Movement asymmetry during low and high demand mobility tasks after Dysvascular Transtibial amputation
Movement pattern asymmetry is increased during step ascent compared to overground walking for adults with transtibial amputation. While the restoration of overground walking is the focus of post-amputation rehabilitation and prosthetic design, higher demand tasks should also be considered to maximize mobility for adults with transtibial amputation. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - July 7, 2020 Category: Orthopaedics Authors: Jesse C. Christensen, Paul W. Kline, Amanda M. Murray, Cory L. Christiansen Source Type: research

Progression of muscular co-activation and gait variability in children with Duchenne muscular dystrophy: A 2-year follow-up study
Our findings suggest that patients with Duchenne muscular dystrophy exhibit decline in functional capacity after 2  years from the baseline. Moreover, to cope with disease progression, patients try to maintain an effective gait by changing the balance dynamic strategies (i.e. increase in proximal muscle coactivation) during the course of disease. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - July 3, 2020 Category: Orthopaedics Authors: Martina Rinaldi, Maurizio Petrarca, Alberto Romano, Gessica Vasco, Carmen D'Anna, Daniele Bibbo, Maurizio Schmid, Enrico Castelli, Silvia Conforto Source Type: research

Trunk and foot acceleration variability during walking relates to fall history and clinical disability in persons with multiple sclerosis
The gait stability indices can potentially be used outside of a laboratory setting to measure walking characteristics related to fall history and disability level in people with multiple sclerosis. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - July 2, 2020 Category: Orthopaedics Authors: Jordan J. Craig, Adam P. Bruetsch, Sharon G. Lynch, Jessie M. Huisinga Source Type: research

Reactive balance responses to an unexpected slip perturbation in individuals with incomplete spinal cord injury
There are limitations in reactive balance control of individuals with incomplete spinal cord injury, which may be a reason for high frequency of falls in this population. Reactive balance assessment should be included as a component of routine balance assessment and fall avoidance strategies in this population. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - July 1, 2020 Category: Orthopaedics Authors: Tarun Arora, Kristin E. Musselman, Joel L. Lanovaz, Gary Linassi, Catherine Arnold, Stephan Milosavljevic, Alison Oates Source Type: research

Comparison of optimal screw configurations in two locking plate systems for proximal humerus fixation - a finite element analysis study
The posterior and calcar screws may be prioritized in plate-B. Compared to plate-A, the more distal positioning, less purchase in the posterior aspect and a smaller screw spread due to not fitting of the most distal calcar screw in most investigated subjects led to a significantly higher predicted failure risk for most plate-B configurations. The findings of the simulations study require clinical corroboration. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - June 26, 2020 Category: Orthopaedics Authors: Dominic Mischler, Satish Babu, Georg Osterhoff, Carlotta Pari, James Fletcher, Markus Windolf, Boyko Gueorguiev, Peter Varga Source Type: research

Ultrasound vibro-elastography for assessing mechanical properties of porcine reproductive tissues in an ex vivo model
Experimental data obtained in this study may be used as a reference to study in vivo surface wave speed or mechanical properties for porcine or human reproductive tissues. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - June 24, 2020 Category: Orthopaedics Authors: Boran Zhou, Juntao Shao, Cassandra K. Kisby, Xiaoming Zhang Tags: Short communication Source Type: research

Editorial for special issue “Cartilage biomechanics”
My interest in Cartilage Biomechanics blossomed 40  years ago during my PhD, where I used proteolytic enzymes derived from the synovial joint space to degrade critical components in samples of human articular cartilage, in order to examine the relationship between the structure and function of this important load-bearing tissue. Indeed, I am remin ded of my old PhD Supervisor, Dr. Geoffrey Kempson, who said to me after completing the project “once you start with the biomechanics of articular cartilage you will never be able to leave it.” Indeed, given that this histologically boring thin tissue is exposed to ...
Source: Clinical Biomechanics - June 23, 2020 Category: Orthopaedics Authors: Dan Bader, Ren é van Donkelaar Tags: Editorial Source Type: research

