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COVID-19 Coronavirus

From lifestyle tips to patient resources, up-to-date information is all right here. Whether you’re a patient, referring physician, or caregiver, these articles share insights, logistics, and advice for helping and healing.

For Patients

Mako Robotic-Arm - Partial Knee

Mako Robotic-Arm Assisted Technology provides you with a personalized surgical plan based on your unique anatomy.

Mako Robotic-Arm - Total Knee Replacement

Mako Robotic-Arm Assisted Technology provides you with a personalized surgical plan based on your unique anatomy.

COVID-19 Coronavirus

COVID-19 Coronavirus Information. Most commonly asked questions and answers.

Neurology Forms

Download and Print Forms for Neurology Appointments

CNOS Pain Management

CNOS Physicians understand that many conditions cause pain and that to relieve pain surgically, you may experience acute post-operative pain. To help you understand our prescription policy for post-operative pain medications, please read more.

Referring Patients

We know you have a choice when it comes to referring your patients for specialized health care. The physicians and staff want to thank you for placing your trust in CNOS to care for your patients.

Direct Anterior Hip Replacement

Functional limitations due to hip pain are caused by a number of symptoms and factors. If arthritic changes are noted, a total hip arthroplasty may be indicated. Recent developments can significantly reduce recovery time and the rate of dislocation.

Femoroacetabular Impingement (FAI)

Younger patients with FAI report a history of groin pain and/or a painful catching or popping of the hip. If your symptoms don’t improve with rest and NSAIDS, Femoroacetabular Impingement may be the diagnosis.

CNOS ATC Mark Schoenfelder discusses Football and Injury Screenings

Athletic Trainer Mark Schoenfelder talks with Your Sports Show host Curtis Anderson about the upcoming football schedule and injury screenings.

Sports Medicine

Athletic Trainer Mark Schoenfelder Talks With Curtis Anderson About Sports In a COVID-19 World

CNOS Athletic Trainer Mark Schoenfelder talks with Radio Host Curtis Anderson about the changes in sports due to COVID-19 and the fragility of the summer season.

Migraine and Headache Options

Migraine and Headache are very common neurological conditions. With evaluation and treatment, we can do more for patients now compared to years, even months ago.

In the News: Dr. Brian Johnson Discusses Shoulder Injuries in the Summer

With summer sports in full swing, often times shoulder injuries are prevalent. Shoulder injuries are frequently caused by athletic activities that involve excessive, repetitive, overhead motion, such as swimming, tennis, pitching, and weightlifting. Dr. Brian Johnson, an orthopedic surgeon at CNOS, says that the body’s main protective signal is pain- and that you should always listen to it.

In the News: Dr. Brian Johnson on Reverse Total Shoulder Surgery

Reverse total shoulder surgery helps patients with shoulder conditions that make standard shoulder replacements difficult. Dr. Johnson was featured for his work on this procedure.

In the News: Dr. Nguyen Talks Concussion Management

The Sioux City Journal talks to Dr. Nguyen about dealing with concussions on and off the field, encouraging a conservative approach for teen athletes.