Presenting Revision Cases on the ABOS Part II

Revision cases are among the trickiest to defend on the ABOS Part II. A primary case asks you to justify one set of decisions. A revision case asks you to justify two — someone else's, and your own in the aftermath.

If the case selectors assign you a revision out of your submitted twelve, you don't get to trade it. You walk through the summary you submitted, and the examiners probe the reasoning behind a decision you made about a previous failure. How you handle that probing says a lot about your judgment — and examiners know it.

Why Revisions Are Different

On a primary case, the narrative is relatively clean. Patient presents, you work them up, conservative measures fail, you operate, you follow them. On a revision, there's already a story — and it didn't end well. The patient is in your office because something went wrong with an earlier procedure, whether yours or someone else's.

That changes what examiners are looking for. They're no longer just asking “was the operation indicated?” They're asking:

• What failed, specifically?
• Why did it fail?
• How did you evaluate the failure?
• What did you do differently, and why?
• What did you tell the patient to expect?

Every one of those questions is a place where a prepared candidate shines and an unprepared candidate flounders.

Defining the Failure

The first thing examiners want is a crisp diagnosis of why the index procedure failed. “It just didn't work” is not an answer. Neither is a vague gesture at “pain.” A revision presentation should name the failure mode with the same precision you'd use for a primary diagnosis.

Aseptic loosening. Periprosthetic infection. Malunion. Nonunion. Malalignment. Instability. Component wear. Whatever it is, say it, and be ready to explain how you arrived at that conclusion. If the workup didn't clearly distinguish between two possibilities — say, aseptic versus septic — acknowledge that and walk through how you handled the uncertainty.

The Workup Examiners Expect

Methodical is the word to keep in mind. Revision cases are where the examiners most want to see that you didn't skip steps. A presentation that jumps straight from “the patient had pain” to “so I revised” will get torn apart.

Expect to walk through, in order:

• Prior records. Operative reports, implant stickers, follow-up notes. If you couldn't get them, say so, and say what you did about it.
• Imaging comparison. The index-procedure imaging side-by-side with current imaging. Examiners want to see that you looked for changes over time, not just a snapshot.
• Infection workup where relevant. ESR, CRP, aspiration with cell count and differential, cultures. Especially critical in arthroplasty and hardware cases. If you ruled infection out, say how.
• The decision process. What options you considered, what you chose, and why. Shared decision making belongs here, in your own words, not as a buzzword.

If any of these are missing from your submitted summary, you will feel it the moment the examiner opens their mouth. Fix documentation gaps before you submit — not in the exam room. For more on this, see documentation quality on the ABOS oral boards.

Don't Blame the Prior Surgeon

This is the single fastest way to turn an examiner against you on a revision case. Even if the index procedure was obviously botched. Even if the hardware was malpositioned. Even if you have photos. Do not editorialize.

The reason is simple. Examiners are experienced surgeons. They know complications happen to good people, and they know the candidate in front of them is going to have their own complications someday. A candidate who throws another surgeon under the bus reads as someone who will throw colleagues, hospitals, and patients under the bus later. It's a character signal, and it's negative.

The professional framing is descriptive, not judgmental. “The prior construct failed in [specific way]. My evaluation suggested [finding]. I discussed the situation with the patient and recommended [plan].” That's it. No adjectives. No sighs. No knowing looks.

Don't Overstate Your Own Approach, Either

The other failure mode is the opposite: the candidate who treats the revision as a chance to show off. “I recognized immediately what the prior surgeon missed, and I performed a much more definitive reconstruction.” Examiners hear that and immediately push back — hard.

Humility wins revision cases. “Overall satisfied with the outcome, though the patient still has some limitations” is the right tone. Not “patient did excellent, so happy.” Revision outcomes are, statistically, worse than primary outcomes. Acting surprised by that, or claiming you beat the odds, signals the exact opposite of the judgment examiners are looking for. For more on how tone interacts with defensibility, see defending your decision making on the ABOS oral boards.

Realistic Expectations With the Patient

Examiners will almost always ask what you told the patient to expect. This is where you demonstrate that you understand the real-world ceiling on revision outcomes — stiffness, residual pain, limited function, higher complication rates. If your preoperative discussion, as documented, sounds like you promised a primary-quality result, you have a problem.

Good revision counseling acknowledges the range of possible outcomes honestly. It names the complications that are more common in revisions. It leaves the patient with a clear understanding of why the operation is still worth doing despite those risks. When you present the case, convey that same honesty.

Common Pitfalls

Across revision cases, the same problems come up again and again:

• Missing prior records. No operative report, no implant information, no prior imaging. If you couldn't get them, the examiners want to hear what you did to try.
• Vague failure diagnosis. “It was painful” is not a reason to revise. Name the mechanism.
• Incomplete infection workup. Especially in arthroplasty and hardware cases. Examiners will assume infection until you prove otherwise.
• Unrealistic outcome predictions. Overselling the result either to the patient or to the examiners.
• Editorializing about the prior surgeon.Always a loss. Always.

The Mindset

Walk into a revision case with the posture of someone who took a hard problem seriously. You did the records review. You ordered the right workup. You thought carefully about options. You had an honest conversation with the patient. You operated. You followed them closely afterward. When complications happened, you addressed them — see handling complications on the oral boards for more on that.

That's the story. Tell it plainly, defend it honestly, and don't get pulled into blame or bravado. Revision cases aren't a trap — they're an opportunity to show examiners the judgment they're actually evaluating.