An SI joint injection that stops working usually does not mean it failed. In most cases, the medicine ran its expected course, or the injection did its second job and helped confirm where your pain is coming from.
You felt the relief. The ache eased and you moved more freely. Now it is creeping back, and no one prepared you for that. Whether you want to move through a normal day or get back to physical work without heading straight for surgery, a fading result is more often a clue than a dead end.
How Long Is an SI Joint Injection Supposed to Last?
For most of our patients at Shore Spine & Pain, the range is a few weeks to a few months, depending on your body, your activity, and what is driving the pain.
The injection works in two ways. A numbing medicine takes effect right away and wears off within hours; a sharp drop in those first hours signals the SI joint is very likely the source. The steroid works slower, settling in over several days to calm the inflammation, and that is the relief measured in weeks to months. It builds gradually, so you may not feel its full effect for 2 or 3 days.
What matters is not the exact number of weeks but noticing how long your relief lasted, because that becomes part of what your physician considers when deciding what comes next.
Why Did Your SI Joint Injection Stop Working?
Your SI joint injection likely stopped working for one of a few ordinary reasons. The simplest: the steroid calmed the inflammation but could not repair the joint. It quiets an angry joint but does not rebuild it, so as it clears, the irritation returns, which is expected.
A second reason is that the SI joint may have been one of several places your pain was coming from. Quieting the sacroiliac joint can settle the loudest source and leave a quieter one behind. Pain that improved and then changed, or moved to a nearby spot, sometimes points to another contributor such as a herniated disc or a facet joint sharing the load. That is not failure; it is the injection peeling back one layer to show what sits under it.
The third reason your injection may have stopped working is the everyday stress on the joint: the standing, lifting, twisting, and bending of a normal day or shift after the injection wears off. If the demands that irritate it remain, so does the irritation, which for physical work often means relief lasting weeks rather than months.
What Should You Expect After the Injection, and What Should You Track?
For a day or two after your SI joint injection, you may feel sore where the needle went in, and your pain can briefly flare before easing. That soreness is an ordinary side effect, and the numbing medicine can leave the area numb or your leg heavy for a few hours.
SI joint injection recovery is your best chance to gather information. Write down two things: how much your pain dropped, and how many days or weeks it stayed down. Even a daily zero-to-ten number and a note on what you could do turns a vague memory into the record Dr. Woska needs at your follow-up visit.
If your goal is protecting daily mobility, test the relief gently. Try the movements that used to catch, rising from a low chair, walking the block, turning to reach behind you, noting which brings pain back first. If you are managing a work injury, a clear, dated account of how much it helped and how long it lasted shapes a realistic, defensible return-to-work conversation.
What Comes Next If Your SI Joint Injection Didn’t Help, or Didn’t Last?
If your injection brought no relief at all, it can mean the SI joint is not the main source, that your pain comes from more than one place, or that the source sits somewhere the injection could not reach. Each points toward a closer look at the source rather than a repeat injection.
If your injection gave strong relief that faded and pointed clearly to the sacroiliac joint, that is encouraging. The right target was found, and the next step is often a longer-lasting option like radiofrequency ablation, which quiets the same nerves the injection reached. A temporary success is exactly what makes that kind of durable option worth considering.
If your injection helped only partway, a closer look at the source comes first. Partial relief usually means the joint is part of the story, but not all of it, and moving straight to another treatment often fails to fix the problem.
Underneath all three paths is the approach that defines how Dr. Woska practices: how your injection went is real evidence, not guesswork, and confirming the source comes before treating it.
Most changes after an injection are ordinary and can wait for a scheduled visit. A few cannot. Seek prompt medical care if you notice:
- New or worsening weakness in a leg
- Numbness in the groin or inner thighs
- Loss of bladder or bowel control
Get Help with SI Joint Pain in Lakewood and Shrewsbury, NJ
A fading SI joint injection is not a failure or the end of the road. It is a result, and a result is information that tells a physician like Dr. Woska what to look at next. The next move is a follow-up visit, not a last resort.
If your relief has worn off and you want to know why, call Shore Spine & Pain at (732) 584-2400 or request an appointment to arrange a visit at our Lakewood or Shrewsbury offices, serving the Jersey Shore across Monmouth and Ocean County.
