Triplate fixation: a new technique in limb-salvage surgery

Area of Science:

• Orthopedic Surgery
• Biomedical Engineering
• Oncology

Background:

• Massive endoprostheses with cemented intramedullary stems are common for limb salvage surgery in tumor patients.
• Aseptic loosening is a frequent cause of revision surgery, often complicated by poor bone quality.
• Re-insertion of intramedullary stems can be challenging and lead to recurrent loosening.

Purpose of the Study:

• To evaluate the efficacy of triplate fixation in challenging revision or joint-sparing tumor surgery.
• To assess the biomechanical integration and functional outcomes of the triplate technique.
• To present triplate fixation as a potential alternative to intramedullary stems in specific oncological cases.

Main Methods:

• A retrospective case series of 14 patients undergoing revision or joint-sparing tumor surgery using triplate fixation.
• Minimum follow-up of four years.
• Assessment of osseomechanical integration, functional recovery, and implant survival.

Main Results:

• The triplate design achieved good incorporation within the remodeled cortex, demonstrating osseomechanical integration.
• All 14 patients regained their pre-operative functional level within five months post-surgery.
• No cases of loosening or revision were reported during the follow-up period.

Conclusions:

• Triplate fixation provides a biomechanically sound and effective method for limb reconstruction in complex tumor cases.
• This technique may be advantageous over traditional intramedullary stems, especially in revision scenarios or when bone stock is limited.
• Triplate fixation facilitates early functional recovery and offers a durable solution for challenging orthopedic oncology procedures.