If you’re planning a hip replacement or have already had one, could a new study mean you should be looking at the health of your tendons? Why would your tendons matter if you have arthritis of the joint? Is there a way to avoid or fix continued pain after hip replacement? Let’s dig in.
The Gluteal Tendons
There are muscles that protect the hip joint and surround it. They are the “butt” muscles like the gluteus maximus, medius, or minimums. These muscles have tendons that can become beat up with wear and tear. When that happens, it’s called gluteal tendinopathy.
Researchers followed 50 patients with gluteal tendinopathy that could be seen on MRI, but was otherwise asymptomatic, underwent hip replacement. They also tracked 50 patients who didn’t have any evidence of gluteal tendinopathy on MRI and who also had their hip replaced. The patients that had the beat-up gluteal tendons had worse outcomes on a functional hip questionnaire, worse pain, and poorer patient satisfaction.
Basically, these patients had pain after hip replacement. The pain experienced by the hip replacement patients with gluteal tendinopathy was toward the outside of the hip and twice as many patients needed revision hip replacement surgery in this group. So while their hip joint may have felt better, they still had problems related to these damaged tendons.
How Can You Avoid Being This Patient?
How can you avoid pain after hip replacement? Many times these tendon issues will be talked about on your MRI report. So look for terms like “tendinopathy”, “tendinosis”, or “tendon tear” in muscles like:
TFL (tensor fascia lata)
If you don’t have an MRI, take some time to press on these spots:
If they’re tender, then get an MRI to check out if you have gluteal tendinopathy.
What Could You Do to Make Yourself a Better Candidate?
How could you avoid or fix pain after hip replacement?
If you have these gluteal tendon issues, first trying to figure out why is a good idea. For example, irritated nerves in the back can cause this problem. That doesn’t have to be full-on sciatica, it can just be low-level irritated nerves with or without back pain. Since the nerves tell the muscles what to do, bad nerve signals can cause these muscles to misfire and the tendons to get ripped up.
Second, treating the tendons before or after hip replacement is a good idea. The most common way to treat beat up tendons these days is using your own concentrated blood platelets (called platelet-rich plasma or PRP). In this case, ultrasound guidance would be used to guide the needle to the bad parts of the tendon and then relief can be achieved in weeks to months as the growth factors from the platelets stimulate healing and growth of the tendon cells. However, note that if the bad tendons were in fact caused by irritated nerves in your back, the back will need to be treated as well.
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Other Causes of Pain after Hip Replacement?
First, watch my video above for some causes of butt pain after hip replacement.
A prosthesis that is too short or long. This will cause a leg length discrepancy.
Hip pain that was from elsewhere, other than your arthritic hip. That means that the hip pain could have always been referred from the low back or from the SI joint (see video above). Hence, replacing the hip joint never treated the original pain generator.
Wear particles from a metal on metal or minimally invasive anterior hip replacement (Birmingham hip or “Hip Resurfacing”). This is wear debris that then irritates the tissues and causes pain.
What We Know about Hip Replacement
Is hip replacement a panacea? Meaning, does it always work? Most people think that getting a hip replacement is like getting a new part installed in your car, but it’s really not. In fact, it’s a big surgery that involves amputating the hip joint and then installing a prosthesis. This is why so many still have pain after hip replacement.
The upshot? Pain after hip replacement is surprisingly common and can be due to beat-up butt muscle tendons. A little detective work may help you avoid problems or provide a way to fix them.
Chris Centeno, MD is a specialist in regenerative medicine and the new field of Interventional Orthopedics. Centeno pioneered orthopedic stem cell procedures in 2005 and is responsible for a large amount of the published research on stem cell use for orthopedic applications. View Profile
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