Editiorial Board
(Source: Clinical Biomechanics)
Source: Clinical Biomechanics - June 18, 2020 Category: Orthopaedics Source Type: research

Risk factors for developing heel ulcers for bedridden patients: A finite element study
In clinical practice, it is advised to avoid internal shearing of the calcaneus of patients, and it could be taken into consideration by medical experts and nurses that a more abducted foot position may reduce the strains in the heel. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - June 16, 2020 Category: Orthopaedics Authors: W.G.H. van Zwam, M.C. van Turnhout, C.W.J. Oomens Source Type: research

The influence of maximal and submaximal cyclic concentric and eccentric exercise on chondrocyte death and synovial fluid proteins in the rabbit knee
Chondrocytes are well protected in the intact joint and withstood maximal eccentric muscular loading, and maximal endurance loading. Synovial fluid protein content was changed after exercise, and these changes depended crucially on the type of loading. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - June 16, 2020 Category: Orthopaedics Authors: Nada Abughazaleh, Ziad Abusara, Roman Krawetz, Walter Herzog Source Type: research

Lunate loads following different osteotomies used to treat Kienb öck's disease: A 3D finite element analysis
We think the association of the radius Camembert osteotomy and ulna Sennwald's shortening osteotomy is the most effective procedure to propose in Kienb öck's disease. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - June 11, 2020 Category: Orthopaedics Authors: Emmanuel J. Camus, Anna Aimar, Luc Van Overstraeten, Fr édéric Schuind, Bernardo Innocenti Source Type: research

Three dimensional bone mineral density changes in the femur over 1  year in primary total hip arthroplasty patients
The bone loss occurred mostly at the proximal femur, which is in agreement with previously presented studies. By carrying out three dimensional analysis on the bone gain and loss on the femur, it is possible to identify the patients that are showing high degree of bone loss. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - June 11, 2020 Category: Orthopaedics Authors: Magnus Kjartan Gislason, Francesca Lupidio, Halld ór Jónsson, Luca Cristofolini, Luca Esposito, Paolo Bifulco, Massimiliano Fraldi, Paolo Gargiulo Source Type: research

Relationship between vertical ground reaction force and muscle strength while climbing stairs after total hip arthroplasty
At 6  months, climbing stairs depended on muscle strength in the hip extensors. Conversely, at 12 months, the functional recovery of knee extensors was important for transferring weight upward while climbing stairs. Therefore, to improve the climbing function of patients with THA, it is important to not only focus on the recovery of muscle strength in the hip extensors but also improve muscle strength in the knee extensors. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - June 10, 2020 Category: Orthopaedics Authors: Yasuaki Arima, Hiroshige Tateuchi, Kimihiko Mori, Masanori Wakida, Kwang-Ho Kim, Kimitaka Hase Tags: Lecture Source Type: research

Concentrated stress effects of contoured and non-contoured high Tibial osteotomy plates: A finite-element study
In the situations of a lower distraction angle or a large tibia-plate gap, the use of a plate bender or a lag screw is recommended in order to contour the plate for reducing the concentrated stress at the distal tibia-plate region. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - June 10, 2020 Category: Orthopaedics Authors: Pei-Wei Weng, Chen-Kun Liaw, Chia-Hsien Chen, Chu-An Luo, Chih-Hwa Chen, Yang-Hwei Tsuang, Shang-Chih Lin Source Type: research

Three-dimensional scapular morphology is associated with rotator cuff tears and alters the abduction moment arms of the supraspinatus
Numerous studies have reported an association between rotator cuff injury and two-dimensional measures of scapular morphology. However, the mechanical underpinnings explaining how these shape features affect glenohumeral joint function and lead to injury are poorly understood. We hypothesized that three-dimensional features of scapular morphology differentiate asymptomatic shoulders from those with rotator cuff tears, and that these features would alter the mechanical advantage of the supraspinatus. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - June 10, 2020 Category: Orthopaedics Authors: Erin C.S. Lee, Neil T. Roach, Allison Clouthier, Ryan T. Bicknell, Michael J. Bey, Nathan Young, Michael J. Rainbow Source Type: research

