title: Medial Patellofemoral Ligament Reconstruction: A Longitudinal Study Comparison of 2 Techniques with 2 and 5-Years Follow-Up.
abstract: BACKGROUND
  The purpose of this study was to compare the results of two popular surgical techniques for medial patellofemoral ligament MPFL reconstruction with a minimum of two-year follow-up.
  
  
  METHODS
  Fifty-eight patients with traumatic tear of the medial patellofemoral ligament were included in one of the two surgical groups. Group 1 MPFLs were reconstructed through graft endobutton fixation and Group 2 through graft anchor fixation into the patella. After two to five-year follow-up, patients were asked to answer knee function questionnaires (Fulkerson and Kujala) as well as the SF-36 life quality score.
  
  
  RESULTS
  There were no statistical difference among postoperative Kujala, Fulkerson, and SF-36 questionnaires scores between Groups 1 and 2. There were statistical significant differences favorable to patients in Group 1 with a shorter follow-up length (2-5 years) compared to those with a longer period of 5-10 years for both Kujala and Fulkerson scores and no difference for group 2.
  
  
  CONCLUSIONS
  Both medial patellofemoral ligament reconstruction techniques had similar results in a two to ten-year follow-up according to functions and life quality questionnaires. Furthermore, endobutton fixation for the patellar edge of the graft had better results in patients with 2 years of follow-up than those with 5 years. Gender was not significant for surgical results. Moreover, group 1 patients had higher number of complications.
authors.affiliation: Centro de Traumatologia do Esporte do Departamento de Ortopedia e Traumatologia da Escola Paulista de Medicina/ Universidade Federal de São Paulo, São Paulo, Brazil.
authors.forename: Diego C
authors.initials: DC
authors.lastname: Astur
authors.affiliation: Insituto Cohen, São Paulo, Brazil.
authors.forename: Gustavo B
authors.initials: GB
authors.lastname: Gouveia
authors.affiliation: Insituto Cohen, São Paulo, Brazil.
authors.forename: José H de Souza
authors.initials: JH
authors.lastname: Borges
authors.affiliation: Faculdade de Ciencias Médicas da Santa Casa de Misericórdia de São Paulo, São Paulo, Brazil.
authors.forename: Nelson
authors.initials: N
authors.lastname: Astur
authors.affiliation: Centro de Traumatologia do Esporte do Departamento de Ortopedia e Traumatologia da Escola Paulista de Medicina/ Universidade Federal de São Paulo, São Paulo, Brazil.
authors.forename: Gustavo G
authors.initials: GG
authors.lastname: Arliani
authors.affiliation: Faculdade de Ciencias Médicas da Santa Casa de Misericórdia de São Paulo, São Paulo, Brazil.
authors.forename: Camila C
authors.initials: CC
authors.lastname: Kaleka
authors.affiliation: Departamento de Ortopedia e Traumatologia da Escola Paulista de Medicina/ Universidade Federal de São Paulo, São Paulo, Brazil.
authors.forename: Moises
authors.initials: M
authors.lastname: Cohen
keywords: Ligament reconstruction; MPFL; medial patellofemoral ligament; surgical technique