scholarly journals Dose atrophy of vastus medialis obliquus and vastus lateralis exist in patients with patellofemoral pain syndrome

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Conglei Dong ◽  
Ming Li ◽  
Kuo Hao ◽  
Chao Zhao ◽  
Kang Piao ◽  
...  
Keyword(s):  
Vastus Lateralis ◽  
Pain Syndrome ◽  
Patellofemoral Pain Syndrome ◽  
Patellofemoral Pain ◽  
Control Group ◽  
Vastus Lateralis Muscle ◽  
Vastus Medialis ◽  
Muscle Area ◽  
Vastus Medialis Obliquus ◽  
Lateralis Muscle

Abstract Background Whether vastus medialis obliquus atrophy exists in patients with patellofemoral pain syndrome and whether the amount of atrophy differs between the vastus medialis obliquus and vastus lateralis muscles remain unknown. Materials From June 2016 to March 2019, 61 patients with patellofemoral pain syndrome were retrospectively included in the study group, and an age-, sex-, and body mass index-matched cohort of 61 patients with normal knees was randomly selected as the control group. All enrolled subjects had undergone CT scans in the supine position. The cross-sectional areas of the vastus medialis obliquus and the vastus lateralis muscle in the sections 0, 5, 10, 15, and 20 mm above the upper pole of the patella were measured, and the vastus medialis obliquus/vastus lateralis muscle area ratio was evaluated. Results In the study group, the vastus medialis obliquus areas and the vastus lateralis muscle areas in the sections that were 0, 5, 10, 15, and 20 mm above the upper pole of the patella were significantly smaller than the respective areas in the control group (P < 0.05). The vastus medialis obliquus/vastus lateralis muscle area ratio was significantly smaller at the upper pole of the patella (the section 0 mm above the upper pole of the patella) than the corresponding ratio in the control group (P < 0.05). No significant difference was noted between the two groups in the sections 5, 10, 15, and 20 mm above the upper pole of the patella (P > 0.05). Conclusion In patients with patellofemoral pain syndrome, vastus medialis obliquus and vastus lateralis muscle atrophy existed in sections 0–20 mm above the upper pole of the patella, compared with normal controls, and atrophy of the vastus medialis obliquus was more evident than that of the vastus lateralis muscle at the upper pole of the patella. These findings support the rationale for the use of general quadriceps exercise combined with vastus medialis obliquus strengthening exercise as part of the rehabilitation programme for the patients with patellofemoral pain syndrome.

Differences in Sonographic Characteristics of the Vastus Medialis Obliquus between Patients with Patellofemoral Pain Syndrome and Healthy Adults

2009 ◽  
Vol 37 (9) ◽  
pp. 1743-1749 ◽  
Author(s):  
Mei-Hwa Jan ◽  
Da-Hon Lin ◽  
Jiu-Jenq Lin ◽  
Chien-Ho Janice Lin ◽  
Cheng-Kung Cheng ◽  
...  
Keyword(s):  
Pain Syndrome ◽  
Patellofemoral Pain Syndrome ◽  
Patellofemoral Pain ◽  
Healthy Adults ◽  
Control Group ◽  
Vastus Medialis ◽  
Healthy Controls ◽  
Vastus Medialis Obliquus ◽  
Fiber Angle ◽  
Significant Difference

Background There is controversy regarding the relationship between patellofemoral pain syndrome (PFPS) and insufficiency of the vastus medialis obliquus (VMO). The conventional clinical practice of VMO strengthening for PFPS has been challenged for lack of evidence. The purpose of this study was to observe the difference in sonographic findings of the VMO between patients with PFPS and healthy adults. Hypothesis The morphological characteristics of the VMO are different between patients with PFPS and healthy adults. Study Design Case-control study; Level of evidence, 3. Methods Fifty-four patients with PFPS and 54 age-, gender-, body height—, and body weight—matched healthy adults as controls were enrolled in the study to measure by sonography the insertion level, fiber angle, and volume of the VMO at its insertional portion to detect differences between patients with PFPS and healthy controls. Results The insertion level, fiber angle, and VMO volume were all significantly smaller in the PFPS group than in the control group (P < .05). Multivariate analysis of variance has revealed a Wilks λ value of .845 and an F value of 5.640 (P = .001). Conclusion There was a significant difference in the 3 VMO measures between patients with PFPS and the healthy controls. Individuals might be predisposed to PFPS by different VMO characteristics, including insertion level and fiber angle. The current study cannot determine whether the observed morphological differences were the results of atrophy in response to pain or if they represent dysplasia that was predisposed to pain development. The clinical manifestations of VMO characteristics should be thoroughly investigated in other populations. Clinical Relevance The function of the VMO is important to consider in the rehabilitation of patients with PFPS.

DRY NEEDLING VERSUS KINESIO TAPING ON MYOFASCIAL TRIGGER POINT IN THE VASTUS LATERALIS MUSCLE IN SUBJECT WITH PATELLOFEMORAL PAIN SYNDROME

2019 ◽  
Vol 22 (01n02) ◽  
pp. 1950005
Author(s):  
Hassan Shakeri ◽  
Manijeh Soleimanifar ◽  
Leila Nejad ◽  
Amir Massoud Arab
Keyword(s):  
Pain Intensity ◽  
Trigger Point ◽  
Vastus Lateralis ◽  
Pain Syndrome ◽  
Patellofemoral Pain Syndrome ◽  
Patellofemoral Pain ◽  
Vastus Lateralis Muscle ◽  
Myofascial Trigger Point ◽  
Dry Needling ◽  
Lateralis Muscle

Purpose and Hypothesis: Trigger points (TrP) is one of the most common causes of musculoskeletal disorders. Myofascial trigger point in vastus lateralis muscle has been reported high prevalently in subjects with patellofemoral pain syndrome. The purpose of this study was to investigate the effects of dry needling and kinesio tape on trigger point in vastus lateralis muscle. Randomized controlled trial designed to investigate the effect of Dry Needling (DN) and Kinesio Taping (KT) on pain intensity and knee disability after session’s treatment in individuals with trigger point (TrP) in Vastus Lateralis (VL) muscle. Methods: 30 subjects with TrP in the VL muscle participated in this study. Subjects were randomly assigned to a DN group ([Formula: see text]) or KT group ([Formula: see text]). Results: Statistical analysis (paired [Formula: see text]-test) revealed a significant improvement in VAS during activity and KOOS scores after three sessions treatment in both of groups compared with before treatment ([Formula: see text]). But PPT was not increased after one week treatment. VAS using an algometer was decreased only at DN group ([Formula: see text]). The results showed no significant changes in variables immediately after intervention. The ANCOVA revealed no significant differences between the DN and KT groups on the post-measurement VAS during activity, VAS using an algometer, PPT, KOOS scores ([Formula: see text]). Conclusion: DN and KT produce an improvement in pain intensity and knee disability and may be prescribed for PFPS subjects with TrP in VL muscle especially when pain relief is the goal of the treatment.

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