Optimisation of fixation methods For Vancouver Type B2 And B3 periprosthetic femoral fracture treatment

摘要: Periprosthetic femoral fractures (PFF) are a complication associated with total hip arthroplasty patients that can be both traumatic and challenging to treat. With the increasing age of population prevalence replacement surgery periprosthetic expected occur more frequently in future. The most common type PFF is Vancouver Type B fracture occurs near tip original prosthesis. These complicated further by loosening primary stem (Type B2 fractures) poor bone stock B3 fractures). Clinical failures unclear optimal treatment recommendations for many suggest investigation required. This study mechanically tested experimental specimens representing cemented long revision at range loading orientations evaluate their biomechanical response. From these axial stiffness, medial strain, distal lateral relative movement were recorded under semi-physiological loading. results also used validate computational, finite element (FE), models treatment. computational shown achieve reasonable agreement data, such they could investigate wider clinical scenarios. FE then compare effects different cement mantle geometries, location, bridging distance, angle, length osteoporosis. The specific location angle appeared have an effect on bending response femur Long however seemed suitable achieving stability around unstable it may possible counter-act increased risk fixation failure osteoporotic selecting longer distance.