Endoprosthetic replacement following limb-sparing resection for bone sarcoma

Area of Science:

• Orthopedic oncology
• Biomaterials science
• Surgical reconstruction

Background:

• Prosthetic replacements are crucial for reconstructing bone defects after surgical resection of bone sarcomas.
• Outcomes vary significantly based on anatomical site, prosthesis design, and fixation methods.

Purpose of the Study:

• To evaluate the success, complications, and functional outcomes of prosthetic replacements in bone sarcoma reconstruction.
• To identify factors influencing the longevity and success of these reconstructions.

Main Methods:

• Review of outcomes for various prosthetic replacements used in bone sarcoma treatment.
• Analysis of factors such as anatomical location, prosthesis type (e.g., cemented rotating-hinge, expandable), and fixation.
• Assessment of complication rates (aseptic loosening, bone resorption, infection) and revision success.

Main Results:

• Distal femoral replacement, especially with cemented rotating-hinge prostheses, demonstrates reproducible success.
• Expandable prostheses are vital for skeletally immature patients, offering an alternative to limb-sparing surgery.
• Aseptic loosening and bone resorption are common but often amenable to revision surgery.
• Improved soft tissue coverage has reduced infection rates.

Conclusions:

• Distal femoral prosthetic replacement is a reliable reconstructive option.
• Advances in prosthesis design and surgical techniques are improving outcomes and reducing complications.
• Ongoing developments in bone bridging and tendon attachment aim to further enhance functional recovery.