Active clinical trials for "Patellofemoral Pain Syndrome"

This study aims to research on the relationship between constitutional varus knee and patellofemoral pain. The standardized standing whole-lower-extremity radiographs, the knee lateral view and skyline view of the participants will be taken. The hip-knee-ankle angle will be obtained from the radiographs. According to the hip-knee-ankle angle, the knees will be labelled knee varus or knee nonvarus. The knee varus incidences of the two groups will be determined and compared.

Patellofemoral pain syndrome is one of the most common musculoskeletal disorders. It is defined as an anterior knee pain. Its origin is a conflict during patellar tracking, due to patellofemoral malalignment and soft tissue overload. A few recent studies seem to show a benefit of prefabricated feet orthoses in patellofemoral pain syndrome, alone or in association with rehabilitation. However, no one has analyzed the outcome of morpho-specific foot orthoses in a prospective randomized study. The purpose of this prospective randomized study is to compare clinical outcomes in daily living and in sports activities, between morpho-specific and placebo foot orthoses. Morpho-specific foot orthoses are designed according to the patient's morphotype. They are intended to correct structural defects of the hindfoot, midfoot and forefoot, in the aim to correct abnormal overload during patellofemoral tracking.

Quadriceps retraining, especially the vastus medialis oblique muscle strengthening, plays an important role in clinical management of patellofemoral pain syndrome. Vastus medialis oblique muscle roles as a dynamic stabilizer during the functional knee movement. It can generate a medial pulling force to patella against the lateral pulled by vastus lateralis. Thus it improves the patellofemoral joint compression force, reduces the knee pain, increases functional abilities, and patients' quality of life. Could vastus medialis oblique be isolation by way of specific exercise without or minimize the recruitment of vastus lateralis？ According to human anatomy, vastus medialis oblique muscle origin from hip adductor magnus tendon, thus if incorporate hip adduction with knee extension as a selective means of training needs more researches. However, literature search shows that there are only a lot of EMG studies, so we need further clinical research to prove the treatment effect of this kind of strategy. The purpose of the study is to investigate the treatment effects of hip adduction combine knee extension exercise in patients with patellofemoral pain syndrome. We use muscle morphology of quadriceps muscle, pain, and functional abilities as the main outcome measures. Besides, we will make further compare with traditional knee extension exercise. The first hypothesis of the study is that patients with patellofemoral pain syndrome will get improvement in muscle morphology of quadriceps muscle, pain, and functional abilities after hip adduction combine knee extension exercise training . The second hypothesis is that patients with patellofemoral pain syndrome who receive hip adduction combine knee extension exercise training will get more improvement in muscle morphology of quadriceps muscle, pain, and functional abilities than patients who receive traditional knee extension exercise training. 90 patients with patellofemoral pain syndrome who less than 50 years old will be included in this study, and randomly distributed to hip adduction combine knee extension exercise group, knee extension exercise group, and control group. Following 8 weeks exercise training by an experimental physical therapist, ultrasound measurement of muscle thickness and cross-sectional area of vastus medialis oblique muscle, vastus lateralis muscle, and rectus femoris muscle component of quadriceps, 10cm-VAS patellofemoral joint pain evaluation, including VAS-U, VAS-W, and VAS-activity, and Lysholm scale scores will be measured. A two-way mixed ANOVA will be used to compare the mean differences between theses three groups. The study is aimed to provide an clinical evidence for evidence-based practice of rehabilitation in patients with patellofemoral pain syndrome.

Patellofemoral pain syndrome (PFPS) is a multifactorial pathology characterized by diffuse retropatellar and peripatellar pain in the knee joint, exacerbated by overloading activities on the patellofemoral joint. However, this disease showed high degree of patients not responsive to therapeutic strategies. This condition occurred because several factors is related to disease such as: (1) proximal factors (involving trunk and hip), (2) local factors (surrounding and or within the patellofemoral joint) and (3) distal factors (involving ankle and foot). Thus, the identification of clinical subgroups based in anatomic changes (proximal, local and distal factors) is a recent strategy that could help in the therapeutic strategies focused on the etiology of the disease, improve responsiveness to treatment, clinical and functional benefits.

The overall aim of the study is to assess the reliability and validity of Autocad software to measure JPS in PFPS, especially: To assess the intra-tester and between day reliability of measurement of JPS using Autocad software. To assess the validity of these measurements against those found during an IKD.

The aim of this study is to investigate the association between tensiomyography parameters (from rectus femoris, vastus lateralis and vastus medialis) and functional abilities in runners with patellofemoral pain syndrome.

The aim of this research is to interpret and make Kujala Questionnaire adaptable culturally into Urdu to investigate its validity and reliability in Pakistani population among anterior knee pain or patello femoral knee pain. Also check its correlation with 36-Item Short Form Health Survey questionnaire, Lysholm Knee Scoring Scale and 2000 International Knee Documentation Committee Subjective Knee Evaluation Form.

Restoration of patellar thickness is pivotal during a total knee arthroplasty (TKA). Several studies showed there are differences in the knee measurements between Asian and Western population. This study aims to evaluate the patellar dimension and Bristol Index of patellar width to thickness (BIPWiT) using magnetic resonance imaging (MRI) in Asian population.

Anterior knee pain has been an enigmatic problem for orthopedic surgeons. Recent studies, as well as the clinical observation of the principle investigator have suggested that arthroscopic resection of the infrapatellar plica (IPP), a vestigial remnant from embryonic development of no known clinical or biological significance, may eliminate this pain. The mechanism whereby this pain is related to the IPP is unclear. This study will document the mechanical behavior of the IPP, its kinematics, as recorded on video among a group of subjects who are undergoing arthroscopy. Radiographic visualization of the observed behavior will be obtained by injection of contrast material, and then fluoroscopic recording of a standard series of motions. The plica will then be resected to avoid any possibility of residual symptoms related to its presence. Further fluoroscopy of the knee without plical attachment, will allow the kinematic behavior to be assessed. The procedure will then be terminated.

The study will investigate an association between ankle dorsiflexion and altered frontal knee kinematics during step down test in patients with PFPS.