Hip replacement, Knee replacement, Peripheral nerve tumor surgery, Soft tissue sarcoma surgery, Pelvic tumor surgery, B...one metastasis surgery, Bone reconstruction, Hip replacement revision, Knee replacement revision, Arthroplasty, Bone cancer, Hip arthritis, Knee arthritis, Soft tissue sarcoma, Sarcoma, Bone metastasis, Failed total hip replacement, Failed total knee replacement, Pelvic bone tumor, Bone tumor, Pelvic sarcoma, Soft tissue tumor, Periprosthetic joint infection