Dr. Kenneth Hegewald, DPM FACFAS has joined the OSM Team!

We are happy to announce the newest edition to our team – Dr. Kenneth Hegewald, DPM FACFAS!

Dr. Hegewald is a board-certified, fellowship trained podiatric foot and ankle surgeon.  He completed his undergraduate education at Carroll College in Helena, MT and podiatric medical school at Des Moines University in Iowa. He then went on to complete his foot and ankle surgical residency with Virginia Mason Franciscan Health in Tacoma, WA.

Following residency he furthered his training by completing the esteemed Silicon Valley Reconstructive Foot and Ankle Fellowship with Palo Alto Medical Foundation focused on trauma, reconstruction and total ankle replacement.

Dr. Hegewald comes to OSM with over five years of prior orthopedic foot and ankle experience treating year-round athletes in the Gorge where he worked out of Hood River, OR. He provides comprehensive foot and ankle care and offers a spectrum of advanced treatment options. He is board certified in foot, reconstructive rearfoot and ankle surgery by the American Board of Foot and Ankle Surgery. In his free time, Dr. Hegewald enjoys kiteboarding, and skiing outside of work as well as spending time with his beautiful wife, son and daughter.

We look forward to a happy future with Dr. Hegewald.

THA survivorship with highly crosslinked liners was 93% at 15 years among young patients

THA survivorship with highly crosslinked liners was 93% at 15 years among young patients

Data presented at the American Association of Hip and Knee Surgeons Annual Meeting showed total hip arthroplasty performed with a highly crosslinked acetabular liner in patients younger than 50 years of age was associated with Kaplan-Meier overall survivorship of 93% at 15 years when revision due to failure was the endpoint.

“The non-highly crosslinked group showed 87% [survivorship]. This was significantly different,” said Andrew J. Bryan, MD, who presented the results.

Six patients in the group treated with non-highly crosslinked polyethylene and no patients in the group treated with highly crosslinked polyethylene underwent revision surgery, according to Bryan’s presentation.

THA was performed in 273 patients in the study for indications that included osteoarthritis (62%), avascular necrosis (22%) and dysplasia (5%).

“There was no wear in the highly crosslinked group as noted by our method, and there was no osteolysis in the highly crosslinked group,” Bryan said.

The six revisions performed in the non-highly crosslinked polyethylene group (10.5%) were for wear.

According to Bryan, the two groups’ clinical outcomes were similar.

“The use of highly crosslinked polyethylene led to a significant reduction in risk of failure in patients less than 50 years old,” he said. – by Susan M. Rapp


Bryan AJ, et al. Paper 22. Presented at: American Association of Hip and Knee Surgeons Annual Meeting; Nov. 1-4, 2018; Dallas.

Disclosure: Bryan reports no relevant financial disclosures.

OSM expands to include new location in Providence Hospital

We are pleased to announce we have expanded our practice to three locations. You may now find us at:


1515 NW 18th Ave, 3rd Floor
Portland, OR 97209

Monday – Friday
8:00am – 4:30pm


5050 NE Hoyt, Suite 668
Portland Oregon 97213

Mon, Wed, Fri
8:00am – 4:30pm


51385 SW Old Portland Road, Suite A,
Scappoose Oregon 97056

8:00am – 2:00pm

We are currently accepting new patients at all three locations.

If you’re looking for orthopedic care in the Portland-Metro area, feel free to give us a call at 503-224-8399.

Dr. Switlyk Retirement Announcement

SubstandardFullSizeRenderWe are both happy and sad to announce that Dr. Paul Switlyk is now officially retiring from OSM.

About Dr. Switlyk

Dr. Switlyk graduated from the C.M.D.N.J New Jersey Medical School in 1979. He interned at the Medical Center Hospital of Vermont through 1980 and completed a four-year residency at Oregon Health & Science University in 1986. He completed a shoulder fellowship at University of Western Ontario with Richard Hawkins MD. Dr. Switlyk has practiced in Portland since 1987 and is board-certified with a special interest in the treating the shoulder and elbow. He has also served as a Clinical Senior Instructor in the Orthopaedics & Rehabilitation Department at OHSU.

OSM would like to thank Dr. Switlyk for his years of dedication and wish him a long and happy retirement!


Dr. Charles Petit has joined the OSM Team!

We are happy to announce the newest edition to our team – Dr. Charles Petit!

charles-2Graduated from Yale University in 1999 where he was captain of the men’s basketball team. He then attended UC San Diego School of Medicine, after which he completed his orthopedic surgical residency at the Harvard Combined Orthopedic Residency Program. He received advanced training in sports medicine and knee, shoulder, and hip arthroscopy at The Steadman-Hawkins Clinic in Vail, Colorado where he was an associate team physician for the Denver Broncos and the US Ski and Snowboard Teams.

From 2009 to 2014, Dr. Petit was in private practice in Hood River and The Dalles. He remains an active assistant team physician for the US Ski and Snowboard teams. His practice focuses on the arthroscopic treatment of knee, shoulder and hip injuries in athletes of all ages.

Dr. Petit is one of only a few surgeons in the northwest who is an expert in arthroscopic hip surgery. He also has a very strong background in joint reconstruction including knee and hip replacements, as well as complex shoulder reconstruction. In his free time, Dr. Petit enjoys flyfishing, basketball, snowboarding, and mountain biking.

We look forward to a happy future with Dr. Petit.