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Knee – Lateral (Basic)
Published in A Stewart Whitley, Charles Sloane, Gail Jefferson, Ken Holmes, Craig Anderson, Clark's Pocket Handbook for Radiographers, 2016
A Stewart Whitley, Charles Sloane, Gail Jefferson, Ken Holmes, Craig Anderson
A small cranial tube angulation of 5–7 degrees can help superimpose the femoral condyles.Over-rotation = fibula is projected too posteriorly.Under-rotation = fibular head is hidden behind tibia.Identification of the adductor tubercle indicates the medial femoral condyle and can assist the radiographer to correct positioning faults.This projection may also be acquired in the weight-bearing position against a vertical detector.
The association of the localized pain sensitivity in the residual limb and prosthesis use in male veterans with transtibial amputation
Published in Assistive Technology, 2023
Kamiar Ghoseiri, Mohammad Yusuf Rastkhadiv, Mostafa Allami, Phillip Page, Lars L. Andersen, Duane C. Button
Nineteen male veterans with traumatic war-related transtibial amputation and a mean±SD age of 49.5 ± 10.7 years were enrolled in this study. Participants were sampled from the database of the Veterans and Martyrs Affair Foundation (VMAF), a national secured database of all Iranian military and civilian casualties from the Iran–Iraq conflict (Esfandiari et al., 2018), among veterans with unilateral transtibial amputation who were living in the Hamadan province of Iran. Veterans were called by phone and after describing the aim, process, and benefits of the study, were invited to participate. Of the 28 volunteers who responded, 19 met the inclusion criteria. The inclusion criteria were intact skin of the residual limb as confirmed by examination, nearly 25 cm length of the residual limb as measured from adductor tubercle of femur, and active community ambulator with pain-free prosthesis use. The exclusion criteria were the existence of mental disorders (n = 8), addictions (n = 1), and neurological deficits. All aspects of the study were consistent with the declaration of Helsinki and were approved by the research ethics committee of the VMAF, approved number: IR.ISAAR.REC.1398.016. All participants gave written consent to participate in the study.
Statistical shape modelling reveals differences in hamstring morphology between professional rugby players and sprinters
Published in Journal of Sports Sciences, 2023
Ashlee M.T. Sutherland, Joseph T. Lynch, Benjamin G. Serpell, Mark R. Pickering, Phil Newman, Diana M. Perriman, Claire Kenneally-Dabrowski
Bilateral hamstring images were acquired using a Skyra 3-Tesla MRI scanner (Siemens Healthcare, Erlangen, Germany) using a T1 Dixon Vibe sequence (TE 2.46, TR 5.73, FOV 500 × 500, slice thickness 1.6 mm, gap 0.32 mm). Participants lay supine within the scanner with their feet taped together and a small pillow under their knees. A tourniquet secured the ankles to reduce the likelihood of motion induced artefact. The images were transformed from coronal to axial slices with the voxel dimensions: 1.6 mm antero-posterior; 1.5625 mm supero-inferior; and 1.5625 mm medio-lateral. The images of the left legs were mirrored to match the right legs. Each hamstring muscle (biceps femoris long head, BFLH; biceps femoris short head, BFSH; semitendinosus, ST; semimembranosus, SM) was manually segmented by a participant-blinded examiner using LegAnnotate© software written in MATLAB® (MathWorks Inc Massachusetts, USA) (Figure 1). Proximal- and distal-bony landmarks were identified as cut-off points to standardize shape measurements. The proximal landmark was identified from the axial slice which included the most inferior point of the ischial tuberosity and distally the axial slice which included the adductor tubercle of the femur.
Combined manual and automatic landmark detection for enhanced surface registration of anatomical structures: an extensive parameter study for femur and clavicle
Published in Computer Methods in Biomechanics and Biomedical Engineering: Imaging & Visualization, 2020
Sanne Vancleef, Yannick Carette, Hans Vanhove, Joost R. Duflou, Ilse Jonkers, Jos Vander Sloten
A better initial match between source and target leads to better correspondence quality, as is shown by the better correspondence quality using only automatic point detection in the second target femur. In the target femur used for the parameter study, the adductor tubercle and MCP showed good agreement with automatic landmark detection. Correspondence quality of the other landmarks improved by adding manually identified corresponding points. This can be due to the position of the lesser trochanter in source and target mesh. As described earlier, the centre of the lesser trochanter is located at 17.5% of the length in the source and at 20.1% in the target. This makes the identification of true correspondences harder. In the clavicle, the location of the conoid tubercle in the source and target mesh is similar and therefore the correspondence quality is better.