OBJECTIVE To investigate the relationship between the q-angle and anterior knee pain severity, functional capacity, dynamic knee valgus and hip abductor torque in women with patellofemoral pain syndrome (PFPS). METHODS This study included 22 women with PFPS. The q-angle was assessed using goniometry: the participants were positioned in dorsal decubitus with the knee and hip extended, and the ...

The purpose of this study was to correlate the trochlear shape and patellar tilt angle and lateral patellar displacement at rest and maximal voluntary isometric contraction (MVIC) exercises during open (OKC) and closed kinetic chain (CKC) in subjects with and without anterior knee pain. Subjects were all women, 20 who were clinically healthy and 19 diagnosed with anterior knee pain. All subject...

Torsional deformities of the femur and/or tibia often go unrecognized in adolescents and adults who present with anterior knee pain, and patellar maltracking or instability. While open and arthroscopic surgical techniques have evolved to address these problems, unrecognized torsion may compromise the outcomes of these procedures. We collected a group of 16 consecutive patients (23 knees), with ...

Patellar maltracking results in many patello-femoral joint (PFJ) disorders, usually source of anterior knee pain. In the intact knee, this maltracking is generally due to abnormalities in the PFJ interface, soft tissue tightening and lower limb rotations. In the replaced knee, PFJ maltracking is generally due to prosthesis component misalignments in both PFJ and tibio-femoral joint (TFJ), inacc...

BACKGROUND We were not aware of a well-validated patellofemoral joint-specific scoring system. We performed this study to develop and validate a scoring system (Samsung Medical Center [SMC] patellofemoral scoring system) suitable for the evaluation of patellofemoral joint status. METHODS We recruited 179 individuals consisting of a study group of 123 patients with anterior knee pain but witho...

Anterior knee pain, diagnosed as Patellofemoral Pain Syndrome (PFPS), is one of the most common musculoskeletal disorders [61]. It is of high socioeconomic relevance as it occurs most frequently in young and active patients. The rate is around 15-33% in active adult population and 21-45% of adolescents [36]. However, in spite of its high incidence and abundance of clinical and basic science res...

In the past, medial osteoarthritis (OA) knee with symptomatic patellofemoral (PF) arthritis has not been recommended for a unicompartmental knee arthroplasty (UKA). However, recent studies have reported that UKA has shown good results in patients with medial OA of the knee, including those with PF arthritis. The purpose of this study is to compare the results between patients with medial OA kne...