title: [Dynamic hip screw vs. percutaneous compression plate for trochanteric fractures].
abstract: OBJECTIVE
  To compare functional results, hemorrhage, wound infection, post-operative complications and implant stability in 31A1 and 31A2 fractures treated with percutaneous compression plate or dynamic hip screw.
  
  
  METHODS
  We made a cuasi-experimental, longitudinal, prospective and comparative study in a period from December 2004 to February 2005.
  
  
  METHODS
  System SPSS version 11.0, with t Student, Xi square and U Mann-Whitney, with alpha 0.05.
  
  
  RESULTS
  We included 26 patients with AO 31A1 and 31A2 fractures, 13 treated with percutaneous compression plate and 13 with dynamic hip screw. We did not found significant statistical difference in post-operative hospital stay; wound length, post-operative complications and consolidation time. There were no infection or other wound complications in either group. Time of surgery and hemorrhage were better in the percutaneous compression plate group (p < or = 0.05).
  
  
  CONCLUSIONS
  Percutaneous compression plate offers similar functional results compared to the dynamic hip screw, with advantages in hemorrhage during surgery and after surgery, less surgery time, with less need of transfusions post-operatively.
authors.affiliation: Hospital de Traumatología y Ortopedia Lomas Verdes IMSS, México. juan.lirar@imss.gob.mx
authors.forename: Juan Manuel Lira
authors.initials: JM
authors.lastname: Romero
authors.forename: Roberto Arenas
authors.initials: RA
authors.lastname: Díaz
authors.forename: Yuri Montero
authors.initials: YM
authors.lastname: Oropeza
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001860:Bone Plates; D001863:Bone Screws; D005260:Female; D006620:Hip Fractures / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011474:Prosthesis Design