Acetabular repair, Direct anterior approach hip replacement, Hip fracture surgery, Hip replacement, Hip replacement rev...ision, Knee fracture surgery, Knee replacement, Knee replacement revision, Lower extremity reconstruction, Partial knee replacement, Robot-assisted partial knee resurfacing, Unicompartmental knee replacement, Acetabular fracture, Arthritis, Failed total hip replacement, Failed total knee replacement, Hip arthritis, Hip dysplasia, Infected total hip replacement, Infected total knee replacement, Knee arthritis, Periprosthetic fracture, Prosthetic joint infection