Serving plaintiff and defense counsel across the United States with objective, authoritative opinions in revision arthroplasty, prosthetic joint infection, orthopaedic oncology, and complex reconstruction.
Nathan F. Gilbert, MD, FAAOS
Dallas, Texas
Dr. Nathan Gilbert is a board certified orthopaedic surgeon who specializes in orthopaedic oncology, complex musculoskeletal reconstructive surgery, infection, joint replacement revision, and prosthetic joint infections. He maintains an extremely busy clinical practice in Dallas, Texas and performs about 750 surgeries annually.
Fellowship-trained at The University of Texas MD Anderson Cancer Center and educated at UT Southwestern Medical Center, Dr. Gilbert has spent more than 20 years building one of the most subspecialized orthopaedic practices in the United States.
He has served as Chief of Orthopaedic Surgery at two major Dallas-Fort Worth hospital systems and established orthopaedic oncology and complex reconstruction service lines at Baylor University Medical Center, Texas Health Presbyterian Dallas, and Parkland Memorial Hospital. He founded the orthopaedic oncology programs at Children's Medical Center Dallas and Cook Children's Medical Center. He holds academic appointment at Texas A&M University.
Through Apex Orthopaedic Oncology and Complex Reconstruction Consulting, he provides expert witness and forensic consulting services to plaintiff and defense counsel nationally — with opinions that are objective, thorough, and built to withstand rigorous cross-examination.
Dr. Gilbert accepts engagements from plaintiff and defense counsel in the following areas. His opinions are driven by the medicine — not by who retained him.
Failed hip, knee, and shoulder replacements. Causation, standard of care, implant failure analysis, and future care projection. Among the highest-volume revision practices in the United States at approximately 400 procedures per year.
Diagnosis, treatment selection, and standard of care in PJI across hip, knee, shoulder, elbow, and other joints. More than 200 cases per year including two-stage revision and DAIR. Institutional go-to surgeon for PJI at two major Dallas-Fort Worth hospital systems.
Post-operative wound infections, osteomyelitis, septic arthritis, infected fracture hardware, and soft tissue infections. Institutional authority on orthopaedic infection management across all major joint systems and procedures.
Delayed and missed diagnosis of primary and metastatic bone tumors. Standard of care in musculoskeletal oncology, limb salvage, and post-oncologic reconstruction. Fellowship trained at MD Anderson Cancer Center. Approximately 200 oncology cases per year.
Defective joint replacement components, metal-on-metal hip devices, polyethylene failure, and fixation device failures. Extensive clinical experience across the full range of hip, knee, and shoulder implant systems.
Post-traumatic and post-oncologic reconstruction. Causation analysis, apportionment, and future surgical cost projection. Medical malpractice standard of care in orthopaedic surgery, personal injury, and workers' compensation.
Attorneys who work with Dr. Gilbert consistently find him to be fast, honest, accessible, and easy to work with. He answers his phone, returns calls the same day, and delivers reports when he says he will.
Dr. Gilbert is operating this week on the same types of cases he reviews for attorneys. His opinions reflect current standards, current techniques, and current implant systems — not outdated practice from a career that ended years ago.
Very few surgeons in the United States hold active expertise in high-volume revision arthroplasty, prosthetic joint infection, and orthopaedic oncology simultaneously. Cases at the intersection of these fields require exactly this combination.
Reports written for legal audiences — not medical journals. Well-organized, clearly reasoned, and built to withstand rigorous cross-examination. He prepares thoroughly for every deposition and trial appearance.
Dr. Gilbert works with both plaintiff and defense counsel. His opinions are driven by what the medicine supports. He will tell you clearly and early if the medicine does not support your theory of the case — saving you time, money, and risk.
Getting a case reviewed is straightforward. Initial consultations are at no charge. Dr. Gilbert is known for fast turnaround, direct communication, and being genuinely accessible throughout the engagement — you will not be chasing him down.
Reach out by phone or email with a brief case description. No charge for the initial inquiry. Conflicts are checked promptly.
Retainer agreement sent within 24 hours. Forward records and imaging once received. No need to organize — send everything you have.
Thorough written opinion typically delivered within two to three weeks of receiving complete materials. Expedited review available.
Available for attorney consultation calls throughout the litigation process. Helps prepare for deposition and trial.
Available for video or in-person deposition and trial testimony nationally. Prepares thoroughly for every appearance.
A retainer is required prior to commencement of any record review. All fees billed against the retainer with invoices provided on completion.
Travel time for in-person appearances billed at standard hourly rate. Travel expenses billed at cost. Expedited review available at 25% premium. W-9 available upon request.
The best way to find out whether Dr. Gilbert is the right expert for your case is a brief conversation. Reach out by phone or email and he will respond promptly — typically within one business day.
There is no charge for an initial inquiry call, and conflicts are checked at no cost.