of rehab, not always quoted on the surgical estimate, adds several hundred dollars that owners rarely budget for.
FHO sits in the cited $1,200–$3,000 per-hip band; a total hip replacement is the most expensive hip-surgery option, sitting at the top of the cited $800 to $10,000-plus dog hip-surgery range [CareCredit: Dog Hip Dysplasia Surgery Cost, 2025]. The fork is not price-shopping; it is patient weight. Light patients get FHO; heavy, athletic dogs that need a load-bearing joint get the replacement. An owner quoted FHO on a large breed should ask which procedure the surgeon recommends, because the cheaper line item is not always the indicated one.
What a policy would have covered
FHO is an orthopedic surgical claim, which means it lands behind the longest waiting period in most accident-and-illness policies. A buyer who bought a policy ahead of the first sign of lameness, and cleared the orthopedic wait before any note appeared in the chart, has the repair classed as a payable orthopedic claim at the chosen reimbursement rate after the deductible. The same orthopedic-wait timing rule that governs patella repair and hip dysplasia governs FHO, because carriers underwrite all three as orthopedic conditions.
On a $2,000 FHO at 80% reimbursement and a $500 annual deductible, the policy returns about 80% of the $1,500 above the deductible, roughly $1,200, leaving the owner near $800. At 90% reimbursement on the same bill the policy returns closer to $1,350. The reimbursement scales with the bill, which is the structural reason a policy beats a fixed savings target most on the bilateral or specialty-hospital cases at the top of the range.
The timing trap is the same one that catches patella buyers. The conditions that lead to FHO often show as a subtle early limp the owner mentions at a routine visit. Under the NAIC Pet Insurance Model Act, a pre-existing condition is one for which advice or treatment was received before the policy date or during a waiting period [NAIC: NAIC Passes Pet Insurance Model Act, 2022]. A single charted note of hip soreness before the orthopedic wait clears can class the whole FHO claim as pre-existing and exclude it. For an at-risk small breed, the load-bearing term is whether the orthopedic wait cleared before the first limp, not the headline premium.
The bottom line
FHO is a per-hip expense in the $1,200 to $3,000 band on the cited cost data, and it is the small-patient answer to a hip that can no longer carry load. The decision above the price is FHO versus a far more expensive total hip replacement, and it is set by the patient's weight, not by price-shopping. The decision under the price is insurance timing: a policy past the orthopedic wait, bought before the first charted limp, is what turns a $2,000 bill into an $800 one. An owner of an at-risk small breed, the same population that carries patella risk, should treat orthopedic-wait clearance as the term that matters and read the puppy-policy timing guide before the first limp ever shows. This page is reviewed every 180 days and on any cited cost-data change.