You hurt your right knee at work. Fourteen months later the left one is the one that will not take the stairs. Nobody hit it, nothing happened to it, and you have spent over a year putting your weight on it because the right one could not take the load.
Most people in that position assume the second knee is their own bad luck. It is frequently part of the claim, and the law has a name for it.
What a consequential injury is
A consequential injury is one that, in the words the Appellate Division uses, “results directly and naturally from claimant’s prior injuries and the disability thereby produced.” The Third Department restated it that way in Matter of Aungst v Family Dollar in 2023 and again in Matter of Cho v New York City Transit Authority in 2025.
Three things follow from that sentence, and all three matter.
It flows from the injury and the disability it produced — not only from the trauma itself. A back that goes out because you limped for a year is a consequence of the disability as much as of the original accident.
Whether it happened is a factual question for the Board, not a legal one with a clean answer. The courts say so plainly. That means it is decided on the medical proof in your file, and it is winnable or losable on the quality of that proof.
The burden is yours, and it is carried by competent medical evidence. The Board is also not required to swallow whatever your doctor writes: it may reject a medical opinion it finds “incredible, speculative or lack[ing] evidentiary support.” Which is the whole ballgame, and we will come back to it.
It is not a new accident
This distinction saves claims, so it is worth being clear about.
A consequential injury is added to your existing claim. It is not a fresh accident with its own notice requirement and its own filing deadline. You are not late because the second knee started hurting two years after the first one, and you did not fail to report anything to your employer, because there was nothing new at work to report.
It also keeps the original numbers. The benefit rate still runs off the average weekly wage from the original date of accident, and the statutory maximum is still the one in effect then. People sometimes talk themselves into filing a new claim for the second body part. That is usually the wrong move and occasionally a costly one.
The patterns that come through the door
The other side of the body
The most common by a distance. An injured right shoulder means everything gets done left-handed for a year, and the left one wears out. An injured leg means the other one carries the load. Overuse of the uninjured limb is a well-recognized mechanism, and it is usually the one the carrier fights hardest, because there is no incident to point at.
Altered gait
Limping is not neutral. Months of walking wrong loads the hip, the opposite knee and the lower back in ways they were not built for. A back claim that grows out of a foot or ankle injury sounds far-fetched until an orthopedist explains the mechanics, at which point it sounds obvious.
The fall caused by the injured part
A knee that gives way on a staircase. A hand that cannot grip a railing. The fall is a new event, but if the established injury caused it, the resulting damage can come into the claim. This one turns almost entirely on whether anybody documented why you fell, in the moment, rather than just that you fell.
Surgery, hardware and complications
Treatment for a compensable injury carries its own risks. An infection, a failed fusion, hardware that loosens, a nerve injured during a procedure, a complication from anesthesia — consequences of authorized treatment are generally part of the claim rather than separate from it.
Complex regional pain syndrome
CRPS, still called RSD by a lot of people, develops after an injury or a surgery and is wildly out of proportion to what set it off. It is heavily contested, it needs a physician who documents the diagnostic criteria carefully, and it is exactly the kind of condition that is lost on a thin record and won on a thorough one.
Consequences of the medication
Where treatment prescribed for a compensable injury causes a further medical problem, that problem can be part of the claim as well. Speak to your own treating physician about anything you are prescribed — but do not assume that a condition caused by treatment is outside the case, because it often is not.
Depression, anxiety and sleep
A psychological condition that grows out of an established physical injury is compensable as a consequential condition, and it does not have to clear the extraordinary-stress standard that a pure stress claim does. That is worth a page of its own, and it has one: psychological injury claims in New York.
What the carrier will say
There are four arguments, and they are the same four every time.
- It is degenerative. You are fifty-two and the MRI shows arthritis, so the knee was going anyway. Almost every adult spine and knee shows degenerative change on imaging; the question is what made a silent condition symptomatic and disabling.
- Something else caused it. An intervening event — a car accident, a fall at home, a weekend of yard work — that the carrier will offer as the real cause.
- You never mentioned it. Two years of treatment notes about the right knee and not one line about the left. This is the most effective argument they have, and it is the one you can do something about.
- The opinion is conclusory. Your doctor wrote “causally related” and nothing else. Under the case law the Board is free to reject an opinion that is speculative or unsupported, and a bare assertion is exactly that.
These cases are won in the medical report
If you take one thing from this page, take this. A consequential claim is decided on whether a physician explained the mechanism — not whether a physician announced a conclusion.
