In Vivo Ultrasound Measurement of Posterior Femoral Glide During Hip Joint Mobilization in Healthy College Students

Change in muscle thickness during exercise to stabilize the hip joint against a load in the ventral direction of the femoral head

“…Although the hip joint is structurally stable, it has movements that are accessory physiologically. This has been confirmed by cadaveric study and ultrasonography4, 5 ) . It is reported that the range of accessory movements of the hip joint vary with individual greatly.…”

“…It is reported that the range of accessory movements of the hip joint vary with individual greatly. Studies on healthy adults report that accessory movements of the hip joint are about 2 mm long on average5 ) . The femoral head glides to the dorsal direction during hip flexion and moves in the ventral direction during extension as a movement that is accessory physiologically6 ) .…”

“…The femoral head glides to the dorsal direction during hip flexion and moves in the ventral direction during extension as a movement that is accessory physiologically6 ) . The treatment to improve the decreased accessory movements for wider range of motion is known as joint mobilization5 ) . In recent years, however, microinstability means not head position abnormalities hardly noticeable like femoral head position abnormality but the state in which accessory movement occurs excessively7 ) .…”

Ultrasound measurement of the effects of high, medium and low hip long-axis distraction mobilization forces on the joint space width and its correlation with the joint strain

“…During LADM, four images corresponding to the time of measurement (baseline, low-force LADM, medium-force LADM and high-force LADM) were recorded. On each image, the linear distance between the most superior point of the acetabular rim and the most superior point of the femoral head, as they appeared on the US display (Loubert et al, 2013), was defined as the JSM (Figure 1). The separation was determined by subtracting the baseline JSW from the JSM measured during each magnitude of LADM force.…”

“…Hip ultrasound (US) is indicated for the evaluation of several clinical conditions involving the joint, soft tissues, and is an effective guidance for interventions (Klauser et al, 2012;Tagliafico et al, 2017). US imaging has been demonstrated to be a reliable and valid measurement of inferior Talbott, 2018, 2016) and posterior glenohumeral translation (Talbott and Witt, 2016) and posterior femoral glide (Loubert et al, 2013) during joint mobilizations. However, there is a lack of evidence on the reliability of US to measure the increase of hip JSW during LADM.…”