Spinal fusion, Bone biopsy, Sacrectomy, Amputation, Spine procedure, Vertebral column resection, Hemipelvectomy, Spine ...decompression, Surgical biopsy, Fracture treatment, Spondylolisthesis surgery, Spinal stabilization surgery, Spine reconstruction, Limb salvage surgery, Spine tumor surgery, Pelvic tumor surgery, Bone metastasis surgery, Cancer treatment, Tumor biopsy, Tumor resection, Surgical stabilization of metastatic bone cancer, Prophylactic surgery, Spinal stenosis, Bone cancer, Osteosarcoma, Spondyloarthritis, Bone metastasis, Spinal abscess, Spinal tumor, Pelvic bone tumor, Spondylolisthesis, Spondylosis, Spondylotic myelopathy, Spinal cord injury, Chondrosarcoma, Pathologic fracture, Sarcoma, Chordoma, Cancer, Stage 4 colorectal cancer, Stage 4 breast cancer, Cancer of unknown origin, Soft tissue sarcoma, Soft tissue tumor, Stage 4 melanoma, Spinal fracture, Spondylolysis, Spinal metastasis, Pelvic sarcoma, Tumors and masses