Dynamic trial fitting by an expanding trial cup does not jeopardize primary acetabular component stability
Trial fitting of the acetabular component in uncemented total hip replacement is traditionally done by trial cups. Since trial cups do not resemble the real press-fit obtained by the definitive cup, a dynamic trial inserter, called the X-pander ®, was developed to mimic the real amount of press-fit. However, the concern is raised of losing the initial press-fit by using the X-pander® due to pre-expansion of the acetabulum. The purpose of this study was to assess if there is a difference in primary stability between both methods. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - June 9, 2020 Category: Orthopaedics Authors: D. Hoornenborg, J. van Loon, S. de Waard, I.N. Sierevelt, K.T.M. Opdam, G.M.M.J. Kerkhoffs, D. Haverkamp Source Type: research

Effectiveness of cervical zero profile integrated cage with and without supplemental posterior Interfacet stabilization
Anterior integrated cages provides less stability than traditional cage-plate constructs while supplemental interfacet cages improve stabilization. Integrated cages provide more lordosis at caudal levels and increase neuroforaminal height more at cranial levels. After interfacet cages, posterior disc height and neuroforaminal height increased more at the caudal segments. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - June 9, 2020 Category: Orthopaedics Authors: Robert M. Havey, Kenneth R. Blank, Saeed Khayatzadeh, Muturi G. Muriuki, Suguna Pappu, Avinash G. Patwardhan Source Type: research

Hemodynamic effects of aortic valve and heart rate on coronary perfusion
This study supports the hypothesis of a hemodynamic mechanism in the aortic root that increases coronary flow during rest but reduces the coronary flow reserve in aortic stenosis and artificial valve cases. The results may provide valuable insights regarding valve design. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - June 8, 2020 Category: Orthopaedics Authors: Idit Avrahami, Barak Even Chen, Alex Liberzon Source Type: research

Biomechanical analysis of simultaneous distal and proximal radio-ulnar joint instability
Our ligament injury model induced simultaneous proximal and distal radio-ulnar joint instability without bony or interosseous membrane injury, probably induced by severe soft tissue injury. Proximal radio-ulnar joint instability may influence distal radio-ulnar joint instability from pivoting of the interosseous membrane. Our findings will help surgeons evaluate the magnitude of soft tissue injury and plan surgery for patients with simultaneous proximal and distal radio-ulnar joint instability. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - June 7, 2020 Category: Orthopaedics Authors: Naoki Hayami, Shohei Omokawa, Tsutomu Kira, Junya Hojo, Pasuk Mahakkanukrauh, Yasuhito Tanaka Source Type: research

In vivo performance of intraperitoneal onlay mesh after ventral hernia repair
The physiological movement of the human abdomen must be regarded as a very important factor in mesh deformation and should be considered in surgical practice to reduce the hernia recurrence rate and postoperative pain. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - June 6, 2020 Category: Orthopaedics Authors: Izabela Lubowiecka, Agnieszka Tomaszewska, Katarzyna Szepietowska, Czes ław Szymczak, Maciej Śmietański Source Type: research

Comparison of muscle activation levels and knee valgus between individuals with medial patellofemoral ligament reconstruction and healthy individuals during fatiguing step down task
Since the significant results were only observed in the fatiguing section of the test, endurance tests may provide more information about neuromuscular control of the individuals with history of medial patellofemoral ligament reconstruction. Future studies should investigate whether endurance exercises that target to improve vastus medialis obliquus and gluteus medius activity result in better clinical outcomes than conventional programs for individuals with medial patellofemoral ligament reconstruction. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - June 5, 2020 Category: Orthopaedics Authors: Gulcan Harput, Burak Ulusoy, Ramazan Akmese, Nevin Ergun Source Type: research

The performance of resurfacing implants for focal cartilage defects depends on the degenerative condition of the opposing cartilage
This study demonstrates that the opposing cartilage quality is relevant for the clinical success of implanting an artificial implant in a focal cartilage defect. Therefore it is essential to test the efficacy of newly developed implants against arthritic joint surfaces, and care should be taken when interpreting in vivo studies in which implants are inserted in healthy joints. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - June 5, 2020 Category: Orthopaedics Authors: A.H.A. Damen, M. Nickien, K. Ito, C.C. van Donkelaar Source Type: research

