New Motion Preserving Wrist Implant hits 1 year Milestone [Press Release]

FRANKLIN, Mass., Sept. 12, 2016 /PRNewswire/ — In May of 2015 the new motion preserving WristMotion™ hemiarthroplasty implant from Arthrosurface, Inc. ( was launched. The following month, the first patients were treated by the three co-developing surgeons, Dr. Randall Culp, Dr. Joseph Sherrill and Dr. Insok Yi. The WristMotion™ implant system is designed to intraoperatively map the curvature of the patients’ wrist joint and resurface the arthritic bone with a congruent and robust articular surface implant. To date more than 100 procedures have been performed across the US with new surgeons treating more patients every month. The product was launched at the ASSH Hand Meeting in September of 2015 to an overwhelmingly positive response.

There are a variety of conditions that lead to pain and arthritis in the hand joint, many of which are caused by previous trauma or chronic overuse. Historically, when patients developed arthritis in their wrist, several procedures were performed: a PRC (Proximal Row Carpectomy), a 4 corner fusion (4CF) or a joint replacement with implants. The implants either replaced one side (hemi) or both sides of the joint (Total). In the PRC procedure, the arthritic bones in the middle of the hand were removed and a new articulation formed between the remaining bones. In the 4 corner fusion procedure, the arthritic bones were left intact but immobilized so they no longer move against each other. The idea was that once the bones fused together, the pain would go away. Total replacements were performed more commonly than hemi’s and they involved significant bone resection. The WristMotion™ system consists of an anatomic implant to resurface the arthritic capitate bone. The implant creates a new articulating surface and is designed to preserve more bone than other implants, thereby providing patients with an alternative to other treatments.

Dr. Randy Culp said, “The bones in the hand are very uniquely shaped and contribute to the overall mobility of the hand. Whether we fuse or remove the bones for a PRC, we are making a compromise. Now that we can use an implant to reshape the bones to match each other, we have another way to preserve motion.” Follow-up on early patients has shown that the implants are stable, patients are able to return to their previous activities with pain-free motion and many have returned to sports such as golf.

Previously, surgeons promoted fusions or PRC’s over joint replacements. That thinking is starting to change. As Dr. Joseph Sherrill commented, “In spite of initial successful outcomes following PRC or four corner fusions, there is a significant failure rate over time due to progressive radio carpal arthritis. The WristMotion™ implant is an excellent treatment option for these patients who may be considering fusion but would prefer to maintain wrist motion.”

The WristMotion™ system is based on the same time tested principles of other Arthrosurface joint restoration systems. Match the implant to the patient and restore joint congruency using instrumentation that is reproducible and intuitive. “When I saw how well the knee and shoulder patients of my partners functioned when they used Arthrosurface, I thought that we needed something like that for the wrist. As hand surgeons we operate in a small space so instruments and implants need to be streamlined and small. The WristMotion™ system is extremely intuitive and reproducible which makes the procedure reliable and quick,” said Dr. In Sok Yi.

Steven Ek, CEO, Arthrosurface commented, “We are very excited about expanding our joint preserving technology into the hand and wrist. By adding new products to our extremity portfolio, surgeons have more options to treat disabling arthritis with unique and motion preserving solutions. For Arthrosurface, the extremity product line is a key to driver for our growth.”

About Arthrosurface

Arthrosurface, Inc. is a leader in the design and distribution of orthopedic devices for joint preservation, restoration and resurfacing. The HemiCAP® system is a unique, less invasive technology that can be used to treat a wide variety of joint conditions caused by trauma, injury and disease. Founded in 2002, Arthrosurface markets and distributes its products in the US and around the world.

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SOURCE Arthrosurface, Inc.


33 responses to “New Motion Preserving Wrist Implant hits 1 year Milestone [Press Release]

  1. As of today, May 11, 2017, how many wrist surgeries have been performed using the arthrosurface implant? Realizing that “long term” results are not available what are the results to this point? After the surgery can pressure be applied to the joint such as in doing push ups or bench presses?

    Thanks and I very much appreciate your prompt reply. I need to doing something for my SLAC wrist in the very near future.

  2. Interested as well – After the surgery can pressure be applied to the joint such as in doing push ups or bench presses?
    Any other sport activities, like bicycle riding, swimming or tennis?

    Thanks and I very much appreciate your prompt reply.
    I need to doing something for my SNAC wrist in the very near future, a month or two

  3. My 15 year old daughter has unfortunately been diagnosed with stage III Keinbock Disease. The doctor is recommending a proximal row carpectomy. Has there been any success using the arthrosurface implant for a patient with her diagnosis? Also, what is the youngest patient that has received the implant?

  4. I am a golfer and was diagnosed with SLAC wrist years ago. I’ve managed to play competitive golf into my early 60s but now the discomfort in my wrist and thumb is affecting my golf swing. Are your implants suitable for a golfer who relies on his wrists to release the club. I am right handed and it is my right wrist that is affected.

  5. Hi Kevin- It is possible to reverse a Wrist Fusion, however there are many things for your surgeon to consider when deciding if it is a viable option for your specific situation.
    Some things for your surgeon to look at include, if the capitate’s bone stock is good enough to support the screw fixation of our WristMotion Implant and whether the lunate fossa’s cartilage is healthy or not. Please let us know if you have any other questions!

  6. I am an electrician with SLAC. I need to have surgery. Which procedure would be the most durable to do my job after recovery. I need to be able to use hand tools power tools etc.

  7. I am 60 y.o. male and my specialist has scheduled PRC. Could you send me data re: statistical outcomes to date? Also wondering about possibility of push-ups and cycling post implant. Thank you!

  8. I am a 47-year-old male and was recently diagnosed with Stage II SNAC in my left wrist stemming from an injury/surgery that occurred 30+ years ago. I am moderately active enjoying golf, auto repair, and home improvements…each of which relies on reasonable wrist function. Treatment options provided included cortisone injections (short term) and PRC (medium-long term). 4CF was discussed as well. There was no mention of implant options such as the wrist motion device. Interested to find out more information and to get in contact with a local doctor in the Minneapolis/St. Paul area who performs this procedure.

  9. I would like to know the postop care and p.t. schedule and nation ratios. Un able to find this information on writ motion

  10. How does this surgery affect your gripping strength, and why don’t you show your replies to people who would like to know the answers to the above 28 questions? Sounds kind of shady…..

  11. Due to HIPAA and compliance regulations, we endeavor to keep all interactions with patients private. We are currently working on collecting data from the system and hope to have it published within the next year or so. Data takes about 5 -6 years from the first implant to publish. However, those patients we have heard from have told us their grip strength returned following the WristMotion. Also, here is a link to our Post-Op protocol:

  12. I am a 48-yr old male who was very active with sports, weight-lifting and CrossFit. I had an SL tear and possible SLAC wrist and went in for reconstructive surgery but unfortunately (and surprisingly) ended up with a PRC. I am pretty disappointed as after 9 months the gap between my capitate and radius has already almost completely closed to nothing and I am pretty unhappy with the results. I am worried my capitate will get destroyed, etc. Can I have my PRC revised to the WristMotion implant before it is too late? Any preliminary indications on how will it hold up (after proper healing and P/T of course) to eventual pull-ups, benchpress, etc.? Thanks you.

  13. I’m 61-yr old male, active and athletic. I have a SLAC right wrist. Have had radial styloidectomy and interosseous denervation on the wrist. Am I still a potential candidate for the implant? And to questions posed by others, will I be able so bear weight with my wrist such as in a push-up and/or moderately heavy weights?

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