New York—October 24, 2012
Selected research from the summit is published in the September issue of the HSS Journal, the Musculoskeletal Journal of Hospital for Special Surgery. One of the studies is provided with open access online and the others are available free of charge through Dec. 1, 2012, at http://www.springerlink.com/content/1556-3316/8/3/.
“The meeting is a comprehensive look at a wide spectrum of hip disorders, from conditions that affect children, to things that affect adolescents and young athletes, going all the way up the spectrum to arthritis and degenerative conditions,” said Edwin Su, M.D., an orthopedic surgeon in the Adult Reconstruction and Joint Replacement Service at Hospital for Special Surgery in New York City. “It is important to understand that these things are all related. A disorder that happens in children can lead to arthritis later, which is why there is a lot of focus on trying to preserve the hip joint.”
In recent years, a growing number of academic centers have begun to open specialized hip centers, in which several physicians provide a continuum of care for various hip conditions that impact individuals of varying ages. The Joint Preserving and Minimally Invasive Surgery of the Hip Symposium has been held nine times since 2001. This most recent meeting was a collaborative effort between Hospital for Special Surgery and the University of Ottawa, Ottawa, Canada.
“This is a collaborative effort between two academic centers who have a number of hip specialists and have frequent discussions about these conditions,” said Dr. Su. “But this gathering involved international researchers, so it was also an international collaboration.”
A large number of studies in the special HSS Journal issue discuss new research avenues for treating osteoarthritis of the hip, including advances in hip replacement. Osteoarthritis is now the number one cause of disability in the United States. HSS researchers discuss the ideal size of the head of the hip replacement, and experts from Sydney Hip and Knee Surgeons, North Sydney, New South Wales, Australia, discuss the pros and cons of using ceramic-on-ceramic materials in hip prostheses.
While metal-on-metal hip replacements have fallen out of favor in recent years due to adverse effects, a study by French researchers at the University of Lille, Lille, France, shows that the use of metal-on-metal bearings should not be discarded and provides favorable outcomes.
Another study performed by researchers from the University of Lille on behalf of the French Orthopedic Society, Lille, France, identified a new treatment to prevent total hip replacement dislocation.
Investigators from the University College London Hospitals describe a new assessment tool, a hip score, to evaluate the success of hip procedures. Current instruments are unable to differentiate between a high performing hip replacement and a routine hip replacement, and the new score could help.
The special hip journal issue also focuses a great deal of attention on treatments for hip impingement, otherwise known as femoracetabular impingement (FAI). “Treatment of FAI is one of the most rapidly growing surgeries in hip surgery,” said Dr. Su.
FAI is caused by abnormal contact between the ball and socket of the hip joint, which causes friction during hip movements that can damage the joint. “As we have developed imaging techniques and an understanding of the pathology of FAI, our ability to treat these problems has increased,” said Dr. Su. “There is the promise of trying to prevent the development of arthritis in patients with FAI.”
A study by investigators at the Mayo Clinic, Rochester, Minn., concludes that surgical hip dislocation should be used to treat FAI only in specific patients over the age of 40, those who do not have joint degeneration. Another project by scientists from the University of Berne, Berne, Switzerland, and the Schulthess Clinic, Zurich, Switzerland, showed that patients had better outcomes when surgeons treating FAI made attempts to preserve the ring of cartilage that surrounds the hip joint socket rather than remove it.
Other studies discuss the phenomenon of groin pain after hip resurfacing (University of Ottawa) and validate using cementless hip resurfacing (University of Lille). “Hip resurfacing is done for arthritis, but is generally done in younger patients. The average age for a hip replacement is mid 60s and the average age for resurfacing is about 50,” said Dr. Su.
The Center for Hip Preservation was established at Hospital for Special Surgery in 2010. It aims to provide care for patients of all ages with hip pathology, ranging from developmental dysplasia of the hip, to sports-related injuries, to degenerative arthritis. Physiatrists, pediatric orthopedic surgeons, sports medicine surgeons, and arthroplasty surgeons all practice in the center, allowing for a spectrum of non-operative and operative treatments.
About HSS | Hospital for Special Surgery
HSS is the world’s leading academic medical center focused on musculoskeletal health. At its core is Hospital for Special Surgery, nationally ranked No. 1 in orthopedics (for the ninth consecutive year) and No. 3 in rheumatology by U.S.News & World Report (2018-2019). Founded in 1863, the Hospital has one of the lowest infection rates in the country and was the first in New York State to receive Magnet Recognition for Excellence in Nursing Service from the American Nurses Credentialing Center four consecutive times. The global standard total knee replacement was developed at HSS in 1969. An affiliate of Weill Cornell Medical College, HSS has a main campus in New York City and facilities in New Jersey, Connecticut and in the Long Island and Westchester County regions of New York State. In 2017 HSS provided care to 135,000 patients and performed more than 32,000 surgical procedures. People from all 50 U.S. states and 80 countries travelled to receive care at HSS. In addition to patient care, HSS leads the field in research, innovation and education. The HSS Research Institute comprises 20 laboratories and 300 staff members focused on leading the advancement of musculoskeletal health through prevention of degeneration, tissue repair and tissue regeneration. The HSS Global Innovation Institute was formed in 2016 to realize the potential of new drugs, therapeutics and devices. The culture of innovation is accelerating at HSS as 130 new idea submissions were made to the Global Innovation Institute in 2017 (almost 3x the submissions in 2015). The HSS Education Institute is the world’s leading provider of education on the topic on musculoskeletal health, with its online learning platform offering more than 600 courses to more than 21,000 medical professional members worldwide. Through HSS Global Ventures, the institution is collaborating with medical centers and other organizations to advance the quality and value of musculoskeletal care and to make world-class HSS care more widely accessible nationally and internationally.