title: Intrapelvic acetabulum surgery: does the positioning of the plate fixation play a role in the stability of the osteosynthesis?
abstract: OBJECTIVE
  This study aims to investigate whether positioning of the plate fixation plays a role in the stability of the osteosynthesis.
  
  
  METHODS
  We used finite element modelling to model an anterior pillar fracture and a T-type fracture of the acetabulum. Fracture fixation was carried out in three different variations: cranially positioned plate, medially positioned plate, and a combination of the two methods. In all cases, 3-3 screws were inserted on both ends of the plate to fix the fracture.
  
  
  RESULTS
  In both fractures, nearly the same amount of displacement was detected in the fracture gap using a cranially positioned or medially positioned plate, and the amount of displacement was not less when using both plates simultaneously.
  
  
  CONCLUSIONS
  The position of the plate fixation does not affect the stability of the osteosynthesis and in cases of simple fracture patterns, fixation using two plates does not provide more stability than one plate alone.
authors.affiliation: Trauma Centre, Páterfy Hospital, Fiumei str. 17, H-1081, Budapest, Hungary. sztrinkaig@gmail.com.
authors.forename: Gergely
authors.initials: G
authors.lastname: Sztrinkai
authors.forename: Tamás
authors.initials: T
authors.lastname: Bodzay
authors.forename: Benjámin
authors.initials: B
authors.lastname: Madarász
authors.forename: Gergely
authors.initials: G
authors.lastname: Zoltán
authors.forename: Tamás
authors.initials: T
authors.lastname: Gál
authors.forename: Károly
authors.initials: K
authors.lastname: Váradi
mesh_terms: D000077:Acetabulum / Q000293:injuries / Q000601:surgery; D001860:Bone Plates / Q000009:adverse effects*; D001863:Bone Screws; D020342:Finite Element Analysis; D005593:Fracture Fixation, Internal / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods; D050723:Fractures, Bone / Q000601:surgery; D006801:Humans; D011183:Postoperative Complications / Q000209:etiology / Q000517:prevention & control; D060489:Prosthesis Retention / Q000009:adverse effects / Q000379:methods