Category Archives: HR Problems

Hip Resurfacing Problems Articles

Hip Resurfacing Information at Surface Hippy Posted on by
hip-resurfacing-problems… Read the rest

Revision Hip Resurfacing Patients Have Better Outcomes Than THR Revision Patients

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June 1, 2018 – BARCELONA, Spain – Total surface replacement may still be a viable hip arthroplasty option in young, active patients based on how well it fared in a study when it was revised to total hip replacement vs. primary THR that was revised to THR, according to a presenter at the EFORT Annual Congress…

…“Our study shows, therefore, that there is less blood loss, there’s a shorter length of … Read the rest

Loose or Slipped Acetabulum Cups by Dr. Bose

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The issue of cup slippage in the immediate postop period is a controversial one.
While bone ingrowth takes around 6 wks. – the hydroxy apatite to bone chemical reaction can occur much more quickly.

If we surgeons feel that the cup is not perfectly tight ( press fit)  during the surgery then we restrict activities for a 6 -8 wk period .This is done in the hope that no precipitating event would occur that would … Read the rest

DePuy Orthopaedics Discontinuation of ULTAMET Metal-on-Metal

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DePuy Orthopaedics, Inc. Statement on
Discontinuation of ULTAMET Metal-on-Metal and
COMPLETE Ceramic-on-Metal Hip Systems

DePuy Orthopaedics, Inc., announced its decision
to discontinue sales of its ULTAMET
Metal-on-Metal Articulation and COMPLETE
Ceramic-on-Metal Acetabular Hip System
worldwide. The discontinuation will be effective
August 31, 2013. This will allow surgeons to
plan accordingly for upcoming surgeries. The
ceramic head used in COMPLETE will continue to
be available for use in other bearing surface
combinations.

The metal liner that … Read the rest

Dr. Su responds to recent Lancvet Article about failoure rates

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I would like to take this opportunity to comment on the Lancet article, “Failure rates of metal-on-metal hip resurfacings: analysis of data from the National Joint Registry for England and Wales”, by Professor AW Blom, published on October 2, 2012.

First of all, this is an observational scientific study with valid research design and questions; however, the conclusions point out the limitations of registry studies (more on this to
… Read the rest

Hip Resurfacing Problems

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Knowing the cause of resurfacing failure can ensure successful conversion to THR by Dr. Su

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Knowing the cause of resurfacing failure can ensure successful conversion to THR by Edwin Su, MD

The shell can be retained in cases involving femoral neck fracture, femoral loosening or impingement.

March 2010

Causes of failure

“The cause of failure must be carefully assessed prior to the conversion surgery in order to ensure an optimal THR outcome,” Su said. He noted that femoral neck fracture is the primary cause of short-term failure in resurfacing procedures.

… Read the rest

I Have Bone Cysts, Can I Have a Hip Resurfacing?

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Dr. Bose –  I have bone cysts, can I have a hip resurfacing?

The presence of a cysts by itself is not a contraindication for resurfacing. It does not preclude resurfacing automatically. One must keep in mind that cyst formation is a natural occurrence in osteoarthritis and is very common though the extent, quantity & location may vary.

Cysts are of course much more common and invariably present in AVN. The assessment of certain technical … Read the rest

Bone Cysts by Dr. Scott Rubinstein

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By  Dr. Rubinstein
2860 N. Broadway  Suite 202
Chicago, IL 60657
Phone: 773-327-8300
Website:
http://www.hiportho.com
Cysts are very common in arthritic hips and can usually be
seen on x-rays. Most of the time they are not a problem with
resurfacing because they are small and in the part of the bone removed in
milling the femoral head for a resurf. Most larger ones can be filled
with a cement of bone chips and still do

… Read the rest

Pseudotumours Risk For Hip Resurfacing Highlights

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Link http://www.medicalnewstoday.com/articles/114601.php

July 11, 2008

As the incidence of metal-on-metal hip resurfacing has increased in recent years, especially in younger patients, research published in the Journal of Bone and Joint Surgery – British Volume (JBJS-Br) discusses occurrences of “pseudotumours” as a result.The researchers estimate that approximately 1% of patients who have metal-on-metal hip resurfacings develop pseudotumours within five years of treatment. A pseudotumour is ‘a soft-tissue mass associated with the implant…neither malignant nor infective
… Read the rest

DuPuy Reaches $2.5 Bln Deal To Compensate Revision Patients 2013

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Read Complete Article HereNovember 19, 2013Health care giant Johnson & Johnson Co.’s ( JNJ ) medical-device unit DePuy Orthopaedics, Inc., announced Tuesday that it has reached a $2.5 billion settlement to compensate patients in the U.S. who were subject to a second surgery, known as revision surgery, to replace their recalled DePuy ASR Hip system.More than 12,000 thousand lawsuits were filed by patients against DePuy in federal and state courts related to… Read the rest

Acetabular Revision in Hip Resurfacing by Thomas Gross MD 1/9/2015

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January 9, 2015THR= total hip replacement HRA= hip resurfacing arthroplasty

If an HRA has failed, I try to solve the problem by revising only the acetabular component whenever possible because HRA are functionally better than THR. If only the acetabular component is revised, the patient still has a HRA. If the femoral component is revised, the patient now has a THA.

Currently revising only the acetabular component with a metal/metal (M/M) articulation is only … Read the rest

Acoustic Phenomena in Hip Resurfacing by Dr. Koen De Smet & Dr. Alessandro Calistri

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By Dr. Koen De Smet & Dr. Alessandro Calistri

Updated 10/2/2014

Acoustic Phenomena in Hip Resurfacing 2009 Koen De Smet, MD; Alessandro Calistri, MD

AMC Ghent, Krijgslaan 181, 9000 Ghent, BelgiumBackground: While providing superior hardness and improved wear characteristics, hard bearings such as metal-on-metal, or ceramic-on-ceramics bearings have different lubrication properties than hard on soft (metal- or ceramic-on-poly) bearing couples. A failure in this lubrication mechanism in metal-on-metal resurfacing prostheses can lead to squeaking… Read the rest