Impact of dual task on postural sway during sit-to-stand movement in children with unilateral cerebral palsy
The insertion of a secondary task seems to interfere differently children with cerebral palsy, depending on the specific demands of each task. Thus, the importance of inserting dual tasks in the interventions is emphasized, considering that they are executed extensively in the day to day, and can act as facilitators or challenge in the execution of functional tasks. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - June 3, 2020 Category: Orthopaedics Authors: Camila Resende G âmbaro Lima, Sílvia Leticia Pavão, Ana Carolina de Campos, Nelci Adriana Cicuto Ferreira Rocha Source Type: research

In vitro comparison of personalized 3D printed versus standard expandable titanium vertebral body replacement implants in the mid-thoracic spine using entire rib cage specimens
Personalized 3D printed vertebral body replacement implants provide a promising alternative to standard expandable devices regarding primary stability and three-dimensional motion behavior in the mid-thoracic spine due to the stabilizing effect of the rib cage. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - June 2, 2020 Category: Orthopaedics Authors: Christian Liebsch, Viktor Aleinikov, Talgat Kerimbayev, Serik Akshulakov, Tugrul Kocak, Morten Vogt, Jan Ulrich Jansen, Hans-Joachim Wilke Source Type: research

The effect of vibration therapy on neck myofascial trigger points: A randomized controlled pilot study
Vibration therapy may be an effective intervention for reducing self-reported neck pain and disability and pressure pain sensitivity in patients with chronic non-specific neck pain. This tool could be recommended for people with non-specific neck pain. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - June 2, 2020 Category: Orthopaedics Authors: L. Due ñas, T. Zamora, P. Sebastià i Balasch, M.A. Artacho-Ramírez, O. Mayoral, E. Lluch, M. Balasch-Bernat Source Type: research

Lean, fast and strong: Determinants of functional performance in the elderly
Higher body fat is associated with weaker stair ascent performance. An increase in the correlation coefficient was observed for the countermovement jump, rate of torque development, and 5-repetition maximum tests when normalized by body fat compared to the absolute values. Countermovement jump height presented the highest correlation to timed-up-and-go and stair descent, while impulse/body fat for stair ascent. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - June 2, 2020 Category: Orthopaedics Authors: Lucas B.R. Orssatto, Ewertton S. Bezerra, Brad J. Schoenfeld, Fernando Diefenthaeler Source Type: research

Editiorial Board
(Source: Clinical Biomechanics)
Source: Clinical Biomechanics - June 1, 2020 Category: Orthopaedics Source Type: research

Clinically derived biomechanical criteria for the Trendelenburg test
The biomechanical criteria developed includes clinically derived coronal plane kinematic cut-offs of the pelvic and trunk angles. The criteria can be used within a motion capture setting for the standardization of the grading the test response. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - June 1, 2020 Category: Orthopaedics Authors: Wilshaw R. Stevens, Chan-Hee Jo, Kirsten Tulchin-Francis Source Type: research

Comparative study of the strength characteristics of a novel wood-plastic composite and commonly used synthetic casting materials
The comparison between Woodcast ® and commonly used synthetic casting materials indicated that Woodcast® is indeed strong enough to be safely used in weightbearing casting applications. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - May 29, 2020 Category: Orthopaedics Authors: Panagiotis E. Chatzistergos, Evangelia Ganniari-Papageorgiou, Nachiappan Chockalingam Source Type: research

Influence of type 1 diabetes on the postural control of women in the third gestational trimester
The findings suggest that type 1 diabetes mellitus in the third trimester of pregnancy is associated with postural changes, a decrease in the active ankle range of motion and increase in the anteroposterior oscillation of the center of pressure, with negative repercussions for postural control. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - May 28, 2020 Category: Orthopaedics Authors: Paola Marini Valerio, Vanessa Ellen Gon çalves, Catarina Clapis Zordão, Monique Silva Rezende, Elaine Christine Dantas Moisés, Elaine Caldeira de Oliveira Guirro Source Type: research

