Navigation Links
Noted Vertebroplasty Expert Cites Concerns About Recently Published Study
Date:8/11/2009

Dr. Mubin Syed evaluates findings; calls for additional research

DAYTON, Ohio, Aug. 11 /PRNewswire/ -- A new study by Mayo Clinic researchers has given rise to more questions than answers about the effectiveness of vertebroplasty to treat osteoporotic spinal fractures.

Vertebroplasty is a widely used procedure in which medical cement is injected into vertebrae to relieve pain and improve mobility in patients who have osteoporotic fractures. This study, funded by the National Institutes of Health, was the first of its kind, using a double-blinded research model to examine the impact of vertebroplasty. It was published last week in The New England Journal of Medicine to mixed reviews by the medical community.

"This was an extremely interesting study, but the results are far from conclusive due to several weaknesses in the method used. Additional research is definitely indicated," said Dr. Mubin I. Syed, a neuroradiologist and diagnostic, interventional and vascular radiologist.

One major issue cited by Dr. Syed was the small size of the study group. To demonstrate statistical differences between groups requires that the research team enroll enough patients for the statistics to have meaning. The original group size for the Mayo Clinic study was to be 250 patients. Due to difficulties in recruiting participants, the final group size was reduced to 131 people, nearly half of the original design.

"This is important," explained Dr. Syed, "because the trends in the data show that if the study had enough patients, the group receiving vertebroplasty could have demonstrated a clinically meaningful improvement in pain. It is therefore surprising that a study that was showing a trend toward statistical significance was terminated early with only half the number of patients recruited. A huge doubt now remains as to whether a study with the original intended group size would have yielded a different outcome."

Additionally, selection bias could have also played a large part in the study's results. "Only 131 out of 431 (30.4 percent) eligible patients elected to participate, increasing the potential for selection bias," noted Dr. Syed.

A third issue was the crossover rate for patients who received the control or "placebo" procedure. Patients in the trial were able to "cross over" and get the other treatment after one month.

"Even though they had no confirmation of which treatment they received, nearly four times as many patients or 43 percent who had the control treatment crossed over to have vertebroplasty performed, compared to 12 percent of vertebroplasty patients who switched," said Dr. Syed.

The final issue to consider is that the control procedure included injecting 0.25 percent of bupivicaine into the periosteum of the pedicles. "The problem," explained Dr. Syed, "is that this resembles a medial branch block for the treatment of facet-related pain. The duration of relief following medial branch block is variable, but may last for several weeks."

He added that many patients with compression fractures have concurrent facet-related pain due to stress on the facet joint as a result of the fracture.

"I applaud Dr. Kallmes for his work. His study is very interesting, but I don't think it's conclusive. Additional research is needed to truly assess the efficacy of vertebroplasty," said Dr. Syed.

Dr. Syed is on staff at Good Samaritan Hospital and Dayton Heart Hospital in Dayton. He is also a founding partner of Dayton Interventional Radiology. In addition, Dr. Syed has participated in clinical trials and published several papers on vertebroplasty.


'/>"/>
SOURCE Dr. Mubin I. Syed
Copyright©2009 PR Newswire.
All rights reserved

Related medicine news :

1. Signs of Depression Noted in Second Graders
2. UPDATE: Swine Flu Spread Will Trigger Difficult Legal Questions for Employers Says Noted Pillsbury Attorney
3. Swine Flu Plans Triggering Difficult Legal Questions, Says Noted Pillsbury Attorney
4. Kouros Azar, M.D. (doctorazar.com), Noted Plastic and Reconstructive Surgeon, Offers Top 10 Tips to Patients to Help Celebrate National Patient Safety Awareness Week
5. Noted State Government Medical Director Dr. Stephen Saunders To Join APS Healthcare
6. Three Noted Women of Valor to be Honored at Los Angeles Jewish Home Gala Dinner
7. 4th annual Templeton-Cambridge fellowships awarded to 10 noted journalists
8. Noted Litigator Peter Diedrich Joins Musick Peeler & Garrett LLP
9. 39 Noted Performing Artists Urge Congress to Fix Flaws in Presidents Global AIDS Plan
10. Los Angeles Jewish Home Support Group Continues High-Profile Speaker Program With Noted Legal Scholar and Expert Laurie L. Levenson
11. Arizona Pain Specialists Contend Recent Vertebroplasty Studies are Misleading: Studies Actually Show it is Effective at Reducing Pain
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... ... October 13, 2017 , ... ... Arkansas that offers insurance and financial preparation services, is providing an update on ... Rescue organization. , Rock City Rescue is a locally recognized nonprofit that provides ...
(Date:10/13/2017)... ... October 13, 2017 , ... The International Association ... standards of excellence for the field of eating disorders, announces the opening of ... 2018 in Orlando, Florida at the Omni Resort at ChampionsGate. , ...
(Date:10/13/2017)... ... ... Apple Rehab Shelton Lakes , which specializes in the delivery of sub-acute ... of a disaster drill on October 3rd. , Apple Rehab participated with the Shelton ... well as the Connecticut Long Term Care Mutual Aid Plan (LTC-MAP). The LTC-MAP ...
(Date:10/13/2017)... ... ... Global Healthcare Management’s 4th Annual Kids Fun Run brought out many kids ... sponsored by Global Healthcare Management’s CEO, Jon Letko, is aimed at getting kids excited ... all ages; it is a non-competitive, non-timed event, which is all about having fun ...
(Date:10/13/2017)... ... ... “The Journey: From the Mountains to the Mission Field”: the story of a ... “The Journey: From the Mountains to the Mission Field” is the creation of published ... all ages and currently teaches a class of ladies at her church, which she ...
Breaking Medicine News(10 mins):
(Date:9/19/2017)... Mich. , Sept. 19, 2017 HistoSonics, Inc., a venture-backed medical device company ... destruction of targeted tissues, announced three leadership team developments today:   ... PhD ... ... Veteran medical device executive Josh ...
(Date:9/18/2017)... 2017 EpiVax, Inc. ("EpiVax") a ... immune engineering, today announced a new NIH-funded ... ... and presents a challenge for traditional flu ... be effective. Using state-of-the-art bioinformatics and molecular modeling methods, ...
(Date:9/12/2017)... -- Consumer reviews on the independent review site Consumer Affairs ... for hearing aids, ranking it higher than Miracle Ear ™, ... ... Hearing Aids ... store that provides high performance, state-of-the-art, German-engineered hearing aids directly to ...
Breaking Medicine Technology: