News | December 04, 2014

Study Presented at RSNA Says Common Knee Surgery May Lead to Arthritis and Cartilage Loss

A popular surgery to repair meniscal tears may increase the risk of osteoarthritis and cartilage loss in some patients

Meniscal tears, sagittal, arthritis, cartilage loss

Sagittal intermediate-weighted fat-saturated image shows a typical horizontal-oblique meniscal tear of the posterior horn reaching the undersurface of the meniscus (arrows).

Meniscal tears, sagittal, arthritis, cartilage loss

Coronal proton density-weighted image shows another example of a tear, which represents a vertical tear of the posterior horn of the medial meniscus (arrow).

Meniscal tears, sagittal, arthritis, cartilage loss

Sagittal intermediate-weighted fat-saturated image post-surgery shows substance loss of the posterior horn of the medial meniscus (large arrows) and concomitant cartilage loss at the central medial tibia and femur (small arrows).

Meniscal tears, arthritis, cartilage loss

A horizontal tear of the posterior part of the meniscus of the knee.

December 4, 2014 — According to research presented at RSNA 2014, decision for knee surgery requires careful consideration in order to avoid accelerated disease onset.

The new study focused on the meniscus, a wedge-shaped piece of cartilage in the knee that acts as a shock absorber between the femur and tibia. The two menisci in each knee also play an important role in joint stability. Meniscal tears are among the most common knee injuries, and surgery is often performed to alleviate pain.

Frank W. Roemer, M.D., and colleagues examined data from the Osteoarthritis Initiative, a large, ongoing observational study of knee osteoarthritis incidence and progression for the study. Patients were on average 60.2 years old and predominantly overweight, with a mean body mass index (BMI) of 28.3. Approximately two-thirds of the patients were women.

The researchers studied magnetic resonance imaging (MRI) exams of 355 knees that developed osteoarthritis during a five-year period, and a control group that was matched for age, gender, arthritic severity in both knees and BMI. Of all knees, 31 underwent meniscal surgery during the year prior to the arthritis diagnosis, and 280 knees had signs of meniscal damage on MRI but did not have surgery. Also part of the analysis were control cases with no meniscal damage. The researchers assessed the risk of developing arthritis and cartilage loss during the following year for the different groups.

All 31 of the knees that underwent meniscal surgery during the prior year developed osteoarthritis, compared with 165 (59 percent) of the knees with meniscal damage that didn't have surgery. In addition, cartilage loss was much more common among knees that had undergone surgery: 80.8 percent of knees with surgery showed cartilage loss, compared with 39.5 percent of knees with meniscal damage and no surgery.

An alternative to surgery is conservative management where physical therapy is prescribed to help maintain and restore muscle strength and range of motion. Symptoms are commonly treated with ice and non-steroidal anti-inflammatory medications.

Co-authors on the study are Ali Guermazi, M.D., Ph.D.; C. Kent Kwoh, M.D.; Michael Hannon, M.A.; Jason Grago, M.A. and David J. Hunter, M.D., Ph.D.

For more information: www.RSNA.org

Related Content

Doctor-Patient Discussions Neglect Potential Harms of Lung Cancer Screening
News | Lung Cancer | August 15, 2018
August 15, 2018 — Although national guidelines advise doctors to discuss the benefits and harms of...
Videos | Magnetic Resonance Imaging (MRI) | August 13, 2018
Haojie Wang, M.D., director of advanced cardiovascular MRI and a member of the heart valve clinic at Baylor Scott Whi
ACR LI-RADS Steering Committee Releases New Version of CT/MRI LI-RADS
News | Clinical Decision Support | August 13, 2018
August 13, 2018 — The American College of Radiology Liver Imaging Reporting and Data System (LI-RADS) steering commit
Indiana Hospital Installs First Vantage Titan/Zen Edition 1.5T MRI in U.S.
News | Magnetic Resonance Imaging (MRI) | August 10, 2018
Patients in Pulaski County, Ind., now have access to quiet, comfortable magnetic resonance (MR) exams thanks to the...
3T MRI Installed at The London Clinic Through Hospital Roof

Image courtesy of The London Clinic

News | Magnetic Resonance Imaging (MRI) | August 08, 2018
Patients at The London Clinic, a private hospital and charity, will be the first in the United Kingdom to access the...
Cardiac Imaging Reveals Roots of Preeclampsia Damage in Pregnant Women
News | Women's Health | August 07, 2018
Johns Hopkins researchers say a heart imaging study of scores of pregnant women with the most severe and dangerous form...
Cardiac Monitoring a Higher Priority for High-Risk Breast Cancer Patients
News | Cardio-oncology | August 07, 2018
August 7, 2018 — While heart failure is an uncommon complication of...
Videos | Contrast Media | August 03, 2018
Lawrence Tanenbaum, M.D., FACR, vice president and director of advanced imaging at RadNet, discusses the latest resea
Videos | Magnetic Resonance Imaging (MRI) | August 01, 2018
Robert Junk and Tobias Gilk, MRSO, MRSE, of architectural firm RAD-Planning, discuss the different types of safety ha
Thirty-Six Percent of Medical Facilities Not Compliant With MRI Safety Standards
News | Magnetic Resonance Imaging (MRI) | July 27, 2018
Global magnetic resonance imaging (MRI) safety firm Metrasens recently conducted a survey in which 36 percent of 162...
Overlay Init