Biomechanical analysis on total knee replacement patients during gait: Medial pivot or posterior stabilized design?
“Stiff knee pattern” mechanism was showed for both patient groups but more enhanced in Medial Pivot patients. Even though the Posterior Stabilized design introduces the non-physiological paradoxical motion and the Medial Pivot design seems to better reproduce the physiological condylar movement as gait analysis parameters, including kinematics, kinetics and electromyographic parameters were closer to control group and, in turn, to physiological gait for the Posterior Stabilized than Medial Pivot group parameters. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - May 28, 2020 Category: Orthopaedics Authors: Francesco Esposito, Marco Freddolini, Massimiliano Marcucci, Leonardo Latella, Andrea Corvi Source Type: research

The potential influence of stochastic resonance vibrations on neuromuscular strategies and center of pressure sway during single-leg stance
The study showed that stochastic resonance vibrations could effectively reduce body sway in the healthy subjects with inhibited foot sensation. The effects seemed to be associated with improved muscle activities in particular to the tibialis anterior muscle. It suggested that vibration insole may be used as a means to affect neuromuscular strategies to enhance balance control in people with diminished plantar sensations. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - May 28, 2020 Category: Orthopaedics Authors: Wen-Ming Chen, Jie-Wen Li, Xiang Geng, Chen Wang, Li Chen, Xin Ma Source Type: research

The effect of a 12-week custom foot orthotic intervention on muscle size and muscle activity of the intrinsic foot muscle of young adults during gait termination
The short-term use of custom-made foot orthoses created a decrease in muscle size of the flexor digitorium brevis, abductor digiti minimi and abductor hallucis plantar intrinsic muscles but had no effect on muscle activity. Clinically, these results help to understand the adaptations that are created when foot orthoses are supporting a pes planus foot structure when reducing plantar pressures. These findings may help enhance the prescription of foot orthoses by adding a strength program to prevent disuse atrophy of these muscles. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - May 27, 2020 Category: Orthopaedics Authors: Katrina Protopapas, Stephen D. Perry Source Type: research

Biomechanical comparison of anterior cruciate ligament repair with internal brace augmentation versus anterior cruciate ligament repair without augmentation
There was higher load to failure, stiffness, and energy to failure for the internal brace group compared to the repair-only group, and a high positive correlation between bone density and load to failure for the internal brace group. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - May 27, 2020 Category: Orthopaedics Authors: Patrick Massey, David Parker, Kaylan McClary, James Robinson, R. Shane Barton, Giovanni Solitro Source Type: research

Non-invasive assessment of motor unit activation in relation to motor neuron level and lesion location in stroke and spinal muscular atrophy
The results suggest, that for stroke, information from the brain is modified thereby resulting in motor units firing at their natural frequency. Thus, high spatial resolution electromyography and the chosen parameters facilitate non-invasive, objective differentiation and analysis of the activation patterns of motor units in neuromuscular disorders. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - May 27, 2020 Category: Orthopaedics Authors: Sybele E. Williams, Kathrin C. Koch, Catherine Disselhorst-Klug Source Type: research

Biomechanical comparison of three different compression screws for treatment of odontoid fractures evaluation of a new screw design
Double-threaded screw is robust against screw stripping, but achieves only low fragment compression. The classic compression screws achieve better compression, but are sensitive to screw stripping. Sleeve-nut screw is superior in compression and as robust as double-threaded screw against screw stripping. Whether the better biomechanical properties lead to a reduction in pseudarthrosis must be proven in clinical trials. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - May 25, 2020 Category: Orthopaedics Authors: Jan-Uwe M üller, Jonas Müller, Sascha Marx, Marc Matthes, Stephan Nowak, Henry Werner Siegfried Schroeder, Dirk Thomas Pillich Source Type: research

