North Carolina Product Liability Lawyer Blog

Articles Tagged with Artificial Hip

Disassociation Failures in Stryker LFIT V40 Artificial Hips

Published on: January 29, 2024 | By Clay Hodges

For a while now, Stryker has had issues with some of its hip replacement artificial implants. One troublesome type in particular has been the LFIT V40 series. Specifically, in some of these Stryker hips corrosion forms where the femoral head connects with the femoral stem. This would often lead to taper lock failure, or a compromised joint that would loosen and cause metallosis.

This issue helped lead to a recall in 2016 and an expanded recall in 2018. One of the reasons for the 2018 recall was a higher-than-expected number of reports of the femoral head disassociating (disconnecting) from the femoral stem.

What Is Artificial Hip Disassociation?

Signs Your Artificial Hip May Be Failing (UPDATED 2024)

Published on: January 5, 2024 | By Clay Hodges

Not all artificial hips fail. Many total hip replacement surgeries are successful. Unfortunately, artificial hips, particularly “metal-on-metal” hips, have “failed” at a rate much higher than previous artificial hip systems, whose components typically consisted of a combination of metals, plastics, and ceramics. The metal-on-metal design placed a metal ball or head directly into a metal acetabular cup. By using a metal cup and a metal ball, these artificial hips forced metal to rub against metal with the full weight and pressure of the human body. As long as the metals held up, all would be well. But it turned out that this intense pressure and movement often caused the metals to grind and deteriorate, and too often releasing metal particles into the surrounding tissue and into the bloodstream. In other artificial hip failures, such as with the Stryker LFIT v40, femoral heads can malfunction due to a failure in the taper lock. The taper lock is the part of the hip prosthesis that connects the femoral head to the stem. This can cause the neck on the femoral stem to grind down (sometimes referred to as “penciling”) and can even lead to a full disassociation (more on that below).

In still other artificial hip failures, the plastic liner (between the cup and ball) deteriorates and causes the total artificial hip system to fail. Polyethylene liners are very important in an artificial hip because over the years, it will serve as a buffer between the metal cup and also the metal femoral head or ball, so it can protect against excessive grinding of the hip components. But the studies have shown that Exactech hip plastic liners have been breaking down and showing signs of premature wear.

Please note that with any hip replacement surgery, there will be a period of rehabilitation. Even with great surgery results, the patient will suffer some soreness, stiffness, and a period to regain strength, mobility, and comfort. From the hundreds of people I have spoken with over the years who have undergone hip replacement surgery, even successful hip replacements do not turn you into a completely pain-free eighteen year old athlete.

09: Signs Your Artificial Hip May Be Defective

Published on: December 4, 2020 | By Clay Hodges

As a product liability lawyer, Clay Hodges has seen many cases of failed hip replacements. In this episode, Clay shares insight as to why your artificial hip may be failing and how to recognize evidence that it is. This episode is not medical advice, but is meant to offer insight as to whether or not you should inquire with your doctor about your hip replacement concerns. There are certain red flags that may indicate if your hip replacement is defective or not. If you want to know what the signs of an artificial hip failure may look like, join Clay in this episode.

Show Highlights:

Physical Therapist: What It Feels Like When Artificial Hips Fail (Part 2)

Published on: October 28, 2020 | By Clay Hodges

Let’s dive back in to my hip replacement surgery conversation with Physical Therapist Amy Dougherty, who discusses what sports to avoid after hip surgery and what it feels like when a person suffer an artificial hip failure:

Safe and Unsafe Activities and Sports

Clay: What are some sports that you would discourage [after hip replacement surgery]? I know there is a huge range of results and people who are dealing with certain physical issues. But are there any sports you’ve seen as a physical therapist that you say “Do not do this after hip replacement surgery?”

Physical Therapist Discusses Hip Replacement Surgery, Recovery (Part 1)

Published on: October 21, 2020 | By Clay Hodges

My friend Amy Dougherty is a physical therapist in North Carolina and operates Outer Banks Physical Therapy. She is a graduate of the University of North Carolina at Chapel Hill (where I also attended college and law school). She is an outstanding physical therapist and is beloved by her patients on the Outer Banks. Amy answers many of your questions about hip replacement surgery, metal-on-metal artificial hips, and the problems that have arisen from these hip products.

Clay: I want to focus on hip replacement surgery and I know you work with patients who are dealing with that kind of surgery every week. So let me start by asking what are a few reasons a person might need a hip replacement surgery?

Amy: You know, the most common reason is arthritic changes in the hip. So basically arthritis, that is the most common reason. Other reasons can include things like trauma. Some people have congenital mal-alignments where, it is basically called dysplasia where through the process of their development in utero and then following their bony surfaces of the femur, that is the long thigh bone and the acetabulum which is in the pelvis. They do not form correctly, so they might have ill-formed femoral heads. They might have ill-formed or ill-shaped acetabulum. So, the ball and the socket are not really designed well to weight bear. So, a lot of folks that, especially in a young population, that have early onset hip replacements. It is more likely the result of some type of congenital dysplasia. It could be a trauma. So, but arthritic changes is the number one reason and I have total hip replacement patients in my clinic every day. Very popular surgery, yes.

Zimmer M/L Taper Hip with Kinectiv Technology and VerSys Femoral Head Lawsuits

Published on: March 3, 2020 | By Clay Hodges

The human hip is a marvel of bioengineering. It allows for a 360-degree range of motion due to its “ball-in-socket” design. But as we age, this hip joint can sometimes fail. When it does, it may require a total hip replacement.

Hip replacements often use a variety of exotic metal alloys or ceramics to recreate the ball-in-socket mechanism of the human hip. A total hip replacement will typically consist of four parts:

The socket (or acetabular component).

Should I Automatically Get Revision Surgery If My Artificial Hip is Recalled?

Published on: December 4, 2019 | By Clay Hodges

I get this question fairly often, and it’s a good one. It usually goes something like this: a person had a total hip replacement several years ago. A few years pass. Then out of the blue the individual receives a letter from the artificial hip manufacturer or from the implanting surgeon explaining that a recall has been issued for the artificial hip components implanted. (And these are the lucky patients; many people who receive an artificial hip that was later recalled never get notification from their doctor, the manufacturer, or anyone. They don’t discover they have a defective artificial hip until the pain, metallosis, or other injury develops.) If I were in this position, and I received a recalled artificial hip, I would want to know: Should I have the recalled hip removed? And should I have the hip removed immediately?

As with most things in life, the answer is not simple.

I have been a product liability lawyer for many years now, and in that time I have spoken with hundreds of people suffering from defective products. I have heard dozens of variations on a similar narrative. While this is neither medical nor legal advice, here are my suggestions:

Smith & Nephew Birmingham Hip Lawsuits: Bellwether Trials Scheduled

Published on: November 6, 2019 | By Clay Hodges

Judge Catherine Blake, who is overseeing the Smith & Nephew Birmingham hip multi-district litigation in Baltimore, Maryland, recently issued an order setting out the bellwether trial schedule for the Birmingham Hip Resurfacing (BHR) cases.

Just to recap: there are two tracks of cases in the Smith & Nephew Birmingham hip litigation: BHR and THA. BHR refers to cases involving injured people who received Smith & Nephew Birmingham hip components as part of a resurfacing procedure. The BHR resurfacing system is a metal-on-metal (MoM) artificial hip, but in resurfacing procedures the hip “ball” bone is resurfaced with a metal covering and a metal acetabular shell is implanted into the hip socket, thus creating a MoM articulation. Smith & Nephew used cobalt and chromium to construct both of these resurfacing components. As with all metal-on-metal artificial hips, the Smith & Nephew BHR has been shown to wear down and leach metals into the blood and tissue of the patient, a condition called metallosis.

The second track of cases involves total hip arthroplasties (THA) using Smith & Nephew Birmingham components. These total hip replacements are constructed with Smith & Nephew BHR components and non-BHR components, but instead of resurfacing the “ball-bone” with a metal covering the bone is removed and replaced with a metal ball component (a femoral head).

HBO’s John Oliver Reports on Dangerous Medical Devices and the FDA

Published on: June 4, 2019 | By Clay Hodges

I’ve been writing about dangerous medical devices on this site for four years. Over that time I’ve reached thousands and thousands of people injured by these harmful implanted medical products. John Oliver, host of Last Week Tonight, picked up the subject this week, and I am grateful to him and to HBO because he reached more people in twenty minutes than I have in four years. I want more people to get the word out about the serious problems with medical devices rushed to market and “cleared” through the 510(k) loophole because it’s a public health crisis. Too many companies are pushing too many untested medical devices to market, and the FDA is not doing enough to protect the public from these devices. John Oliver talks about all of this on the latest episode of his show. It’s funny (and profane), but he lays out accurately the way massive profits have driven companies to push harmful medical devices on to an unsuspecting public. You can check it out at the link below:

Warning: This is HBO. Oliver speaks freely: the language is salty and the subject matter adult. Companies and people other than me own the content linked above. The show is the property of HBO and whoever owns HBO. Neither HBO nor John Oliver has any affiliation with my website.

How Do I Know What Artificial Hip or Other Device Is Implanted in Me?

Published on: January 25, 2019 | By Clay Hodges

It’s a great question. And I’m glad I asked it for you. Now let me answer it. There are several ways to identify the specific medical device implanted in your body. (A medical device is any manufactured device–like an artificial hip–implanted in the body for the purpose of resolving an injury, curing disease, or improving a person’s health. Medical devices can be artificial joints like hips and knees and shoulders, heart stents and pacemakers, IVC filters, hernia mesh, and hundreds of other examples.) Some ways of identifying exact product components are better than others. Identifying the medical device several different ways is the best of all.

Product Stickers: The Gold Standard

It all sort of starts with “product stickers.” These are the identifying stickers that are attached to the box containing the medical device, and they can be peeled off and affixed to a nurse’s hospital note or to another page in the hospital or surgeon’s record for the implant surgery. It goes something like this: the representative for the device maker shows up with the artificial hip components (or other medical device). The surgical nurse or the surgeon will double check that the components are the precise ones needed for the surgery, scan them into the system and note them in the record. The nurse will then peel off the product stickers and attach them to the hospital record and include them with all the other pages of documents explaining details of the surgery. The image at right is an approximation of what the stickers will look like: a bar code, the name of the manufacturer, the specific product name, the Lot and Reference numbers, and other identifying information.

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I was involved in a case for the faulty hip replacements. Clay Hodges represented me. I can't say enough about how much he has helped me. Clay was able to win multiple settlements on my behalf with most of them being the maximum amount able to be awarded. Matt J.

Clay, thank you sir for making a disheartening experience at least palatable, you and your staff were honest, caring and understanding through the entire process of my wife’s hip replacements, while monetary settlements never make the pain and suffering end, it sometimes is the only way people can fight back to right a wrong. J. V.

We are absolutely pleased with how Clay Hodges handled my husband’s hip replacement claim. He always kept us informed of the progress. And, his work resulted in a settlement which we are extremely pleased. Thank you, Clay! Carol L. & Norm L.