The dynamic hip screw (DHS) is a widely used method of osteosynthesis. Nevertheless, supplying instable pertrochanteric fractures is problematic because the gliding screw may cause a considerable dislocation of fragments in lateral direction. Is there any alternative method disposable, bearing stability of DHS- osteosynthesis can be improved by adding a lateral T-plate. We reached full bearing stability in four cases.
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http://dx.doi.org/10.1007/BF02588146 | DOI Listing |
ANZ J Surg
January 2025
St Vincent's Hospital Melbourne, Melbourne, Victoria, Australia.
Background: The spinopelvic axis is becoming recognized as an essential contributor to impingement and instability leading to dislocation. Computer-assisted hip surgery uses standing and relaxed-seated radiographs as a surrogate marker of pelvic tilt in all seated positions. However, the flexed-seated position is a high-risk position for dislocation, and the standing and relaxed-seated radiographs may not reflect this risk.
View Article and Find Full Text PDFExp Ther Med
March 2025
OrthoLab, The Rudbeck Laboratory, Department of Surgical Sciences/Orthopedics, Uppsala University, 75185 Uppsala, Sweden.
Silver (Ag) possesses potent antimicrobial properties and is used as a coating for medical devices. The impact of silver ions released from orthopedic implants on the differentiation and osteoid formation of different osteogenic cells has yet to be systematically studied. In the present study, human mesenchymal stem cells (hMSCs) and primary human osteoblasts (hOBs) were exposed to different static Ag concentrations (0, 0.
View Article and Find Full Text PDFJ Biomech
January 2025
School of Sport Science, Beijing Sport University, Beijing, China; Key Laboratory of Exercise Rehabilitation Science of the Ministry of Education, Beijing Sport University, Beijing, China. Electronic address:
Artificial neural networks (ANNs) offers potential for obtaining kinetics in non-laboratory. This study compared the estimation performance for ground reaction forces (GRF) and lower-limb joint moments during sidestepping between ANNs fed with full-body and lower-body landmarks. 71 male college soccer athletes executed sidestepping while three-dimensional kinematics and kinetics were collected to calculate joint moments by inverse dynamic.
View Article and Find Full Text PDFComput Biol Med
January 2025
Khalifa University, Abu Dhabi, United Arab Emirates. Electronic address:
Musculoskeletal modeling based on inverse dynamics provides a cost-effective non-invasive means for calculating intersegmental joint reaction forces and moments, solely relying on kinematic data, easily obtained from smart wearables. On the other hand, the accuracy and precision of such models strongly hinge upon the selected scaling methodology tailored to subject-specific data. This study investigates the impact of upper body mass distribution on internal and external kinetics computed using a comprehensive musculoskeletal model during level walking in both normal weight and obese individuals.
View Article and Find Full Text PDFLife (Basel)
January 2025
Department of Coaching Education, Marmara University Faculty of Sport Sciences, 34815 Istanbul, Turkey.
This study evaluated the validity and reliability of the TecnoBody D-Wall system in assessing joint range of motion (ROM) during overhead squat movements in healthy individuals, using Kinovea as a reference tool for data comparison. A total of 29 participants (16 males, 13 females) with a mean age of 28.41 ± 6.
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