RESEARCH ARTICLE


Medial Patellofemoral Ligament Reconstruction: A Longitudinal Study Comparison of 2 Techniques with 2 and 5-Years Follow-Up



Diego C Astur*, 1, Gustavo B Gouveia 2, José H. de Souza Borges 2, Nelson Astur 3, Gustavo G Arliani 1, Camila C Kaleka 3, Moises Cohen 4
1 Centro de Traumatologia do Esporte do Departamento de Ortopedia e Traumatologia da Escola Paulista de Medicina/ Universidade Federal de São Paulo, São Paulo, Brazil
2 Insituto Cohen, São Paulo, Brazil
3 Faculdade de Ciencias Médicas da Santa Casa de Misericórdia de São Paulo, São Paulo, Brazil
4 Departamento de Ortopedia e Traumatologia da Escola Paulista de Medicina/ Universidade Federal de São Paulo, São Paulo, Brazil


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© Astur et al.; Licensee Bentham Open.

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.

* Address correspondence to this author at the Centro de Traumatologia do Esporte do Departamento de Ortopedia e Traumatologia da Escola Paulista de Medicina/ Universidade Federal de São Paulo, Av Pacaembu 1024, Pacaembu 01234-000 São Paulo, SP, Brazil; Tel: 55 11 992139219; E-mail: mcastur@yahoo.com


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.

Conclusion :

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.

Keywords: Ligament reconstruction, medial patellofemoral ligament, MPFL, surgical technique.