Reconstruction of proximal humeral fractures without screws using a reinforced bone substitute

Multi-fragment fractures are still a challenge: current clinical practice relies on plates and screws. Treatment of the proximal humerus has intra-operative risk articular damage when inserting multiple Distal-varus collapse head is frequent complication in osteoporotic patients. The aim this biomechanical study was to investigate if an Innovative-cement-technique (the screws replaced by injection cement) provides same or better stability reconstructed compared Standard-technique (locking screws). A four-fragment fracture simulated twelve pairs humeri, with removal part cancellous bone simulate “eggshell” defect. One each pair repaired either plate, 2 cortical 6 locking screws), (injection partially-resorbable reinforced substitute consisting PMMA additivated 26% beta-TCP). Cement performed both lab under fluoroscopic monitoring. specimens were tested failure cyclic force increasing amplitude. withstood 3.57 times larger than contralateral Standard reconstructions before started. maximum final for 3.56 Standard-technique. These differences statistically significant. Innovative-cement-technique, based substitute, demonstrated properties findings, along advantage avoiding possible complications associated screws, may help safer more effective treatment case multi-fragment humeral fractures.