Total Joint Replacement

26 11, 2018

How knee joint injury can lead to osteoarthritis

Knee joint injuries are typically related to sports, such as football, rugby or ice hockey, but people often do not know that such injuries may lead to joint inflammation and post-traumatic osteoarthritis. In advanced post-traumatic osteoarthritis, joint cartilage breaks down completely, causing severe joint pain, lack of mobility and even social isolation. However, the mechanisms leading to osteoarthritis are not known. Currently, it is not possible for a physician examining a patient to predict future joint condition and possible development of osteoarthritis. In the future, however, this may be possible, as a new study from the University of Eastern […]

9 10, 2018

ACL repair success rates improved by long-term physical therapy

A third of people who undergo ACL reconstruction surgery will have osteoarthritis in their injured knee within 10 years. Within two decades, nearly 50 percent will — terrible odds for getting a debilitating condition with no known cure.

While no one yet knows exactly why this is the case, researchers have explored two related theories:

The knee injury itself may cause persistent and chronic inflammation resulting in underlying joint tissue changes.
People who sustain an ACL injury end up moving differently during activities like running, jumping and walking, which causes damage to cartilage over time.

Keying on those theories, researchers from […]

1 08, 2018

Overweight children have greater risk of developing knee and hip osteoarthritis

The results of a study to be presented at the Annual European Congress of Rheumatology (EULAR 2018) suggest childhood and adult obesity increase the risk of developing hip osteoarthritis (OA) and knee OA but not hand OA.

Obesity and OA are two interconnected health care problems affecting a large proportion of the adult population worldwide, however studying causality in this association is difficult due to confounding factors. To test the hypothesis that the association between obesity and OA is causal, investigators used a method know as ‘mendelian randomization’, which uses genetic variants to investigate whether a biomarker has an effect […]

3 07, 2018

SRO Patient Speaks Out About Total Shoulder Replacement Surgery

Dr. Neema Pourtaheri of Santa Rosa Orthopaedics responds to TSR patient’s story of recovery and shares information on why this surgery works so well on older patients.

Following three decades of a career in law enforcement Santa Rosa resident Michael Armstrong enjoyed being active over his 22-year stretch of retirement that followed, until a nagging shoulder pain turned into something he could no longer ignore. Unbearable pain caused by advanced arthritis, bone spurs and bruising eventually led Armstrong to be referred to Dr. Neema Pourtaheri at Santa Rosa Orthopaedics where he underwent total should replacement surgery on the right side. […]

19 06, 2018

Weight loss provides benefit for knee osteoarthritis patients

Knee osteoarthritis pain reduced by up to 50%
Researchers previously showed that overweight and obese individuals with knee osteoarthritis can reduce pain by 50% and significantly improve function and mobility with a 10% or more weight loss over an 18-month period. The investigators’ latest findings, which are published in Arthritis Care & Research, reveal that a 20% or more weight loss has the added benefit of continued improvement in physical health-related quality of life along with an additional 25% reduction in pain and improvement in function.

The results come from a secondary analysis of diet-only and diet plus exercise groups in the […]

16 01, 2018

Santa Rosa Orthopaedic’s now offers Robotic Assisted Orthopedic Surgery using MAKO®

Using a new procedure performed by Santa Rosa Orthopedic surgeons Michael McDermott, M.D., and Nathan Ehmer, D.O., joint replacement surgery advances into the future.

Santa Rosa Orthopaedics now offers a revolutionary surgical option for some joint replacement patients using the robotic assisted device called RIO Robotic Arm Interactive Orthopedic System. This highly advanced procedure is essentially a minimally invasive technique that reduces damage to the bone and surrounding tissue for faster recovery. The MAKO®  system is currently available primarily for partial knee replacement and is offered by both Dr. Michael McDermott and SRO’s Dr. Nathan Ehmer at Sutter Santa Rosa […]

19 10, 2017

Dr. Ehmer’s Patient is Back on the Court Following Total Hip Replacement

I’m so grateful to Dr. Ehmer for resolving my hip pain, making it possible to enjoy my retirement, play tennis again (every day) and return to the things I love in life. ~Theresa Lane

As an avid recreational tennis player, Theresa developed progressive hip pain over the years. Being a professional nurse with osteoarthritis, she knew that a hip replacement was inevitable. She also was well versed about the latest surgical techniques and benefits of the “anterior approach.” After extensive research, she found Dr. Ehmer was the local expert. In June, Theresa had a total hip replacement to resolve her disabling […]

25 07, 2017

New study highlights the importance of exercise in maintaining bone health

Santa Rosa Orthopaedic Surgeon Dr. Michael McDermott delves into new study indicating that brief bursts of weight bearing exercise can provide a lifetime of better bone health, helping to reduce the chances of fractures. 

Scientists from the University of Exeter reported this month results of a study indicating women who underwent brief bursts of high-intensity, weight-bearing activity equivalent to a medium-paced run for pre-menopausal women, or a slow jog for post-menopausal women, had better bone health.

“As an orthopaedic surgeon, I understand the importance exercise can play on improving bone health. Although it is a known fact that weight-bearing physical activity […]

25 05, 2017

New Study Reveals That Noisy Knee Joints May Indicate Problems Down the Road

Most us are familiar with the sound of occasional popping joints that rarely show cause for concern, but a new study from the Osteoarthritis Initiative shows that certain people who experience consistent joint popping, grating and grinding are more vulnerable to developing knee osteoarthritis. Knowing this in advance may give doctors the opportunity to treat patients before the problem becomes pronounced, potentially hedging off more severe forms of joint pain.
What is Osteoarthritis of the Knee
Osteoarthritis is the most common type of arthritis, and women are more likely to have osteoarthritis than men. While it can occur even in young […]

16 05, 2017

Majority of shoulder replacement patients under 55 return to sports

A new study being presented today at the 2017 Annual Meeting of the American Academy of Orthopaedic Surgeons (AAOS), found that 96.4 percent of recreational athletes, age 55 and younger, who underwent total shoulder replacement surgery returned to at least one sport, on average, within seven months of surgery.

Today, about 53,000 people in the U.S. have shoulder replacement surgery each year, according to the U.S. Agency for Healthcare Research and Quality. This compares to more than 900,000 Americans a year who have hip and knee replacement surgery. In shoulder replacement surgery, the damaged parts of the shoulder are removed […]

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