| Popis: |
Background: whether the vastus medialis obliquus (VMO) atrophy exists in patients with PFPS and whether the amount of atrophy differs between the VMO and vastus lateralis muscle (VLM) is still obscure. Materials and methods: From June 2016 to March 2019, 61 patients with PFPS were collected into the study group, and an age, sex, and body mass index (BMI) matched cohort of 61 patients with normal knees were randomly selected into the control group. All enrolled subjects had undergone computed Tomography (CT) scans in the supine position. The cross-sectional area of the VMO and VLM in the sections of 0, 5, 10, 15, 20 mm above the upper pole of the patella were measured, and VMO/VLM area ratio were evaluated as well. Results: In the study group and the control group, the VMO area in the section that 0, 5, 10, 15, 20 mm above the upper pole of the patella were 732.64±306.43 mm2 and 941.66±366.83 mm2 (PConclusion: In patients with PFPS, the VMO and VLM atrophy was existed in the section of 0-20 mm above the upper pole of the patella in comparison with normal people; and the atrophy of the VMO was more evident than that of the VLM in the section that 0-5 mm above the upper pole of the patella. These findings support the rationale for use of general quadriceps exercise combined with VMO strengthening exercise as part of rehabilitation program for patients with PFPS. |
