I am a 78 year old male who has been jogging/running for over 60 years. My right hip has been been increasingly troublesome over the last 5 years, and recently has deteriorated sharply. Xrays indicate a replacement hip is required, and I am determined to continue running. Normally I run around 50 miles a month. I would appreciate it if I could get some guidance as to the type of ball/socket combination might be the most suitable. Thank you.