Long-term Outcomes of Cranioplasty: Titanium Mesh Is Not a Long-term Solution in High-risk Patients

Background Titanium mesh is a popular material for cranioplasty. However, long-term outcomes of these reconstructions remain unknown. We aimed to compare long-term outcomes between patients undergoing both (1) skull reconstruction with titanium mesh and other commonly used cranioplasty materials and (2) scalp reconstructions with locoregional flaps and free tissue transfers. Methods A retrospective review of patients treated with 466 cranioplasties (401 patients) between 2002 and 2014 was performed. Results Materials used for reconstructions included nontitanium alloplast (52.0%), titanium mesh (38%), and autologous bone (10%). Median cranial defect size was 58.4 cm2. Eighty-three reconstructions (18%) included full-thickness scalp defect with a median area of 155.4 cm2. Median follow-up was 3.9 years. Retention rate for isolated cranioplasty was 90%, 89.9%, and 77.1% for titanium mesh, nontitanium alloplast, and autologous bone, respectively (P > 0.05). In composite defect cases, retention rate for autologous bone was comparable, 81.8% (P > 0.05), whereas for titanium mesh and nontitanium alloplast it was significantly lower, 46.8% and 72.0%, respectively (P

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