Surgical technique of minor revision of a transcutaneous osseointegration prosthetic system (TOPS) with implant retention.

Objective: Transcutaneous osseointegration prosthetic systems (TOPS) offer a stable skeletal attachment for artificial limbs post-extremity amputation, serving as an alternative to socket attachment. Press-fit osseointegration implants (OI) utilized in TOPS consistently enhance quality of life and mobility for amputees, particularly those experiencing socket-related issues. Despite notable benefits, late complications such as infection and implant loosening pose challenges unique to TOPS due to their percutaneous nature.

Revision of Press-Fit Bone-Anchored Prosthesis After Implant Failure.

Background: The present video article describes the revision of a bone-anchored prosthesis in patients who received an osseointegration implant after transfemoral amputation. Clinical follow-up studies have shown that approximately 5% of all patients who receive press-fit cobalt-chromium alloy femoral implants experience failure of the intramedullary stem component as a result of septic loosening or stem breakage. For stem breakage, stem diameter and the occurrence of infectious events were identified as risk factors.