RESUMO
OBJECTIVE: To evaluate the patellar height of volunteers with and without patellofemoral pain syndrome (PPS) during maximal voluntary isometric contraction (MVIC) in open kinetic chain (OKC) and closed kinetic chain (CKC) exercises. METHODS: Twenty healthy women, and nineteen women with patellofemoral pain syndrome were evaluated and subjected to nuclear magnetic resonance imaging during rest and MVIC in OKC and CKC at 15°, 30°, and 45° knee flexion. The patellar height was assessed by the K-Pacs program,using the Insall-Salvati index. For each exercise and knee position, patellar height was measured three times and the procedure was repeated after seven days. RESULTS: These data did not confirm our hypothesis that OKC exercises promote increased patellar height. CONCLUSION: Patellar height is not associated with PPS and suggests that CKC exercises lead an increased patellar height during knee position at 15º and 45º flexion for the PPS group. Level of Evidence II, Comparative Prospective. .
RESUMO
Objetivo: Como a síndrome da dor patelofemoral (SDPF) é uma desordem comum, caracterizada por etiologia multifatorial e o mais prevalente sintoma na SDPF é uma dor difusa e usualmente localizada na região retropatelar, entretanto, com sinais e sintomas que podem estar relacionados como pronação subtalar excessiva, torsão tibial externa, alterações no deslocamento patelar, amplitude de movimento do joelho dolorosa, dor nas bordas patelares, tensão muscular e alterações no ângulo quadricipital (ângulo Q). O objetivo deste trabalho foi verificar a frequência destes sinais e sintomas associados a um questionário de dor anterior no joelho. Métodos: Trinta e nove voluntárias sedentárias foram avaliadas, divididas em dois grupos, SDPF (19) e controle (20). Estas voluntárias foram avaliadas quanto aos sinais e sintomas supracitados além da avaliação da dor por meio de questionário. Resultados: os resultados demonstraram uma frequência elevada de relatos dolorosos em seis de treze questões, em relação ao grupo controle. Conclusão: De acordo com estes achados, concluímos que a avaliação funcional de indivíduos com SDFP deve ser constituída de um questionário de dor anterior no joelho e uma avaliação das características de sinais e sintomas para exame de todo o membro inferior estático e durante situações funcionais. Nível de Evidência II, Estudos Diagnósticos.
Objective: As patellofemoral pain syndrome (PFPS) is a common disorder characterized by multifactorial etiology and whose the most prevalent symptom is a diffuse pain, usually located on the retropatellar region, however, it also shows signs and symptoms that can be related as excessive subtalar pronation, external tibial torsion, patellar displacement alterations, painful range of motion of the knee, pain in the patellar borders, muscular tightness and changes in quadriceps angle (Q Angle), the objective of this work was to determine the frequency of these signs and symptoms associated to a previous knee pain questionnaire. Methods: thirty-nine sedentary female volunteers had been evaluated, divided in two groups, PFPS (19) and Control (20). These subjects were evaluated for signs and symptoms described above, in addition to pain assessment by questionnaire. Results: the results demonstrated a high frequency of pain in six of the thirteen questions in relation to the control group. Conclusion: according to these findings, we conclude that the functional evaluation of individuals with PFPS should consist of a previous knee pain questionnaire and an evaluation of the characteristic signs and symptoms for examination of the entire lower limb during static and functional situations. Level of Evidence II, Diagnostic Studies.