Eklem Hastalıkları ve Cerrahisi Does surgically fixation of pubic fracture increase the stability of the operated posterior pelvis? Pubis kırığının cerrahi tespiti ameliyat edilen arka pelvisin stabilitesini artırır mı?

Joint Diseases and Related Surgery Experimental Study / Deneysel Çalışma Anahtar sözcükler: Sonlu eleman analizi; pelvis halkası; pubis kırığı; pubis plağı; retrograde pubis vidası. Objectives: This study aims to investigate whether surgical treatment of pubic rami fractures increases the stability of the posterior pelvis. Material and methods: A finite element pelvic model with improved geometric and material characteristics was analyzed. By imitating a standing position, a type I Denis sacrum fracture and a unilateral pubis fracture, we measured the differences in tension and displacement. The posterior injury was treated with a direct plate synthesis or transsacral plate synthesis, while the pubis fracture was left without fixation or fixed with either a retrograde pubic screw or plate synthesis. Results: The operative fixation of pubic rami fractures decreased the movement in the fracture gap not only at the site of the pubis fracture, but also at the site of the fixed sacrum fracture. The plate synthesis provided greater stability of the anterior fracture than the retrograde screw. The tensions in the implants were below the allowed values. Conclusion: We concluded that surgically fixation of pubic fracture increases the stability of the operated posterior pelvis