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Pluvious

(5,260 posts)
16. Just for grins, I submitted the reworded question to Gemini...
Sun Jan 11, 2026, 05:01 PM
Sunday

As in all cases of search results, you should examine the sources that they include so you can be sure that the summary is not getting something wrong.

Here is the response in returned, leaving out the reference sources of course:

It is absolutely possible. While a 15-year-old hip replacement might seem like "old news," the way your hip, pelvis, and spine interact is a lifelong partnership. In the medical world, this is often referred to as **Hip-Spine Syndrome**.

After 15 years, there are several reasons why an old hip replacement could be the "silent" culprit behind new back pain:

### 1. The "Chain Reaction" (Altered Biomechanics)

Your body is an interconnected chain. If a 15-year-old hip implant has begun to wear down or the surrounding muscles have weakened, your body will instinctively change how you walk or stand to protect the joint. This shift in **gait** or **posture** forces your lower back (lumbar spine) to overcompensate.

* **The Result * Your back takes on mechanical stress it wasn't designed for, leading to muscle strain or accelerated disc wear.

### 2. Component Wear or Loosening

Most modern hip replacements are designed to last 15–25 years. At the 15-year mark, the artificial materials (polyethylene, metal, or ceramic) can begin to show wear.

* **Micro-instability * Even if the hip itself doesn't "hurt," tiny amounts of loosening can cause a slight tilt in your pelvis.
* **Back Connection * A tilted pelvis changes the alignment of your spine, which can pinch nerves or cause "referred pain" that feels like it's coming from your back.

### 3. Leg Length Discrepancy

Over time, as an implant settles or the other (natural) hip ages and loses cartilage, a slight difference in leg length can develop. Even a few millimeters of difference can act like walking with one shoe on and one shoe off. This creates a permanent "lean" that manifests as chronic lower back pain.

### 4. Shared Nerve Pathways

The nerves that serve the hip and the lower back are closely related. Sometimes, what feels like "back pain" is actually **referred pain** from the hip joint itself. Conversely, a hip that has lost its full range of motion over 15 years can "lock" the pelvis, forcing the lower back to do all the bending and twisting, leading to inflammation.

---

### What should you look for?

If you are experiencing back pain after 15 years, consider these "red flags" that point toward the hip:

* Pain that is worse when getting in/out of a car or putting on socks.
* A noticeable "limp" or a feeling that one leg is shorter.
* Pain that radiates into the groin or the side of the thigh (this is often hip pain disguised as back pain).

### Next Steps

Since your implant is 15 years old, it is reaching the age where a "tune-up" or evaluation is standard.

**Would you like me to help you prepare a list of specific questions to ask an orthopedic surgeon to determine if the pain is coming from the hip or the spine?**


If you wish to refer to the sources of this summary, just paste my rewarded question into Gemini and go to the bottom where it says sources.

Best wishes to you...

Recommendations

1 members have recommended this reply (displayed in chronological order):

I find Google AI arrogant, inaccurate, argumentative bucolic_frolic Sunday #1
I agree completely with your comments at the end of the post RockCreek Sunday #2
A I is GIGO creon Sunday #3
Some. nt Javaman Sunday #4
It's weird how big corps think that slapping the word "AI" on everything means people won't notice their product is shit EarlG Sunday #5
I was amused to see the ".ai" internet suffix belonging to Anguilla as "valuable" since AI companies want it muriel_volestrangler Sunday #6
I agree that a lot of machine learning can be extremely useful. But I wouldn't include generative AI in highplainsdem Sunday #7
It's like when you see a bottled water labeled "Gluten Free!" ToxMarz Sunday #9
AND "Caffeine free" BumRushDaShow Sunday #12
Way back before Google BumRushDaShow Sunday #11
Where AI is perfectly suited is the modern day PT Barnum's ToxMarz Sunday #8
Don't get medical information from any internet search. I've seen more batshit crazy shite than minutes I have Raftergirl Sunday #10
Unfortunately, with access to doctors now being killed off due to a lack of health insurance thanks to the GOP BumRushDaShow Sunday #14
I've been having some back pain so I googled a question about whether a 15 year old hip replacement Vinca Sunday #13
The way these fancy search engines work... Pluvious Sunday #15
Just for grins, I submitted the reworded question to Gemini... Pluvious Sunday #16
Thanks for taking the time to do that. Vinca Sunday #17
My pleasure Vinca... Pluvious Sunday #18
just say an OLD hip replacement Skittles Sunday #19
Latest Discussions»Latest Breaking News»'Dangerous and alarming':...»Reply #16