Periprosthetic Distal Femoral Fractures: Current Concepts and Management Strategies

Area of Science:

• Orthopedic surgery
• Biomedical engineering

Background:

• Periprosthetic distal femoral fractures pose significant management challenges.
• High morbidity and mortality rates are associated with these fractures.

Purpose of the Study:

• To discuss treatment options for periprosthetic distal femoral fractures.
• To present a surgical algorithm for effective management.

Main Methods:

• Utilized the Rorabeck and Taylor classification system for prosthesis status.
• Treatment decisions based on fracture pattern, location, bone quality, and prosthesis stability.
• Considered internal fixation, revision knee replacement, or distal femoral replacement.

Main Results:

• Stable prostheses managed with internal fixation (locking plates or intramedullary nail).
• Loose prostheses with good bone stock treated with revision knee replacement.
• Loose components with poor bone stock required distal femoral replacement.
• Osteoporosis management is integral to treatment.

Conclusions:

• Tailored treatment is essential for periprosthetic fractures after total knee arthroplasty (TKA).
• Factors include bone quality, prosthesis stability, fracture location, and patient specifics.
• A personalized strategy ensures optimal outcomes and implant survival.