Navigation Links
Arthroscopic treatment of common hip problem improves range of motion

Arthroscopic treatment of a common hip problem that leads to arthritis is successful in terms of restoring range of motion, according to results from a recent Hospital for Special Surgery study. The study will be presented at the annual meeting of the American Orthopaedic Society for Sports Medicine, held July 7-11 in San Diego.

"This is the first study to show that in patients who are being treated for hip impingement with arthroscopy, not only do we restore their mechanical measurements, but by doing so, we have improved their functional range of motion across the joint," said Bryan T. Kelly, M.D., co-director of the Center for Hip Pain and Preservation at Hospital for Special Surgery in New York.

This study received the 2011 Excellence in Research Award from the American Orthopaedic Society for Sports Medicine.

In recent years, a hip condition known as femoro-acetabular impingement (FAI) or hip impingement has become widely recognized as one of the most common causes of early osteoarthritis in the hip. The hip is a ball-and-socket joint where the upper end of the thigh bone fits into the cup-shaped socket of the pelvis. In a healthy hip joint, the ball rotates freely in the cup, but in some people a bony bump on the upper thigh bone produces a situation where there is inadequate space for the hip bone to move freely in the socket. The result is damage to the socket rim and the cartilage that lines the bones, which can lead to hip arthritis.

Structural correction of the bone through arthroscopic or open surgery has been shown to be successful at relieving symptoms of FAI and returning athletes to their sport of choice. Before this study, however, researchers had not studied how good arthroscopic repair was at restoring range of motion.

To find out, researchers at Hospital for Special Surgery in New York City used computer-assisted, three dimensional analysis to assess differences in hip range-of-motion before and after the arthroscopic treatment of FAI. The study included 10 patients with symptomatic FAI who underwent a computed tomography (CT) scan before and after surgery. The CT scan was then fed into a software program that generated a three dimensional, animated picture of their hip joint.

"Their hip is moved in the computer program until there is collision between the ball and the socket. It assesses the point at which impingement occurs," explained Dr. Kelly. "Postoperatively, another CT scan is obtained and we assess the same range of motion."

The researchers found great improvements in internal rotation, moving your knee to the middle of your body, and in hip flexion, the motion of bringing your knee to your chest. Hip flexion was improved by 3.8 degrees and internal rotation was improved by 9.3 degrees. A comparison of the alpha angle, which measures the roundness of the femoral head (ball of the thigh bone), showed an improvement of roughly 20 degrees.

"Before this study, we did not know what our ability was to functionally improve range of motion across a hip joint in a patient who has had surgical correction of their underlying hip impingement," said Dr. Kelly. "With this study, we have clear objective data, confirming with dynamic assessment, that by improving the mechanical shape of the joint, we significantly improve range of motion and significantly reduce the areas of bony conflict."


Contact: Phyllis Fisher
Hospital for Special Surgery

Related medicine news :

1. Large study of arthroscopic rotator cuff repair reveals some surprises
2. New study finds arthroscopic hip surgery may fully restore function in athletes
3. Brain tumor discovery could lead to new treatment
4. Gold nanoparticles bring scientists closer to a treatment for cancer
5. Transcription factor is potential target for liver cancer treatment
6. U.S. Database of Breast Cancer Treatment May Be Inaccurate
7. Ethnic, gender stereotypes bias treatment of Parkinsons disease
8. Elderly Dutch lung patients survival improved by new treatment options between 2003-2009
9. Integrating science and medicine in the treatment of chronic disease
10. Citywide study shows racial disparities in emergency stroke treatment
11. Georgetown research identifies key reasons racial disparities exist in emergent stroke treatment
Post Your Comments:
(Date:11/27/2015)... ... 27, 2015 , ... A team of Swiss doctors has released a report ... has just posted the findings on the website. Click here to read the ... 136 mesothelioma patients who were treated with chemotherapy followed by EPP surgery. Among the ...
(Date:11/27/2015)... ... 2015 , ... ProSidebar: Fashion is a set of 30 kinetic ... Fasion, video editors can easily add an informative sidebar to any FCPX production. ... presets featuring self-animating drop zones, lines, bars, and text with the ease of FCPX's ...
(Date:11/27/2015)... ... 27, 2015 , ... The moment you stop improving is ... fulfilling the needs of advisers and clients but going above and beyond to ... customer service. However, there's always room for improvement, which is why the entire ...
(Date:11/27/2015)... , ... November 27, 2015 , ... Avid collector, Andrew ... Arbor Michigan boxing style concert posters. This is one of Joplin's most famous and ... House at the University of Michigan in Ann Arbor. The According to Hawley, "It ...
(Date:11/26/2015)... (PRWEB) , ... November 26, 2015 , ... ... American Express Travel Representative. As a franchise owner, Somu now offers travelers, value ... cruise, destination wedding packages, private cruise sales, as well as, cabin upgrades and ...
Breaking Medicine News(10 mins):
(Date:11/27/2015)... , Niederlande, November 27, 2015 ... fotodynamischer Bremachlorin-Therapie bei fortgeschrittenem Krebs.   --> ... Bremachlorin-Therapie bei fortgeschrittenem Krebs.   --> ... Bremachlorin-Therapie bei fortgeschrittenem Krebs.   Clinical ... --> Clinical Cancer Research vom ...
(Date:11/26/2015)... , November 27, 2015 /PRNewswire/ ... --> Medical ... response system (PERS) market is ... 5 years with APAC being ... to see a high CAGR ...
(Date:11/26/2015)... 26, 2015 ... aanpak combineert immunotherapie met Bremachlorin-photodynamische therapie voor ... ) --> ... ) Uit ... Centrum (LUMC) blijkt ...
Breaking Medicine Technology: