Orthopaedic Oncology & Revision Surgery Expert

Specialties & Experience of this Expert Witness

Additional Information

Nathan F. Gilbert, MD, FAAOS is a board certified orthopaedic surgeon based in Dallas, Texas, with more than 15 years of active subspecialty practice in orthopaedic oncology and sarcoma surgery, complex reconstruction and revision joint arthroplasty, prosthetic joint infection, and orthopaedic infection management. He provides expert witness services to plaintiff and defense counsel nationally through Apex Orthopaedic Oncology and Complex Reconstruction Consulting. Dr. Gilbert trained at UT Southwestern Medical Center and completed his subspecialty fellowship in orthopaedic oncology at The University of Texas MD Anderson Cancer Center. He performs approximately 750 surgical cases annually, including approximately 400 revision joint arthroplasty procedures per year — among the highest volumes in the United States — and more than 200 prosthetic joint infection cases per year across all joint systems. He additionally performs approximately 200 orthopaedic oncology cases per year and is the institutional go-to surgeon for orthopaedic infection management at two major Dallas-Fort Worth hospital systems. Dr. Gilbert has served as Chief of Orthopaedic Surgery at two major DFW institutions and has founded orthopaedic oncology programs at Children's Medical Center Dallas, Cook Children's Medical Center, Parkland Memorial Hospital, and Baylor University Medical Center. He holds academic appointments at Texas A&M University College of Medicine and previously at UT Southwestern Medical Center. AREAS OF FORENSIC EXPERTISE Revision Joint Arthroplasty: Failed hip, knee, and shoulder replacement. Standard of care, causation, implant failure, and future care projection. Approximately 400 revision procedures per year — among the highest volumes nationally. Prosthetic Joint Infection: Diagnosis, treatment selection, and standard of care across all joint systems. More than 200 PJI cases per year. Two-stage revision and DAIR. Institutional go-to surgeon at two major DFW hospital systems. Orthopaedic Infection: Post-operative wound infections, osteomyelitis, septic arthritis, infected fracture hardware, and soft tissue infections. Founded infection management programs at multiple major DFW institutions. Orthopaedic Oncology: Fellowship-trained at MD Anderson Cancer Center. Approximately 200 oncology cases per year. Delayed and missed bone tumor diagnosis, limb salvage, post-oncologic reconstruction. Implant Products Liability: Metal-on-metal hip devices, component failure, modular junction corrosion, polyethylene wear. Extensive hands-on experience with all major implant systems through high-volume revision practice. Complex Reconstruction: Post-traumatic and post-oncologic reconstruction. Causation, apportionment, and future surgical cost projection. Medical malpractice, personal injury, and workers' compensation. CLINICAL CREDENTIALS Board Certified — American Board of Orthopaedic Surgery Fellow — American Academy of Orthopaedic Surgeons (FAAOS) Fellowship — Orthopaedic Oncology, MD Anderson Cancer Center Residency — Orthopaedic Surgery, UT Southwestern / Parkland Memorial Hospital Medical School — UT Southwestern Medical Center D Magazine Best Doctors in Dallas — Orthopaedic Surgery (2009–Present) Texas Monthly SuperDoctors (2009–Present) Dr. Gilbert is known for fast turnaround on record reviews, direct communication, honest opinions, and genuine accessibility throughout the engagement. He works with both plaintiff and defense counsel. Initial case consultations are provided at no charge.