Corrigendum to “Partial orthotopic liver transplantation in combination with two-stage hepatectomy: A proof-of-concept explained by mathematical modeling”
The authors regret that one of the authors' last name was misspelled. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - May 23, 2020 Category: Orthopaedics Authors: Nicolas Golse, Florian Joly, Quentin Nicolas, Eric Vibert, Pal Dag Line, Irene Vignon-Clementel Tags: Corrigendum Source Type: research

Real-time visual feedback reduces patellofemoral joint forces during squatting in individuals with patellofemoral pain
Real-time visual feedback appears to be effective for reducing patellofemoral joint forces during squatting in individuals with patellofemoral pain. As a result, training of this nature may be beneficial when treating patellofemoral pain. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - May 21, 2020 Category: Orthopaedics Authors: Thomas Kernozek, Michael Schiller, Drew Rutherford, Amanda Smith, Chris Durall, Thomas Gus Almonroeder Source Type: research

Varus alignment after total knee arthroplasty results in greater axial rotation during deep knee bend activity
Varus alignment resulted in greater axial rotation, which could represent near-normal knee kinematics. The current study can be a kinematic rationale reporting similar or better clinical and functional outcomes for the total knee arthroplasty with residual varus alignment. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - May 19, 2020 Category: Orthopaedics Authors: Kazuya Sekiguchi, Shinichiro Nakamura, Kenji Nakamura, Hiromu Ito, Shinichi Kuriyama, Kohei Nishitani, Richard D. Komistek, Shuichi Matsuda Source Type: research

Deficient knee joint biomechanics in bilateral jumping after anterior cruciate ligament reconstruction
Although ACL-reconstructed individuals showed increases in most kinematic and kinetic variables, they remained below the controls at six months post-ACL reconstruction. The deficits between contralateral legs and compared to the controls show that six months post-ACL reconstruction, knee joint functionality was still not equal between reconstructed and non-injured legs or in comparison to controls. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - May 15, 2020 Category: Orthopaedics Authors: Frieder Cornelius Krafft, Bernd Josef Stetter, Thorsten Stein, Andree Ellermann, Johannes Flechtenmacher, Christian Eberle, Stefan Sell, Wolfgang Potthast Source Type: research

Strain shielding for cemented hip implants
Volumetric strain should be considered for strain shielding examination. The presented methodology may potentially enable patient-specific pre-operative strain shielding evaluation so to minimize strain shielding. It should be further used in a longitudinal study so to correlate between strain shielding predictions and clinical bone resorption. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - May 13, 2020 Category: Orthopaedics Authors: Yekutiel Katz, Zohar Yosibash, Moshe Salai, Nimrod Snir Source Type: research

Feasibility study of a surface-coated lung model to quantify active agent deposition for preclinical studies
The model represents an integral system for continuous, spatial detection of aerosol deposition and allows the analysis of bacterial behaviour and the toxicity of the active agent. Thus, the deposition of antimicrobial aerosols on the bronchial surfaces is characterized in preliminary tests without any animal experiments. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - May 10, 2020 Category: Orthopaedics Authors: Philipp D örner, Philipp M. Müller, Jana Reiter, Martin C. Gruhlke, Alan J. Slusarenko, Wolfgang Schröder, Michael Klaas Source Type: research

Kinetic dysfunction of the wrist with chronic scapholunate dissociation. A cadaver study
Most laboratory studies investigating scapholunate dissociations are based on normal cadaver arms with serially sectioned ligaments. It is assumed that the kinetic behavior of a ligament-sectioned wrist is similar to a scapholunate dissociation. We tested five cadaver wrists with real injuries. The goal of this research was to evaluate the biomechanical behavior of scapholunate advanced collapse wrists compared to an experimental group with simulated injuries. Methods: Using a magnetic 6-degree of freedom motion tracking device, changes in scaphoid alignment induced by isometric loading 5 wrist motor tendons in two groups ...
Source: Clinical Biomechanics - May 10, 2020 Category: Orthopaedics Authors: Guillem Salv à-Coll, Marc Garcia-Elias, Alex Lluch-Bergadà, Mireia Esplugas, Manuel Llusá-Perez Source Type: research

