Three-dimension-printed custom-made prosthetic reconstructions: from revision surgery to oncologic reconstructions

Area of Science:

• Orthopedic Surgery
• Biomedical Engineering
• Musculoskeletal Oncology

Background:

• Increasing use of custom-made 3D-printed prostheses for severe bone defects.
• Need to evaluate feasibility and outcomes in oncologic and non-oncologic settings.

Purpose of the Study:

• Assess surgical reconstruction feasibility using 3D-printed prostheses.
• Evaluate functional results, complications, and short-term outcomes.

Main Methods:

• Prospective analysis of 13 patients (June 2016-January 2018).
• Diagnoses included primary bone tumors, metastases, and hip arthroplasty revisions.
• Functional outcomes assessed using MSTS score; complications categorized by Henderson et al.

Main Results:

• Mean follow-up of 13.7 months; 100% and 80% survival at 1 and 2 years.
• Seven complications in 5 patients (38.5%); 62% survival to complications at 2 years.
• Good to excellent functional outcomes (mean MSTS score 80.3%).

Conclusions:

• 3D-printed prostheses are a promising reconstructive technique for musculoskeletal oncology and revision surgery.
• Preliminary results are satisfactory, warranting further investigation.
• Long-term evaluation of design, fixation, and implant stability is necessary.