Avaliação eletromiográfica e ressonância magnética do joelho de indivíduos com síndrome da dor femoropatelar

Ribeiro, Alessandra de Castro Souza; Bevilaqua-Grossi, Débora; Foerster, Bernd; Candolo, Cecília; Monteiro-Pedro, Vanessa

doi:10.1590/s1413-35552010000300008

Cited by 14 publications

(7 citation statements)

References 31 publications

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“…Por outro lado, estes resultados diferem dos encontrados na literatura por RIBEIRO et al, (2010), MARIANI e CARUSO (1979) e BOUCHER et al, (1992) que também investigaram a relação da atividade EMG entre os músculos VMO e VL, ambos verificando uma diminuição na atividade do VMO no grupo com SDPF em relação ao VL. Entretanto, estes autores avaliaram os sujeitos com o joelho posicionado nos últimos 30° de extensão, enquanto a avaliação eletromiográfica realizada no presente estudo foi obtida com o joelho em 180° e 120°d e ângulo tíbio-femoral, ou seja, a 0° e 60° de flexão.…”

Section: Discussionunclassified

Avaliação Radiológica e Eletromiográfica na Síndrome da Dor Patelofemoral

Guireli¹,

Maciel²,

Ferreira³

et al. 2012

Rev. bras. ciênc. Saúde

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RESUMOObjetivo: este trabalho se propõe a investigar a atividade elétrica dos músculos Vasto medial oblíquo (VMO) e Vasto Lateral (VL) e o alinhamento da patela em indivíduos com a SDPF. Material e Métodos: procedeu-se com a avaliação física e eletromiográfica de 20 pacientes portadores e 8 sedentários não portadores da síndrome. Utilizou-se o aparelho de biofeedback eletromiográfico com dois canais, um no músculo VMO e outro no VL. Realizaram-se três contrações isométricas em cada joelho nos ângulos de 120º e 180º, com duração de dez segundos e repouso de trinta segundos. Quanto à medida radiológica, o deslocamento da patela foi mensurado através de exame radiológico pelo Método Bilateral de Merchant. Resultados: Não houve diferença significativa na relação VMO/VL tanto para os sujeitos clinicamente saudáveis quanto para pessoas com a SDPF, nos diferentes ângulos de contração. A análise radiológica revelou valores menores que os valores médios sugeridos na literatura para o Ângulo do Sulco (AS), o Ângulo de Congruência (AC) e o Ângulo de Inclinação Patelar (AIP). Conclusão: Nas condições experimentais realizadas, verificou-se que sujeitos clinicamente normais e com SDPF apresentaram relação VMO/VL similar para contração isométrica nos ângulos de 120° e 180°. A avaliação radiológica realizada para este trabalho apresentou resultados diferentes dos encontrados na literatura. DESCRITORESSíndrome da Dor Patelofemoral. Biofeedback. Eletromiografia. ABSTRACTObjective: This study aims to investigate the electrical activity of the muscles vastus medialis oblique (VMO) and vastus lateralis (VL) and patellar alignment in subjects with PFPS. Methods: It was carried out a physical and electromyographic evaluation of 20 patients affected by the syndrome and 8 sedentary non-affected ones. Electromyography was performed using a biofeedback device with two channels, one in the VMO and another in the VL. There were three isometric contractions in each knee at angles of 120º and 180º, with duration of ten seconds and rest for thirty seconds. The lateralization of the patella was measured by X-rays by the Method of Bilateral Merchant. Results: There was no significant difference in the VMO / VL for both clinically healthy subjects and for people with PFPS at the different angles of contraction. The radiological analysis showed lower values than the mean values suggested in the literature for the Angle of the Sulcus, Angle of Congruence and Angle of Patellar Inclination. Conclusion: According to the experimental conditions, it was found that healthy subjects and those with PFPS showed a relationship VMO / VL similar regarding isometric contractions at angles of 120° and 180°. The radiographic evaluation in this study showed results different from those of the literature. DESCRIPTORS

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Section: Discussionunclassified

