Dr. Mansmann misdiagnosed my knee issue and prescribed physical therapy before an MRI. Moving on my knee was causing so much pain I was walking with a cane by the time I went to him. I found Dr. Benner at West Chester and got an MRI done. It was inconclusive but showed fluid. He did arthroscopic surgery, found the issue and fixed it. I can walk again! Had I followed Dr. Mansmann advice I would be in a worse situation. He dismisses clients and does not listen. He gave me dangerous advice. I would recommend avoiding him. Premiere Chester County Orthopaedic Associates (CCOA) is much better