EVALUATION OF MAGNETOS PUTTY AS A STANDALONE BONE GRAFT FOR HINDFOOT FUSION: A RETROSPECTIVE STUDY

Background Autologous cancellous bone, the “gold standard” for bone grafting, is limited by donor site morbidity, restricted availability, and procedural complications. Synthetic bone graft substitutes, particularly calcium phosphate ceramics (CaPs) with submicron topography, offer a promising alternative due to their osteoconductive and osteoinductive properties. MagnetOs Putty, a synthetic CaP-based graft with advanced submicron surface topography, has demonstrated equivalence to autograft in preclinical and human clinical studies. This study evaluates the clinical performance of MagnetOs Putty as a standalone bone graft in hindfoot fusion Objectives This study aims to (1) evaluate the clinical and radiological outcomes of MagnetOs Putty in hindfoot fusion, (2) compare these outcomes to autograft, and (3) assess patient-reported outcomes, complications, and reoperation rates. Study Design and Methods A retrospective medical chart review identifiedof 72 patients undergoing hindfoot fusion that met the inclusion criteriawas conducted. Data was collected from Patients receiving either MagnetOS Putty (36) or were divided into two groups: 36 treated with MagnetOs Putty and 36 with autologous bone graft. Inclusion criteria required degenerative hindfoot disease, treatment with either graft type, and follow-up data availability. Primary outcomes included radiographic fusion assessed by independent, blinded radiological analysis. Secondary outcomes included changes in outcome scores, complication rates, and reoperation rates. Descriptive statistics and appropriate statistical tests will used to analyze the results. Results Data collection is ongoing Results are forthcoming and will describe fusion rates, clinical outcomes, and complication rates associated with MagnetOs Putty compared to autograft. Preliminary analysis suggests that MagnetOs Putty offers a viable alternative to autograft for hindfoot fusion. Conclusions This study aims to provide evidence supporting the use of MagnetOs Putty as a standalone bone graft in foot and ankle surgery, addressing limitations and avoiding complications associated with of traditional grafting materials. The findings could inform clinical decision-making and promote the adoption of advanced synthetic bone graft substitutes.