“Left knee pain, causally related” is a sentence the Board is entitled to disregard. What works is an opinion that says what happened and why: that the claimant has been ambulating with an antalgic gait since the 2023 right knee injury, that the resulting weight transfer to the left side over an extended period is a recognized cause of the findings now documented on the left, and that in this physician’s opinion the left knee condition is causally related to the established right knee injury and the disability it produced.
That is not a magic formula and it should never be words put into a doctor’s mouth. It is what a real opinion looks like when the physician has actually thought about the question. Part of the job is making sure the question gets asked.
Tell your doctor about it now, not later
The single most useful thing you can do is unglamorous: mention the second body part at the next visit, and at the one after that.
Injured workers routinely do the opposite. You are there about the shoulder, the visit is short, the other shoulder is only aching, and you do not want to sound like you are piling on. Two years later the absence of any mention is the carrier’s exhibit. Contemporaneous complaints in the treatment record are worth more than anything anyone can reconstruct afterward.
How the site actually gets added
The Board put a faster procedure in place in December 2024 for additional sites of injury and consequential injuries, and it runs like this.
- A Form RFA-1LC, the request for further action by legal counsel, goes in with prima facie medical evidence for the unestablished site.
- The Board issues a Proposed Decision finding that prima facie medical evidence exists.
- The carrier then has 30 days to either accept the new body part, or dispute it — by obtaining an independent medical examination within 60 days, or by waiving the IME and cross-examining your doctor within 60 days.
- A notice of independent medical examination or proof of a testimony date has to be in the file by the time the Proposed Decision becomes final. If the carrier does nothing, its inaction can be treated as acceptance.
- If it is disputed, the Board decides what happens next — establishing the site, reserving decision, directing depositions, or setting a hearing.
That last point is worth sitting with. A carrier that sleeps on a properly supported request can lose the issue by default. That is a real advantage, and it belongs to the claimant who filed with the medical evidence already in hand.
What adding a site is actually worth
It is not a paperwork exercise. Establishing a consequential site can change the case in three concrete ways.
Medical treatment for the new site gets paid for. That alone is often the reason to do it, particularly where surgery is on the table.
It can add a schedule loss of use award where the new site is an extremity. Two knees are not one knee.
It can change permanency. Where the case is heading for classification, an additional established site is part of what the Board looks at in setting loss of wage-earning capacity — and that finding drives how many weeks of benefits you receive.
Frequently asked questions
How long after the original injury can a consequential site be added?
There is no separate deadline that starts running when the second body part begins to hurt, because it is not a new accident. What limits you in practice is proof: the longer the gap, and the emptier the treatment record in between, the harder the causal argument. If the claim has already been settled or closed, that raises separate questions worth asking about specifically.
My case is already classified. Is it too late?
Not automatically. A consequential condition that develops or worsens after classification can still be raised, though the posture is different and what it is worth depends on where the case stands. Bring the decision and the recent medical records.
I settled my case with a Section 32. Does that end it?
Usually, yes — that is what a full settlement is for, and it is one of the reasons to think about foreseeable consequential problems before signing rather than after. Whether anything survives depends entirely on how the agreement was written.
The carrier sent me to an IME and its doctor said no. Is that the end?
No. A disputed causal relationship is precisely what hearings and depositions exist to resolve. The Board weighs the opinions; it is not bound by either side’s. A well-reasoned treating physician’s opinion frequently prevails over a consultant who examined you once for twenty minutes.
Does a consequential injury get its own benefit rate?
No. It rides on the original claim, which means the original average weekly wage and the statutory maximum in effect on the original date of accident. That is usually to your advantage in terms of not restarting deadlines, and occasionally a disadvantage on the rate if you were earning considerably more by the time the second condition appeared.
What should I bring if I think I have one?
The claim number, whatever Board decisions you have received, and the names of everyone who has treated you for both the original injury and the new complaint. If the new site has been mentioned in any office note, however briefly, that note is the most valuable thing you own.
If the second thing is getting worse
Call the office at 718.701.2776 or toll free at 800.310.5520. The consultation costs nothing, and if there is a consequential claim to make, the sooner the treatment record starts reflecting it the better it goes.
This page describes New York law in general terms. It is not legal advice about your claim, and reading it does not make us your attorneys.
Talk to a New York workers’ compensation attorney
The Law Offices of Frank J. Dito, Jr. handles workers’ compensation claims from the office on Staten Island, for injured workers throughout the five boroughs and across New York State.
Call 718.701.2776 or 800.310.5520. If we don’t recover money for you, we don’t get paid.
