A finite element model to investigate the effect of ulnar variance on distal radioulnar joint mechanics

Greybe, Desney; Boland, Michael R.; Wu, Tsung‐Tsong; Mithraratne, Kumar

doi:10.1002/cnm.2790

Cited by 12 publications

(11 citation statements)

References 47 publications

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“…UV was shown to affect ulnocarpal loading in several cadaveric studies. These studies, in which load was transmitted through the TFCC, confirmed the influence of UV on ulnocarpal loading (15). There are several UV measurement techniques, such as perpendicularis, central reference point, and lateral view.…”

Section: Discussionmentioning

confidence: 57%

The effect of ulnar variance on scapholunate and capitolunate angles

et al. 2017

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Background Ulnar variance (UV), which is measured using anteroposterior (AP) X-rays, is associated with the development of multiple wrist pathologies. The scapholunate angle (SLA) and capitolunate angle (CLA) are measured using lateral X-rays, and these can be used in the diagnosis of intercalated segmental instability. Purpose To determine the effect of UV on SLA and CLA. Material and Methods A total of 140 patients (73 women, 67 men; mean age, 37.8 ± 14.6 years; 95% confidence interval [CI], 35.4-40.3) were included in the study. Participants were excluded if they presented with fractures or malunions, any arthritic conditions, avascular necrosis, congenital deformities, or bone and soft tissue tumors. UV, SLA, and CLA were measured using AP and lateral wrist X-rays. Results Patients were grouped as positive, neutral, and negative UV. There was no statistically significant difference in mean ages, sex, and sides (left or right) between the UV groups ( P > 0.05). In addition, there was no statistically significant difference in the mean values of SLA and CLA between the UV groups ( P > 0.05). UV showed no statistically significant association with SLA and CLA (r = -0.064; P = 0.455, and r = 0.059; P = 0.485, respectively). However, there was a statistically significant association between SLA and CLA (r = -0.482; P < 0.001). Conclusion There is higher prevalence of neutral UV and no correlation between UV with respect to age and sex of patients in the local Turkish population. SLA and CLA are not affected by UV. There is a negative correlation between SLA and CLA.

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Section: Discussionmentioning

confidence: 57%

The effect of ulnar variance on scapholunate and capitolunate angles

et al. 2017

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“…To the best of our knowledge, no other research article is available on whole-bone testing of the elbow. A few research groups, including Burkhart et al, 33 Johnson and Troy, 34 Sakai et al, 36 and Greybe et al 38 have used femur bone values for modeling and design of elbow-related mechanics. However, the bending strength of whole-bone femur samples for the same age group is 195 ± 3.9 MPa.…”

Section: Resultsmentioning

confidence: 99%

“…36 Sakai et al used an elastic modulus of 17 GPa from the experimental results of sectioned frozen femur cortical bones reported by Reilly et al 37 In a study carried out by Greybe et al, the authors developed an FE model to study the effect of ulnar shortening (a treatment for ulnocarpal impaction syndrome) on distal radioulnar joint mechanics. 38 Greybe et al used an elastic modulus of 18 GPa of sectioned frozen cortical bone samples of femur and tibia by Rho and colleagues. 39 There is no uniformity of reference values because of the unavailability of the data.…”

Section: Introductionmentioning

confidence: 99%

Experimental assessment of biomechanical properties in human male elbow bone subjected to bending and compression loads

Singh

Rana

Jhajhria

et al. 2018

Journal of Applied Biomaterials & Functional Materials

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This work discusses the biomechanical testing of 3 elbow bones, namely the humerus, ulna, and radius. There is a need to identify the mechanical properties of the bones at the organ level. The following tests were performed: 3-point bending, fracture toughness, and axial compression. Six sets of whole-bone samples of human male cadaveric humerus, ulna, and radius (age of donor: 35 to 56 years) were tested. The results were analyzed for statistical significance by 2-stage, repeated-measure analysis of variance (ANOVA). The difference between the bending strength of the humerus, ulna, and radius was statistically significant (P = .001) when compared to one another. However, the fracture toughness and compressive strength were observed to be similar for the 3 bones. The knowledge of mechanical properties of elbow bones can aid in the design of elbow implants and upper limb protection systems, and also allow us to identify criteria for injury. Further, knowledge of the mechanical properties of the elbow bones can aid in calibrating simulations through finite elements analysis.

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“…This method is widely used in mechanical engineering to quantify the biomechanical behaviors of complex structures under external forces. [7][8][9][10][11] A considerable amount of literatures have studied the forearm bone strength, microarchitecture, and the comparison between normal and osteoporotic bones in elderly people using FEM. Newitt et al 12 focused on finding the effect of the trabecular region properties of the radius on the force transmission through the distal radius that, in turn, would cause bone fracture in postmenopausal women with and without bone mineral density (BMD) disorders.…”

Section: Introductionmentioning

confidence: 99%

Analysis and validation of a 3D finite element model for human forearm fracture

Liu

Mustafa

Lees

et al. 2022

Numer Methods Biomed Eng

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Most researchers have performed finite element (FE) analysis of the human forearm fracture by exploring the strength and load transmission of the bones. However, few studies concentrated a complete simulation of the whole forearm complex including ligaments. This paper aims to investigate the load transmission through the bones, contact stress at the joints and strain in the ligaments by using an elaborate FE model, further validating the fracture condition for human forearm. The interosseous ligament was separated into three regions based on the distance to the proximal and distal ends. The FE simulation results were slightly more or less than a previous experimental data in the literature, but generally provided a close approximation of the bone and ligament behaviors. Compared with the experiment results under different loading conditions, maximum contact stress at the proximal radio ulnar joint (PRUJ) and distal radio ulnar joint (DRUJ) of the simulations was higher with an average of 13.4%, and peak strain in the interosseous ligament (IOL) was lower with an average of 11.0%. Under 10 kg load, the maximum stress in the radius (2.25 MPa) was less than double the value in the ulna (1.43 MPa). Finally, the FE model has been validated with the onset and location of the Colles' fracture in the literature. This study will provide a great benefit in terms of surgical and medical applications related to forearm fracture that require an extensive knowledge of the behavior of the bones and ligaments under various loading conditions.

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A finite element model to investigate the effect of ulnar variance on distal radioulnar joint mechanics

Cited by 12 publications

References 47 publications

The effect of ulnar variance on scapholunate and capitolunate angles

The effect of ulnar variance on scapholunate and capitolunate angles

Experimental assessment of biomechanical properties in human male elbow bone subjected to bending and compression loads

Analysis and validation of a 3D finite element model for human forearm fracture

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