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Hip & Knee Replacement
Minimally Invasive
Orthopedic Surgery

Dr. Weidner specializes in minimally invasive anterior total hip replacements as well as MAKO robotic partial and total knee replacement surgeries. 

Anterior hip replacement
Anterior Total Hip Replacement


Direct anterior total hip replacement is a minimally invasive technique for total hip replacement surgery allowing for less pain and a quicker recovery.  Anterior total hip replacement is a great procedure to relieve the hip pain from hip arthritis and is one of the most successful surgeries in all of medicine. 

Robotic partial knee replacement Mako
Robotic MAKOplasty® Partial Knee Replacement

Also known as a unicompartmental arthroplasty, partial knee replacement can be a very successful procedure for the right patient with arthritis in only one part of the knee.  It can be done with robotic assistance (MAKOplasty®) to allow for more precise alignment of the components. 

total knee replacement
Robotic MAKOplasty® Total Knee Replacement

Total knee replacement is done much more commonly than partial knee replacement.  It involves replacing the entire knee with metal and plastic parts to relieve the knee pain associated with severe knee arthritis. It can now be performed with robotic-arm assistance (MAKOplasty®) for more precision and quicker recovery.

The Centers for Advanced Orthopaedics
Prince William Orthopaedics
Dr. Zachary Weidner



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