Biomechanics during cross-body lunging in individuals with and without painful cam and/or pincer morphology
The results of this study show that cross-body lunge performance is similar across individuals with and without painful cam and/or pincer morphology. However, future research should aim to better understand pelvis biomechanics during sporting activities, as pelvis sagittal plane excursion may have important implications in rehabilitation and sport performance. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - May 7, 2020 Category: Orthopaedics Authors: Angelo Graffos, Maryam Mohtajeb, Michelle Mony, Jean-Francois Esculier, Jolanda Cibere, David R. Wilson, Charlie Zhang, Sima Zakani, Michael A. Hunt Source Type: research

Lesser magnitudes of lower extremity variability during terminal swing characterizes walking patterns in children with autism
This finding reveals that children with autism may have limited or a preferred movement strategy when preparing the foot for ground contact. The findings from this study suggest variability may be an identifiable characteristic during movement in children with autism. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - May 7, 2020 Category: Orthopaedics Authors: Jeffrey D. Eggleston, John R. Harry, Patrick A. Cereceres, Alyssa N. Olivas, Emily A. Chavez, Jason B. Boyle, Janet S. Dufek Source Type: research

Assessment of fixation for anterior cruciate ligament reconstruction using oversized suspensory devices on full-length femoral tunnels
ACL femoral fixation achieved in full-length single diameter tunnels by using an enlarged suspension device, both with a fixed or an adjustable loop, provide similar biomechanical properties to the gold-standard fixed-loop device in a socket tunnel. Therefore, its clinical use may be safe. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - May 6, 2020 Category: Orthopaedics Authors: Mar ía Prado-Nóvoa, Ana Pérez-Blanca, Alejandro Espejo-Reina, Maximiano Lombardo-Torre, Francisco Ezquerro-Juanco, Alejandro Espejo-Baena Source Type: research

A novel internal fixation method for open book injuries of the pubic symphysis — A biomechanical analysis
The internal fixator that is already proven in spinal surgery is biomechanically superior to conventional implants used in pelvic surgery. The contact area analysis furthermore showed a more physiological loading pattern, which can improve ligamentous healing in a clinical context. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - May 5, 2020 Category: Orthopaedics Authors: Tobias Fritz, Laura Mettelsiefen, Friedemann Strobel, Benedikt J. Braun, Steven C. Herath, Sascha J. Hopp, Tina Histing, Tim Pohlemann, Antonius Pizanis Source Type: research

Finite element analysis of secondary effect of midfoot fusions on the spring ligament in the management of adult acquired flatfoot
This important finding has been unknown to date. We advocate caution regarding fusion of the naviculocuneiform joint as it leads to increased stresses across the Spring ligament and therefore accelerates the development of planovalgus. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - May 5, 2020 Category: Orthopaedics Authors: Christian Cifuentes-De la Portilla, Chandra Pasapula, Ricardo Larrainzar-Garijo, Javier Bayod Source Type: research

Peak sagittal plane spine kinematics in female gymnasts with and without a history of low back pain
These findings suggest that gymnasts with back pain have similar sagittal plane movements to those without back pain. The relationship between back pain and gymnastics training load/intensity is currently unclear. We suggest future studies to investigate common artistic gymnastics skills and back pain prevalence with more participants, full-body motion analysis with kinetic measurement capabilities, and longitudinally for those demonstrating back pain. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - May 5, 2020 Category: Orthopaedics Authors: Ricky Pimentel, Morgan N. Potter, James J. Carollo, David R. Howell, Emily A. Sweeney Source Type: research

Proteoglycans exert a significant effect on human meniscal stiffness through ionic effects
Proteoglycans make a significant ionic contribution to mechanical stiffness of the meniscus, increasing it by 58% in the physiological condition. It is therefore critical that meniscal regeneration strategies attempt to recreate the function of proteoglycans to ensure normal meniscal function. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - May 4, 2020 Category: Orthopaedics Authors: Mr Fahd Mahmood, Mr Jon Clarke, Dr Philip Riches Source Type: research