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Genu Valgum
Published in Benjamin Joseph, Selvadurai Nayagam, Randall T Loder, Anjali Benjamin Daniel, Essential Paediatric Orthopaedic Decision Making, 2022
Christopher Prior, Nicholas Peterson, Selvadurai Nayagam
Under general anaesthesia with tourniquets, the distal femoral physis was identified and the level marked using fluoroscopy. A small medial longitudinal incision was made centred on the level previously marked. The vastus medialis muscle was identified and retracted anteriorly off the periosteum with care. Attention was paid to avoid injury to the saphenous vein and nerve, medial patellofemoral ligament, the physis and the perichondral ring as inadvertent dissection of the physis could cause permanent growth disturbance.
The knee
Published in Ashley W. Blom, David Warwick, Michael R. Whitehouse, Apley and Solomon’s System of Orthopaedics and Trauma, 2017
Andrew Price, Nick Bottomley, William Jackson
Exercises should be continued for at least 3 months, concentrating on strengthening the vastus medialis muscle. If recurrences are few and far between, conservative treatment may suffice; as the child grows older the patellar mechanism tends to stabilize. However, about 15% of children with patellar instability suffer repeated and distressing episodes of dislocation, and for these patients surgical reconstruction is indicated.
The Spleen(SP)
Published in Narda G. Robinson, Interactive Medical Acupuncture Anatomy, 2016
Vastus medialis muscle: Extends the leg at the knee joint. Dubbed the “buckling knee muscle” by Travell and Simons, the vastus medialis harbors trigger points that not only cause pain but also inhibit muscle function, leading to unexpected knee buckling.1
Patellofemoral cartilage stresses are most sensitive to variations in vastus medialis muscle forces
Published in Computer Methods in Biomechanics and Biomedical Engineering, 2019
Saikat Pal, Thor F. Besier, Garry E. Gold, Michael Fredericson, Scott L. Delp, Gary S. Beaupre
This study provides evidence that may be important for understanding the role of the vastus medialis muscle in the context of PF pain. The vastus medialis muscle has been studied extensively in the diagnosis and treatment of PF pain (Souza and Gross, 1991; Grabiner et al. 1994; Karst and Willett, 1995; Powers 2000; Cowan et al. 2001; 2002; Bennell et al. 2006; Ng et al. 2008; Bennell et al. 2010; Cavazzuti et al. 2010; Pal et al. 2011; Benjafield et al. 2015). Patients with PF pain have been reported to have a weakened or inhibited activation of the vastus medialis muscle, which is theorized to result in an imbalance in quadriceps muscle forces (Karst and Willett 1995). This imbalance in quadriceps muscle forces is theorized to cause patellar maltracking, leading to elevated PF stress and pain (Fulkerson and Shea 1990). Although there are several articles addressing the imbalance in quadriceps muscle forces in PF pain patients (Cavazzuti et al. 2010; Chen et al. 2012; Benjafield et al. 2015), the effects of this force imbalance on PF joint stress has remained unclear. Our study shows that out of all the quadriceps muscles, small variations in vastus medialis muscle forces have the greatest effect on PF stress, highlighting the importance of the vastus medialis muscle.
The effect of vitamin D2 supplementation on muscle strength in early postmenopausal women: a randomized, double-blind, placebo-controlled trial
Published in Climacteric, 2018
C. Suebthawinkul, K. Panyakhamlerd, P. Yotnuengnit, A. Suwan, N. Chaiyasit, N. Taechakraichana
The vastus medialis muscle is an extensor muscle located medially in the thigh and extending to the knee. It is a part of the quadriceps muscle groups. The muscle groups are used for postural control with the body’s own weight as a load. In this study, we focused on the vastus medialis muscle because it is the muscle that will show early signs of atrophic change in the process of muscle alteration. The gold standard of CSA muscle measurements is MRI. However, MRI is costly and often inaccessible36. A previous study reported that the measurement taken by ultrasound provided good to excellent levels of agreement when compared to MRI images of the same muscle, making it a viable option for clinical evaluation of the size of the vastus medialis muscle37. In this study, the CSA of the vastus medialis muscle showed an earlier sign of change when compared to the muscle mass (BIA), making it an alternative, more sensitive option for the detection and evaluation of muscle improvement. Moreover, the change in muscle CSA in this study is in accordance with the increase in muscle strength, suggesting that muscle CSA may correlate more with muscle strength38,39.