Archive | June, 2017

Customized Knee Resurfacing Creates a Perfect Fit

You’ve heard of custom suits and custom drapes. But how about custom knee implants – completely designed for you and guaranteed to be a perfect fit?

For patients with severe knee arthritis, this surgery is now available at Carolina Shoulder & Knee Specialists, a Lexington Medical Center physician practice.

Knees vary in size and shape. Even a person’s two knees may be different sizes. Traditionally, knee implants come in six to 10 standard sizes. Doctors select the one that fits the patient best during your surgery.

But for patients who have leg bones that are especially wide, narrow or odd-shaped, finding the perfect fit can be difficult.

“It can be like wearing your dad’s shoe. It’s a shoe, but it might not fit you correctly,” said Kevin Nahigian, MD, of Carolina Shoulder & Knee Specialists.

Dr. Kevin Nahigian

If a knee implant doesn’t fit properly, patients may experience pain or a knee that doesn’t feel natural.

Patients who choose customized knee resurfacing first have a diagnostic CT scan of their knee. The physician’s office sends the scan to ConforMIS, the company behind the technology. ConforMIS uses the scan to create a 3-D model of the knee and develop an individualized implant made of titanium cobalt chrome. The process takes about six weeks, and the implant is delivered to Lexington Medical Center a few days before surgery.

“The implants are designed to follow the shape and contour of each patient’s knee, which increases the potential for a more natural-feeling knee,” said Dr. Nahigian. “Customized implants also allow for optimal bone preservation.”

Patients can bear full weight on their knee on the day of surgery and go home from the hospital the next morning.

From exercising to playing with grandkids, the goal of customized knee resurfacing is to have patients back to enjoying an active lifestyle with the best results possible.

From the Comfort of Your Own Bed

How Home Sleep Studies Help Patients Rest Well

If you wake up a lot during the night or you feel exhausted during the day, you may have a sleep disorder.

Sleep studies can help your doctor determine if you have an underlying disorder that’s affecting how well you sleep. Some people may need to have an overnight study in a sleep lab, but others can benefit from an at-home test.

Dr. Sarkis Derderian

To have a home sleep study, your primary care physician has to order one. You can also schedule an appointment at Lexington Sleep Solutions for an initial evaluation. During that evaluation, if you qualify for a sleep study, the doctor can order a home sleep test or a sleep study to be completed at the sleep lab.

“A home sleep test measures heart rate, oxygen levels, airflow and breathing effort,” said Sarkis S. Derderian, DO, FCCP, at Lexington Sleep Solutions. “A small microphone on the home sleep test measures the degree of snoring.”

Home tests are ideal for people who are at high risk for sleep apnea. These people are frequently tired during the day, snore, have morning headaches, experience unrefreshing sleep, have difficulty concentrating or experience memory loss. Home sleep studies serve as a helpful tool to diagnose patients who are home bound, elderly or who require a caregiver.

But not all home sleep studies are created equally.

“Different types of devices measure different parameters. Some measure only two things, like oxygen and heart rate, while others measure four or more things, such as oxygen, heart rate, airflow and breathing effort,” said Dr. Derderian.

The biggest benefits of a home sleep test for patients are cost and convenience.

“Home tests are less expensive because they do not require ancillary support and equipment. You are able to pick up the equipment at your convenience and drop it off the next day without having to plan for an overnight stay,” he said.

You are also in the comfort of your own bed during a home test.

“Patients may feel a little hindered with a few extra wires, but most people do not have any trouble sleeping normally in their own beds. Sleeping normally will give the doctor the best picture of your sleep,” said Dr. Derderian.

At Lexington Sleep Solutions, a trained sleep technician shows you how to set up the equipment and answers any questions when you pick up the study equipment. When you return the next day, the sleep technician gathers your information for a board-certified sleep physician to interpret your results.

“If you do not have a high probability of sleep apnea, a home sleep test may not be beneficial to you,” said Dr. Derderian. “If you have certain medical conditions, such as congestive heart failure, lung disease or neuromuscular disease, your physician may recommend that you complete an in-lab study that provides a more complete evaluation of your sleep.”