A second opinion on a joint replacement is only as good as the question you ask and the evidence you send with it. "Do I need surgery?" with no imaging attached gets a vague answer. Five focused questions, backed by a packet of records, get an answer you can act on. This page gives you both, and explains what to do when the two surgeons disagree.
When a second opinion earns its cost
Not every joint replacement needs one. It tends to be most useful when:
- surgery has been recommended but you haven't really tried the non-surgical options
- two clinicians have suggested different operations, for example a partial versus a total knee
- you've been told you're too young or too heavy for surgery, or the opposite. See the guides on replacement under 50 and age and BMI
- the proposed operation is a revision of an earlier replacement
- you're planning surgery abroad and want a home surgeon's view of the plan before you commit
The five questions
1. Do you agree with the diagnosis, and what shows it?
Ask the second surgeon to name the findings, on the X-rays and in the examination, that support the diagnosis. A useful answer points to specific features. A weak one simply repeats the first surgeon's conclusion.
2. Is replacement the right step now?
AAOS OrthoInfo lists the treatments usually tried before knee replacement: medicines including anti-inflammatories, walking supports, cortisone injections, lubricating injections, physical therapy and sometimes other surgery. Replacement is considered when these no longer help substantially. OrthoInfo also says recommendations are based on pain and disability, not on age (AAOS OrthoInfo, 2026). Ask which of these you've genuinely exhausted, and whether any is still worth a trial.
3. Which operation would you do, and why that one?
The question isn't only whether to replace the joint but how: total or partial knee, the type of implant, and for hips the surgical approach. If the second surgeon would do something different, ask what in your case drives that choice. Background reading: total vs partial knee and anterior vs posterior hip.
4. What would change your recommendation?
This is often the most revealing question. A surgeon who can say "if your pain eased with an injection" or "if your heart test came back abnormal" has thought about your case specifically, not just about the operation.
5. Which risks apply to me in particular, and what would you do about them?
OrthoInfo notes that people with conditions such as heart or kidney disease may need a specialist evaluation. It also says dental problems and recurrent urinary infections should be dealt with before surgery. Ask which of your own conditions matter, and what the surgeon would want done before operating.
The packet to send
| Document | Why it matters | Tip |
|---|---|---|
| X-ray images, plus any MRI | The second surgeon needs to see the images, not just read a summary | Ask for the image files on a disc or a download link, not just the report |
| Radiology reports | Show how the images were read the first time | Include the dates |
| Treatments tried, with dates and results | Answers question 2 directly | "Steroid injection, March, about six weeks of relief" is far more useful than "tried injections" |
| First surgeon's written recommendation | States exactly what's being second-guessed | Include the proposed operation and implant, if named |
| Medicine list and medical conditions | Answers question 5 | Include supplements |
| Your goals | What you want to be able to do again | Be concrete: stairs, a daily walk, kneeling, work duties |
| Your specific question | Keeps the review focused | One or two sentences |
From US providers you have a legal right, with few exceptions, to copies of your medical and billing records. A provider can't refuse because of an unpaid bill, and may charge reasonable copying and mailing costs but not a fee for searching or retrieval (HHS, 2025). Request the records early, because imaging copies are often the slowest part.
Frame the question so it can be answered
The same uncertainty can be asked about in a way that invites a useful reply or a vague one. Compare these two requests (illustrative only):
- Weak: "My surgeon says I need a new knee. Do I?"
- Useful: "Left knee, inner-side pain for three years. X-rays attached. I've had physical therapy and two steroid injections, the last giving about six weeks of relief. Surgeon A recommends a total knee. I'd like to know whether a partial is reasonable for me, and if not, what in the images rules it out."
The second version tells the reviewer what's already been tried, what's on the table and exactly where the doubt lies. It also makes it obvious if the reviewer's answer doesn't address the question.
What a useful written answer includes
When the opinion comes back, check that it covers:
- the diagnosis, and the findings that support it
- whether replacement is recommended now, later or not at all
- the specific operation, if one is recommended
- what would change the recommendation
- any tests or specialist reviews the surgeon wants first
If one of these is missing, ask a follow-up question. That's a reasonable request, not a complaint.
Build the request
Use the builder below to turn your notes into a short request you can paste into an email or an intake form. Keep it to one page. The packet carries the detail.
Send detailed records only through the provider's own clinical channel, never through a general enquiry form.
If the second opinion is in person
Bring the image files on a disc or USB stick, even if you've sent them ahead, because uploads sometimes fail to arrive. Wear clothing that lets the surgeon examine the joint easily. Bring your written list of treatments and medicines. If you can, bring someone to take notes while you listen, and ask the surgeon at the end to repeat their recommendation in a single sentence. Write that sentence down before you leave the room.
Paying for it
If you have Medicare, Part B covers a second opinion for medically necessary, non-emergency surgery. It also covers a third opinion if the first two differ. You pay 20% of the Medicare-approved amount after the Part B deductible, and the second doctor may order more tests (Medicare.gov, accessed 2026). Other insurers have their own rules, so check before booking. Self-pay reviews abroad should state their fee in writing.
When the two opinions disagree
Work out what kind of disagreement it is before deciding what to do about it:
- Diagnosis: the surgeons see different problems. Consider further imaging or a third opinion.
- Timing: both agree on replacement, but one would try another non-surgical step first. Ask what that step would show, and how long a trial is reasonable.
- Operation: both would operate, but differently. Ask each surgeon to respond to the other's reasoning.
- Risk: one surgeon wants more medical work-up first. That's rarely a reason to go with the surgeon who's ready sooner.
Whatever kind it is, don't settle the disagreement by picking the cheaper quote. Two quotes for different operations can't be compared until you know which operation is right.
Second opinions and surgery abroad
A remote review of images can be useful, but it isn't an examination. If a foreign surgeon gives an opinion from images alone, ask whether the plan could change after they examine you in person, and what happens to your booking if it does. The CDC Yellow Book (2026) also recommends talking to your home clinician well before travelling for care, which is a natural moment to ask them to review the plan.
Frequently asked questions
Will my surgeon be offended if I get a second opinion?
Asking for one is a normal part of deciding on elective surgery. You can simply say you want to be confident in the decision, and ask the office to release your images and notes.
Does Medicare pay for a second opinion on joint replacement?
Medicare Part B covers a second opinion for medically necessary, non-emergency surgery, and a third if the first two differ. The usual deductible and 20% coinsurance apply.
Will I need new X-rays?
Possibly. The second surgeon may want additional or more recent images. Sending your existing image files first can avoid unnecessary repeats.
Can a second opinion be done remotely?
A remote review of images and records can answer some of the five questions, especially about the diagnosis and the proposed operation. It can't replace a physical examination, so ask how much the opinion could change after an in-person visit.
What if the second surgeon recommends a different operation?
Ask each surgeon to explain the reasoning behind their choice and to respond to the other's view. If they still disagree, a third opinion is reasonable, and Medicare covers one in that situation.
Compare a joint replacement plan or quote
Start with the joint, side, destination preference and timing. You do not need to upload the full medical record here.
Related joint-replacement guides
Orthopedic lead network
- AAOS OrthoInfo — Total Knee Replacement (2026)
- HHS — Your Medical Records (reviewed 2025)
- Medicare.gov — Second surgical opinions (accessed 2026)
- CDC Yellow Book — Medical Tourism (2026 edition)
These sources support general education about joint replacement and medical travel. They do not establish a personal diagnosis, treatment recommendation, implant choice or travel-clearance date.