Appraisal of surgical treatment of 47 cases of patellofemoral instability


Autoria(s): Albuquerque,Roberto Freire da Mota e; Pacheco,Alexandre Pagotto; Hernandez,Arnaldo José; Amatuzzi,Marco Martins; Pécora,José Ricardo; Kokron,Alexandre Estevão Vamos
Data(s)

01/06/2002

Resumo

INTRODUCTION: Patellofemoral instability is a common knee disease. Its etiology is complex and variable, with many components making different contributions in each individual, resulting in several distinct clinical presentations. Our goal was to analyze the results of surgical treatment in our hospital over a period of 10 years. PATIENTS AND METHODS: We analyzed 55 knees of 47 patients who underwent surgery for patellofemoral instability and were classified into 2 main groups: proximal realignment and combined proximal and distal realignment. Three other groups were analyzed according to the duration of preoperative symptoms: less than 1 year (group I); 1 to 10 years (group II); and more than 10 years (group III). RESULTS: There were 62% good results overall, with 78% good results in groups I and II. Group III had 81% bad results, showing that a late diagnosis of advanced disease results in a poor prognosis. In addition to late diagnosis, bad results were usually associated with incorrect diagnosis or choice of surgical technique. There was no significant difference between isolated proximal realignment and combined proximal and distal realignment in groups I or II, but in group III, the combined technique yielded better results. DISCUSSION: Our results indicate that patellofemoral instability should be addressed in its early stages. Patients with long-lasting symptoms or more severe disease seem to achieve better results with combined techniques. CONCLUSION: Proximal and distal realignments produce better results than isolated proximal realignment in patients with joint degeneration or with greater duration of disease. The realignment surgery does not produce good results in patients with advanced disease.

Formato

text/html

Identificador

http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0041-87812002000300004

Idioma(s)

en

Publicador

Faculdade de Medicina / Universidade de São Paulo - FM/USP

Fonte

Revista do Hospital das Clínicas v.57 n.3 2002

Palavras-Chave #Knee #Patella #Surgery
Tipo

journal article