Knee and hip replacement has changed a lot over the years and KYW Newsradio’s Lynne Adkins takes a look at the differences with Dr. Christopher Selgrath, an orthopedic surgeon at Nazareth Hospital in Philadelphia.

<p>Knee and hip replacement has changed a lot over the years and KYW Newsradio&rsquo;s Lynne Adkins takes a look at the differences with Dr. Christopher Selgrath, an orthopedic surgeon at Nazareth Hospital in Philadelphia.</p>

The latest health news and information from Trinity Health Mid-Atlantic – 
Nazareth Hospital.

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