Avaliação Radiológica e Eletromiográfica na Síndrome da Dor Patelofemoral

Guireli¹,

Maciel²,

Ferreira³

et al. 2012

Rev. bras. ciênc. Saúde

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“…Stensdotter et al 23 reported that an exercise of isometric knee extension at 30° yields greater activation of the VM and Ribeiro et al 24 reassures this finding. The study of Santos et al…”

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confidence: 90%

“…"a" represents significant difference of AG and "b" represents significant difference of AGAD (p ≤ 0.05). The extension exercise at 30° is also a guideline for rehabilitation and prevention of PFPS by Ribeiro et al 24 for yielding considerable activation of VM. Gramani-Say et al 21 agree by suggesting that the VM function in the dynamic stabilization of the knee joint is more effective in flexion angles from 0° to 30°.…”

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confidence: 99%

“…Some studies performed this comparison demonstrating that, along an exercise, a greater activation of VL as compared to VM may occur, causing suspicions on the use of such exercises for patients with PFPS, once it would increase the preexisting muscle imbalance. 18,20,24,25,28,34 Another possible limitation is the sample of healthy subjects, once patients with PFPS could present different results. Some studies suggest that PFPS patients may bear imbalances between the quadriceps muscles, promoting the VM to present less activation.…”

mentioning

confidence: 99%

“…Some studies suggest that PFPS patients may bear imbalances between the quadriceps muscles, promoting the VM to present less activation. 24,25,28,34 Nevertheless, there are studies which compared these exercises in healthy subjects and PFPS patients, finding no significant differences in their results. 15,16,18 A substantial aspect of the present study is the comparison of four maximal isometric exercise, which enhance the analysis and the interpretation of the collected data.…”

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confidence: 99%

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Activation level of vastus medialis muscle in different rehabilitation exercises

Birck¹,

Zaleski

Franke³

et al. 2016

Acta Fisiátrica

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Unilateral anterior knee pain is associated with increased patellar lateral position after stressed lateral translation

Leal

Andrade

Flores

et al. 2019

Knee Surg Sports Traumatol Arthrosc

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Purpose To objectively compare side‐to‐side patellar position and mobility in patients with idiopathic unilateral anterior knee pain (AKP) using a stress‐testing device concomitantly with magnetic resonance imaging. It is hypothesized that the painful knees present greater patellar mobility than the contralateral non‐painful knees. Methods From a total sample of 359 patients, 23 patients with idiopathic unilateral AKP (30.9 years, 23.4 kg/m2, 43% males) were included within the present study. Both knees of all the patients were examined by conventional imaging, including the measurement of trochlear sulcus angle, Caton‐Deschamps index, tibial tuberosity to trochlear groove distance, patellar tilt angle and patellar subluxation (both at rest and upon quadriceps contraction). Additionally, the same patients underwent stress testing (Porto Patella Testing Device); these measurements were taken with the patella at rest, after lateral patellar translation and after lateral patellar tilt. Clinical and functional outcomes were obtained using physical examination and the Kujala and Lysholm scores. Results Painful knees showed statistically significant higher patellar lateral position after stressed lateral translation than non‐painful knees (p = 0.028), 9.8 ± 3.6 mm and 7.1 ± 6.3 mm, respectively. The adjusted multivariate logistic model identified the patellar position after lateral displacement to be significantly associated with AKP (OR = 1.165) and the model (AUC = 0.807, p < 0.001) showed reasonable sensitivity (67%) and specificity (73%). Conclusion Patients with idiopathic unilateral AKP with morphologically equivalent knees showed statistically significant increased patellar lateral position after stressed lateral displacement in their painful knee. The greater lateral patellar mobility quantified by the PPTD testing brings more objectivity to the diagnosis. Level of evidence II.

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Avaliação eletromiográfica e ressonância magnética do joelho de indivíduos com síndrome da dor femoropatelar

Cited by 14 publications

References 31 publications

Avaliação Radiológica e Eletromiográfica na Síndrome da Dor Patelofemoral

Avaliação Radiológica e Eletromiográfica na Síndrome da Dor Patelofemoral

Activation level of vastus medialis muscle in different rehabilitation exercises

Unilateral anterior knee pain is associated with increased patellar lateral position after stressed lateral translation

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