Association of sagittal spinal alignment in the standing position with the masses and amounts of intramuscular non-contractile tissue of the trunk and lower extremity muscles in patients with Parkinson's disease
The results of this study suggested the association between a low lumbar lordosis angle in the standing position and low lumbar erector spinae and multifidus muscle thicknesses and between a high sacral anterior inclination angle in the standing position and low lumbar multifidus muscle thickness in patients with PD. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - December 23, 2022 Category: Orthopaedics Authors: Mitsuhiro Masaki, Maki Kasahara, Yukika Inagaki, Minori Yokota, Moeka Takeuchi Source Type: research

The impact of prolonged experimental neck pain on walking stability and gait kinematics - A parallel-group study
Walking while reading on a smartphone, but not mild neck muscle pain, caused changes in the gait kinematics compared to normal walking without neck pain. This finding suggests that movement alterations during walking are not an early feature of prolonged experimental neck pain. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - December 23, 2022 Category: Orthopaedics Authors: Morten Bilde Simonsen, Edith Elgueta Cancino, Priscila de Brito Silva, Line Bay S ørensen, Rogerio Pessoto Hirata, Steffan Wittrup McPhee Christensen Tags: Short communication Source Type: research

Is the rod necessary? Biomechanical comparison of static knee spacers during axial loading
While the spacer reinforcement or the sheer presence of a rod did not influence the axial loading capacity in this in vitro study, weightbearing should be discouraged to limit further bone erosion. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - December 22, 2022 Category: Orthopaedics Authors: Philipp Egenolf, Dorothee Wasseq, Max Joseph Scheyerer, Andreas Prescher, Kilian Wegmann, Lars Peter M üller, Peer Eysel, Christina Otto-Lambertz Source Type: research

The effects of force application on the compressive properties of femoral spongious bone
The end-cap method used here to prevent end artefacts showed variations consistent with the literature when compared to the direct method. Additionally it was shown that the way in which the force is applied to the specimen has a major influence on the failure progression behavior, which was characterized using the plateau stress. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - December 21, 2022 Category: Orthopaedics Authors: F. Metzner, B. Fischer, C.-E. Heyde, S. Schleifenbaum Source Type: research

The stress and strain pattern in the ligaments of the acromioclavicular joint using a quasi-static model
The coracoclavicular ligament complex demonstrated a high stress-strain concentration during simulated passive shoulder abduction. Additionally, it was shown that the acromioclavicular ligament plays an important role in joint restraint during passive horizontal adduction, changing the primary role with the trapezoid and conoid at different motion intervals. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - December 16, 2022 Category: Orthopaedics Authors: Ausberto Velasquez Garcia, Farid Salam é, Joaquin Mura Source Type: research