نتایج جستجو برای: patellofemoral congruence angle pfca

تعداد نتایج: 141407  

Journal: :Clinical biomechanics 2011
John J Elias Marcus S Kirkpatrick Archana Saranathan Saandeep Mani Laura G Smith Miho J Tanaka

BACKGROUND Hamstrings loading has previously been shown to increase tibiofemoral posterior translation and external rotation, which could contribute to patellofemoral malalignment and elevated patellofemoral pressures. The current study characterizes the influence of forces applied by the hamstrings on patellofemoral kinematics and the pressure applied to patellofemoral cartilage. METHODS Ten...

2010
Alessandra C. S. Ribeiro Débora B. Grossi Bernd Foerster Cecília Candolo Vanessa Monteiro-Pedro

Objectives: To analyze the electrical activity of the vastus medialis obliquus (VMO), vastus lateralis longus (VLL) and vastus lateralis obliquus (VLO) muscles of individuals with patellofemoral pain syndrome (PFPS) during maximum voluntary isometric contraction (MVIC) of lower leg extension with the knee at 30°; to assess pain using a visual analogue scale (VAS); and to assess patellar positio...

Journal: :Revista brasileira de fisioterapia (Sao Carlos (Sao Paulo, Brazil)) 2010
Alessandra de Castro Souza Ribeiro Débora B Grossi Bernd Foerster Cecília Candolo Vanessa Monteiro-Pedro

OBJECTIVES To analyze the electrical activity of the vastus medialis obliquus (VMO), vastus lateralis longus (VLL) and vastus lateralis obliquus (VLO) muscles of individuals with patellofemoral pain syndrome (PFPS) during maximum voluntary isometric contraction (MVIC) of lower leg extension with the knee at 30 degrees; to assess pain using a visual analogue scale (VAS); and to assess patellar p...

2015
Tiago Amaral Rebouças Moreira Marco Kawamura Demange Riccardo Gomes Gobbi Zan Mustacchi José Ricardo Pécora Luis Eduardo Passarelli Tírico Gilberto Luis Camanho

OBJECTIVE To analyze occurrences of trochlear dysplasia in patients with Down syndrome in the presence and absence of femoropatellar instability. METHODS Eleven knees with stable patellae and thirteen with unstable patellae in patients with Down syndrome were compared. Radiographs were produced to evaluate patellar height, trochlear angle and femoropatellar congruence angle. RESULTS The pre...

2017
Jeong-Il Kang Joon-Su Park Hyun Choi Dae-Keun Jeong Hye-Min Kwon Young-Jun Moon

[Purpose] For preventing the patellofemoral pain syndrome, this study aims to suggest a proper squat method, which presents selective muscle activity of Vastus Medialis Oblique and muscle activity ratios of Vastus Medialis Oblique/Vastus Lateralis by applying squat that is a representative weight bearing exercise method in various ways depending on the surface conditions and knee bending angles...

2016
Edward Laugharne Navi Bali Sanjay Purushothamdas Faris Almallah Rik Kundra

Purpose The purpose of this study was to investigate the impact of varying knee flexion and quadriceps activity on patellofemoral indices measured on magnetic resonance imaging (MRI). Materials and Methods MRI of the knee was performed in 20 patients for indications other than patellar or patellofemoral pathology. Axial and sagittal sequences were performed in full extension of the knee with ...

2015
Tae-Seong Kim Hee-June Kim In-Hoo Ra Hee-Soo Kyung

BACKGROUND Several tendon graft and fixation methods have been introduced in medial patellofemoral ligament (MPFL) reconstruction for recurrent patellar dislocation. The purpose of this study was to evaluate the results of MPFL reconstruction using a gracilis autograft fixation without bone tunnel in patients with recurrent patellar instability. METHODS Nine patients (four males and five fema...

2016
Erica J. Moore Stanley E. Kim Scott A. Banks Antonio Pozzi Jason D. Coggeshall Stephen C. Jones

BACKGROUND Patellar abnormalities are a common cause of pain and lameness in dogs; however, in vivo the relative motion between the femur and patella in dogs is not well described. The objective of this study was to define normal in vivo sagittal plane patellofemoral kinematics in three axes of motion using non-invasive methods. We hypothesized patellofemoral alignment in the sagittal plane wou...

2014
Ohjeoung Kwon Mijung Yun Wanhee Lee

[Purpose] The purpose of this study was to evaluate the correlation between intrinsic patellofemoral pain syndrome (PFPS) in young adults and lower extremity biomechanics. [Subjects] This experiment was carried out with sixty (24 men and 32 women), who are normal university students as subjects. [Methods] All subjects underwent 3 clinical evaluations. For distinguishing the intrinsic PFPS from ...

Journal: :The Journal of orthopaedic and sports physical therapy 2002
David A Wallace George J Salem Ruben Salinas Christopher M Powers

STUDY DESIGN Single-group repeated measures design. OBJECTIVE To quantify patellofemoral joint reaction forces and stress while squatting with and without an external load. BACKGROUND Although squatting exercises in the rehabilitation setting are often executed to a relatively shallow depth in order to avoid the higher joint forces associated with increased knee flexion, objective criteria ...

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